Operation Manual
NEWCON OPTIK ™ 2007
Printed in Canada
LONG RANGE
LASER RANGE FINDER
LRB 20000
In USA: 2331 Superior Ave. Cleveland, OH 44114
In Canada: 105 Sparks Ave., Toronto, ON M2H 2S5
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18. CUSTOMER SUPPORT
IMPORTANT INFORMATION
Read prior to activation
Should you experience any difficulties with your Newcon
OPTIK product, consult the enclosed manual. If the problem
remains unresolved, contact our customer support department at
1(416) 663-6963 or Toll free at 1-877-368-6666. Our operating
hours are 9am-5pm, Monday - Friday, Standard East Time.
You have just purchased a complicated electronic device, which
emits hazardous invisible laser radiation. To operate it properly,
please read this manual carefully. Here are some common
precautions that must be noted.
At no time should the equipment be sent back to Newcon
without following the instructions of our technical support
department.
• NEVER direct laser radiation at people or animals
• NEVER stare into direct, scattered or reflected laser beam
• NEVER aim the unit at the sun or bright light sources
• NEVER subject the unit to impact while operating or being
transported
Newcon accepts no responsibility for unauthorized returns.
• NEVER transport the unit without the case
• NEVER disassemble the unit. This device contains high
voltage components, which may be hazardous for you!
• NEVER reverse polarity of the battery
To locate NEWCON Authorized Dealer call:
Tel: (416) 663-6963 Fax: (416) 663-9065
Email: [email protected]
• ALWAYS keep the unit out of the reach of children
• ALWAYS remove the battery when the device is not in use
for a long period
• ALWAYS store in a warm dry place when the device is not
in use
The defective products should be shipped to:
From USA: 3310 Prospect Ave. Cleveland, OH 44115
From all other countries: 105 Sparks Ave., Toronto, ON
M2H 2S5, CANADA
• Caution - use of controls or adjustments, or performance of
procedures other than those specified herein may result in
hazardous radiation exposure
• Caution - the use of optical instruments such as binoculars,
loupes, mirrors, etc. with this product increases eye hazard
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17. WARRANTY
Features of the LRB 20 000 Laser Range Finder
Binocular
NEWCON OPTIK warrants this product against defects in
material and workmanship for one year from the date of the
original date of consumer's purchase, but no more than 18
months from the date of manufacturing. Longer warranty periods
are available, subject to the terms of specific sales contract.
Should your Newcon product prove defective during this period,
please bring the product securely packaged in its original
container or an equivalent, along with proof of the date of
original purchase, to your Newcon Dealer. Newcon will repair
(or at its option replace), the product or part thereof, which, on
inspection by Newcon, is found to be defective in materials or
workmanship.
•
•
•
•
•
•
Digital data output
First or last target indication
Built-in compass
Lightweight
Rugged
Meet all military specifications
What This Warranty Does Not Cover:
NEWCON is not responsible for warranty service should the
product fail to be properly maintained or fail to function properly
as a result of misuse, abuse, improper installation, neglect,
damage caused by disasters such as fire, flood, lightning,
improper electrical current, or service other than by a NEWCON
Authorized Service. Postage, insurance, or shipping costs
incurred in presenting your NEWCON product for warranty
service are your responsibility. Please include a cheque or money
order made out to NEWCON OPTIK for the amount of $15.00 to
cover shipping and handling within North America.
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If you use Windows 95, 98 or ME:
TABLE OF CONTENTS
-
-
-
Turn computer on and enter the BIOS SETUP in accordance
with the computer documentation.
Set the address of LPT port as 378h, and port type as EPP.
Register the new settings.
After OS on your computer has been loaded, insert the
supplied diskette into the floppy disk drive.
1. Overview
2. Abbreviations
12. Long term storage
13. Storage rules
14. Shipment
15. Rechargeable battery
handling
16. Data output to external
equipment
17. Warranty
3. Technical characteristics
4. Supplied accessories
5. Principles of work
6. Safety precautions
7. Preparing for use
8. Operating procedure
9. Serviceability test
10. Maintenance
-
-
Run program with the name “BDEPP5.EXE”.
Perform measurements as described in the manual. The
results will be shown in the communicator program window.
18. Customer support
19. Acceptance certificate
To exit the program, press the space key.
Complete the work in the following order: turn off the
LRB20000A power, take the disk out of the disk drive, and turn
the computer off.
11. Troubleshooting
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The supplied software allows data acquisition on IBM PC
compatible computers in DOS/Windows environment. To start
communication with computer, do the following:
1. OVERVIEW
RANGEFINDER BINOCULAR LRB 20000 is an advanced
Laser Rangefinder system that provides instant distance
measurements consistently and accurately. The stereoscopic
device provides convenient observation with both eyes.
Therefore, the LRB 20000 eliminates a need for two separate
devices (binocular and rangefinder) combining both
requirements in a single device. It is designated for industrial-
technical purposes, ground surveillance, observation of
individual targets and measurement. It can be used in geological
and engineering survey, repair works, maritime navigation,
meteorology and tourism.
The rangefinder completed with the Angular Mount is designed
for referencing ground location point by the predetermined
landmark coordinates and is capable of:
- measuring horizontal angles and magnetic azimuths:
- measuring vertical angles and angles of elevation;
- determination of target and landmark polar coordinates;
- polar-to-rectangular landmark and target coordinate conversion
and determination of the OP and target coordinates from the
predetermined landmark coordinates.
If you use Windows NT, 2000, XP, or 2003 Server:
-
-
Turn off the computer.
Insert the disk which is supplied with the LRB 20,0000A
into the floppy disk drive.
-
-
Turn computer on and enter the BIOS SETUP in accordance
with the computer documentation.
Set the address of LPT port as 378h, and port type as EPP. In
boot menu, choose the first bootable device as Floppy Drive.
Register the new settings.
-
Proceed with loading, choose “5” or just press “Esc” in
options menu. After full loading your computer will work
under MS-DOS.
-
-
In line a:\> type BDEPP5 and press enter to launch the
communication program.
Perform measurements as described in the manual. The
results will be shown in the communicator program window.
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The rangefinder is operable in the temperature range between –
40 and +50 °C, relative air humidity of up to 98% (as taken at
35 °C), air pressure of 61 kPa (460 mm Hg) minimum, and in the
sea mist conditions. It is powered with a rechargeable battery 10
D-0b55С-1. It can be powered with a vehicle electrical system
providing (27±2.7) V, or non- rechargeable battery producing
from 12V to 14.5V or from 22V to 29 V.
16. DATA OUTPUT TO EXTERNAL EQUIPMENT
The measured data can be exported to a remote computer
through the connector X2.
To export the output data, you must to apply the voltage of 3 to 8
V from the connected computer to the pin 9 of the connector X2.
The amplitude of the output signals will depend on the value of
the supplied voltage.
Upon receipt of the rangefinder and prior to operation the
user should proceed as follows:
The measured range information is exported in cycles by a
binary decimal code through four data and three address buses
according to Table 16.1.
The strobe starting the data export appears on pin 8 of the
connector X2 in form of a positive pulse edge.
Table 16.1
-
-
-
-
check to see that the seals on the wooden and metallic
packaged are intact;
check completeness of the range finder against Section 5 of
this manual;
check to see that the serial number of the rangefinder is the
same as indicated in Sections 17-19;
make sure that the optical surfaces are free from grease
stains, dirt, cracks and condensed moisture. Remove dirt and
grease as directed in item 1 of table 11.1;
Address
Data
X2/7 X2/6 X2/5 X2/1, X2/2, X2/3, X2/4
0
0
0
0
1
0
0
1
1
0
0
1
0
1
0
ones of meters (0000 or 0101)
tens of meters (from 0000 to 0101)
hundreds of meters (from 0000 to 0101)
thousands of meters (from 0000 to 0101)
tens of thousands of meters (from 0000 to
0011)
-
-
inspect the range finder exterior for physical damage (no
cracks, dents, deep rust are admitted);
check the dehydrator for working condition. If the silica gel
is pink in color, replace it with the new one taken from
individual SPTA set (item 11.6.3);
In each cycle, the digits of the binary decimal data code are
delivered to the pins of connector X2 in accordance with the
schematic circuit diagram of the range finder given in Fig.3.
-
place the battery in operation as directed in Section 16 of this
manual
(the rechargeable battery is supplied uncharged).
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To secure trouble-free operation of the rangefinder:
-
-
Charged as described under 15.3;
Discharged by setting the toggle switches to the
DISCHARGE and MAIN positions until the DISCHARGED
light diode flashes on and off to indicate the discharged
condition. Charge up the operating voltage for 15 hours as
described under 15.3.
- be prompt in replacing the rechargeable battery by freshly
charged when the red LED in the left-hand eyepiece of the range
finder starts to illuminate;
- keep the range finder dry at all times especially in the cold
season of the year;
15.3.3. The battery that has been stored in the discharged
- after exposure to subzero temperatures keep the range finder at
room temperature for at least two hours before unpacking and
then mop up the condensed moisture;
condition for over 3 months is subject to two processing cycles
before use.
Cycle 1
- while operating the range finder at temperatures above 35˚ C
and exposing to direct sunrays, attach cover AEP 42.63.021
taken from individual SPTA set to keep away sunlight.
Moistening the cover with water is permitted to cool off the
range finder.
-
-
Charging for 24 hours with the toggle switches set to the
CHARGE and PREPARATORY positions on the charging
device;
Discharging with the toggle switches in the DISCHARGE
and PREPARATORY positions, until the LED labelled
DISCHARGED flashes.
After replacement of emitter and (or) control circuit board make
entries in Section 4 of this manual as to their new serial numbers
and basic characteristics.
Cycle 2
-
-
Charging as directed under 15.3.;
Discharging with the toggle switches set to the
DISCHARGE and MAIN positions on the charging device,
until the DISCHARGED diode flashes.
If the minimum discharging time is 5 hours, charge the battery
up to the operating voltage as directed in 15.3.
If the discharging time is between 5 and 3.5 hours, subject the
battery to another Cycle 2 as described in 15.3.3, then charge it
up to the operating voltage as described in 15.3.1.
It’s prohibited to use the battery, if the discharging time was
under 3.5 hours.
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15. RECHARGEABLE BATTERY HANDLING
2. ABBREVIATIONS
15.1. The rechargeable battery is supplied in discharged
condition.
The following abbreviations are used herein:
15.2. While handling the battery, be certain to:
AC ckt – automatic control circuit,
-
-
avoid contact with any bare circuit components while
charging the battery;
strictly comply with the prescribed charging/discharging
procedures.
AI
CD
– angular mount,
– charging device,
DCC – direct current converter,
ER "0" – zero elevation reference,
F ckt – firing circuit,
NEVER:
-
-
dismantle the battery;
store the battery together with acids, or batteries using acids.
IDA – information display assembly,
OP
PD
– observation post,
– protective device,
15.3. The battery is subject to charging at an ambient
temperature of (20±5) °C.
To charge the battery, do the following:
PhD – photodetector (assembly),
SB – rechargeable battery,
SPTA – spare parts, tools and accessories,
TSGC – time sensitivity gain control,
-
-
Unscrew the cover of the battery section on the charging
device;
Place the battery in the section coupling the "+" terminal
with the bottom contact of the section, and screw the cover;
TIC
– time-interval counter
Connect the charging device to the power source using the
appropriate cable (see in Section 11.3).
15.3.1. The battery that has been stored in the discharged
condition for a maximum of 28 days is to be charged for 15
hours. The toggle switches are placed in the CHARGE and
MAIN positions on the charging device.
15.3.2. If the battery has been stored in the discharged condition
for a time between 28 days and 3 months, it should be cycled as
follows:
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NEVER store the rangefinder on the floor near heaters.
The rangefinders are arranged in the storage room so that steel
and iron objects are at least 2 m away.
3. TECHNICAL CHARACTERISTICS
Rated and
To prevent demagnetizing of the needle, the latter should be
aligned with the magnetic meridian. To achieve that, store the
packing cases so that the arrow marked on top points to the
North.
Charged batteries may be stored together with the rangefinder
unit for up to three months.
13.3. The rangefinder placed in short-term storage (up to 3
months) is subject to inspection as directed in Section 10.5 and
Long Term Storage as directed in Section 12.
13.4. If the rangefinder is to be stored for over three months,
discharge the batteries as directed in Section 15.
Parameter
Optics
Binocular magnification
Binocular angle of vision
Eye relief, mm
tolerable value
(7±0.3)x
6.7˚±20´
18
Rangefinder
Range measurement limits, m
Measurement error, m, max
Time of preparation for range measurement
after depressing of MEASURE button, s
Range information memory storage time, s
Emitter
100 to 20,000
±5
3
3…5
Wavelength, nm
Output energy, mJ
1.06
15
14. SHIPMENT
Pulse duration, ns
6
Beam divergence, no more, mrad
Miscellaneous
Supply voltage to generate “Low
Battery” light warning circuit operation, V
Capacity of pumping capacitors, µF
Weight, kg, max
0.6
14.1. The rangefinder unit is to be shipped in wooden package
AEP 42.83.368. The rangefinder can be shipped by any transport
means. During shipping, it must be protected against
precipitation, spray and sun rays.
14.2. Before transit, the rangefinder must be closed down and all
its components are secured in the metallic package AEP
42.86.184 (Fig. 7). All locks and hinges of package and case are
secured.
11±0,3
18 to 22
2.5
110x215x225
50,000
Overall dimensions, mm, max
In-service operating life, measurements, min
14.3. When carrying the rangefinder in a truck, stow it in the
front with the cover up and secure to prevent impacts.
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11.3.5. The individual SPTA set is packed in the case 4 (Fig. 7).
The case contains the spare rechargeable battery, pencil, eraser,
cloth and coordinate converter.
The principal parameters of the emitter with serial number
_______, fitted into the rangefinder, are as follows:
Ambient temperature
Parameter
12. LONG TERM STORAGE
normal
–40˚ C
conditions
50˚ C
To preserve the rangefinder, proceed as follows:
Minimum operating pumping
voltage U oper.min. , V, max
Maximum operating pumping
voltage Uoper.max. , V, max
Pumping voltage temperature
coefficient ТКНn , V/˚C
-
-
-
-
cap the rangefinder connectors by paper and tie a cord round;
coat the range finder bright work with grease GОI-54P;
pack up all range finder components in metallic package;
secure all locks and hinges of package and with grease GОI-
54P;
–
–
–
–
-
pack up the tripod in recess on package cover and fasten by
belt;
Capacity of storage capacitors
Cc of emitter test set, F
-
-
insert rangefinder unit into polyethylene bag;
insert the sack with silica gel into the bag and weld it.
The principal parameters of the control circuit board with serial
number _______, fitted into the rangefinder, are as follows:
13. STORAGE RULES
Ambient temperature, ˚ C
Pumping voltage Upump. , V
13.1. The rangefinder is stored in closed rooms specially
equipped to provide weather protection, i.e. protection against
atmospheric precipitation, solar effects, dust, sand, wind, sharp
fluctuations of temperature and outside air humidity.
The storage room temperature is to be maintained between –40
°C and +50 °C and relative humidity of up to 98% taken at 35 °C
and below. Avoid moisture condensation in the premises.
13.2. Each rangefinder unit in wooden package is kept on a
wooden rack or shelf with handle up.
–40
Normal conditions
50
Note: The principal characteristics of the emitter and the control
board, given in the above tables, are intended for service entities
as a reference data.
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-
protection device 12, used to supply the rangefinder with
(27±2.7) V DC or 22-29 V from a vehicle electrical system,
or with 22-29 V or 12-14.5 V from external batteries;
cable 14, used to couple the protection device to the
electrical system of a track-laying vehicle;
cable 15, used to connect the protection device to external
rechargeable battery type 6CT70 (or analogous);
cable 16, used to connect the protection device or charging
device to the electrical system of a wheeled truck;
cable 17, used to couple the charging device to a mains of
220 V 50 Hz;
cable 18, used to couple the protection device to external
battery type 21NКBN-3,5;
pencil 3 and eraser 8, used while working with the map and
coordinate converter;
coordinate converter 10, used for polar-to-rectangular
coordinate conversion, reference location of the observation
post and orientation of the range finder;
4. SUPPLIED ACCESSORIES
Serial
No.
Description
Rangefinder
Tripod (optional)
Angular mount
(optional)
Designation
Qty
Remarks
-
-
-
-
-
-
-
AEP 41.46.712
G 42.14.067
G 42.21.812
1
1
1
Rechargeable
battery
10D-0,55С-1
2
5
Fuse link VP1-1
1,0 A 250 V
Sealing ring
Framed lens
Membrane
G 68.79.193-
02
G 44.21.885
AEP 75.48.092
G 47.92.131
2
1
2
2
1
1
1
Eye shield
Diaphragm
Pencil TM, M, CT, T AEP 73.54.031
Wrench
-
-
-
sealing ring 4, used to seal battery section;
Synthesized fiber
brush KXOOK No.
7
AEP 87.61.505
eye shield 5, used to exclude incident light in the eyepiece;
framed lens 6, used to contribute the angle reading
convenience and accuracy when operating the AI;
membrane 19 to seal the MEASURE button assembly;
cover 20, to protect the rangefinder against direct sun rays;
cover 21, used to protect the rechargeable battery against
damages.
1
1
1
1
1
1
1
Coordinate converter G 42.41.211
-
-
-
Cable
Cable
Cable
Cable
Cable
AEP 48.44.037
AEP 48.44.038
AEP 48.44.039
AEP 48.44.040
AEP 48.44.120
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11.3. To correct problems by using the individual SPTA set
proceed as follows (see Fig. 6).
11.3.1. To replace the fuse link 2 in the protection device:
Serial
No.
Description
Eraser
Cloth
Designation
Qty
Remarks
-
Unscrew the threaded cover from the housing of the
protection device;
1
2
G61.93.516
AEP 43.79.608
AEP 43.79.607
-
-
-
Remove the defective fuse link;
Insert the spare fuse link from the SPTA set;
Screw the cover on the housing of the protection device.
Charging device
Protection device
Silica gel
Package
Package
Package
Casing
Casing
Cover
Cover
1
1
50 g
1
1
1
1
1
1
AEP 42.86.186
AEP 42.83.368
AEP 42.86.184
G 42.62.345
AEP 45.71.018
AEP 42.63.021
AEP 42.63.030
G 42.63.332
11.3.2. To replace the rechargeable battery 1:
-
-
-
Open the cover of the battery section;
Remove the used battery;
Fit the new battery in the section so that the "+" terminal of
the battery is connected with the bottom contact of the
section;
-
Close the cover of the battery section.
1
1
11.3.3. To replace the fuse link in the charging device:
Cover
-
-
-
-
-
-
Unscrew the outer threaded covers from the fuses;
Unscrew the bayonet of the fuse link holders;
Remove the fuse links;
Fit in good fuse links;
Close the holder covers;
Operating manual
1
Screw on the outer threaded covers.
11.3.4. The individual SPTA set includes the following tools and
accessories:
-
charging device 11, operated to charge the rechargeable
battery 10D-0,55С-1 from a vehicle electrical system
(27±2.7) V DC or 22-29 V and from a commercial line 220
V 50 Hz;
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5. PRINCIPLES OF WORK
11.2. The possible problems with the rangefinder are listed
below in Table 11.1
Table 11.1
5.1. The LRB 20000 assembly (Fig.1) consists of rangefinder 1
mounted on the angular mount 2. The latter is mounted on the
tripod 3.
5.2. Rangefinder (Fig.2) is designed for terrain observation and
measuring the distance to the closest or next-in range target
caught in the beam. It works with the principle of measuring the
light pulse round-trip time. The measurement result is displayed
in meters on digital range indicator and can be also stored in the
computer for further calculations.
Problem
Probable reason
Solution
description
1. Picture is blurred
in the right-hand
eyepiece
Condensed moisture, Clean exterior of optical
dirt on external
optical surfaces
Condensed moisture
on internal optical
surfaces
parts as directed under
10.6.2
Dry rangefinder as
directed under 10.6.3
The schematic circuit diagram of range finder (Fig.3) shows
rechargeable battery (G1), controls switches (S1- S4), pumping
and firing elements (ref. designations C1-C3, E1, L1, T1, V1-
V2), control circuit board (A1), display circuit board (A2),
counter circuit board (A3), and photodetector assembly (A4).
Toggle switch S1 is operated to energize the range finder, and
toggle switch S4 – to light up the light-emitting diode (LED) H1
which illuminates the reticle pattern.
Button switches S2 and S3 labeled (MEASURE 1) and
(MEASURE L) respectively are used to prepare the rangefinder
for taking a measurement (by pressing one of those buttons).
Button S2 is operated to range the closest target, whereas
button S3 is used to engage the next-in-range target caught in the
beam.
2. Readiness
indicator remains
dark after
MEASURE 1
(MEASURE L)
button release
Open circuit in the
battery section (when directed under 10.6.1
standard battery is
used)
Blown fuse in the
protection device
(when vehicle
electrical system is
used)
Open circuit in
battery section (when directed under 10.6.1
vehicle electrical
Clean contacts as
Replace fuse as directed
under 11.3.1
Clean contacts as
system is used)
3. Red Low Battery
indicator is on
Unallowably low
battery voltage
Replace the battery with
a newly charged one as
directed under 11.3.2
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- remove the moist silica gel from the case and fill the case with
the fresh one.
Connector X1 couples the controls and the Rechargeable
battery to control circuit board (A1).
Moist silica gel may be subjected to multiple dehydrations at
(120±3) °C without any deterioration of its properties. Using a
microwave oven is allowed.
To dehydrate the silica gel, proceed as follows:
- place the silica gel in a clean metal vessel;
- place the vessel on the heat source providing heating up to
(120±3) °C. Measure the temperature directly on the silica gel;
- see the silica gel changing its colour.
C1 and C2 are energy storage capacitors placed in the pumping
circuit. They are charged up to 700-1000 V through a special
contact located on the control circuit board A1. Capacitor C3 and
diodes V1, V2 are placed in the pumping circuit to prevent RF
oscillations or reversal of the voltage polarity across capacitors
C1, C2. E1 is a pumping flashtube. Transformer T1 produces 10-
15 kV firing voltage pulses applied to tube E1. The primary
winding of the transformer is furnished with a negative voltage
of 130 to 185 V supplied from control circuit board A1. The
flashtube is externally ignited. The ignition voltage pulse is
conducted to the metal-clad envelope of the tube E1.
The silica gel is dry and good for use when it turns bluish from
pink. When heating up, keep the silica gel away from open
flames.
DCC, AC ckt, power supplies of the TIC, PhD assembly and
battery charge analyzer are mounted on board A1.
11. TROUBLESHOOTING
The counting-logic circuitry of the TIC and the TSGC of the
PhD assembly are located on counter circuit board (A3).
A2 is the information display assembly board. Arranged
thereon is the indicating circuit of the TIC: digital range
indicator, multiple target indicator, outgoing pulse absence
indicator, ranging readiness indicator (green) and battery
discharged condition indicator (red). Control signals and supply
voltages pass through display circuit board A2 from control
circuit board A1 to circuit board A3 and to the PhD assembly.
Circuit boards A1, A2 and A3 are connector-coupled with the
PhD assembly. Plug X2 couples the cable of the remote control
set to receive range data in binary code.
11.1. If the rangefinder or its components do not function
properly, first of all check that:
- the rangefinder is properly set up;
- the controls have been operated in the proper succession;
- the optical parts are free from dust, dirt and oil stains on the
exterior;
- the battery is charged.
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5.3. Angular Mount (Fig. 4) is intended for mounting rangefinder
on a tripod, aim the rangefinder to the target and measure the
azimuth and elevation values. The main part of the Angular
Mount (AI) is body 15, which incorporates the elevation and
azimuth worm-gear drives.
Use adjustment knobs 1 and 7 for the fine tuning of the
rangefinder. To perform initial tune-up, turn the unit through the
desired angle. Read the angles read on azimuth circle 14 and
scale 5. The wheels provide accuracy of 1/10 of a division.
Lenses 6 and 10 make the reading easier and more accurate.
Azimuth circle 14 is set to zero with knob 11, which should be
locked in this position. The horizontal adjustments are made on
the Angular Mount by using level 13. Magnetic meridian
orientation is achieved with the compass 8.
10.6. Maintenance Servicing Procedure.
10.6.1. To clean the contacts in the battery section, wipe the
contacts several times with cotton wool moistened with alcohol.
10.6.2. To remove dust and dirt from the optical surfaces, use the
brush 23 and clean cloth 7 supplied in the individual SPTA set
(see Fig. 6).
To remove greasy stains from the optical surfaces, do the
following:
- wind some cotton wool around one end a wooden stick;
- moisten the cotton wool with an alcohol and ether mixture (1:1)
and gently shake the stick to remove excess mixture;
- wipe the glass surface several times with the cotton wool,
avoiding contact with the frame;
- change the cotton wool and move the stick end spiral style from
the center towards the periphery to wipe the surface clean;
- while cleaning, watch that the mixture does not stain the frame,
for it may dissolve the sealing mastic, causing leakage or
ungluing of the lenses.
The rangefinder is fixed on the guides of bracket 3 of the AI,
and secured there with lever 2. By rotating the nuts 9 you adjust
retainer 4 of the clamping assembly.
The AI is installed on the tripod through the ball mount 12.
10.6.3. The dehydrator case should be filled with fresh silica gel
in a closed room. Under the field conditions, replace the silica
gel when the weather is dry and calm. Never keep the case with
fresh silica gel open for more than 1 or 2 minutes.
To change the silica gel, proceed as follows:
- prepare fresh silica gel 13 (see Fig. 6);
- unscrew the cover of the dehydrator case with the help of
wrench 9 (Fig. 6);
5.4. The tripod mount (Fig.5) is designed to adjust the height of
the rangefinder and Angular Mount as required for the particular
aiming position. The tripod consists of three telescoping legs 3
assembled on top in common base 2. Each leg can be deflected
independently. The AI is fixed to the tripod through mounting
head 1.
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10.5. In-service Maintenance.
The length of each leg is adjusted by retracting or extending the
moving section. The coupling nut 4 must be loosened first to
change the leg length.
Stay block in the bottom of the head is designated to secure the
AI on a log, a stump, or any similar piece of wood suitable for
the job.
10.5.1. During in-service maintenance, the range finger is
checked for serviceable condition in accordance with Steps 1
through 10 of Table 9.1.
10.5.2.The unit is not to be dismantled during in-service
maintenance.
10.5.3. For the servicing scope, refer to Table 10.3.
6. SAFETY PRECAUTIONS
Table 10.3.
Operations
Procedure
as per
As in Table
10.2.
Materials, tools and
accessories
As in Table 10.2.
6.1. Rangefinder LRB 20000 is an optical-electronic device
emitting high-density pulses of invisible light at wavelength of
1.06 µm, characterized by the following dangerous factors:
Servicing within
daily scope
-
-
-
direct laser radiation;
mirror-reflected laser radiation;
diffuse-reflected laser radiation.
Direct and mirror-reflected laser radiation of the
Cleaning contacts
of charging device,
protection device,
wires and battery
section
Para 10.6.1.
Absorbent optical cotton,
alcohol
rangefinder is dangerous for naked eyes at 1700 m distance
and less.
Diffuse-reflected laser radiation is dangerous at 0.43 m
distance from reflecting surface.
Repair of packing
case (when so
required)
Equipment, appliances and
tools available in repair
shop
Optical devices increase these distances in accordance with
optical device magnification ratio.
Laser energy at the output objective lens of the rangefinder
exceeds permissible level for skin by 16% and reaches
permissible level at 3.77 m distance from the rangefinder.
10.5.4. During in-service maintenance, the cycle life of the range
finder may not be spent by more than10 measurements.
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6.2. According IEC 825 standard the rangefinder belongs to the
third class device of laser radiation hazard.
Table 10.2
Procedure as Materials, tools and
Operations
per
Table 10.1
accessories
As in Table 10.1
NEVER:
1. Servicing within
Check Inspection
scope
-
-
-
Turn on the rangefinder aiming on people or animals;
Measure distance through window and door glasses;
Measure distance to mirror-reflecting surfaces (mirrors,
car and building windows, optical components, grinded
and polished surfaces), which are nearer than 1700 m to
the rangefinder;
2. Cleaning
Cloth
rangefinder to
remove dust, dirt
and moisture
-
-
Direct radiation to diffuse-reflecting surfaces (walls,
curtains, papers), which are nearer than 0.43 m to the
rangefinder;
Inspect the rangefinder optical components on the
housing side when the selector switch is on.
3. Retouching painted
exterior of the
rangefinder (when
required)
4. Drying and repair
the straps (when
required)
5. Replacing silica
gel (when required)
6. Replacing defective Article 10.6.3
components with
Brush, painting enamel
6.3. Persons who are in the dangerous zone of laser radiation
must wear protective goggles ZН22-72-СZС-22-6 or ОZP or
similar for eyes protection.
Silica gel
Individual SPTA set
spares (to be taken
from individual
SPTA set)
Article 11.3
7. Tightening sleeves
on knob end facets
Table 10.1,
Article 10.3
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Table 10.1
Materials, tools and
6.4. Only the following persons are admitted to work with the
rangefinder:
-
-
who are over 18 years old; and
who do not have medical contraindications for work with
laser emission; and
Operations
Procedure
as per
accessories
1. Cleaning external Article.
optical surfaces
(when required)
Lens Brush No. 7 (made
of synthetic fibre)
Absorbent optical cotton
Alcohol
-
-
who are instructed studied safe methods of operation with
the rangefinder regarding the safety rules; and
who are appointed responsible for operating the rangefinder
by the manager of the organization where the rangefinder is
in use.
10.6.2
2.Charging of
Section 15
rechargeable battery
(when required)
6.5. The rangefinder generates life-hazardous high voltage
during operation.
10.4. Daily Servicing.
NEVER disassemble the rangefinder yourself!
Repair the rangefinder only in a specialized shop.
10.4.1. During the Daily Servicing, the rangefinder is checked
for serviceable condition in accordance with Steps 1 through 10
of Table 9.1.
6.6. Between operation periods, be sure to cover the rangefinder
10.4.2. For the daily servicing scope, see Table 10.2.
objective lens with special cap fastened to the housing.
6.7. The persons operating the rangefinder should be instructed
on how to provide the first medical aid if laser emission burns
eyes and skin.
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7. PREPARING FOR USE
10.2. Maintenance Service Types and Intervals.
10.2.1. While in use, the rangefinder is subject to the following
types of maintenance services:
7.1. Choose an observation post.
7.2. Rotate the objective frame to bring the reticle to sharp focus.
7.3. Check the battery voltage and the rangefinder before
operation.
- check inspection;
- daily (routine) service;
- in-service maintenance.
7.3.1. To analyze the battery voltage, set the ON-OFF selector
switch to the ON position and check if the Low Battery indicator
glows red in the left-hand eyepiece. If it does, replace the
battery.
SET SELECTOR TO OFF BEFORE REPLACING THE
BATTERY!
10.2.2. The same servicing intervals are established for the
component parts and the entire rangefinder.
Check inspection is carried out before using the rangefinder.
Daily servicing is performed after each use. If the rangefinder is
not used for a while, the servicing within daily scope may be
substituted to biweekly visual inspection of the dehydrator
condition and, if is needed, replacement of the silica gel and the
rechargeable battery.
7.3.2. To check the rangefinder for proper functioning, proceed
as follows:
- Aim the rangefinder on the target with known distance to it;
- Set the ON-OFF selector switch to ON;
- Press and release the MEASURE 1 button;
- As the readiness indicator turns on, release the MEASURE 1
button and read the measured range;
- Compare the range measurement result with the actual distance.
The rangefinder is in good working order if the range
measurement is accurate to 5 m.
In-service maintenance is performed every six months and
before placing the rangefinder in short-term storage.
10.3. Check Inspection.
10.3.1. During the Check Inspection the serviceable condition of
the rangefinder is checked as directed in Steps 1 through 7 in the
Table 9.1.
10.3.2. The check inspection scope is outlined in the Table 10.1.
If there is no available target with known distance to it, the
rangefinder is checked for proper functioning by measuring the
range to the same target three times. The rangefinder is
functioning properly, if the measurements differ within 5 m
maximum.
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Table 9.1, continued
7.4. To use the AI and tripod for observation, proceed as follows:
-
Arrange the tripod on selected site so that one leg aligns with
the ranging direction;
Items to check, test procedure
Technical requirement
-
Extend the telescopic legs at the desired length to achieve
maximum convenience for the observation.
Sensitivity, indexing uniformity and Send the unit for repair if even a
balance of the magnetic needle.
Proceed as directed under 7.6.2.
single requirement of 8.6.2. is not
satisfied.
In case you do not use the tripod proceed as follows:
AI azimuth and elevation adjustment If necessary, tighten bushings on
-
-
-
Unscrew the ball-mount seat from the tripod base;
Fit the stay block on to the wooden object and tighten it.
Install and level the AI using the ball-mount by turning AI in
ball-mount seat and putting the level bubble into the centre
of the ring marks.
knobs must not be loose.
knob end facets.
10. MAINTENANCE
-
-
Secure the AI by clamp.
10.1. Maintenance Organization and Procedure. General
Instructions.
10.1.1. This Section deals with the maintenance services
prescribed for the range finder, excepting the battery servicing
procedure. For the instructions on the battery service procedure,
refer to Section 15.
10.1.2. The range finder is serviced to ensure its operability and
readiness for operation.
The rangefinder is subject to timely full-scope servicing, unless
premature wear should occur resulting in shorter periods
between repairs.
Sliding the rangefinder along the AI bracket guides, fit the
AI clamp into the T-shaped opening in the rangefinder
bracket, and turn the handle of the clamp to lock the
rangefinder in this position.
7.5. Use the AI compass or the reference directional angle to
align the rangefinder with the base line.
7.5.1. To align the range finder with the base line, proceed as
follows:
-
-
Aim the rangefinder to the reference point;
Find the base reference (BR) from the formula:
10.1.3. While preparing for and carrying out the maintenance
services, observe the safety precautions as outlined in Section 6.
BR = α base – α ref ± 30.00’
where α base is the base line directional angle;
α ref is the directional angle of the given reference line.
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-
-
Rotate the azimuth dial to align the base reference value with
the zero wheel. Now the rangefinder is aligned with the base
line within 30.00 mils;
Turn the clamping handle to lock the azimuth dial in the
determined position.
9. SERVICEABILITY TEST
The principal tests to be performed on the range finder are listed
below.
Table 9.1
Items to check, test procedure
Technical requirement
Rangefinder completeness
Range finder is complete with all
components listed in Section 5
7.5.2. To orient the rangefinder by using the reference directional
angle, proceed as follows:
Rangefinder exterior
Exterior surfaces are clean and free
from cracks, dents and rust
Optical surfaces are free from
cracks, scratches, chips, dirt,
grease stains (exterior) and
condensed moisture (interior)
-
Aim the range finder to the reference point, which
directional angle is known;
Exterior of range finder optical
parts (to be checked visually).
Make sure that the unit is off!
-
-
Rotate the azimuth dial to set the reference directional angle;
Turn the clamping handle to lock the azimuth dial in the
determined position.
Dehydrator case of range finder
(to be checked visually)
Battery voltage. Proceed as
directed under 7.3.1
Silica gel is bluish in colour
With the rangefinder oriented, the measurements are taken from
the location point relative to the directional angle of the object
(reference object).
7.5.3. For the magnetic orientation of the rangefinder, proceed as
follows:
The red Low Battery indicator is
not lit in the left eyepiece of the
rangefinder
Illumination of range finder
Binocular reticle. Check that the
front cover of the rangefinder is
closed and set ILLUM. selector
switch to ON
Functioning of range finder.
Proceed as directed under 7.3.2.
Setting of zero elevation reference ER “O” error determined for
Binocular reticle is illuminated
-
Unscrew the plunger knob all the way out to release the
magnetic needle of the compass;
-
Turn the AI around the vertical axis to obtain precise
alignment of the index mark of the circle with the magnetic
needle;
Measured results are within 5 m of
predetermined range
Rotate the azimuth dial to set the magnetic azimuth index
correction.
(ER “0”). Proceed as directed
under 7.6.1.
vertical angle scale should be
calculated for the elevation
measurements.
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Plot the target on the map using the obtained rectangular
coordinates.
When using the compass to orient the rangefinder, keep in mind
that the indexing accuracy of the magnetic needle is affected by
the nearby iron or steel objects. The motor vehicles and similar
massive objects must be at least 10 m away, medium-size objects
(hammers, pliers, similar tools) must be at least 0.5 m away, and
small-size things (flashlights, knife, screwdriver, etc.) must be 20
cm away from the unit.
8.9. When using the rangefinder under the conditions of
insufficient light, set the ILLUM. selector switch to ON.
8.10. If a target is located against an intense background (bright
sky, sunlit snow or sand, etc.), the range display may indicate as
if more than one target is caught in the beam, and the range
indications may differ every time that MEASURE L button is
depressed. To eliminate the adverse background effects, the
frame of the binocular objective lens should be fitted with the
diaphragm 22 (Fig. 6) and secured by means of a pin and rubber
clamp on the case.
7.6. To check the range finder for proper operation when using
the AI and the tripod:
-
-
Check the AI zero elevation reference (ER "0");
Check the AI compass.
ER "0" is the setting of the elevation scale that corresponds to
the horizontal position of the range finder Binocular axis.
7.6.1. To check the zero elevation reference, proceed as follows:
Don’t use the diaphragm in low temperatures, in mist and limited
visibility conditions.
-
-
-
Stick a pole at 50 to 100 m away from the unit and mark it
with the rangefinder objective height above the ground level;
Aim the reticle crosshair to the mark and read the tilt angle
(A1);
swap the rangefinder and the pole positions, and apply
another mark to the pole in accordance with the new height
of the rangefinder objective;
-
-
Aim the crosshair to the new mark of the pole and read again
the tilt angle (A2);
find the ER "0" from the formula:
A1 + A2
ER "0" = ———— ,
2
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The A1 and A2 values are entered with their respective signs.
If the ER "0" value is other than zero, the respective correction is
to be taken into account while operating the range finder. The
error value is subtracted from the elevation measurement, if the
latter is positive, and added, if it is negative.
7.6.2. To check compass, set up the AI for operation. Then,
check the sensitivity and balance the needle.
For the purpose proceed as follows:
-
Mark numbers of the plotting board with respect to the
selected scale ( 1:25, 000 or 1:50,000) and the reference
point, observation post and target location;
Read the rectangular coordinates of the reference point from
the map and note them down on the plotting board or card;
Align the circular scale zero of the plotting board with the
zero wheel;
Use the reference grid of the plotting board to plot the
reference point on the circular scale in accordance with the
map coordinates;
Set the circular scale of the board to read the directional
angle as determined for the reference point from the
observation post;
Draw a vertical line from top downwards through the
reference point marked on the circular scale. See that the line
is parallel with the grid lines;
Use the rule to lay off the OP-to-reference point range on the
drawn line. Mark the obtained OP location point on the
circular scale;
Adjust the circular to read the directional angle as
determined for the target from the observation post;
Pass a vertical line from bottom upward through the OP
point in parallel with the grid lines on the circular scale;
Use the rule to lay off the OP- to-target range on the drawn
line. Mark the target location with a dot and symbol;
Setting the circular scale to zero, read the target and OP
rectangular coordinates off the board. Note down the
coordinates on the board or card;
-
-
-
-
-
-
Level the AI;
Release the needle;
Unbalance the needle by using a knife or a screwdriver.
-
-
-
To make sure that the needle is free from defects, check that:
- The needle oscillates in a smooth and uniform manner to
regain balance;
- The position of the needle end is the same as the mark when
the needle settles;
- The needle ends are leveled with the marked plates within ±
0.5 mm.
The compass requires triple checking. If even a single
requirement is not satisfied, the AI needs repair.
7.7. After the rangefinder check is complete, set the ON-OFF
and ILLUM. selector switches to the OFF position.
-
-
-
-
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-
Vertical angles up to 0.80 mils and elevation angles falling
within ± 0.40 mils may be read off the reticle with a
maximum accuracy of 0.05 mils.
-
8. OPERATING PROCEDURE
8.1. The rangefinder is designated to:
8.7. To determine the polar coordinates, proceed as follows:
-
-
-
-
-
-
-
Survey the ground;
Range fixed targets;
Range moving targets;
Take azimuth and magnetic azimuth measurements;
Take elevation and vertical angle measurements;
Find polar coordinates of targets and reference objects;
Convert the polar coordinates of the target and reference
object into rectangular coordinates, and find the target and
observation post coordinates from the predetermined
reference coordinates.
-
Use the compass to orient the Angular Mount as directed
under 7.5.3;
-
-
-
Aim the rangefinder to the object;
Read the azimuth of the object;
Range the object as directed under 9.3.
8.8. To convert the polar coordinates into rectangular
coordinates, proceed as follows:
-
-
Take out the coordinate converter from the case;
Release the clamp and detach the rule from the reverse side
of the plotting board;
8.2. To use the rangefinder for ground surveillance, aim it with
hands roughly on the desired object, and then adjust it fine by
rotating the azimuth and elevation knobs.
8.3. For ground surveillance do the following:
-
-
-
-
Determine the polar coordinates of the reference point and
the target as directed under 9.7 and note them down on the
plotting board or a special card;
Calculate from the determined magnetic azimuth Am of the
reference point and the target to find the directional angles,
reckoning in the compass correction ∆ A obtained from the
formula:
Set the ON-OFF selector switch to the ON position;
Aim the rangefinder on the target so that it is observed in the
central gap of the reticle as close as possible to its centre,
and the screening objects (bushes, trees, terrain elevations,
etc.), which are located near the target or partially mask it,
are outside the gap. Locate the target in the lower portion of
the gap, touching the bottom mark of the reticle;
Press the MEASURE 1 button, wait until the readiness
indicator comes on and release the button.
α = Am – ∆ Am
-
-
Read the compass correction ∆ Am of the map;
Note down the reference point target directional angles on
the plotting board of card;
-
-
Read the measured range. It will be displayed on the range
indicator for 3 to 5 seconds.
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If there is more than one target on the laser beam path (a wire in
front of a building), the decimal point is displayed in the least
significant digit position of the range indicator. In this event, the
rangefinder may be used to range the first or the last target by
pressing the MEASURE 1 or MEASURE L button respectively.
If it is possible, repeat the target ranging once or twice. If the
obtained range is correct, the results will not differ by more than
5 m.
Binoculars rangefinder unit LRB 20000 in packing case
8.4. To range a moving target, do the following:
-
-
-
-
-
Observing the target through the binocular eyepiece, track
the target elevation and azimuth;
Press the MEASURE 1 button (or MEASURE L button,
when engaging the last-in-range target);
As the readiness indicator comes on, aim the range finder at
an off-set point forward of the target;
As the target aligns with he reticle gap, release the
MEASURE 1 (MEASURE L) button;
Read the measured range.
8.5. To take azimuth and magnetic azimuth measurements,
proceed as follows:
-
-
-
-
Align the vertical mark of the Binocular objective reticle
with the right-hand object;
Read and note down the azimuth dial indication accurate to
1/10 of a division on the wheel;
Align the vertical mark of the reticle with the left-hand
object and read the angle again;
Determine the measured angle by subtracting the second
value from the first one.
1 - Angular mount; 2 - Cover; 3- Rechargeable battery 10D-
0,55С-1; 4 - SPTA package; 5 - Cover; 6 - Cable; 7 - Protection
device; 8 - Charger; 9 – Operation manual; 10 - Rangefinder in
case
Fig.7
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Add 60.00 mils to the first value if it is exceeded by the second.
During the magnetic orientation of the rangefinder, the angles
read off the azimuth dial are the magnetic azimuth values
(bearings) of the target (or reference object). You should count
the magnetic azimuth correction (see 7.5.3.).
Individual SPTA set
For better precision, take 3 or 4 angle measurements to
calculate the mean value. After each measurement of the
magnetic azimuth value (bearing), destroy the rangefinder
orientation and aim it again.
An azimuth or magnetic azimuth measuring under 0.80 mils
may be read off the reticle with a maximum accuracy of 0.05
mils (small division value of the reticle is 0.05 mils, large
division value is 0.10 mils).
8.6. To measure vertical and elevation angles, proceed as
follows:
1 - Rechargeable battery 10D-0,55С-1; 2 - Fuse link VP1-1 1,0А
250 V; 3 - Pencil; 4 - Sealing ring; 5 - Eye shield; 6 - Framed
lens; 7 - Cloth; 8 - Eraser; 9 - Wrench; 10 - Coordinate
converter; 11 - Charging device; 12 – Protection device; 13 -
Indicating silica gel; 14…18 - Cables; 19 - Membrane; 20, 21 -
Cover; 22 - Diaphragm; 23 - Brush No. 7 (made of synthetic
fibre)
-
-
-
Align the horizontal mark of the rangefinder reticle with the
upper object;
Read the vertical angle scale using the wheel and note down
the value;
Rotate the azimuth and elevation knobs to align the
horizontal mark of the reticle with the lower object and read
the scale again;
-
Determine the vertical angle by subtracting the smaller value
from the greater one if both have the same sign (are of the
same color), or by adding them, if the signs are opposite.
Fig. 6
The elevation is measured with reference to the Binocular axis of
the rangefinder. Hence, the rangefinder should be thoroughly
levelled before taking the elevation measurements.
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Laser rangefinder binoculars LRB 20000
Tripod mount
1 - Mounting head; 2 - Base; 3 - Legs; 4 – Nut
Fig. 5
1 - Rangefinder; 2 - Angular Mount; 3 - Tripod
Fig. 1
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Angular Mount
Rangefinder rear view
1 - Adjustment knob; 2 - Lever; 3 - Bracket; 4 - Retainer; 5 -
Scale; 6 - Framed lens; 7- Adjustment knob; 8 - Compass; 9 -
Nut M8; 10 - Framed lens; 11 - Knob; 12 - Support; 13 - Level
UK-10; 14 – Azimuth circle; 15 – Body
1 - Housing; 2 -MEASURE 1 and MEASURE L buttons; 3 -
Belt; 4 - Panel; 5 - ILLUMINATION toggle switch lever; 6 -
Binocular eyepiece; 7- Screw; 8 - Indicator eyepiece; 9 - Plug
МР-1; 10 - Battery section cover; 11 - ON-OFF toggle switch
lever
Fig. 4
Fig. 2
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Fig. 3. Schematic diagram
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