Opticron Ranger 800 User manual

Ranger 800 Laser Rangefinder
Operation Manual
Ranger8000219

The Opticron Ranger 800 is a simple to use, precision-made optical laser range-finding device can be used as a
range-finder for activities such as wildlife management, site surveying and walking. To ensure that you get the
best from this product, please read the following guide carefully.
Introduction
The Opticron Ranger 800 is a range measurement device which uses a 6x magnification monocular to enable the
user to accurately pin-point targets at a distance of up to 800 metres. When not being used for range measurement,
the device can be used simply to observe distant objects. Unlike some laser range-finding devices, the Ranger 800
can be set to measure distance in either metric or imperial units.
When used in range-finding mode, the Ranger 800 finds and measures the distance to a target very quickly. It uses
an internal liquid crystal display (LCD) to show the user where to aim the laser and the distance measured. This
measurement is then retained for reference.
When used in advanced slope mode the Ranger 800 measures the elevation angle, linear distance, horizontal
distance and height/depth of the target on the LCD display.
Packing List
Your new Ranger 800 is quality checked before being packed. However, please check the following list to ensure
that you have received all the items. If not, please contact us at the address given.
Ranger 800 laser range-finder Wrist carrying strap
Soft carry case with shoulder strap/belt loop User guide
CR2 lithium battery Lens cleaning cloth

Ranger 800 Specifications
Specifications are subject to change without notice.
Product Code 41203
Maximum distance measurement Large target: 800 metres* / Small target: 250 metres*
Minimum distance measurement 5 metres
Angular range +/- 60 degrees (1 degree intervals)
Laser type Class 1M 905 nm eye safe
Objective lens size 21mm
Magnification 6x
Field of view (FOV) 7.5°
Exit pupil diameter 3.5mm
Dioptre adjustment range +/- 4
Operating temperature range -20°C to +50°C
Range measurement accuracy +/- 1 metre (1 yard)*
Battery type CR2 3V Lithium battery
Net weight 180 grammes
Dimensions (WxHxD) in millimetres 40x72x108
* The actual maximum distance measured and the accuracy of the measurement will depend on the size, colour
and reflectance of the target object. Other factors such as the time of day, weather conditions and the elevation
of the target from the user will also have an impact on the range and accuracy of the device

Ranger 800 Product Features
The illustration below shows the main features of the Ranger 800.
The Ranger 800 has two operating buttons marked
and ‘Mode’. Depending on the status of the device,
these buttons will power on the device, set the
operating modes and capture the measurement data.
The eyepiece is used to view the internal LCD screen
and to observe the target. The eyepiece also acts as
a focusing ring and has a quarter turn of travel (+/- 4
dioptre adjustment). Adjust the focus until both the
LCD screen and the target are in focus. Note: If the
LCD screen is out of focus but the target is in focus, the
target distance is too close to be measured.
Using a Class 1M eye-safe laser beam, the Ranger 800
emits short bursts of laser energy from the emitting
lens. These are then reflected from the target and returned to the measuring lens. In use, the device should be held
upright so that the emitting lens is above the measuring lens. Note: the laser beam is not visible to the naked eye.
The battery compartment can be accessed by unscrewing the compartment lid. It houses a 3V CR2 non-
rechargeable lithium battery. Using the pin scanning/vibrate feature will reduce battery life. When replacing the
battery, do not over-tighten the battery compartment cover.
Eyepiece and
focusing ring
Battery
compartment
Power button
Mode button
Laser emitting /
objective lens
Laser measuring
lens

Ranger 800 LCD Screen Features
The internal LCD screen shows a selection of the following icons and text depending on
the mode in use:
At the top of the display is a low battery indicator. This will show when the
battery needs replacing. The accuracy of the measurements taken and the
range of the device will be reduced if used whilst the low battery indicator is
showing.
The indicates that the device is in slope mode and after measurement the
angle of elevation in degrees is shown to the right of this symbol.
The centre of the display has a crosshair-like display to assist the user with
accurately positioning the laser beam on the target object. The centre of the
target should be positioned in the small box at the centre of the four lines for
best results.
The linear range measured is shown using up to three digits. This is the straight line
distance from the range-finder to the target along the line of sight. If a measurement cannot be made, either
because the object is too far away or is too small or dark to reflect the laser beam, the display will show four
dashes (- - - -). The unit of measure is shown to the right of the distance as M (metres) or Y (yards).
The Ranger 800 is accurate to within plus or minus one metre at any distance so will provide greater accuracy for
targets that are further away.
When in slope mode, the height/depth is shown as well as the unit of measure and is indicated by the label High.
Similarly, the horizontal distance to the target is shown below the height/depth and is labelled Level.
YM
High
Level
Y
Y
M
M
SCAN 88
888.8
I888
I888

Operating The Ranger 800
Power on the device by briefly pressing the power button, marked . When first powered on the LCD will be
displayed as shown:
To toggle between normal and slope modes, briefly press the
‘Mode’ button.
Note: The best measurement results will be obtained when
measuring large, bright and highly reflective objects.
Small, dark objects will be difficult to range-find over a
long distance. For example, a large object such as a white
wall or light-coloured tree could be targeted at up to the
device’s maximum range of 800 metres with excellent
accuracy. Smaller objects are best targeted at a range of up
to 250 metres. Weather conditions will also affect the maximum
range and accuracy of measurement. Overcast but clear days will give
the best results whilst a very sunny or very foggy day will reduce range and accuracy. The minimum distance that
can be measured is 5 metres (5.5 yards).
To begin measurement in either normal or slope mode, briefly press the power button again. The distance
measured will be shown on the LCD along with the unit of measure.
To switch between measuring in metric (metres) and imperial (yards) units, press and hold the ‘Mode’ button for 2
seconds. The bottom right of the LCD will show ‘M’ or ‘Y’. To switch back again, press and hold the ‘Mode’ button
for a further 2 seconds.
The Ranger 800 will power off automatically if not used for 20 seconds.
M
348
Normal Mode Slope Mode
150Y
250M
87Y
173Y
Y
High
Level
Y
Y
SCAN 30
173
87
150
M
High
Level
M
M
SCAN 15
259
67
250
67M
30°
15°
259M

In slope mode, the display will show the linear distance to the target along with the angle of elevation, height and
horizontal distance.
Examples of slope measurement above and below the height of the range-finder are shown below:
150Y
250M
87Y
173Y
Y
High
Level
Y
Y
SCAN 30
173
87
150
M
High
Level
M
M
SCAN 15
259
67
250
67M
30°
15°
259M

General Product Care and Use Guidelines
The battery should be removed from the battery compartment if the device is not going to be used for any length of
time i.e. more than one month.
The lens surfaces should not be touched with bare hands. To remove dust use an aerosol or manual air blower.
The lenses can be cleaned using the included lens cloth. Should this become soiled or worn out, please use any
spectacle or other optics cleaning cloth (these are available from all good optics resellers and Opticron supplies
its own brand binocular cleaning cloths to those resellers). DO NOT USE ABRASIVE OR CAUSTIC CLEANING
AGENTS OR MATERIALS.
The Ranger 800 contains a laser device and there are no user-serviceable parts inside. As such, the product casing
should not be opened except by trained service personnel. Please see the Warranty and Repair section below.
The Ranger 800 is robust and therefore will withstand the typical bumps and knocks that, for example, a mobile
phone would get in normal everyday use. Avoid dropping the device on hard surfaces and take care not to crush
the device if it is packed in a golf bag, rucksack or case.
The device is rainproof but should not be submerged in water nor be used for extended periods in torrential rain.
Avoid subjecting the Ranger 800 to extreme changes of temperature. Also, when taking the Ranger 800 from a very
cold e.g. outdoor environment to a warmer environment (such as indoors), the lenses may mist over. Once the
device has warmed up (or cooled down), the misting will disappear.
Warranty and Repair
Your Opticron Ranger 800 laser range-finder is covered by an 2 year return to base, parts and labour warranty.
In the unlikely event that your product suffers a fault during the warranty period, please contact Opticron on
01582 726522 for advice on how to return it for repair.
Address: Opticron, Unit 21, Titan Court, Laporte Way, Luton, Bedfordshire, LU4 8EF, UK
Phone: [phone] Email: [email protected]