5. CALIBRATION
Notice: A specific and precise collimator is required for calibrations.
Hold 0SET and press Power at the same time to turn on the theodolite, to
calibrate the i angle, which is referred to the vertical index difference.
Step 1: Rotate the theodolite to Face Left (Face 1), collimate the crosshair
center of a collimator and adjust the focus until it seems clearly. Press 0SET,
and it goes to Face Right (Face 2).
Step 2: Rotate the theodolite to Face Right (Face 2), collimate the crosshair
center of a collimator and adjust the focus until it seems clearly. Press 0SET.
The system will correct the error and return to the display of Face Left (Face 1).
However, if the error is too big to correct, an error code “E-20” will show. If so,
press V/% to return to calibration again, and repeat the above steps until the
error is corrected.
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