General Care; Low Battery Indicator; Error Messages - Opti-Logic XT Series Manual

3.0

General Care

The Opti-Logic Laser Rangefinder is a sophisticated electronic and optical instrument, built to withstand a
reasonable amount of handling with the same amount of care as any other optical or electronic device, such as a
camera, binoculars, riflescope, telescope, etc.
performance. Use a soft, clean non-abrasive cloth to clean the lenses. Cotton swabs work well. Never use paper or
other abrasive materials. Dampen a cloth with either a very mild soap solution or clean water. Gently rub the lenses
with a dampened cloth. DO NOT SCRUB THE LENSES. After cleaning the lenses, gently wipe the lenses off
with a soft dry cloth. NEVER use petroleum products or chemicals to clean the lenses or any parts. Use the same
procedure to clean the exterior. Although the Opti-Logic XT-Series Tilt-Compensated Laser Rangefinder has been
designed to withstand normal outdoor use, some common sense precautions should be observed. NEVER subject
your laser rangefinder to shock, high temperature, or harmful chemicals or gases. If the Rangefinder is not going to
be used for long periods of time, remove the battery and store in a cool, dry place. DO NOT use chemicals or
solvents to clean the Rangefinder. Chemicals, insect repellents and solvents can damage the plastic housing and
lenses of the Rangefinder.
4.0

Low Battery Indicator

When the battery voltage becomes too low, the instrument may act erratically or cease to function. The low battery
indicator will appear in the display before this occurs. The battery should be replaced as soon as possible after the
indicator is displayed.
5.0

Error Messages

When a new battery is installed in the XT-Series Tilt-Compensated Laser Rangefinder, diagnostic checks are
performed by the onboard computer. These tests check the basic operation of the Rangefinder after a new battery is
installed. During the normal diagnostic test the display cycles from "000" - "999" and shows all of the LCD display
elements. If the unit is unable to obtain a range or angle measurement, the letters "ERR" will appear on the display.
If the error message persists,
A. Remove the battery for several minutes and then reinstall (it may be necessary to quickly short the
internal battery terminals for 1 second).
B. Make sure the battery terminals are in contact with the internal metal battery clips.
C. Check battery voltage or try a new battery.
Note 1: If the Rangefinder displays an incorrect distance, make sure that the "Red Dot" in the viewfinder is
hitting the object. Try aiming the Rangefinder at a nearby reflective target such as a street sign or
automobile license plate to verify alignment.
Note 2: If the Rangefinder shows a distance of "0", the Rangefinder is hitting an object at a distance that is
less than the minimum distance. Try aiming the Rangefinder at a more distant object to verify operation.
Keeping the lens clean will insure optimum operation and