7
Note: Battery in metal casing will diminish compass accuracy. Non-
magnetic batteries should be used for the utmost compass performance.
The unit is fully operational when battery voltage is higher than 6.3V. A
‘LOW BATTERY’ warning is displayed when battery voltage falls
below 6.5V.
Measurement procedure
When the Rangefinder is off the LCD is blank. To activate it, press and
hold for one second A button (6, Fig.1). At start the unit comes into
Ready to Measure mode indicated by the word ‘READY’ on the display
visible through the eyepiece.
Pressing A button (6, Fig. 1) in Ready to Measure mode initiates
measurement procedure. The result of measurement is displayed in a
form that depends on the measurement parameters (see Setup Mode).
If results of measurement are unreliable four dashes (‘----‘) will be
displayed in the area (4, Fig. 3). For successful measurement the target
must be at least 20 m away.
If more than one parameter is chosen to measure, e.g. distance and
azimuth, the results will replace each other on the display every half a
second.
If the target is located below the unit the result of vertical measurement
(elevation or height) will be preceded with minus (“-“) sign.
If results of angular measurements can not be interpreted by the unit an
error codes 444 (for azimuth) or 99 (for elevation) will be displayed.
Repeat the measurement. If error codes appear again – reboot the unit by
switching it off and on again.
Maximum distance
Maximum measurement distance depends on target reflectivity, weather
and other conditions. In good conditions highly reflective target can be
measured up to 4000 meters.
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 impulses.
