Newcon Optik LRB 7x50 User manual

Operation Manual
LRB 7x50
LASER RANGE FINDER BINOCULAR
105 Sparks Ave., Toronto, ON M2H 2S5

IMPORTANT INFORMATION
Read prior to activation
You have just purchased a sophisticated electro-
optical device that emits invisible laser radiation. To
operate it properly, please read this manual
carefully.
NEVER direct laser beam at the eyes of people
or animals
NEVER aim the unit at the Sun or bright sources
of light
NEVER subject the unit to impacts
NEVER transport the unit without its case
NEVER disassemble the unit. This may be
hazardous for you due to high voltage currents in
the system
ALWAYS keep the unit out of children’s reach
ALWAYS remove the battery when the device is
not in use for a long period
ALWAYS store in a dry place
Caution - use of controls or adjustments, or
performance of procedures other than those

specified herein may result in hazardous radiation
exposure
Caution - use of optical instruments such as
binoculars, loupes, mirrors, lenses, etc. with this
product increases risk of ocular damage.
Note: Avoid eye exposure to direct laser beam or
its close reflection
Prevent bright light from focussing through the
eyepiece

1
CONTENTS
1. BRIEF DESCRIPTION 2
2. DEVICE APPEARANCE 4
3. DELIVERY SET 7
4. SPECIFICATIONS 8
5. OPERATION INSTRUCTIONS 10
5.1. Installing the battery 10
5.2. Maximum distance 11
5.3. Distance Measurement 12
5.4. Mode selection 13
5.5. Additional display information 14
6. STORAGE AND MAINTENANCE 15
7. TROUBLESHOOTING 16
8. WARRANTY 18
9. CUSTOMER SUPPORT 20
10. QUALITY CERTIFICATE 21

2
CAREFULLY READ ALL THE
INSTRUCTIONS PRIOR TO USE!
FAILURE TO OBEY THE INSTRUCTIONS
WILL VOID THE WARRANTY AND MAY
CAUSE INJURY!
1. BRIEF DESCRIPTION
LRB 7x50 Laser Rangefinder Binoculars
(System) is an advanced laser range finder system
that enables instant distance measurements.
Outstanding optics provide a sharp, clear image
under any observation conditions.
The unit utilises time-of-flight method of distance
measurement. The System sends invisible, eye
safe laser pulses to the target. The returned pulses
are captured by the digital circuitry. The time
difference is used to calculate the distance to the
target.
The unit complies with CFR 21, Part 1040.10 and
Part 1040.11.

3
Key Features
Modern digital circuitry allows targeting through
most types of glass
Meters/Yards display
Last 10 measurements recall
Selectable reticle shape (-¦- or )

4
2. DEVICE APPEARANCE
1 – Eyepieces 2 – Objective lens
3 – Dioptric adjustment rings 4 – Mode button
5 – Action button 6 – Body of the device
7 – Rubberized grip
4
1
2
3
5
6
7
Fig. 1. Front view

5
8 – Interpupillary distance adjustment lever
9 – Model number plate
10 – Identification and certification label / battery
compartment cover (at the bottom):
10
Fig. 2 Rear view
9

6
Fig. 3. Liquid Crystal Display (LCD)
1 – Low battery indicator 2 – Reticle (either -¦- or )
3 – Units of measurement 4 – Measurement result
5 – Target quality indicator 6 – Laser active indicator
2
4
6
1
5
3

7
3. DELIVERY SET
Standard delivery set for LRB 7X50 includes:
- Device
- Carrying case
- Neck strap
- Cleaning cloth
- User’s manual
- Warranty card
- 9V battery
1 pc.
1 pc.
1 pc.
1 pc.
1 pc.
1 pc.
1 pc.

8
4. SPECIFICATIONS
Optics
Magnification 7x
Objective lens diameter 50 mm
Exit pupil diameter 7.1 mm
Field of view 5
Type of coating Fully multi-coated optics
Interpupillary distance 58-72 mm
Dioptre adjustment range ±4
Range Finder
Laser Class 1, eye safe, 905 nm
Measuring range 20 – 1,500 m
Accuracy 1 m
Meters / Yards display Yes
Last 10 measurements recall Yes
Reticle -¦- or 

9
Power
Battery 9V Alkaline
Battery capacity Min 5,000 measurements
(Continuous operation)
'Low Battery' indicator Yes
Environmental
Operational temperature
range
-25…+50oC
(-13…+122oF)
Storage temperature range -45…+65oC
(-49…+149oF)
Mechanics
Tripod thread ¼” x 20 TPI
Weight without battery 1.3kg
Dimensions 210x150x60 mm

10
5. OPERATION INSTRUCTIONS
5.1. Installing the battery
Unscrew the screw and open the battery
compartment cover (10, Fig.2)
Connect a battery to the battery snap and insert it
into battery compartment
Close the cover and tighten the screw.
The unit is fully operational when battery voltage is
higher than 7V. A ‘LOW BATTERY’ warning is
displayed when battery voltage falls below 7.2V.
After changing the battery, it is recommended to run
the CL (CLEAR) mode (refer mode selection
procedure) to clear the on-board memory. If this is
not done the recall function will not work properly.
The System should be powered with Alkaline or
Lithium batteries capable to sustain current drain up
to 150 mA.

11
5.2. Maximum distance
The maximum measuring range for most objects is
1512 meters. The maximum measured distance will
vary greatly depending on the reflectivity of the
target and weather conditions.
Target reflectivity depends on its color, surface
finish, size, shape, position in relation to the laser
beam, etc. Bright target colors are more reflective
than darks. A polished surface is more reflective
than a rough one. Larger targets reflect better than
small ones. Ranging a target perpendicular to the
laser beam provides better results than the one
positioned at a sharp angle to the beam.
Weather conditions that influence air transparency
(rain, fog, snow, mist) reduce maximum range.
Bright sunny days will reduce performance as well
as IR sun radiation may cover reflected laser pulses.
While the unit will measure through many glass
types, measuring through glass may reduce
accuracy.

12
Natural hand tremor decreases the accuracy of long
distance ranging. Using of a tripod is highly
recommended.
5.3. Distance Measurement
When the Rangefinder is off the LCD Display is
blank (transparent).
Pressing any of the operating buttons activates the
System and the Display. At start the System assumes
READY mode of operation and word READY
appears on the LCD.
Pressing Action button (5, Fig. 1) at this point
triggers a distance measuring, and the result will be
displayed (4, 3, Fig. 3).
If measurement is unsuccessful then four dashes
‘----‘will appear in the numerical area. For a reliable
measurement the target must be more than 20 m
away.

13
5.4. Mode selection
Pressing MODE button (4, Fig. 1) in READY mode
brings the System to mode selecting. Every pressing
of the Mode button brings the next mode name to
the LCD, so that user can scan through all available
modes. When new mode appears on LCD it flashes,
to select it press Action button.
The following sequence of modes is available:
Displayed
on LCD Function
YSelect Yards for distance measurement
M Select Meters for distance measurement
-¦- Reticle shape.
Reticle shape.

14
rEC1
Displays the last 10 measurement
results starting from the last one.
Results are numbered and displayed in
the following order: rEC1, distance 1,
rEC2, distance 2, …, rEC0, distance 0.
Press Action button to switch along this
string.
Last 10 measurements are kept in the
System even when it is off.
CL Clears results of all measurements.
The System keeps the selected parameters until they
are reset.
5.5. Additional display information
Laser active indicator (6, Fig.3) flashes, when the
unit emits laser radiation.
A LOW BATTERY pictogram appears on LCD
when voltage of the battery voltage drops below 7.2
volt. At this point the System is still fully functional
as it can operate at the voltage level above 7 volt.

15
6. STORAGE AND MAINTENANCE
The unit is a sophisticated precision optical
instrument equipped with laser and electronics.
Therefore, it should be handled with due care.
Keep away from direct sunlight.
Avoid impacts, jolts, dust, moisture, and sharp
changes of temperature.
Do not use the device at temperatures higher
than 50oC (122oF).
Do not touch optical surfaces. Doing so may
damage the anti-reflection coating.
Clean optical surfaces only with professional
camera lens cleaning supplies.
Clean the exterior of the unit with a soft clean
cloth.
Keep the unit away from heating appliances and
central heating.
Remove the battery when storing the device for
long time.
All repair works must be performed by an
authorized service only.

16
7. TROUBLESHOOTING
Ranging does not work. The display is transparent.
Check the charge of the battery. Replace it if it is
weak.
Ranging does not work. The display indicates
results of the last measurement.
Wait for 10 seconds until the display becomes
transparent, and press the Action button again.
Black dots are visible on LCD.
Liquid Crystal Display may have small black dots,
scratches and other blemishes inherited from the
manufacturing process. These flaws are strictly
regulated by number, area and location and do not
degrade the product's measurement capabilities.
Range measurement cannot be obtained.
Make sure that neither your hand nor finger is
blocking objective lens, laser emitting lens or
receiver lens.