Opti-Logic XL Series Manual

OPTI-Logic XL-Series Laser Rangefinder Manual
Operating Instructions for Models 120XL, 400XL, 600XL, and 800XL
The Opti-Logic XL-Series Laser Rangefinder is an easy-to-use, electronic instrument designed for hunting, utilities,
construction, and many other distance measurement applications. The XL-Series Laser Rangefinder allows rapid,
accurate determination of distance to an object in a matter of seconds using one button operation and "Red-Dot"
technology for easy sighting. The Opti-Logic Laser Rangefinder is one of the lightest, most compact devices of its
kind. This product is designed for years of trouble-free operation and is proudly made in the USA.
1.0 Product Description and Features
Viewfinder:
Range Button:
Display:
Speaker Icon:
Low Battery:
Automatic Timeout:
2.0 Basic Operation
A. Hold the instrument an inch or two from your eye and aim at the object through the viewfinder.
B. Press and hold the "Range" button. A "Red Dot" will appear in the viewfinder. Place the "Red Dot" on
the target.
C. Release the button and maintain aim on the target momentarily. The "clicking" sounds indicate that
the laser is hitting the target. Like a Geiger counter, stronger signals produce more rapid clicking. The laser
does not fire until the button is RELEASED.
D. Read the distance after the audible tone is heard. (In "stealth mode" there will be no clicking and the
distance silently displays after the "Red Dot" goes out).
2.1 Distance Measuring with Time-of-Flight Rangefinders
The Opti-Logic XL-Series Laser Rangefinder emits invisible, eye safe, pulses of infrared light. Distances are
determined by reflecting the laser beam off an object and measuring the round-trip time-of-flight of the laser beam
to and from the object. The laser beam emitted by the Rangefinder is in the form of a vertical stripe of invisible
light, which enhances the Rangefinder's ability to hit thin vertical targets. When aiming at horizontal surfaces or
terrain, the range and accuracy of the instrument can be increased by turning the instrument on its side, in the same
fashion that you would rotate a camera to change from a landscape to portrait format.
The XL-Series Laser Rangefinder incorporates a unique "Lock and Load" feature that simplifies the task of hitting
targets in the presence of background objects. Simply depress the "Range" button and aim the Rangefinder using the
"Red Dot" aiming aid in the viewfinder. The laser is fired AFTER the button is released, which provides time to
properly aim the Rangefinder and minimizes the chance of hitting unintended objects. When the Rangefinder laser
beam hits a target, a clicking sound is produced to provide audible feedback to make it easier to acquire your target.
The rate of clicking is faster for brighter, closer objects, much like a Geiger counter. To improve the accuracy of the
Look through the viewfinder window and aim the Red Dot at an object.
Push the "Range" button to select modes or to activate the Red Dot; Release to
take distance measurements.
The Opti-Logic 120XL rangefinders are factory programmed in either feet (FT),
meters (M), or yards (Yd). All other models are User Programmable to read in
either Ft, M, or Yd.
The speaker icon indicates that the speaker is activated to produce a tone after
each measurement.
Replace the battery when the Low Battery symbol is displayed constantly.
To save batteries, the instrument will automatically power down after about 7
seconds.