Checking The Instrument Constant - Nikon DTM-302 Series Instruction Manual

6 Checking and Adjustment
– To set parameters on the instrument, press
IIf ACV, ACH, X, or Y is out of range, OVER is
displayed. Press any key to return to the first
observation screen.

Checking the Instrument Constant

The instrument constant is a numerical value used to automatically correct for the
displacement between the mechanical and electrical centers when measuring
distances. The instrument constant is set by the manufacturer before the instrument
is shipped. However, to ensure the highest operational accuracy, we recommend that
you check the instrument constant several times a year.
164 Total Station DTM-302 Series Instruction Manual
OK
[ENT] or the softkey.
6.1