Newcon Optik LRB 20000 User Manual

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  
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  
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  
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.  
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  
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.  
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).  
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.  
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:  
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.  
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.  
-
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  
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;  
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  
- 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.  
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.  
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.  
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  
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.  
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.  
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.  
-
-
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.  
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
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;  
-
-
-
-
-
-
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.  
-
-
-
-
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;  
-
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.  
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  
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.  
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  
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  
Fig. 3. Schematic diagram  

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