Pentax Telescope R 315N User Manual

PENTAX R-300 (p01-19) 10/30/02 11:20 AM Page c

Instruction Manual

Electronic Total Station

R-300

SERIES

R-315(N)/R-325(N)/R-335(N)

R-322(N)/R-323(N)/R-326

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PENTAX R-300 (p01-19) 10/30/02 11:20 AM Page 1

PRECAUTIONS REGARDING SAFETY

WARNING

Do not stare into the laser beam directly as this may result in

damage to your eyes. R-300 is a Class II Laser product. (The

reflectorless type is a Class IIIa (3R) laser product.)

Do not look into the laser radiation aperture directly as this may

result in damage to your eyes.

Never use the telescope to view intense light such as direct

sunlight or sunlight reflected through a prism as this may result

in loss of sight.

Do not disassemble, modify or repair this product as there a risk

of laser radiation.

Do not aim the laser beam at a person as it is harmful to the

eyes and body. Receive the examination treatment by the doctor

when the eyesight or body trouble is doubted by any chance.

I Electro-Magnetic Compatibility (EMC):

This instrument complies with the protection requirement for residential and

commercial areas. If this instrument is used close to industrial areas or

transmitters, the equipment can be influenced by electromagnetic fields.

I Do not use this product in a coal mine, in a location where there is coal

dust, or near flammable material as there is a risk of explosion.

I Do not disassemble, modify or repair this product as there is a risk of fire,

electric shock and burn injury. If you think the product requires repair,

contact the retail outlet where you purchased it or an authorized repair site.

I Only use the BC03 battery charger intended for this product as the battery

charger. Use of another battery charger entails a risk of fire or burn injury

from the battery bursting into flames due to possible differences in voltage

or polarity.

I Do not use a damaged electric cord plug or loose electric outlet when

charging as there is a risk of fire or electric shock.

I Do not charge the battery while covered by clothes or similar item as there

is a risk of fire if the clothes ignite.

I Do not use the battery or charger when wet as there is a risk of fire and

burn injury due to short-circuit.

I To prevent making short-circuit when removing the battery and charger from

the case and storing them, apply electrically resistant tape to the poles of

the battery. Storing the battery and charger as-is may result in fire or burn

injury due to short-circuit.

I Do not throw the battery into fire or expose it to heat as there is a risk of

injury if it explodes.

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PENTAX R-300 (p01-19) 10/30/02 11:20 AM Page 2

PRECAUTIONS REGARDING SAFETY

CAUTION

For security, please do the opening inspection and inspection

every a fixed period and adjustment.

When the laser beam enters eyes, an unexpected accident might

be caused by the blink of eyes. Establish the laser product to

avoid the height of eyes of a driving person and walker.

Establish an instrument so that laser beam does not hit a

reflection thing as a mirror and a glass window. The refection

beam of the laser is also harmful to the human body.

Besides the time when you measure the distance, cut off the

power supply or shade the beam of aperture with caps.

Keep the laser product in the place where the person who does

not have the product knowledge such as children does not touch

by mistake.

Destroy the power supply mechanism of the instrument so as not

to emit the laser beam when throwing away it.

I Do not remove the handgrip without good reason. If it does come off, be

sure to attach it securely to the instrument with screws. If it is not fastened

securely, the instrument may fall when you grasp the handgrip, leading to

possible injury.

I Do not short the poles of the battery or charger as there is a risk of injury or fire.

I Do not touch any fluid which may leak from the battery as there is a risk of

chemical burn injury or reaction.

I Do not insert or remove the electric plug with wet hands as there is a risk of

electric shock.

I Do not use the case to stand on as it is slippery and unstable and may

cause you to fall, resulting in possible injury.

I Be sure the tripod itself and the instrument on the tripod are both installed

securely as insecure installation may cause the tripod to fall over or the

instrument to drop, resulting in possible injury.

I Do not carry the tripod with the metal shoe pointing toward another person

as the person may be injured if they strike him or her.

Ni-MH

The instrument contains a rechargeable battery and it is rechargeable.

At the end of its useful life, it may be illegal to dispose of the battery.

Check with your local solid waste officials for details for recycling.

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PENTAX R-300 (p01-19) 10/30/02 11:20 AM Page 3

PRECAUTIONS REGARDING SAFETY

Usage Precautions

Surveying instruments are high-precision instruments. In order to assure that the

Electronic Total Station R-300 series product which you have purchased will

provide long-lasting maximum performance, the precautions in this manual must

be followed. Be sure to follow these instructions and use this product properly at

all times.

[Solar Observation]

WARNING

Never view the sun directly using the telescope as this may result in loss of

sight. Never point the objective lens directly at the sun as this may damage

internal components. When using the instrument for solar observation, be sure

to attach the special solar filter (MU64) designed for this product to the

objective lens.

[Laser Beam]

Do not stare into laser beam. R-300 is a class-II Laser product.

(The reflectorless type is a Class IIIa (3R) laser product.)

[EDM axis]

The R series EDM is the red visible laser beam and the beam diameter is very

small. The beam is emitted from the objective center and the base plate center

hole. The EDM axis is designed to coincide with the telescope sight axis but both

axes may not sometimes coincide slightly according to the intense temperature

change and time lapse.

[Target Constant]

Confirm the Target Constant of the instrument before measurement.

If a different constant is to be used, use the correct constant of the target. The

constant is stored in the instrument's memory when turned off.

[Reflectorless and Reflector sheet]

I The measurement range is determined by the white side of the Kodak Gray

Card facing the instrument and by its surrounding brightness.

There is a possibility that the range may vary when the target does not satisfy

the conditions above at survey work.

I Pay attention to following in case of distance measurement by Reflectorless.

In a situation resulting in low accuracy, perform the distance measurement by

Reflector sheet or Prism. (R-315N/R-325N/R-335N/R-322N/R-323N)

q There is a possibility that correct distance measurement may be impossible by

dispersion or reduction of laser beam when the laser beam comes into the

target from diagonal angle.

w There is a possibility that the instrument cannot calculate correctly when

receiving reflected laser beam from forth and back directions in case of

measuring the target on the road.

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PENTAX R-300 (p01-19) 10/30/02 11:20 AM Page 4

PRECAUTIONS REGARDING SAFETY

e There is a possibility that synthesized values are calculated and the distance

may become longer or shorter than the actual one when the operator

measure the target of slope or sphere or rugged shape.

r There is a possibility that the instrument cannot calculate correctly by

collecting the reflected laser beam from a man or a car that comes and goes

in front of the target.

I When using Reflector sheet, set the Reflector sheet to have its surface be

approx. vertical to the aiming line. If it is positioned not to be approx. right

angle, there is a possibility that correct distance measurement may be

impossible by dispersion or reduction of laser beam.

[Battery & Charger]

I Never use any battery charger other than the BC03 battery charger as this

may result in damage to the instrument.

I If water should happen to splash on the instrument or the battery, wipe it off

immediately and allow it to dry in a dry location. Do not put the instrument in

the case until it is completely dry as this may result in damage to the

instrument.

I Turn off the power when removing the battery from the instrument as

removing the battery while the power is still on may result in damage to the

instrument.

I The battery mark displayed on the instrument is only an estimate of remaining

battery power and is not completely accurate. Replace the battery quickly

when it is about to run down as the time a battery lasts on one charge differs

depending on conditions of ambient temperature, and the measurement mode

of the instrument.

I Confirm the battery level remaining before operating.

[Auto focus]

The Auto focus mechanism is very precise but will not function under every

condition. Focusing depends on brightness, contrast, the shape and size of the

target.

In such a case, press the AF button and focus on the target by operating the

Power focus key or the AF ring.

[LD POINT, Laser pointer]

When you make a correct direction using the “LD POINT”, aim the laser beam at

the wall and mark the center and then confirm the discrepancy between the

reticle center and the marked point beforehand.

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PENTAX R-300 (p01-19) 10/30/02 11:20 AM Page 5

PRECAUTIONS REGARDING SAFETY

[Storage and Operating Environment]

I To prevent making short-circuit when removing the battery and charger from

the case and storing them, apply electrically resistant tape to the poles of the

battery. Storing the battery and charger as is may result in fire or burn injury

due to short-circuit.

I Avoid storing the instrument in places subject to extreme high, low or radically

fluctuating temperature. (Ambient temperature range during use: –20° C to

+50° C)

I Distance measurements may take longer when atmospheric conditions are

poor such as when heat shimmer is present. When storing the instrument,

always put it in its case and avoid storage in dusty location or location subject

to vibration or extreme heat or humidity.

I Whenever there is a sharp temperature difference between the instrument’s

storage and usage locations allow the instrument to adjust to the ambient for

an hour or more before use. Be sure to protect the instrument from the sun if

the location is subject to intense direct sunlight.

I During surveys for which the survey precision or atmospheric measurement

method has been defined measure the atmospheric temperature and

pressure separately and enter those values rather than using the Automatic

Atmospheric Correction function.

I The battery should be charged approximately once per month if the

instrument is to be stored for an extended period of time. The instrument

should also be removed from its case occasionally and aired out.

I In addition to these precautions, be sure to handle the instrument properly at

all times following the descriptions given in the various sections of this manual

to assure safe and proper measurements.

[Transporting and Carrying the Instrument]

I Be careful to protect this instrument from shock of impact and excessive

vibration which may result in damage during transportation and shipment.

I When transporting the instrument, always put it in the case and wrap shock-

absorbing material around it and be sure it is handled as “FRAGILE”.

[Checks and Repairs]

I Always check the instrument before beginning work and check that the

instrument is maintaining the proper level of precision. Pentax bears

absolutely no responsibility for damages due to survey results obtained from

surveys conducted without an initial instrument check.

I Never disassemble the instrument, battery or charger even if you do detect an

abnormality as there is a risk of fire or electric shock due to short-circuit. If

you think the product requires repair, contact the retail outlet where you

purchased it or an authorized repair site.

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PENTAX R-300 (p01-19) 10/30/02 11:20 AM Page 6

CONTENTS

PRECAUTIONS REGARDING SAFETY

Safety Precautions ............................................................................................ 1

Usage Precautions ............................................................................................ 3

BEFORE USING THE INSTRUMENT

1-1 Names of Parts ................................................................................... 9

1-2 Unpacking and Packing .................................................................... 11

1-3 Standard equipment ......................................................................... 11

1-4 Attaching and Charging the Battery ................................................. 12

DISPLAY AND KEYBOARD

2-1 Display and Keyboard ...................................................................... 16

2-2 Operation Key ................................................................................... 16

2-3 Function Key ..................................................................................... 17

2-4 Alphanumeric Input .......................................................................... 19

2-5 LD Point, Laser pointer ..................................................................... 19

PREPARATION FOR SURVEYING

3-1 Centering and Leveling of the Instrument ........................................ 20

3-2 Laser plummet .................................................................................. 20

3-3 Optical plummet (Option) ................................................................. 22

3-4 Leveling with Circular vial ................................................................. 23

3-5 Leveling with Electronic vial ............................................................. 23

3-6 Eyepiece Adjustment ........................................................................ 25

3-7 Target Sighting ................................................................................. 26

3-8 Attachment and Detachment of Tribrach .......................................... 32

TURNING THE POWER ON

4-1 Turning the Power On and Off .......................................................... 33

4-2 Adjusting LCD Contrast .................................................................... 34

4-3 Adjusting Illumination Brightness ..................................................... 35

4-4 Adjusting Reticle Illumination ........................................................... 35

ANGLE MEASUREMENT

5-1 Measuring an Angle ......................................................................... 36

5-2 Resetting the Horizontal Angle to 0 ................................................. 37

5-3 Holding the Horizontal Angle ............................................................ 37

5-4 Inputting an Arbitrary Horizontal Angle ............................................ 38

5-5 Displaying the % Slope of the Vertical Angle ................................... 40

5-6 Changing the Horizontal Angle

from Clockwise to Counterclockwise ................................................ 41

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PENTAX R-300 (p01-19) 10/30/02 11:20 AM Page 7

CONTENTS

DISTANCE MEASUREMENT

6-1 Target Setting ................................................................................... 42

6-2 Distance Measurement .................................................................... 44

CORRECTION MODE

7-1 Changing the Target Constant .......................................................... 46

7-2 Changing the Temperature ............................................................... 48

7-3 Changing the Atmospheric Pressure ............................................... 50

7-4 Changing the ppm Value .................................................................. 52

INITIAL SETTING

8-1 Overview ........................................................................................... 53

8-2 Entering the Mode for Initial Setting 1 .............................................. 53

8-3 Entering the Mode for Initial Setting 2 .............................................. 53

8-4 Entering the Mode for Initial Setting 4 .............................................. 54

8-5 Entering the Mode for Initial Setting 5 .............................................. 54

8-6 Example of Changing an Initial Setting Content .............................. 55

8-7 Initial Setting 1 .................................................................................. 56

8-8 Initial Setting 2 .................................................................................. 57

8-9 Initial Setting 4 .................................................................................. 60

8-10 Initial Setting 5 .................................................................................. 61

ACCSESSING THE FUNCTIONS

9-1 Accessing by Help key ..................................................................... 62

9-2 Accessing by 007 ............................................................................. 63

CHECKS AND ADJUSTMENTS

10-1 Electronic Vial ................................................................................... 65

10-2 Circular Vial ...................................................................................... 67

10-3 Vertical Reticle .................................................................................. 68

10-4 Perpendicularity of Line of sight to horizontal axis ........................... 69

10-5 Vertical 0 point error ........................................................................ 70

10-6 Laser Plummet .................................................................................. 71

10-7 Optical Plummet ............................................................................... 72

10-8 Offset Constant ................................................................................ 73

10-9 Beam axis and Line of sight ............................................................. 74

10-10 The EDM beam axis ......................................................................... 74

SPECIFICATIONS

DATA COLLECTOR

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PENTAX R-300 (p01-19) 10/30/02 11:20 AM Page 8

CONTENTS

APPENDIX

13-1 Error Messages ................................................................................ 79

13-2 Atmospheric Correction .................................................................... 80

13-3 hPa and mmHg Conversion Tables .................................................. 81

13-4 Error when no Atmospheric Correction is made .............................. 82

13-5 Atmospheric Refraction and Earth Curvature Correction ................ 83

13-6 Distance Range ................................................................................ 84

NOTICE TO THE USER OF THIS PRODUCT

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PENTAX R-300 (p01-19) 10/30/02 11:21 AM Page 9

1 BEFORE USING THE INSTRUMENT

1-1 Names of Parts

Collimator

Focusing knob

AF button

Power focus key

Laser indicator

Instrument height

mark

Eyepiece

Battery latch

Battery pack

Circular vial

Telescope tangent

screw

Display panel

Telescope clamp

screw

Key board

Clamp screw

Circular vial

Tangent screw

Detaching knob

Base plate

Leveling screw

R-325(N)/R-322(N)/R-323(N): Detachable type

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PENTAX R-300 (p01-19) 10/30/02 11:21 AM Page 10

1 BEFORE USING THE INSTRUMENT

Top handle

Objective lens

Centering knob

I Dual display panel is an optional accessory.

R-335 (N): Shift type

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PENTAX R-300 (p01-19) 10/30/02 11:21 AM Page 11

1 BEFORE USING THE INSTRUMENT

1-2 Unpacking and Packing

Unpacking the Instrument from the case

q Set the case down gently with the lid facing upwards.

w Open the latches while pressing down on the lock (safety mechanism) and

open the lid of the case.

e Remove the instrument from the case.

Packing the Instrument in the case

q Make sure the telescope is fairly level and lightly tighten the telescope clamp

screw.

w Line up the housing marks (round yellow marks on the instrument) and tighten

the upper and lower clamp screws.

e With the housing marks facing upward, set the instrument gently in the case

without forcing it.

r Close the lid to the case and secure the latches.

1-3 Standard equipment

q Instrument

w Carrying case

e BP02 battery

r BC03/AC01 charger

t Plumb bob

y Hexagonal wrench

u Rain cover

i Quick Reference Guide (Basic , PTL and PSF procedures)

o CD-R (Basic operation & Special Functions manual)

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PENTAX R-300 (p01-19) 10/30/02 11:21 AM Page 12

1 BEFORE USING THE INSTRUMENT

1-4 Attaching and Charging the Battery

Removing the Battery

q Turn the lock lever anticlockwise and remove the Battery.

w Lift up the battery pack and remove it from the instrument.

I Be absolutely sure to turn the power off when removing the battery as

removing the battery while the power is still on may result in damage to the

instrument.

Attaching the Battery

q Align the guide grooves on the battery pack with the guide grooves on the

instrument and push the top of the battery pack into place.

w Turn the lock lever clockwise to fix.

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PENTAX R-300 (p01-19) 10/30/02 11:21 AM Page 13

1 BEFORE USING THE INSTRUMENT

Remaining Battery Charge

When the instrument’s power is turned on, a battery mark “

” will be

displayed on the right of the display screen. This mark can be used to check the

charge status of the battery.

Plenty of charge left.

Get the spare battery ready.

Replace with the spare battery.

Low battery: Please change. Replace with the spare battery or charge.

Charging the battery

I The battery BP02 is not charged at our factory shipment so charge it.

I For BP02 charge, use the special BC03 charger.

Charger

Power supply cord

AC adaptor

[Connection of code]

q Insert the output plug of the power supply code in Jack of the AC adaptor.

w Insert the output plug of the AC adaptor in Jack of the charger.

e Insert the power supply plug of the power supply code in the outlet of AC

power supply.

[Installation of battery]

q Draw the battery to the lock lever side and put it on the battery pocket. The

battery is firmly installed on the battery pocket.

w Press down the battery and then slide it to the opposite direction of the lock

lever.

e The lock lever goes up, and the battery is fixed.

r Under such a condition, if “Connection of the code” is done, the charge with

the battery is begun.

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1 BEFORE USING THE INSTRUMENT

Battery

Battery pocket

Lock lever

Charger

[Detaching the battery]

q Press the lock lever and slide the battery to the lock lever direction.

w Detach the battery packing from the battery pocket.

[Display panel]

q Power supply lamp (red) : Turns on when the power supply is turned on.

w Charge lamp (green)

: Turns on while charging and turns off when the

charge is completed.

e Discharge lamp (yellow) : Turns on when you push the discharge button.

Turns off when the discharge is completed.

r Installation lamp (red)

: Blinks or turns on when the battery packing is

attached normally.

Blinks when charge or discharge and turns on

when charge is completed.

(The charge lamp in the lower does not blink and

does not turns on)

t Discharge button

: Discharge lamp lights when you push this button,

and the discharge of battery begins.

PENTAX R-300 (p01-19) 10/30/02 11:21 AM Page 15

1 BEFORE USING THE INSTRUMENT

[How to charge]

q It begins charging automatically when you set the battery packing in the

charger which beams the power supply lamp.

w Leave just as it is until the charge is completed.

e When the charge is completed, the charge lamp is turned off.

r Detach the battery packing from the charger when the charge is completed.

Refreshing the battery

The use time shortens gradually by the phenomenon of “Effect of the memory”

when the NiMH battery leaves capacity and repeats the charge. The voltage

recovers after refreshing and the use time returns normally in such a battery.

Please refresh one degree every five times of the charge.

[Refreshing]

Set the battery in the charger as well as the case of the charge. Push the

electrical discharge button. The electrical discharge lamp lights and the electrical

discharge begins.

The electrical discharge lamp is turned off when the electrical discharge ends,

the charge lamp lights, and the charge starts automatically. Leave just as it is

until the charge is completed. When the charge is completed, the charge lamp is

turned off. Detach the battery from the charger.

[Time of refreshing and charge]

Battery BP02 is discharged from the state of a full charge at about 960 minutes

and the charge is completed from the electrical discharge at about 130 minutes.

However, the electrical discharge time is proportional to the remainder capacity

of the battery. Moreover, the time required for refreshing might be different from

the above-mentioned time according to a surrounding temperature and the state

of the battery.

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PENTAX R-300 (p01-19) 10/30/02 11:21 AM Page 16

2 DISPLAY AND KEYBOARD

2-1 Display and Keyboard

ABC

DEF

Alphanumeric

and +/- key

GHI

JKL

MNO

PQRS

TUV

WXYZ

+/-

Enter key

ESC

ENT

HELP

Laser

Power supply key

Function key Illumination key ESC key Laser plummet and

Electronic vial key

2-2 Operation Key

Key

Description

[POWER]

ON/OFF of power supply

[ESC]

Returns to previous screen or cancels an operation.

[Illumination]

Turns the illumination of the LCD display and telescope reticle on and off.

[ENT]

[Laser]

Accepts the selected (highlighted) choice or the displayed screen value.

Displays the laser plummet *1, electronic vial function, and the LD point

screen when you push the laser plummet/electronic vial key.

(Refer to “2-5 Laser Pointer”, “3-2 Laser plummet”, and “3-5 Leveling with

Electronic vial”).

*1:Only the product with the laser plummet function

At the numerical value screen, the numerical value and the sign ‘.’ displayed

are input. The English characters printed right under numeric of each key are

input.

[ Alphanumeric]

[HELP]

Pressing [lLLU]+[ESC] key causes a help menu to appear in A MODE or B

MODE or causes a help message to appear.

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PENTAX R-300 (p01-19) 10/30/02 11:21 AM Page 17

2 DISPLAY AND KEYBOARD

2-3 Function Key

Display

F. Key

Description

Mode A

[MEAS]

Pressing this key one time measures the distance in normal mode

another measurement type can be selected by Initial Setting 2.

Pressing this key twice measures the distance in coarse mode another

measurement type can be selected by Initial Setting 2.

[TARGET]

Select the target type by following order.

SHEET/ REFRECTORLESS /PRISM

(Reflectorless type instrument)

SHEET/PRISM

(Prism type instrument)

[0 SET]

[DISP]

Resets the horizontal angle to 0° 0’ 0” by pressing twice.

Switches the display composition in the order

“H.angle/H.dst./V.dst.”, “H.angle/V.angle/S.dst.” and

“H.angle/V.angle/H.dst./S.dst./V.dst.”.

[MODE]

Switches the screen between MODE A and MODE B.

Mode B

[S.FUNC]

[ANG SET]

PowerTopoLite or PSF

Brings up the angle setting screen for setting angle-related parameters

(H.ANGLE/%GRADE, H.ANGLE INPUT and R/L REVERSE).

[HOLD]

[CORR]

[MODE]

Pressing this key twice retains (holds) the horizontal angle shown on the

display.

Brings up the screen for changing the Target constant, Temperature,

Pressure setting.

Switches the screen between MODE A and MODE B.

Other functions

[f]

Moves the cursor to the left.

[e]

Moves the cursor to the right.

[I]

Goes back five Items on the screen.

Goes forward five items on the screen.

Changing the Reticle illumination when pressing Illumination key.

Moves the cursor up.

[I]

[RETICLE]

[g]

[LCD]

[h]

Changing the LCD contrast when pressing Illumination key.

Moves the cursor down.

[ILLU]

[CLEAR]

[SELECT]

Changing the LCD illumination when pressing Illumination key.

Clear the figure.

Open the selection window.

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PENTAX R-300 (p01-19) 10/30/02 11:21 AM Page 18

2 DISPLAY AND KEYBOARD

[How to move the menu number]

Example:

ANGLE SET

1.ANGLE / %GRADE : ANGLE

2.H. ANGLE INPUT : 092° 30' 20"

3.R/L REVERSE : RIGHT

The cursor is located at Menu 1.

SELECT

ANGLE SET

Press the numeric key 0 and 2

to move to Menu 2 or press [F4] [h].

1.ANGLE / %GRADE : ANGLE

2.H. ANGLE INPUT : 092° 30' 20"

3.R/L REVERSE : RIGHT

SELECT

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PENTAX R-300 (p01-19) 10/30/02 11:21 AM Page 19

2 DISPLAY AND KEYBOARD

2-4 Alphanumeric Input

The point name is inputted by the Alphanumeric keys as following.

Key

[0]

Letter under Key

Letter & Figure order to input

[@][.][_][-][:][/][0]

[1]

PQRS

TUV

[P][Q][R][S][p][q][r][s][1]

[T][U][V][t][u][v][2]

[2]

[3]

WXYZ

GHI

[W][X][Y][Z][w][x][y][z][3]

[G][H][I][g][h][i][4]

[4]

[5]

JKL

[J][K][L][j][k][l][5]

[6]

MNO

[M][N][O][m][n][o][6]

[7]

[

][?][!][_][ ][^][|][&][7]

[8]

ABC

DEF

[A][B][C][a][b][c][8]

[D][E][F][d][e][f][9]

[.][,][:][;][#][(][)]

[9]

[.]

[+/-]

[+][-][*][/][%][=][<][>]

2-5 LD POINT, Laser Pointer

The Laser pointer function turns the laser beam on continuously to become the

aiming point so that visual confirmation is possible.

q When the [LD POINT] key is pressed after pressing the [Laser] key, the Laser

pointer function is turned on. The Laser indicator is turned on and the “

mark on the left of the screen blinks while the Laser pointer function is

operating.

”

w If the [Laser] key is pressed and the [LD POINT] key is pressed while the

Laser pointer function is operating, the Laser pointer function is turned off.

I The beam of the sun is strong and visual confirmation is difficult in daytime

when outdoors.

I The laser beam is designed not to be able to observe through the telescope.

I Please visually align the laser beam to the target and mark the center.

Confirm the alignment (horizontal and vertical ) before measuring when

performing accurate work like stake out when using the Laser pointer function.

Also refer to 10-10. The EDM beam axis.

I Please do not look at the laser source of beam directly.

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PENTAX R-300 (p20-52) 10/30/02 11:08 AM Page 20

3 PREPARATION FOR SURVEYING

3-1 Centering and Leveling of the Instrument

Setting up the instrument and the tripod

q Adjust the tripod legs so that a height suitable for observation is obtained

when the instrument is set on the tripod.

w Hang the plumb bob on the hook of the tripod, and

coarse center over the station on the ground. At this

time, set the tripod and fix the metal shoes firmly

into the ground so that the tripod head is as level as

possible, and the plumb bob coincides with the

station on the ground.

e If the tripod head is mis-leveled by the action of

fixing the metal shoes into the ground, correct the

level by extending or retracting each leg of the

tripod.

Instrument

Contract

Base plate

Tripod head

Center screw

Metal shoe

3-2 Laser plummet

Laser plummet model

The laser plummet is not set to be ON at factory shipping. The laser plummet

operation of power supply ON can be set by command No 520, LD PLUM & E

VIAL. For using Command number, refer to 9-2. Accessing by 007.

[For the Detaching type laser plummet equipment model]

Turn on the laser plummet function by pushing the Laser key.

Match the position with the leveling screw so that the laser mark coincides with

the ground mark.

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PENTAX R-300 (p20-52) 10/30/02 11:08 AM Page 21

3 PREPARATION FOR SURVEYING

[For the Shift type laser plummet equipment model]

● Turn on the laser plummet function by pushing the Laser key.

● Match the position by the tripod so that the laser mark coincides with the

ground mark.

● The centering knob is loosened, and the upper plate is pushed by the tip of a

finger, and a center mark is matched to the ground mark.

● Tighten the centering knob.

● Loosen the horizontal clamp screw, and rotate the instrument by 90°, and

confirm the vial of the circular vial is at the center at any position.

Correct the vial with the leveling screw when the vial comes off from the

center.

[Brightness adjustment of laser]

Sometimes the state of the surface of the ground mark or a surrounding

environmental dose not allow observing the laser spot easily. Please adjust the

brightness of the laser if necessary.

If the Laser key is pressed, the brightness

LD PLUM. POWER ADJ

adjustment screen of the laser plummet

device, is displayed.

DOWN

ENT

The Laser plummet becomes dark by , key

LD PLUM. POWER ADJ

and becomes bright by / key

DOWN

ENT

The adjustment is completed with the ENT

key and it returns to electronic vial screen.

ELECTRONIC VIAL

T.COMP.

30"/1DIV

LD POINT PLUM ADJ

SENS.

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PENTAX R-300 (p20-52) 10/30/02 11:08 AM Page 22

3 PREPARATION FOR SURVEYING

● The brightness adjustment step of the laser is 10 steps.

● The laser plummet spot can become difficult to see in bright sunlight which

makes it difficult to perform the occasional check. In this case, use your foot or

the carrying case to make a shadow over the laser position.

● The laser plummet is adjusted to be within ±0.8 mm at the instrument height

of 1.5m at factory shipping.

● Please confirm the amount of the gap (direction of X and Y direction) with the

laser plummet beforehand compared with plumb bomb etc. when working like

accurately putting out a perpendicular direction using the laser plummet

function.

● Please do not look at the laser source of beam directly.

3-3 Optical plummet (Option)

[Detachable type]

q Look through the optical plummet eyepiece, and rotate the eyepiece knob until

the center mark can be seen clearly.

w Rotate the focusing knob of the optical plummet and adjust the focus to the

station on the ground.

e Rotate the levelling screws and aligh the center mark to the ground mark.

[Shift type]

q Look through the optical plummet eyepiece, and rotate the eyepiece knob until

the center mark can be seen clearly.

w Rotate the focusing knob of the optical plummet and adjust the focus on the

ground mark.

e Loosen the centering clamp screw and push the upper plate by finger and

stay the center mark on the ground mark.

r Tighten the centering clamp screw.

t Loosen the horizontal clamp screw and rotate the instrument every 90° and

confirm the Circular vial is centered correctly. If the bubble is not centered, it

can be properly set using the leveling screws.

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3 PREPARATION FOR SURVEYING

3-4 Leveling with Circular vial

Tripod is adjusted according to the following points by extending or contracting

the legs so that the bubble of the Circular vial goes to the center of the circle.

● Shorten the leg at the side of the bubble or extend the leg opposite of the

bubble to position the bubble in the center of the vial circle.

● All three legs are extended or contracted until the bubble is in the center.

During this process, the foot is not placed on the tripod leg point and the

position of the tripod points do not change.

3-5 Leveling with Electronic vial

[Electronic vial screen]

1. If the Laser key is pushed, it becomes a

display screen for the Electronic vial.

2. It returns to the former screen by the [ESC]

key.

● When R-300 instrument is seen at the position of “Left circle position”, the

screen in the electronic vial shows the correct movement direction. Please

note that the movement of the electronic vial is in the opposite direction when

the observing in “Right circle position”.

● When instrument is within the tilt compensation range, length and

sidewise±3’, “ON” is displayed at the right screen, “OVER” is displayed beyond

the limits of range and “NIL” is displayed at no compensation setting.

● With command No “520” or “Initial setting 2”, when the [TILT DISP] is selected

as ON, the [F1-TILT] of the vial screen becomes effective. The Vial tilt value is

indicated when pushing the [TILT] key. With “TILT DISP.UNIT”

PENTAX R-300 (p20-52) 10/30/02 11:08 AM Page 24

3 PREPARATION FOR SURVEYING

[Leveling]

(A)

q Rotate instrument horizontally and make two

Leveling screws arbitrarily chosen parallel to

the display.

w Turn on the Electronic vial function by pushing

the Laser key.

Put the bubble of the Circular vial in the

center of the circle when the display shows

“TILT OVER”.

Leveling screw

e Turn two Leveling screws arbitrarily chosen in

an opposite direction mutually and put the vial

of the horizontal Electronic vial in the center.

(Figure A)

(B)

Leveling screw

r Put the bubble of the lengthwise Electronic

vial in the center by operating the Leveling

screw of one remainder. (Figure B)

t The procedures are different according to the

state of the Automatic inclination correction as

following.

[When using the Automatic inclination correction by 2 axes]

Please read procedure y because the horizontal angle and the perpendicular

angle error by a perpendicular axis are automatically corrected.

[When using the Automatic inclination correction by 1 axis]

The instrument is horizontally rotated by 180° after the bubble of the

Electronic vial is adjusted on the center at a Left circle position side and

confirm that the bubble of the vial is at the center at the right circle position.

[When using without Automatic inclination correction]

Confirm the bubble is at the center even if the instrument is rotated by each

90°.

y Confirm whether the plummet is on the ground mark. When you confirm it is

not on the mark, loosen the center screw and move the instrument over the

ground mark correctly and fix the instrument by a center screw. Repeat from

q to y.

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PENTAX R-300 (p20-52) 10/30/02 11:08 AM Page 25

3 PREPARATION FOR SURVEYING

Vertical line (single)

3-6 Eyepiece Adjustment

Eyepiece adjustment

The eyepiece adjustment is performed before

target sighting.

q Remove the telescope lens cap.

Horizontal

line

w Point the telescope at a bright object, and rotate

the eyepiece ring full counter-clockwise.

e Look through the eyepiece, and rotate the

eyepiece ring clockwise until the reticle appears

as its maximum sharpness.

Sight axis

Vertical lines (double)

● When looking into the eyepiece, avoid an intense look to prevent parallax and

eye fatigue.

● When it is hard to see the reticle due to poor brightness, press [ILLU] to

illuminate it . For adjusting intensity of brightness, refer to page 35.

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PENTAX R-300 (p20-52) 10/30/02 11:08 AM Page 26

3 PREPARATION FOR SURVEYING

3-7 Target Sighting

[Auto focus]

The Auto focus mechanism is very precise but will not function under every

condition. There is a slight possibility of focusing failure owing to brightness,

contrast, the shape and size of the target.

In such a case, press the AF button and focus on the target by operating the

Power focus key or the AF ring.

No contrast like a white wall

Bright back light

Obstacle in front of a target

A wall composed of

single horizontal lines

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PENTAX R-300 (p20-52) 10/30/02 11:08 AM Page 27

3 PREPARATION FOR SURVEYING

[Target sighting by Auto focus]

The Auto focus of R-300 series has following two modes.

1. Normal mode : Pressing AF button focuses on the target.

2. Continuous mode : Pressing AF buttons for two seconds beeps, and releasing

the key enters into the Continuous mode. This mode

enables you to perform the Auto focus approx. for one

minutes only by sighting through the telescope and

following the target.

Normal mode

: Press the AF button.

Continuous mode : Pressing AF buttons for two

seconds beeps and release the key.

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PENTAX R-300 (p20-52) 10/30/02 11:08 AM Page 28

3 PREPARATION FOR SURVEYING

[Auto focus :Target sighting by Normal mode]

q Loosen the telescope clamp and horizontal clamp screws.

w Point the telescope at the target using a collimator.

e Tighten the above two screws.

r Adjust the eyepiece.

t Look through the telescope and press the AF button. Move your eye vertically

and horizontally to see if the target image moves in relation to reticle.

y Align the reticle accurately on the target using telescope and horizontal

tangent screws.

Target

Collimator

AF button

Collimator

Target sighting

● If the target image does not move, there is no parallax. If it moves, eliminate

the parallax.

● Even when vertical angle measurement is not performed, it is recommended

that the target should be placed at the reticle center.

● Operating the Power focus key rotates the AF ring, so do not touch it while it

is rotating.

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PENTAX R-300 (p20-52) 10/30/02 11:08 AM Page 29

3 PREPARATION FOR SURVEYING

[Auto focus :Target sighting by Continuous mode]

q Loosen the telescope clamp and horizontal clamp screws.

w Point the telescope at the target using a collimator.

e Tighten the above two screws.

r Adjust the eyepiece.

t Look through the telescope and then press the AF button for two seconds to

beep, and release the key to enter into the Continuous mode.

y Align the reticle accurately on the target using telescope and horizontal

tangent screws.

u Point the telescope to the next target as well.

Target

Collimator

AF button

Pressing AF

buttons for two

seconds beeps and

release the key.

Collimator

Target sighting

● Keep the target close to the reticle center when following it by the Continuous

mode.

● Continuous mode automatically ceases after approx. one minute.

● Pressing the AF button or operating the Power focus key releases the

continuous mode.

● Operating the Power focus key rotates the AF ring, so do not touch it while it

is rotating.

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PENTAX R-300 (p20-52) 10/30/02 11:08 AM Page 30

3 PREPARATION FOR SURVEYING

[Auto focus :Target sighting by Power focus mode]

q Loosen the telescope clamp and horizontal clamp screws.

w Point the telescope at the target using a collimator.

e Tighten the above two screws.

r Adjust the eyepiece.

t Look through the telescope, and then operate the Power focus key and focus

on the target.

y Align the reticle accurately on the target using telescope and horizontal

tangent screws.

Collimator

Target

Collimator

Power focus key

Target sighting

● Tilting the Power focus key “clockwise” makes it possible to focus on closer

objects and “counterclockwise” will focus on farther objects.

● Tilting angle of the Power focus key makes it possible to perform following

three focusing speeds.

Low speed : When tilted to middle position by approx. 5 degrees

Middle speed : When tilted fully by approx. 10 degrees

High speed : When tilted fully by approx. 10 degrees and passed one

second

● Operating the Power focus key rotates the AF ring, so do not touch it

while it is rotating.

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PENTAX R-300 (p20-52) 10/30/02 11:08 AM Page 31

3 PREPARATION FOR SURVEYING

[Target sighting by Manual focus]

q Loosen the telescope clamp and horizontal clamp screws.

w Point the telescope at the target using a collimator.

e Tighten the above two screws.

r Adjust the eyepiece.

t Look through the telescope and then rotate the AF ring and stop it where the

target can be seen clearly and the target image does not move in relation to

reticle even if your eye is vertically and horizontally moved.

y Aligh the reticle accurately on the target using telescope and horizontal

tangent screws.

Collimator

AF ring

Target

Collimator

Target sighting

● The AF ring rotation “clockwise” makes it possible to focus on closer objects

and “counterclockwise” will focus on further objects.

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PENTAX R-300 (p20-52) 10/30/02 11:08 AM Page 32

3 PREPARATION FOR SURVEYING

3-8 Attachment and Detachment of Tribrach

The tribrach of R-322, 323, 325, 322N, 323N, 325N, and 326 are detachable

from the instrument if required when replacing the instrument with a target or unit

prism for example.

Detachment

First loosen the recessed screw with a screwdriver, then rotate the locking knob

until the arrow points upward, and lift the instrument up.

Attachment

Mount the instrument on the tribrach with the guide marks coinciding, and rotate

the locking knob until the arrow points downward.

The guide and guide mark must be fitted to attach the instrument.

When the tribrach does not need to be attached or detached or instrument is to

be transported, tighten the recessed screw with a screwdriver to fix the locking

knob.

Instrument

Guide mark

Tribrach

Recessed screw

Tribrach locking lever

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PENTAX R-300 (p20-52) 10/30/02 11:08 AM Page 33

4 TURNING THE POWER ON

4-1 Turning the Power On and Off

Pressing the [POWER] key shows the initial

screen.

ELECTRONIC VIAL

T.COMP.

(The [POWER] key is also used to turn the

power off.)

30"/1DIV

After a few seconds, it turns to Electronic vial

screen. Move the vials to center by adjusting

the leveling screws.

LD POINT PLUM ADJ

SENS.

Pressing the [ENT] key views the angle

and distance measurement screen.

MODE A

15°C

S 0

H. angle

H. dst.

V^{. dst.}

85° 39' 40"

000° 00 00

000° 00

MEAS TARGET 0 SET

DISP

MODE

● The Auto Power Off function will automatically turn the power off if no

operations are performed for approximately 10 minutes. (Factory default

setting)

● The [POWER] key is controlled by software in the instrument while it is

working, and this key is valid only when turning off causes no problem.

● The value displayed when the power was last time turned off will be displayed

for the horizontal angle. If this horizontal angle is not needed, please perform

horizontal angle 0 SET.

For details on resetting the horizontal angle 0 ............See page 37.

For details on changing the horizontal angle from

clockwise to counterclockwise ...............................See page 41.

For details on measuring the vertical angle .................See page 40.

For details on distance measurement .........................See page 42.

For details on the automatic power-off function ..........See page 59.

For details on the Electronic vial ..................................See page 65.

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PENTAX R-300 (p20-52) 10/30/02 11:08 AM Page 34

4 TURNING THE POWER ON

4-2 Adjusting LCD Contrast

Press [F4] while holding down the Illumination

key to access the screen for adjusting LCD

contrast.

LCD DENSITY ADJ

LOW

HIGH

ENT

Pressing [F1] [ ] will lighten the

contrast,while pressing the [F2] [ ] will

darken the contrast.

LCD DENSITY ADJ

LOW

HIGH

ENT

Press [ENT] to exit adjustment mode and

return to the previous screen.

MODE A

H. angle

H^{. dst.}

V^{. dst.}

MEAS TARGET 0 SET

15°C

85° 39' 40"

000° 00 00

000° 00

DISP

MODE

● Pressing the Illumination key views the F3-RETICLE, F4-LCD and F5-ILLU.

● LCD contrast may be adjusted as necessary at any time.

● The contrast may be adjusted to any one of 25 levels.

● LCD contrast may be unappealing under certain environmental conditions

such as high temperature. Adjust the LCD contrast as described above in

such situations.

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PENTAX R-300 (p20-52) 10/30/02 11:08 AM Page 35

4 TURNING THE POWER ON

4-3 Adjusting Illumination Brightness

Press [F5] while holding down the Illumination

key to access the screen for adjusting

illumination brightness.

ILLU INTENSITY ADJ

DOWN

ENT

Pressing the [F1] [f] will decrease brightness,

while pressing the [F2] [e] will increase

brightness.

ILLU INTENSITY ADJ

DOWN

ENT

Press [ENT] to exit adjustment mode and

return to the previous screen.

MODE A

H. angle

H. dst.

V^{. dst.}

MEAS TARGET 0 SET

15°C

85° 39' 40"

000

00 00

DISP

MODE

● Pressing the Illumination key views the F3-RETICLE, F4-LCD and F5-ILLU.

● Illumination brightness of the LCD screen and telescope reticle may be

adjusted as necessary at any time.

● Illumination brightness may be adjusted to any one of 10 levels.

4-4 Adjusting Reticle Illumination

Press [F3] while holding down the Illumination key to access the screen for

adjusting reticle illumination. The procedure to adjust the reticle illumination is the

same way as 4-3.

● Pressing the Illumination key views the F3-RETICLE, F4-LCD and F5-ILLU.

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PENTAX R-300 (p20-52) 10/30/02 11:08 AM Page 36

5 ANGLE MEASUREMENT

5-1 Measuring an Angle

Aim at the first target, then press [F3] [0 SET]

twice in succession to reset the horizontal

angle to 0.

MODE A

H. angle

H. dst.

15°C

0° 00' 00"

V. dst.

MEAS TARGET 0 SET

DISP

MODE

Aim at the second target, then read the

horizontal angle.

MODE A

H. angle

H^{. dst.}

15°C

60° 30' 20"

V. dst.

MEAS TARGET 0 SET

DISP

MODE

Pressing [F4] [DISP] displays the vertical

angle.

MODE A

H. angle

V^{. angle}

S^{. dst.}

15°C

60° 30' 20"

87° 05' 40"

MEAS TARGET 0 SET

DISP

MODE

● The [0 SET] key cannot reset the vertical angle to 0.

● Pressing the [DISP] key cycles through the sets of display items:

“H.angle/H.dst./V. dst.”, “H angle/V.angle/S.dst.”, and “H.angle/V.

angle/H.dst./S.dst./V.dst.”.

● Even though you turn the power off during a survey, the horizontal angle

displayed last time is saved, so that it is restored when the power is turned on

next time.

● When the restored horizontal angle is not necessary, reset it to 0.

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PENTAX R-300 (p20-52) 10/30/02 11:08 AM Page 37

5 ANGLE MEASUREMENT

5-2 Resetting the Horizontal Angle to 0

Pressing [F3] [0 SET] twice in succession

resets the horizontal angle to 0° 0' 0".

MODE A

H. angle

H^{. dst.}

15°C

0° 00' 00"

V. dst.

MEAS TARGET 0 SET

DISP

MODE

● The [F3] [0 SET] cannot reset the vertical angle to 0.

● Pressing the [F3] [0 SET] accidentally during measurement does not reset the

horizontal angle to 0 unless you press it again. Once the buzzer stops

sounding, you can go to the next step.

● You can reset the horizontal angle to 0 any time except when it has been

held.

5-3 Holding the Horizontal Angle

To hold the horizontal angle currently being

displayed, press [F3] [HOLD] twice in

succession.

The horizontal angle value is displayed in

reverse video when being held.

MODE B

15°C

H. angle 130° 45' 20"

H^{. dst.}

V. dst.

S. FUNC ANG SET HOLD CORR MODE

● lf you want to hold the horizontal angle when you are in mode A, press [F5]

[MODE] first to switch to mode B, then press [F3] [HOLD].

● The [F3] [HOLD] cannot hold the vertical angle or distance.

● To release the horizontal angle from being held, press [F3] [HOLD] once.

● Pressing [F3] [HOLD] accidentally during measurement does not hold the

horizontal angle unless you press it again. Once the buzzer stops sounding

you can go to the next step.

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PENTAX R-300 (p20-52) 10/30/02 11:08 AM Page 38

5 ANGLE MEASUREMENT

5-4 Inputting an Arbitrary Horizontal Angle

In case of Horizontal angle 123° 45' 20" input

Press [F5] [MODE] to enter mode B.

MODE B

H. angle

H^{. dst.}

15°C

92° 30' 20"

V. dst.

S. FUNC ANG SET HOLD CORR MODE

Press [F2] [ANG SET] to display the angle

setting screen, then press [F4] [h] to move

the cursor to “2. H. ANGLE INPUT”.

ANGLE SET

1.ANGLE / %GRADE : ANGLE

2.H. ANGLE INPUT : 092° 30' 20"

3.R/L REVERSE : RIGHT

SELECT

ANGLE SET

1.ANGLE / %GRADE : ANGLE

2.H. ANGLE INPUT : 092° 30' 20"

3.R/L REVERSE : RIGHT

SELECT

Press [F5] [SELECT] to open the horizontal

angle input window.

[F5] [CLEAR] is used to clear the values.

ANGLE SET

1.ANGLE / %GRADE : ANGLE

2.H. ANGLE INPUT : 092° 30' 20"

3.R/L REVERSE : RIGHT

092° 30' 20"

CLEAR

ANGLE SET

P-30

1.ANGLE / %GRADE : ANGLE

2.H. ANGLE INPUT : 000° 00' 00"

3.R/L REVERSE : RIGHT.

00° 00' 00"

CLEAR

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PENTAX R-300 (p20-52) 10/30/02 11:08 AM Page 39

5 ANGLE MEASUREMENT

Press the numeric key as 123.4520.

ANGLE SET

1.ANGLE / %GRADE : ANGLE

2.H. ANGLE INPUT : 123° 45' 20"

3.R/L REVERSE : RIGHT

123° 45' 20"

CLEAR

Press the [ENT] key to accept the horizontal

angle set to 123° 45' 20" and change the

screen to mode A.

MODE A

15°C

H. angle 123° 45' 20"

H. dst.

V. dst.

MEAS TARGET 0 SET

DISP

MODE

● The former data is called by pressing the [CLEAR] key again.

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PENTAX R-300 (p20-52) 10/30/02 11:08 AM Page 40

5 ANGLE MEASUREMENT

5-5 Displaying the % Slope of the Vertical Angle

Press [F5] [MODE] to enter mode B.

MODE B

H. angle

H^{. dst.}

15°C

92° 30' 20"

V. dst.

S. FUNC ANG SET HOLD CORR MODE

Press [F2] [ANG SET] to display the Angle

setting screen.

ANGLE SET

1.ANGLE / %GRADE : ANGLE

2.H. ANGLE INPUT : 092° 30' 20"

3.R/L REVERSE : RIGHT

SELECT

Press the [F5] [SELECT] to change the

screen to display the slope % of Vertical

angle.

MODE A

H. angle

H^{. dst.}

15°C

92° 30' 20"

V. dst.

MEAS TARGET 0 SET

DISP

MODE

Press [F4] [DISP] to display the slope value in

MODE A

H. angle

%. grade

S. dst.

15°C

92° 30' 20"

-1.84%

MEAS TARGET 0 SET

DISP

MODE

● The 0% represents the horizontal 0, and +100% and -100% represent 45° up

and down slopes respectively.

● To return the screen from the slope (%) display to the 360° scale, also take

above same steps by entering mode B.

● If the slope (%) exceeds [+/-]1000%, “Out of grade range” is displayed,

indicating that the current vertical angle cannot be measured.

● When the telescope returns to a slope within slope [+/-] 1000%, the slope (%)

display returns automatically from the “Out of grade range” message to the

numeric value.

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PENTAX R-300 (p20-52) 10/30/02 11:08 AM Page 41

5 ANGLE MEASUREMENT

5-6 Changing the Horizontal Angle from Clockwise

to Counterclockwise

Press [F5] [MODE] to enter mode B.

MODE B

H. angle

H. dst.

15°C

92° 30' 20"

V. dst.

S. FUNC ANG SET HOLD CORR MODE

Press [F2] [ANG SET] to display the Angle

setting screen.

ANGLE SET

1.ANGLE / %GRADE : ANGLE

2.H. ANGLE INPUT : 092° 30' 20"

3.R/L REVERSE : RIGHT

SELECT

Press [F4] [h] to move the cursor to “3. R/L

ANGLE SET

REVERSE”.

1.ANGLE / %GRADE : ANGLE

2.H. ANGLE INPUT : 092° 30' 20"

3.R/L REVERSE : RIGHT

SELECT

Press [F5] [SELECT] to add a minus sign (-)

to the horizontal angle value as a

counterclockwise angle.

MODE A

15°C

H. angle -267° 29' 40"

H^{. dst.}

V. dst.

MEAS TARGET 0 SET

DISP

MODE

● To return the horizontal angle from counterclockwise to clockwise, also take

the above same procedures, press [F5] [SELECT] to select the clockwise

angle.

● When the counterclockwise horizontal angle is selected, the order of aiming at

the targets becomes the reverse (the right one first, then the left one) of the

order for the clockwise angle.

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PENTAX R-300 (p20-52) 10/30/02 11:08 AM Page 42

6 DISTANCE MEASUREMENT

6-1 Target Setting

The target mode and its Constant of current setting are shown at the left of the

battery mark. For example in case of each Constant 0,

Reflector sheet; S 0, Reflectorless(Non-Prism); N 0, Prism; P 0

Pressing [F2][TARGET] changes the target

mode.

MODE A

15°C

H. angle_TARG9_ET2_C°_HA3_N0_G'_ED20"

H. dst.

V. dst.

(CONST.: 0mm)

SHEET

( ( ( ) ) )

MEAS TARGET 0 SET

DISP

MODE

● The target mode is changed sequentially as follows.

Reflector sheet - Prism - Reflectorless (reflectorless models),Reflector sheet -

Prism (standerd models).

● The selected target mode is stored in the memory even if the power is turned

off. So, next time you can use the same mode after turning on.

● The target Constant differs according to the selected target mode.

So, confirm the target mode and its Constant shown at the top screen after

changing the target.

1. (Distance measurement by Reflectorless (Non-Prism) mode)

● The measurement range is determined by the white side of the Kodak Gray

Card facing the instrument and by its surrounding brightness.

There is a possibility that the range may vary when the target does not satisfy

the conditions above at survey work.

● Pay attention to the following in case of distance measurement by Reflectorless.

In case of resulting in low accuracy, perform the distance measurement by

Reflector sheet or Prism.

● The Reflectorless “Long Range mode” can be accessed by the 007 CODE

number 521 [REF.LESS RANGE]. The measurement range of this mode is

150m and the Laser class is IIIa. This mode can be performed by selecting

the “LONG” at 1.REF.LESS RANGE.

● The CODE number 521 [REF.LESS RANGE] shows 1.REF.LESS RANGE

(NORMAL/LONG) ,2.LONG RANGE MES(ON/OFF).and 3.LONG RANGE

SETUP(EACH TIME/PERMANENT).

● The WARNING (Laser Power) screen is displayed when Range LONG and

Message ON are selected, and then F1-MEAS key is pressed. F1-MEAS, F3-

NORMAL and F5-LONG are viewed.

● Pressing [MEAS] one time selects “Second MEAS setting” and twice selects

“QUIT”. And then, Normal or Long measurement is selected by pressing F3 or

F5.

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PENTAX R-300 (p20-52) 10/30/02 11:08 AM Page 43

6 DISTANCE MEASUREMENT

q There is a possibility that correct distance measurement may be impossible by

dispersion or reduction of laser beam when the laser beam comes into the

target from diagonal angle.

w There is a possibility that the instrument cannot calculate correctly when

receiving reflected laser beam from forth and back directions in case of

measuring the target on the road.

e There is a possibility that synthesized values are calculated and the distance

may become longer or shorter than the actual one when the operator

measures the target of slope or sphere or rugged shape.

r There is a possibility that the instrument cannot calculate correctly collecting

the reflected laser beam from a man or a car that comes and goes in front of

the target.

2. Distance measurement by Reflector sheet mode

Position the Reflector sheet whose reflecting surface faces the aiming line to be

approx. right angle when the distance is measured by it. If it is positioned not to

be approx. right angle, there is a possibility that correct distance measurement

may be impossible by dispersion or reduction of laser beam.

3. Applied measurement range by Each target mode

● (Reflectorless (Non-Prism) mode):

It can measure the distance by Reflector sheet and Prism, but the measurable

distance is less than 200m.

● Reflector sheet mode:

It can measure the distance by Prism mode, but the measurable distance is

less than 1000m.

● Prism mode:

It can measure by Reflector sheet as well.

● Reflector sheet mode and Prism mode:

It is sometimes possible to measure without reflector sheet or prism under

special conditions like in the close distance, targeting on a wall surface.

However, there is a possibility including some errors in this case, so be sure

to select the Reflectorless mode.

● The target Constant should be correctly selected and confirmed in case that

the Reflector sheet is used at the Prism mode and the Prism is used at the

Reflector sheet mode.

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PENTAX R-300 (p20-52) 10/30/02 11:08 AM Page 44

6 DISTANCE MEASUREMENT

6-2

Distance Measurement

The R-300 series has two distance measurement modes of primary MEAS and

second MEAS. Pressing the [F1][MEAS] one time goes to MEAS and twice goes

to second MEAS.

You can freely select and allocate your desired measurement mode in primary

MEAS and second MEAS by the Initial Setting 2. The “MEASURE SHOT” is set

at primary MEAS and “TRACK CONT” is set at second MEAS as a Factory

default setting.

● MEASURE SHOT means the Distance measurement by the Shot mode.

● MEASURE CONT means the Distance measurement by the Continuous

mode.

● TRACK SHOT means the Fast distance measurement by the Shot mode.

● TRACK CONT means the Fast distance measurement by the Continuous

mode.

Confirm the target Constant before beginning the distance measurement.

Example: “MEASURE SHOT” at primary MEAS (Factory default setting)

Collimate the telescope at a Target and press

the [F1] [MEAS] once to start measuring

the distance.

Once distance measurement has been

started, the distance measurement mark

remains displayed.

MODE A

15°C

●

H. angle

H^{. dst.}

V. dst. SHOT

MEAS TARGET 0 SET

92° 30' 20"

( ( ( ) ) )

DISP

MODE

Upon reception of a reflected light from the

Target, the instrument beeps and displays the

mark to start the Shot measurement automatically.

●

● If the instrument is in mode B, press the [F5][MODE] to switch to mode A and

press [F1] [MEAS].

● Pressing the [F1][MEAS] after collimating the telescope at the prism starts

Shot distance measurement with the “MEAS” text blinking. Distance

measurement is completed and the “MEAS” text stops blinking the moment

the distance measured by Shot measurement is displayed. During Continuous

measurement, the “MEAS” text keeps on blinking. Pressing the [F1][MEAS]

again terminates both distance measurement and blinking the “MEAS” text.

● Pressing [F4] [DISP] cycles through the sets of display items:

“H.angle/H.dst./V.dst.”, “H.angle/V.angle/S.dst.”, and

“H.angle/V.angle/H.dst./S.dst./V.dst.”

● Pressing the [ESC] or [F2][TARGET] or [F5][MODE] during distance

measurement stops it.

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PENTAX R-300 (p20-52) 10/30/02 11:08 AM Page 45

6 DISTANCE MEASUREMENT

● If the shot count for distance measurement has been set to 2 or more in

“Initial Setting 2", the distance is measured for the specified number of times

to display the averaged value.

● If the Automatic Distance measurement : [AUTO MEAS] in “Initial Setting 2”

has been set to “MEAS” the first measurement is started only by aiming at

the Target. Press [F1] [MEAS] for each measurement after the first one.

● If the Automatic Distance Signal : [MEAS SIGNAL] in “Initial Setting 2” has

been set to VALUE, a two-digit number representing the AIM value appears

as soon as measurement starts (The AIM value varies depending on the

distance and atmospheric conditions.)

● The minimum distance unit : [MEAN. MIN DISP] COARSE or FINE can be

selected by the initial setting 2.

Example: “TRACK CONT” at second MEAS (Factory default setting)

Collimate the telescope at a Target and press

[F1] [MEAS] twice in succession to start

measuring the distance, Upon reception of a

reflected light from the Target, the instrument

MODE A

15°C

●

H. angle

H^{. dst.}

92° 30' 20"

V. dst. CONT

MEAS TARGET 0 SET

( ( ( ) ) )

beeps and displays the mark to start the

TRACK distance measurement.

●

DISP

MODE

● If the instrument is in mode B, press [F5] [MODE] to switch to mode A and

press [F1] [ MEAS ] twice.

● Pressing [F1] [MEAS] twice after collimating the telescope at the Target starts

Continuous distance measurement at fast speed with the “MEAS” text

blinking. It remains blinking during the measurement.

If you press the [F1] [ MEAS ] again, Distance measurement is completed and

the “MEAS” text stops blinking.

● Pressing [F4] [DISP] cycles through the sets of display items:

“H.angle/H.dst./V.dst.”, “H.angle/V.angle/S.dst.”, and

“H.angle/V.angle/H.dst./S.dst./V.dst.”

● Pressing the [ESC] or [F2] [TARGET] or [F5] [MODE] during fast distance

measurement stops it.

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PENTAX R-300 (p20-52) 10/30/02 11:08 AM Page 46

7 CORRECTION MODE

7-1 Changing the Target Constant

Changing the Target Constant can be performed only when the Reflector sheet

and Prism Constant settings are “INPUT” in Initial Setting 1.

Example: Prism Constant - 25mm setting

Press [F4] [CORR] in mode B.

CORRECTION

1.PRISM CONST

2.SHEET CONST

3.TEMP

4.PRESS

5.ppm

-30mm

0mm

15°C

1013hPa

0ppm

(If the instrument is in mode A, press [F5]

[MODE] to enter mode B.)

(SHEET CONST : Reflector sheet constant)

SELECT

Press the [F5] [SELECT] to enable the Prism

Constant to be changed.

CORRECTION

1.PRISM CONST

2.SHEET CONST

3.TEMP

4.PRESS

5.ppm

-30mm

0mm

15°C

1013hPa

0ppm

CLEAR

Clear the exiting values by pressing [CLEAR] key.

Input 25 by pressing the numeric keys.

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PENTAX R-300 (p20-52) 10/30/02 11:08 AM Page 47

7 CORRECTION MODE

Press the [ENT] key to accept the Prism

Constant to -25 mm.

CORRECTION

1.PRISM CONST

2.SHEET CONST

3.TEMP

4.PRESS

5.ppm

-25mm

0mm

15°C

1013hPa

0ppm

SELECT

Pressing the [ENT] key returns the instrument

to mode A.

MODE A

H. angle

H. dst.

15°C

92° 30' 20"

V. dst.

MEAS TARGET 0 SET

DISP

MODE

● To set the Reflector sheet constant to “0” select “0” for “Prism Constant” in

“Initial Setting 1”.

● To set the Prism constant to “0” or “- 30” select “0” or “- 30” for “Prism

Constant” in “Initial Setting 1”.

● When the “Reflector sheet Constant” has been set to “0” in Initial Setting 1

and “Prism Constant” has been set to “0” or “- 30", “ ” is displayed to the left

of “0” or “- 30” on the correction menu screen. When “ ” is on the screen, the

Constant cannot be changed (by entering a numeric key).

● Once set, the Reflector sheet Constant and Prism Constant remains on the

measurement screen as “S 0” or “P 0”.

● The factory initial of Reflector sheet Constant and Prism Constant are 0.

● Once set, each Constant remains in memory even after the power is turned

oft.

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PENTAX R-300 (p20-52) 10/30/02 11:08 AM Page 48

7 CORRECTION MODE

7-2 Changing the Temperature

The temperature setting can be changed only when “Atmospheric Correction” has

been set to “ATM INPUT” in “Initial Setting 1”.

Example: Setting the temperature to +22°C

Press [F4] [CORR] in mode B.

(If the instrument is in mode A, press [F5]

[MODE] to enter mode B.)

CORRECTION

1.PRISM CONST

2.SHEET CONST

3.TEMP

4.PRESS

5.ppm

0mm

+15°C

1013hPa

0ppm

SELECT

Press [F4] [h] to move the cursor

CORRECTION

to “3.TEMP” and press the [F5] [SELECT] to

enable the temperature to be changed.

1.PRISM CONST

2.SHEET CONST

3.TEMP

4.PRESS

5.ppm

0mm

+15°C

1013hPa

0ppm

CLEAR

Clear the exiting values by pressing [CLEAR]

key.

Input 22 by pressing the numeric keys.

CORRECTION

1.PRISM CONST

2.SHEET CONST

3.TEMP

4.PRESS

5.ppm

0mm

+22°C

1013hPa

0ppm

CLEAR

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PENTAX R-300 (p20-52) 10/30/02 11:08 AM Page 49

7 CORRECTION MODE

Press the [ENT] key to accept the

CORRECTION

Temperature to +22°C.

1.PRISM CONST

2.SHEET CONST

3.TEMP

0mm

+22°C

4.PRESS

1013hPa1013hPa

SELECT

Pressing the [ENT] key returns the instrument

to mode A.

MODE A

H. angle

H. dst.

15°C

92° 30' 20"

V. dst.

MEAS TARGET 0 SET

DISP

MODE

● The valid range of Temperatue input is from -30°C to +60°C.

● When “Atmospheric Correction” in “Initial Setting 1” has been set to “1 . AUTO”

or “4. NIL”, “ ” is displayed to the left of the temperature value on the

correction menu screen. When “ ” is on the screen, the temperature cannot

be changed. If “Atmospheric Correction” in “Initial Setting 1” has been set to

“3. ppm INPUT”, no temperature is displayed on the correction menu screen.

● Once set, the temperature is displayed at the center of the top of the

measurement screen.

● The factory initial of temperature is “1. AUTO”.

● Once set, the temperature remains in memory even after the power is turned

off.

● Temperature correction is based on 15°C.

If this instrument is used without correcting the temperature, a distance error

per 100 m is about -0.1mm per +1°C as a temperature difference from 15°C.

A distance error per 100 m is about 0.1 mm per -1°C as a temperature

difference from 15°C. (For more accurate values, See page 82.)

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PENTAX R-300 (p20-52) 10/30/02 11:08 AM Page 50

7 CORRECTION MODE

7-3 Changing the Atmospheric Pressure

The atmospheric pressure setting can be changed only when “Atmospheric

Correction” has been set to “ATM INPUT” in “Initial Setting 1”.

Example: Setting the pressure to 900 hPa

Press [F4] [CORR] in mode B.

(If the instrument is in mode A, press [F5]

[MODE] to enter mode B.)

CORRECTION

1.PRISM CONST

2.SHEET CONST

3.TEMP

0mm

+15°C

1013hPa

0ppm

4.PRESS

5.ppm

SELECT

Press [F4] [h] to move the cursor to

“4.PRESS” and press the [F5] [SELECT] to

enable the temperature to be changed.

CORRECTION

1.PRISM CONST

2.SHEET CONST

3.TEMP

4.PRESS

5.ppm

0mm

+15°C

1013hPa

0ppm

SELECT

Clear the exiting values by pressing [CLEAR]

key.

Input 900 by pressing the numeric keys.

CORRECTION

1.PRISM CONST

2.SHEET CONST

3.TEMP

4.PRESS

5.ppm

0mm

+15°C

0900hPa

0ppm

CLEAR

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PENTAX R-300 (p20-52) 10/30/02 11:08 AM Page 51

7 CORRECTION MODE

Press the [ENT] key to accept the PRESS to

900 hPa.

CORRECTION

1.PRISM CONST

2.SHEET CONST

3.TEMP

4.PRESS

5.ppm

0mm

+15°C

0900hPa

0ppm

SELECT

Pressing the [ENT] key returns the instrument

to mode A.

MODE A

H. angle

H. dst.

15°C

92° 30' 20"

V. dst.

MEAS TARGET 0 SET

DISP

MODE

● The valid range of Pressure input is from 600 to 1120 hPa. (420 - 840 mmHg)

● When “Atmospheric Correction” in “Initial Setting 1” has been set to “1. AUTO”

or “4. NIL”, “ ” is displayed to the left of the pressure value on the correction

menu screen. When “ ” is on the screen, the pressure cannot be changed.

If “Atmospheric Correction” in “Initial Setting 1” has been set to “3.ppm

INPUT”, no pressure is displayed on the correction menu screen.

● Once set, the pressure is displayed at the center of the top of the

measurement screen.

● The factory initial of pressure is “1. AUTO”.

● Once set, the pressure remains in memory even after the power is turned off.

● Pressure correction is based on 1013 hectopascals (hPa).

● If this instrument is used without correcting the pressure, a distance error per

100 m is about - 0.3 mm per -10 hPa as a pressure difference from 1013 hPa.

(For more accurate values, see page 82.)

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PENTAX R-300 (p20-52) 10/30/02 11:09 AM Page 52

7 CORRECTION MODE

7-4 Changing the ppm Value

The ppm value can be changed only when “Atmospheric Correction” has been

set to “ppm INPUT” in “Initial Setting 1”. “TEMP” and “PRESS” are not displayed.

Example: Setting the ppm value to 31 ppm

Press [F4] [CORR] in mode B.

CORRECTION

(If the instrument is in mode A, press [F5]

[MODE] to enter mode B.)

1.PRISM CONST

2.SHEET CONST

3.TEMP

0mm

4.PRESS

0mm

5.ppm

+12ppm

SELECT

Press [F4] [h] to move the cursor to “3. ppm”

and press the [F5] [SELECT] to enable the

temperature to be changed.

CORRECTION

1.PRISM CONST

2.SHEET CONST

3.TEMP

4.PRESS

5.ppm

0mm

Press the [CLEAR] key.

+000ppm

CLEAR

Input 31 by pressing numeric keys.

CORRECTION

1.PRISM CONST

2.SHEET CONST

3.TEMP

0mm

4.PRESS

0mm

5.ppm

+031ppm

CLEAR

Pressing the [ESC] key returns the instrument

to mode A.

MODE A

H. angle

H^{. dst.}

15°C

92° 30' 20"

V. dst.

MEAS TARGET 0 SET

DISP

MODE

● The valid range of ppm values is from -199 to +199.

● Once set, the ppm value is displayed at the center of the top of the

measurement screen.

● The factory initial of ppm value is “1. AUTO”.

● Once set, the ppm value remains in memory even after the power is turned

off.

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PENTAX R-300 (p53-64) 10/30/02 11:13 AM Page 53

8 INITIAL SETTING

8-1 Overview

For the R-300 series, you can select and save the desired setting for a variety of

prescribed instrument conditions, called Initial Setting.

The Initial Setting is saved in four modes, “Initial Setting 1”, “Initial Setting 2”,

“Initial Setting 4”, and “Initial Setting 5”, in which you can select and save the

instrument conditions described below.

The factory default for each of these conditions is marked by

To change Initial Setting, follow the operating procedures for entering each Initial

Setting mode on Page 53 and the operating procedures for changing an Initial

Setting on Page 55.

8-2 Entering the Mode for Initial Setting 1

Press the [POWER] key while holding [F1]

SET 1

key down to access the screen for Initial

Setting 1.

1.ATM CORR

2.PRISM CONST

3.SHEET CONST

4.CRV/REF CORR

5.COMP AXIS

AUTO

0mm

0.14

NIL

SELECT

Press [F3] [g] or [F4] [h] to position the

SET 1

1.ATM CORR

2.PRISM CONST

3.SHEET CONST

4.CRV/REF CORR

5.COMP AXIS

AUTO

0mm

0.14

cursor at the item of interest.

NIL

SELECT

8-3 Entering the Mode for Initial Setting 2

Press the [POWER] key while holding [F2]

SET 2

key down to access the screen for Initial

setting 2.

1.MEAS MIN DISP : COARSE

2.SHOT COUNT

3.SHOT INPUT

4.LD PLUM

: 1 TIME

: 01 TIMES

: ON

5.TILT DISP

: ON

SELECT

G Select the item of interest in the same way as in the mode for Initial setting 1.

G Pressing [F2] [ ] scrolls the screen down five items; pressing [F1] [ ] scrolls

it up five items.

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PENTAX R-300 (p53-64) 10/30/02 11:13 AM Page 54

8 INITIAL SETTING

8-4 Entering the Mode for Initial Setting 4

Press the [POWER] key while holding [F4]

key down to access the screen for Initial

setting 4.

SET 4

1.TEMP UNIT

2.PRESS UNIT

3.DIST. UNIT

4.ANG. UNIT

°C

hPa

DEG

SELECT

G Select the item of interest in the same way as in the mode for Initial setting 1.

8-5 Entering the Mode for Initial Setting 5

Press the [POWER] key while holding [F5]

SET 5

key down to access the screen for Initial

setting 5.

1.BAUD RATE

2.DATA LENGTH :

3.PARITY BITS

4.STOP BITS

5.SIGNAL CONTROL

1200

NIL

SELECT

G Select the item of interest in the same way as in the mode for Initial setting 1.

G Pressing [F2] [ ] scrolls the screen down five items; pressing [F1] [ ] scrolls

it up five items.

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8 INITIAL SETTING

8-6 Example of Changing an Initial Setting Content

(Selection of Atmospheric Correction)

This section describes the operating procedures for selecting “1.ATM CORR” in

Initial Setting 1 as an example of changing an Initial Setting content. Use this

example as a reference when changing other items because it is also applicable

to the operating procedures for changing them.

Access the screen for Initial Setting 1 by

SET 1

taking procedures “Entering the Mode for

Initial Setting 1” on page 50.

1.ATM CORR

2.PRISM CONST

3.SHEET CONST

4.CRV/REF CORR

5.COMP AXIS

AUTO

0mm

0.14

NIL

SELECT

Press [F5] [SELECT] to open the screen for

selecting the atmospheric correction.

Press [F3] [g] or [F4] [h] to position the

cursor at the desired item, then press [ENT]

key to select that item.

Pressing the [ENT] key settles the change of

selected item. Pressing the [ESC] key

invalidates the change of selected item.

Pressing again the [ESC] key or [ENT] key

quits the initial setting screen and usual start

screen appears.

PENTAX R-300 (p53-64) 10/30/02 11:13 AM Page 56

8 INITIAL SETTING

8-7 Initial Setting 1

1. Selection of Atmospheric Correction : [ATM CORR]

1. AUTO

Select whether Atmospheric Correction is to be

performed by using the automatic measurement

correction function with a atmospheric sensor, by

entering the atmospheric temperature and pressure

measured with a thermometer and barometer, by

entering ppm value, or by fixing the ppm value to 0 (NIL)

not to perform Atmospheric Correction.

2. ATM INPUT

3. ppm INPUT

4. NIL

2. Selection of Prism Constant : [PRISM CONST]

Select whether the Prism Constant to be input is set to 0

mm, - 30mm or to an arbitrary value to be entered from

the keyboard.

1. -30mm

2. 0mm

3. INPUT

3. Selection of Reflector sheet Constant : [SHEET CONST]

Select whether the target constant to be input is set to 0

mm, or to an arbitrary value to be entered from the

keyboard.

1. 0mm

2. INPUT

4. Selection for Refraction & Curvature Corrections :

[CRV/REF CORR]

1. 0.14

2. 0.2

3. NIL

Select whether the correction factor to be input for both

differences (Refraction, Curvature) is set to 0.14, 0.2, or

none (NIL). Selecting “3. NIL” results in no correction of

both values.

5. Selection of Tilt Compensation : [COMP AXIS]

Select whether Tilt Compensation is to be single-axis

compensation, dual-axis compensation, or disabled

(NIL).

1. 3 AXIS

2. 2 AXIS

3. 1 AXIS

4. NIL

1. 2 AXES

2. AXIS

3. NIL

G The factory default for each instrumet condition is

marked by

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PENTAX R-300 (p53-64) 10/30/02 11:13 AM Page 57

8 INITIAL SETTING

8-8 Initial Setting 2

1. Selection of Minimum Distance measurement unit :

1. COARSE

2. FINE

[MEAS. MIN DISP]

COARSE or FINE:

2. Selection of the Shot count : [SHOT COUNT]

Select whether the shot count for Shot distance

measurement is to be 1,3, 5, or an arbitrary count to be

entered.

1. 1 TIME

2. 3 TIMES

3. 5 TIMES

4. INPUT

3. Setting the Shot input : [SHOT INPUT]

0 3 TIMES

Set the shot number for Shot distance measurement.

G The valid range of values for the shot number is from 1 to 99.

G This setting is enabled only when the shot number

(Above 2.) has been set to “4. INPUT”.

4. Selection of Laser plummet : [LD PLUM.]

1. OFF

Laser plumb ON/OFF is selected.

2. ON

5. Selection of Tilting angle display : [TILT DISP.]

1. OFF

2. ON

X and Y tilting values are displayed.

6. Selection for Minimum tilt display : [TILT DISP. UNIT]

1. COARSE

2. FINE

COARSE or FINE:

7. Selection of Reflectorless range : [RANGE]

1. NORMAL

2. LONG

If you need the Normal or Long range.

8. Selection of Long range message : [MESSAGE]

1. ON

If you need the long range message.

2. OFF

9. Selection of Long range setup : [SET UP]

If the above No.7 selection is required each time or

permanent.

1. EACH TIME

2. PERMANENT

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PENTAX R-300 (p53-64) 10/30/02 11:13 AM Page 58

8 INITIAL SETTING

10.Selection of primary MEAS setting : [PRIM. MEAS KEY]

1. MEAS SHOT

2. MEAS CONT

3. TRACK SHOT

4. TRACK CONT

Select whether the primary distance measurement is

MEAS SHOT or MEAS CONT or TRACK SHOT or

TRACK CONT.

11.Selection of second MEAS setting : [SEC. MEAS KEY]

Select whether the second distance measurement is

TRACK CONT or TRACK SHOT or MEAS CONT or

MEAS SHOT.

1. TRACK CONT

2. TRACK SHOT

3. MEAS CONT

4. MEAS SHOT

12.Selection of Minimum angle display : [MIN UNIT ANG]

Select whether to set the minimum angle display mode

to “COARSE (5 seconds)” or “FINE (1 second)”.

1. COARSE

2. FINE

13.Selection of Vertical angle style : [V. ANG. STYLE]

Select whether the 0 point for vertical angle is set to be

“Z.0”, “H.0” or “COMPAS”.

1. Z. 0

2. H. 0

3. COMPAS

14.Selection for Automatic power-off function :

[AUTO OFF]

1. 10 MIN

2. 20 MIN

3. 30 MIN

4. NIL

Select the time interval (10, 20, or 30 minutes) for

activating the automatic power-off function, or select NIL,

disabling the function.

G The automatic power-off function automatically turns the power supply off

after the specified period of time (in minutes) when no operation for distance

measurement or for key entry has been performed with the angle remaining

unchanged.

15.Selection for Distance measurement automatic power-

1. 3 MIN

off function : [EDM OFF]

2. 5 MIN

3. 10 MIN

4. NIL

Select the time interval (3, 5, or 10 minutes) for activating

the distance measurement automatic power-off function,

or select NIL, disabling the function.

G The distance measurement automatic power-off function automatically power-

off distance measurement after the specified period of time when no key

operation has been performed with the measured value remaining unchanged

(over about 0.1 m) during measurement.

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PENTAX R-300 (p53-64) 10/30/02 11:13 AM Page 59

8 INITIAL SETTING

16.Selection for Automatic illumination power-off

function : [ILLU. OFF]

1. 3 MIN

2. 5 MIN

3. 10 MIN

4. NIL

Select the time interval (3, 5, or 10 minutes) for activating

the automatic illumination power-off function, or select

NIL, disabling the function.

17.Selection for Distance measurement buzzer :

[DIST. BUZ]

1. ON

2. OFF

Select whether to enable or disable the beep when the

prism receives a light during distance measurement or

during repeated distance measurement.

18.Selection for H. angle 90° buzzer : [QUAD BUZ]

Select whether to enable or disable the beep at every

90° during angle measurement.

1. OFF

2. ON

19.Selection of Distance measurement signal :

[MEAS. SIGNAL]

1. MARK

2. VALUE

Select whether to display a signal indicator or AIM value

to be displayed from when distance measurement is

started to when measured data is displayed.

20.Selection of Automatic distance measurement :

[AUTO MEAS.]

1. NIL

2. MEAS

3. TRACK

Automatic distance measurement repeats measurement

automatically when the telescope has been collimated at

the prism. Select NIL, MEAS or TRACK.

21.Selection for priority Display : [PRIORITY DISP]

Select the display order of the sets of display items

which pressing the [DISP] key cycles through. The set of

display items selected here appears first after the power

is turned on.

1. HA HD VD

2. HA VA SD

3. HA VA HD

SD VD

22.Selection of the Coordinate axis as XYZ,YXZ, NEZ or

ENZ

1. XYZ

2. YXZ

3. NEZ

4. ENZ

Select the coordinate axis as XYZ, YXZ, NEZ, ENZ.

This [COORD.AXIS] is only for the PSF software.

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PENTAX R-300 (p53-64) 10/30/02 11:13 AM Page 60

8 INITIAL SETTING

8-9 Initial Setting 4

1. Selection of Temperature unit setting : [TEMP. UNIT]

1. °C

Select °C or °F as the unit for Temperature.

2. °F

2. Selection of Pressure unit setting : [PRESS UNIT]

Select hPa (hectopascal) , mmHg, inchHg as the unit for

pressure to be input.

1. hPa

2. mmHg

3. inchHg

3. Selection of Distance unit setting : [DIST. UNIT]

Select m or ft or ft+inch as the unit for Distance.

2. ft

3. ft+inch

4. Selection of Angle unit setting : [ANG. UNIT]

1. DEG

2. DEC

3. GRD

4. M I L

Select DEG or DEC or GRD or MIL as the unit for Angle.

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PENTAX R-300 (p53-64) 10/30/02 11:13 AM Page 61

8 INITIAL SETTING

8-10 Initial Setting 5

1. Selection of Transfer rate (baud rate) : [BAUD UNIT]

1. 1200

2. 2400

3. 4800

4. 9600

Select a baud rate of 1200, 2400, 4800, or 9600.

2. Selection of Data bits : [DATA LENGTH]

Select a data length of 8 bits or 7 bits.

3. Selection of Parity : [PARITY BITS]

1. NIL

Select no (NIL) parity bit, even parity, or odd parity.

2. EVEN

3. ODD

4. Selection of Stop bit : [STOP BITS]

Select the number of stop bits to be used: 1 or 2.

5. Selection of Control signal : [SIGNAL CONTROL]

1. ON

Select whether the control signal is effective or not.

2. OFF

6. Selection of XON/XOFF : [XON/XOFF]

1. ON

Select whether to enable or disable XON/XOFF.

2. OFF

7. Selection of Through command : [THROUGH

COMMAND]

1. NIL

Select whether to disable data output without receiving

any data request command or enable the “a” to “f”

command data output.

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PENTAX R-300 (p53-64) 10/30/02 11:13 AM Page 62

9 ACCESSING THE FUNCTIONS

9-1 Accessing by Help key

You can use the [HELP] key to display specific Initial Setting (such as the Prism

Constant and Priority mode).

Press the [lLLU]+[ESC] key in mode A or B.

HELP

1.HELP

2.401 TARGET CONST

3.402 ATM CORR

4.501 TRACK MIN DISP

5.502 SHOT COUNT

AUTO

1mm

SELECT

The help menu will then be displayed. Press

[F1] [ ] [F2] [ ] or [F3] [g] [F4] [h] to

position the cursor to the desired item.

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PENTAX R-300 (p53-64) 10/30/02 11:13 AM Page 63

9 ACCESSING THE FUNCTIONS

9-2 Accessing by 007

The R-300 allows you to enter a special code of 007 with the Alphanumeric keys

to display Specific Initial Setting. (such as the Prism Constant and Priority mode)

MODE A

H. angle

H^{. dst.}

15°C

92° 30' 20"

000

V. dst.

CLEAR

Press the numeric keys [0] [0] [7] in mode A

or B. The screen will then change to the

command input screen.

MODE A

H. angle

H^{. dst.}

15°C

92° 30' 20"

501

V. dst.

CLEAR

Press the numeric keys for the desired

command number in the Command No. Table.

(For example, press [5] [0] [1] for MEAS. MIN

DISP.)

MEAS MIN DISP

H. angle

H^{. dst.}

1. COARSE

2. FINE

92° 302'0"

501

V. dst.

SELECT

Press the [ENT] key to access the MEAS. MIN

DISP.

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9 ACCESSING THE FUNCTIONS

[Instrument setting items]

007code

HELP menu list

TARGET CONST PRISM CONST

SHEET CONST

Default

Other options

0mm, INPUT

401

-30mm

0mm

INPUT

402

501

502

ATM CORR

AUTO

ATM INPUT, ppm INPUT, NIL

MEAS. MIN DISP

COARSE

1 time

01 times

0.14

FINE

SHOT COUNT

SHOT CONT

SHOT INPUT

3 times, 5 times, INPUT

(input)

503

504

505

508

509

510

511

512

514

CRV/REF CORR

MIN UNIT ANG.

V. ANG. STYLE

DIST.BUZ

0.2, NIL

COARSE

Z.0

FINE

H.0, COMPASS

OFF

QUAD BUZ

OFF

AUTO OFF

10 MIN

3 MIN

MARK

20 MIN, 30 MIN, NIL

5 MIN, 10 MIN, NIL

VALUE

EDM OFF

ILLU.OFF

MEAS.SIGNAL

PENTAX R-300 (p65-88) 10/30/02 11:11 AM Page 65

10 CHECKS AND ADJUSTMENTS

G Checks and Adjustments should be performed before and during

measurement.

G The instrument should be checked after long storage and transportation.

G The checks should be performed in the following order.

[Cautions on CHECKS AND ADJUSTMENTS]

G When adjustment is completed, be sure that adjusting screws are completely

tightened. When finishing turning adjusting screws, be sure that screws are

turned in a direction for tightening.

G Repeat check after adjustment, and check if the instrument has been adjusted

properly.

G When adjustment is completed, be sure that adjusting screws are completely

tightened. When finishing turning adjusting screws, be sure that screws are

turned in a direction for tightening.

G Repeat check after adjustment, and check if the instrument has been adjusted

properly.

10-1 Electronic vial

Checks

q Align the Electronic vial in parallel with a line

joining any two of the leveling screws. Then,

adjust the two screws to center the bubble in

the Electronic vial.

(A)

w Turn two leveling screws in an opposite

direction mutually and have the bubble of the

side of the electronic vial to the center.

e Make the bubble of the length of the electronic

vial to the center by operating the leveling

screw of one remainder.

Leveling screws

(B)

r Rotate the instrument by 180° and confirm the

position of the bubble of the electronic vial. At

this time, it is not necessary to adjust it if the

bubble of the electronic vial is in the vicinity of

the center.

Leveling screws

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PENTAX R-300 (p65-88) 10/30/02 11:11 AM Page 66

10 CHECKS AND ADJUSTMENTS

G Please check the electronic vial in a steady environment that has no vibration

or rapid temperature change.

G When the electronic vial is checked outdoors and on a tripod, avoid sunlight

influence by using a sunshade. Please wait for a while until the instrument and

tripod are at the same temperature as the surrounding air.

G When the instrument is seen at the position of “Left circle”, movement and the

inclination of the instrument become the same on the screen in the electronic

vial. Please note that the movement of the bubble becomes opposite direction

if it is seen at the position of “Right circle”.

Adjustments

It is necessary to adjust as following when the bubble is not in the vicinity of the

center in the confirmation of r.

Procedure to adjust the electronic vial:

Press the [POWER] and [LASER] key

Electronic vial adj.

simultaneously.

Following screen is viewed.

Avoid direct sunlight and viration

during adjustment Aim at a target

accurately, then press [F3]

0 SET

SELECT SELECT

Aim at a target and press [F3] key.

Following screen is viewed.

Electronic vial adj.

Turn the instrument 180˚ and

reverse the telescope.

Aim at the same target accurately,

then press [F3]

0 SET

SELECT SELECT

Turn the instrument 180˚ and reverse the

telescope.

Aim at the same target accurately, then press

[F3].

Electronic vial adj.

Successfully accomplished.

Press [ENT].

Following screen is viewed.

SELECT SELECT

SELECT

Pressing the [ENT] key completes the

adjustment.

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PENTAX R-300 (p65-88) 10/30/02 11:11 AM Page 67

10 CHECKS AND ADJUSTMENTS

10-2 Circular Vial

Checks

q Adjust by the electronic vial beforehand.

w Confirm the position of the bubble of the Circular vial.

At this time, it is not necessary to adjust if the bubble is at the center of the

circle.

Adjustments

When the bubble of the Circular vial comes off from the center according to

check procedure w, it is necessary to adjust.

Turn the bubble adjustment screw with a hex wrench (L type wrench) and put

the bubble in the center of the circle.

[Only the detaching type model]

Turn the bubble adjustment screws with the reticle adjustment pin and put the

bubble in the center of the circle.

Circular vial adj. screw

Circular vial

Circular vial adj. screw

G Tighten the screws equally after the above adjustment.

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PENTAX R-300 (p65-88) 10/30/02 11:11 AM Page 68

10 CHECKS AND ADJUSTMENTS

10-3 Vertical Reticle

Checks

q Set the instrument up the tripod and carefully level it.

w Sight the target Point A with telescope.

e Using the telescope fine adjustment screws, move Point A to the edge of the

field of view by screw (point A’).

r No adjustment is necessary if Point A moves along the vertical line of the

reticle.

Vertical line

Line of sight axis

Adjustments

q If Point A is off from the vertical line of the reticle, first remove the eyepiece

cover.

w Using the adjusting pin, loosen the four reticle adjustment screws slightly

loosening each screw by the same amount, and then rotate the reticle line

around the sight axis and align the vertical line of the sight axis with Point A’.

e Tighten the reticle adjustment screws again by the same amount, and repeat

the check to make sure the adjustment is correct.

Reticle adjusting screws

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PENTAX R-300 (p65-88) 10/30/02 11:11 AM Page 69

10 CHECKS AND ADJUSTMENTS

10-4 Perpendicularity of Line of sight to horizontal axis

Checks

q Position a target Point A at a distance 30m - 50m away from the instrument,

and sight it with the telescope.

w Loosen the telescope lock screw and turn the telescope until a point is sighted

at a distance roughly equal to that of Point A. This is Point B.

e With the telescope still reversed loosen the horizontal lock screw and rotate

the instrument around the vertical axis, and sight Point A again.

r Loosen the telescope lock screw and turn the telescope until a point is sighted

at a distance equal to that of Point B. This is Point C.

t No adjustment is necessary if Point B and C are aligned.

30 - 50m

Adjustments

q If Points B and C are not aligned, mark Point D at 1/4 the length of the BC,

from Point C in the direction of Point B.

w Using the adjustment pin, rotate the reticle adjustment screws horizontally

opposite each other (see preceding page), and move the reticle to sight Point

e Repeat the check and make sure the adjustment is correct.

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PENTAX R-300 (p65-88) 10/30/02 11:11 AM Page 70

10 CHECKS AND ADJUSTMENTS

10-5 Vertical 0 point error

Be sure to follow check procedures mentioned below after making adjustments

on reticle and perpendicularity of line of sight to horizontal axis.

Checks

q Set up the instrument and turn the power on.

w Sight the telescope at any reference target A at Normale state. Read the

vertical angle ( γ ).

e Turn the telescope and rotate the alidade. Sight the same target A again at

Back state and read the vertical angle R.

r If γ+R = 360° , no further adjustment is necessary.

Adjustments

If the deviation d (γ+ R - 360° ) is wide, contact your local dealer.

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PENTAX R-300 (p65-88) 10/30/02 11:11 AM Page 71

10 CHECKS AND ADJUSTMENTS

10-6 Laser Plummet

Checks

q Set the instrument on the tripod, and place a piece of white paper with a

cross drawn on it right under the instrument.

w Press the [LASER] key, and move the paper so that the intersecting point of

the cross comes to the center of the Laser mark.

e Rotate the instrument around the vertical axis, and observe the center mark

position against the intersecting point of the cross at each 90° rotation.

r If the Laser mark always coincides with the intersecting point, no adjustment

is necessary.

Adjustments

When a center part where a cross intersection and the laser mark look the

brightest shifts by 0.8mm or more (at the instrument height 1.5m), it is necessary

to adjust it. A repair engineer does this adjustment. Please contact the PENTAX

dealer.

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PENTAX R-300 (p65-88) 10/30/02 11:11 AM Page 72

10 CHECKS AND ADJUSTMENTS

10-7 Optical Plummet

Checks

q Set the instrument on the tripod, and place a piece of white paper with a

cross drawn on it right under the instrument.

w Look through the optical plummet, and move the paper so that the intersecting

point of the cross comes to the center of the field of view.

e Adjust the leveling screws so that the center mark of the optical plummet

coincides with the intersecting point of the cross.

r Rotate the instrument around the vertical axis. Look through the optical

plummet each 90° of rotation, and observe the center mark position against

the intersecting point of the cross.

t If the center mark always coincides with the intersecting point, no adjustment

is necessary.

Adjusting screws

Adjustments

q If the center mark does not coincide with the intersecting point, rotate the

optical plummet focusing knob cover and remove it.

w Mark the point set on the line of sight at each step of 90° on the white paper

and call them A, B, C and D.

e Join the opposed points (A,C and B,D) with a straight line, and set the

intersecting point 0.

r Turn the four optical plummet adjusting screws with a adjusting pin so that the

center mark coincides with the intersecting point 0.

t Repeat from r, and check that adjustment is correct.

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PENTAX R-300 (p65-88) 10/30/02 11:11 AM Page 73

10 CHECKS AND ADJUSTMENTS

10-8 Offset Constant

The offset constant rarely changes. It is recommended, however, that check be

done once or twice a year.

The check of the offset constant can be done on a certified base line. It can also

be obtained in a simple way as described below.

Checks

1. Locate points A, B and C at about 50m intervals on even ground.

2. Set up the instrument at point A, and measure the distances between AB and

AC.

3. Set up the instrument at point B, and measure the distance BC.

4. Obtain the offset constant (K):

K=AC - (AB+BC)

Adjustments

G Contact your local dealer for adjustment of the off-set constant when the K is

not nearly 0.

Instrument

Prism

Instrument

Prism

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PENTAX R-300 (p65-88) 10/30/02 11:11 AM Page 74

10 CHECKS AND ADJUSTMENTS

10-9 Beam axis and Line of sight

Be sure to check that the beam axis and line of sight are aligned when the

adjustments on reticle and perpendicularity of line of sight to horizontal axis are

made.

Checks

q Set the prism at a distance greater than 50 m.

w Accurately sight the center of the prism through the telescope.

e Turn the power on and press (MEAS) to measure.

r No adjustment is necessary if beam receiving buzzer sounds immediately and

measurement value is displayed in a few seconds.

Adjustments

G If instrument function is not as described in r, contact your local dealer.

G This check should be done under good weather conditions.

10-10 The EDM beam axis

The distance measurement (EDM) beam axis is adjusted to be aligned to the

sighting axis of the telescope, but it can be changed a little in case of rapid

temperature change, shock or aging. Check your instrument by following

procedures.

Checks

q Install the instrument on the tripod and level it at the distance of approx. 50 m

from the wall.

w Displace the target plate attached to the end of this manual. Place the target

plate adjusting its center to the center of telescope cross line and to be about

horizontal to the instrument.

e Turn the power on, and confirm the [TARGET] is set to the Reflecting sheet

mode (“S” will be indicated at the top of display, left side of the battery

remains sign when it is that.) When it is not, press [F2] [TARGET] and set to

Reflecting sheet mode (Reference p38 6.1 Target Setting).

r Press [F1] [MEAS], then the laser spot appears on the target plate. If the

“Center” of the laser spot is within the internal circle (10mm) of the target

plate at this moment, the adjustment is unnecessary.

G The laser spot disappears in approx. 20 seconds after pressing [F1][MEAS].

Press [MEAS] again, if it is necessary.

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PENTAX R-300 (p65-88) 10/30/02 11:11 AM Page 75

10 CHECKS AND ADJUSTMENTS

Target Plate

approx. 50 m

10mm

Internal circle

20mm

Laser spot “Center”

[Example: Adjustment is necessary]

[Example: Adjustment is unnecessary]

Adjustments

At the procedure 4. above, if the “Center” of laser spot is not within the internal

circle (10mm) of the target plate, the adjustment is necessary. Please contact

your PENTAX dealer.

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PENTAX R-300 (p65-88) 10/30/02 11:11 AM Page 76

11 SPECIFICATIONS

Reflectorless items are applicable to “N” models only.

R-322 (N)

R-323 (N)

R-325 (N)

R-335 (N)

R-315 (N)

R-326

Telescope

Image

Erect

Optical aperture

EDM aperture

Reticle illumination

Auto&Power focus

Method

45mm

Intensity settings: 10 steps

Yes

---

Phase differential

By main battery

Visible laser

30 x

Power

Pointer

Magnification

Resolving power

Field of view

Minimum focus

Auto-Focus

3”

2.6% (1° 30’)

1.0m

Auto-focus / Power Focus / Manual

Manual

Distance measurement

Laser Class

Visible Laser: Class II (2) / Class IIIa (3R) -Long range mode in Reflectorless

Measurement range (Good condition)

Reflectorless

1.5m -Normal range mode:

70m (90m), / Long range mode 150m(180m)

—

Reflector sheet

Mini prism

1.5m - 600m (800m)

1.5m - 1100m (1600m)

1.5m - 3400m (4500m)

200m - 4500m (5600m)

1.5m - 3000m (4000m)

1.5m - 2000m

(2800m)

200m - 4000m (5000m)

200m - 2800m

(3500m)

Accuracy

Prism

±(2+2ppm ±(3+2ppm

±(5 + 3ppm x D)mm

x D)mm

Reflector Sheet

Reflectorless

±(5 + 2ppm x D)mm

—

At Auto-Atm.

Correction

Prism, Ref.sheet: ±(3 +10ppm x D)mm / Reflectorless: ±(5 +10ppm x D)mm

Measuring time (minimum count)

Fine

2.5sec. (0.1mm)

1.5sec. ( 1 mm)

0.4 sec. ( 1 cm)

Normal

Track

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PENTAX R-300 (p65-88) 10/30/02 11:11 AM Page 77

11 SPECIFICATIONS

R-322 (N)

R-323 (N)

R-325 (N)

R-335 (N)

R-315 (N)

R-326

Angle measurement

Measuring method

Detection

Absolute rotary encoder

2 sides

Minimum count

1” (2cc) / 5” (10cc) selectable

Accuracy

(DIN18723)

2”

3”

5”

6”

Compensator

Tangent screw

Triple axis

2 speed

Dual axis

1 speed

Sensitivity of vials

Plate level

(electronic)

30”/1div.

40”/1div.

Circular level

Plummet

8’/2mm

Visible Laser, ±0.8 mm (instrument height 1.5m)

Detachable Shifting Fixed

Detachable

Base

Water resistant

IPx6

-20°C ~ +50°C / -4°F ~122°F (Working range)

Ambient

temperature

Tripod thread

5/8” x 11

35mm x 2

5/8” x 11

Dimensions/Weight

Instrument

172(W) x 343(H) x 440(L) mm

5.5 kg

Weight

(incl. Battery)

5.7 kg

Carrying case

268(W) x 442(H) x 465(L) mm/3.9kg

Battery pack BP02

Power source

Ni-MH (Rechargeable)(4300mAh) , DC6V

Operation time

Continuous Approx. 5 hrs (ETH+EDM),12 hrs (ETH) with Approx. 2.2 hrs of of

charging time

Weight

Approx. 380g

Charger BC03 and AC Adapter AC01

Input voltage

Output voltage

Weight

DC16V

DC7.5V/ 9V

280g

100~240V

DC16V

Internal Memory

Coordinates data

7500 points (Measured and input coordinate data)

Note: Reflector sheet: By PENTAX genuine Reflector sheet (5cm x 5 cm)

G Normal conditions: 20km visibility with slight shimmer

G (Good conditions): 40km visibility, overcast, no heat no shimmer and moderate wind

G Reflectorless The measurement range and accuracy are determined by the white side

of the Kodak Gray Card.

G The measurement range at TRACK mode by Reflectorless mode is over 5m.

G The measurement range may vary by measurement conditions.

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PENTAX R-300 (p65-88) 10/30/02 11:11 AM Page 78

12 DATA COLLECTOR

The instrument can communicate directly with a computer through the RS232C

interface. By use of a data collector you can automate data entry from the

collection of survey data to the transfer of the data to a computer. This is useful in

saving time and protecting data integrity.

G About connection with data collector and the handling, please refer to an

“Instruction manual” of the data collector.

G Connecting a data collector to a computer is different with every system.

Please contact your local dealer about them.

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PENTAX R-300 (p65-88) 10/30/02 11:11 AM Page 79

13 APPENDIX

13-1 Error Messages

Message

Meaning

What to do

Out of tilt range

Displayed when the instrument is tilted

beyond the vertical compensation range

(±3') in case 1 axis or 2 axis automatic

compensation is selected. This message

may be temporarily displayed if the

instrument is turned too fast.

Re-level the instrument. Repair is

needed if the message is displayed

when it is properly leveled.

Excess data

The input data exceeds the allowable

range.

Press the [ESC] key and enter the

correct data.

Mismatched

Target

The distance is measured by Prism at Select the correct target mode.

Reflector sheet mode, and the

distance is over than 1000m.

The distance is measured by Prism or

Reflector sheet at Reflectorless

mode, and the distance is over than

200m.

Target is too

close.

The measurement distance is less

than 1.5m at Reflector sheet mode.

The measurement distance is less

than 1.5m at Prism mode.

Select a longer point, or use a tape

measure.

Unsuitable

Condition

Under too strong sun light.

Unstable light value owing to shimmer better reflectivity, or use a reflecting

or obstacles. sheet, or wait until the sun activity

Change the object that has much

Reflector sheet, Target and Prism do has weakened.

not face the instrument.

Reflector sheet, Target and Prism are

not correctly sighted.

Measurement range is over at

Reflectorless mode.

Sufficient signal does not return by

sighting sharp edge etc. at

Reflectorless mode.

ERROR!!

EDM ERROR 04

-05, 34-39, 50-53

Distance measurement system problem

Angle measurement system problem

Turn the power off, and then turn on

again.

Repair is needed when the

message appears consistently.

ERROR!!

ETH ERROR 70-

ERROR!!

Memory problem

ETH ERROR 19

ERROR

Problem of the internal EDM parameters

S DATA of EDM

ERROR

P DATA of EDM

ERROR

Problem of the internal ETH parameters

ETH DATA

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PENTAX R-300 (p65-88) 10/30/02 11:11 AM Page 80

13 APPENDIX

13-2 Atmospheric Correction

The speed at which light travels through the air varies depending on the

temperature and atmospheric pressure. The R-100 series is designed to measure

distances at the speed of light in order to measure accurately, Atmospheric

Correction needs to be used. The instrument is designed to correct for weather

conditions automatically if the temperature and pressure are input. Correction is

then carried out based on the following formula.

Calculation formula

78.565271· P

273.14941 + t

) × 10 ⁶

K=(276.26713 –

K: Atmospheric Correction Constant

P: Atmospheric pressure (hPa)

t: Temperature(°C)

Distance after Atmospheric Correction D = Ds (1+K)

Ds: Measured distance when no Atmospheric Correction is used.

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PENTAX R-300 (p65-88) 10/30/02 11:11 AM Page 81

13 APPENDIX

13-3 hPa and mmHg Conversion Table

Converting from hPa to mmHg

hPa

500

600

700

800

900

mmHg

375

450

525

600

675

383

458

533

608

683

758

833

908

390

465

540

615

690

765

840

915

398

473

548

623

698

773

848

923

405

480

555

630

705

780

855

930

413

488

563

638

713

788

863

938

420

495

570

645

720

795

870

945

428

503

578

653

728

803

878

953

435

510

585

660

735

810

885

960

443

518

593

668

743

818

893

968

1000 750

1100 825

1200 900

Converting from mmHg to hPa

mmHg

400

500

600

700

hPa

533

667

800

933

547

680

813

947

560

693

827

960

573

707

840

973

587

720

853

600

733

867

613

747

880

627

760

893

640

773

907

653

787

920

987 1000 1013 1027 1040 1053

800 1067 1080 1093 1107 1120 1133 1147 1160 1173 1187

900 1200 1213 1227 1240 1253 1267 1280 1293 1307 1320

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PENTAX R-300 (p65-88) 10/30/02 11:11 AM Page 82

13 APPENDIX

13-4 Error when no Atmospheric Correction is made

When measurement is carried out with no Atmospheric Correction (with the

settings fixed at a temperature of 15°C and an atmospheric pressure of 1013 hPa

or 760 mmHg), the Error per 100 meters in temperature and pressure will be

shown in the tables below.

G When the actual pressure is 1013 hPa (760 mmHg) and the temperature is

25°C, conducting the measurement with the temperature left at 15°C will

result in the measurement being short by 0.9 mm per 100 meters.

Error table: When hPa (15°C, 1013hPa as standard)

Unit:mm

hPa

C°

1200

1100

1013

900

800

700

600

500

2.0

3.0

4.0

5.2

6.3

7.6

9.0

-0.5

0.4

1.4

2.4

3.5

4.7

5.9

-2.6

-1.8

-0.9

-0.0

1.0

-5.5

-4.7

-4.0

-3.1

-2.2

-1.3

-0.2

-8.0

-7.3

-6.6

-5.9

-5.1

-4.2

-3.3

-10.5

-9.9

-9.3

-8.6

-8.0

-7.2

-6.4

-13.0

-12.5

-12.0

-11.4

-10.8

-10.2

-9.5

-15.5

-15.1

-14.6

-14.2

-13.7

-13.1

-12.6

-5

-15

2.1

3.2

Error table: With mmHg (15°C, 760mmHg as standard)

Unit:mm

mmHg

900

800

760

700

600

500

400

C°

2.0

3.0

4.0

5.2

6.3

7.6

9.0

-1.3

-0.4

0.5

1.5

2.5

3.7

4.9

-2.6

-1.8

-0.9

0.0

1.0

2.1

-4.6

-3.9

-3.1

-2.2

-1.3

-0.3

0.8

-8.0

-7.3

-6.6

-5.9

-5.1

-4.2

-3.3

-11.3

-10.8

-10.2

-9.6

-8.9

-8.2

-14.6

-14.2

-13.7

-13.3

-12.7

-12.2

-11.5

-5

-15

3.2

-7.4

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PENTAX R-300 (p65-88) 10/30/02 11:11 AM Page 83

13 APPENDIX

13-5 Atmospheric Refraction and Earth Curvature Correction

G Atmospheric refraction and earth curvature correction refers to correcting both

the bending of the light beam caused by atmospheric refraction and the effect

on the height differential and horizontal distance caused by the earth

curvature.

G Correction called “atmospheric refraction and earth curvature correction” is

initiated to correct error when the slope distance and vertical angle are

caused to determine the horizontal distance and the height differential, with

this instrument, the following formula is used to correct these factors.

G Calculation formula when atmospheric refraction and earth curvature

correction parameter is set to “ON”:

Corrected horizontal distance (H)

K–2

H= S (Cosα + Sinα ·

· S · Cosα)

2Re

Corrected vertical distance (V)

1–K

V= S (Sinα + Cosα ·

· S · Cosα)

2Re

G Calculation formula when atmospheric refraction and earth curvature

correction parameter is set to “OFF”:

Horizontal distance H' = S · Cosα

Vertical distance

V' = S · Sinα

S: Slope distance

α: Vertical angle from horizontal

K: Atmospheric refraction coefficient (0.14 or 0.2)

Re:Diameter of earth (6,370 km)

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PENTAX R-300 (p65-88) 10/30/02 11:11 AM Page 84

13 APPENDIX

13-6 Distance Range

Generally speaking, the maximum range which can be measured varies

considerably depending on the atmospheric conditions. For this reason, the

Specifications illustrate the values for both Good and Normal weather conditions.

It is extremely difficult to judge when weather conditions are “Good” and when

they are “Normal”. With this instrument, the conditions noted below are used to

differentiate between the two situations, (Good weather conditions for surveying

are different from Normal weather conditions, and in surveying situations, cloudy

skies are considered more favorable than sunny skies.)

Weather conditions for measurement ranges are based on the following standard

values:

Normal: Visibility of approximately 20 km, with slight shimmer and moderatewind.

Good: Visibility of approximately 40 km, overcast, with no shimmer and

moderate wind.

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PENTAX R-300 (p65-88) 10/30/02 11:11 AM Page 85

14 NOTICE TO THE USER OF THIS PRODUCT

14 NOTICE TO THE USER OF THIS

PRODUCT

To assure compliance with the Safety standard 21 CFR, Chapter 1. Subchapter J.

The U.S. bureau of Radiological Health requires the following information to be

provided to user.:

It can be dangerous to look into the beam with optical equipment such as

binoculars and telescopes.

1) Specifications of Laser Radiation

A) The EDM module of the R-300 produces a visible light beam, which is

emitted from the telescope objective lens and the center hole of the

instrument base plate. The R-300 is designed and built to have a laser

diode radiating at 620-690 nm.

B) Radiant power

The R-300 is designed and built to radiate a maximum average radiant

power of 4.75mw. (0.95mw for the model without “N”) from the telescope,

and 0.95mw from the center hole of the base plate. The user may be

subject to this radiation as a beam while operation until such time that the

instrument is turned off.

2) The following labels are affixed to and must remain attached to this laser product.

A) The following Certification label is located near the Plate level.:

“This laser product is complied with the provisions of 21 CFR 1040. 10 and

1040.11. For a Class II laser product.”

Or for R-300 N models:

“This laser product is complied with the provisions of 21 CFR 1040. 10 and

1040.11. For a Class IIIa laser product.”

B) Caution label is located near the exit aperture :

“AVOID EXPOSURE Laser radiation is emitted from this aperture.”

C) Warning logotype is located on the surface of the telescope:

“CAUTION LASER RADIATION DO NOT STARE INTO BEAM”

Or for R-300 N models:

“DANGER LASER RADIATION AVOID DIRECT EYE EXPOSURE”

D) Warning label is Located near the exit aperture.

3) Caution to maintain the safety in compliance with the standard

A) To maintain the safety standard, refrain from any operation, maintenance,

or adjustment other than described in this instruction manual.

B) Operation, maintenance or adjustment other than those specified in this

instruction manual may result in hazardous radiation exposure.

C) Maintenance and repair not covered in this manual must be done by an

authorized Pentax dealer.

D) The Laser beam emission by the Distance measurement can be

terminated by pressing F1 MEAS key.

E) Pressing Laser key → F2 LD POINT key can terminate the laser beam

emission by the laser pointer.

F) The Laser beam emission by the Laser plummet can be terminated by

pressing Laser key.

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PENTAX R-300 (p65-88) 10/30/02 11:11 AM Page 86

14 NOTICE TO THE USER OF THIS PRODUCT

Warning label

Aperture label

Laser beam is transmitted

from this aperture.

Identification label

Aperture label

Laser beam is transmitted

from this aperture.

Warning logotype

For R-300N model

Warning logotype

For R-300N model

For R-300 model

Laser beam is transmitted from this aperture.

For North America

Certification

R-300N model

R-300 model

LED is turned on at the time of emission.

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PENTAX R-300 (p65-88) 10/30/02 11:11 AM Page 87

14 NOTICE TO THE USER OF THIS PRODUCT

[TARGET PLATE]

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PENTAX R-300 (p65-88) 10/30/02 11:11 AM Page 88

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PENTAX R-300 (p01-19) 10/30/02 11:20 AM Page b

2-5-2, Higashi-Oizumi, Nerima-ku,

Tokyo, 178-8555, Japan

Tel: +81-3-5905-1222

Fax:+81-3-5905-1225

Member symbol of the Japan Surveying

Instruments Manufacturers’ Association

representing the high quality surveying products.

10.2002 First Edition

TS01101E

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