Product Manual

38
Compensator Calibration
To calibrate the compensator, the instrument needs to be in
perfect balance. After calibration, the compensator sensor
will automatically adjust and allow for changes in that balance
caused by the presence or the absence of an internal battery.
To minimize imbalance in the instrument:
• An internal battery must be present in the battery
compartment.
• The instrument handle must be attached.
• The instrument will automatically position the telescope
for best balance.
To start the compensator calibration:
1. Level the instrument. The instrument will automatically
check if the compensator is within range before the
calibration is started.
1. Press A to scroll to Compensator calib. and then press
C.
2. Follow the instructions in the display.
Note - Spectra Geospatial recommends that you regularly
carry out a compensator calibration, particularly when
measuring during high temperature variations and where
the highest measurement accuracy is required.
3. The calibration process involves the instrument
automatically reading the compensator value at a series of
predetermined positions through the full rotation of the
instrument. The process takes approximately one minute
to complete. During the process the instrument should be
on a stable platform, free from vibration and untouched by
the user.