②Press the F3 (BS) key
③Enter backsight point name
*1 , press ENT key
④ Press the F4 (YES) key,
collimate the instrument and
press F4 (YES), INPUT BS
will be displayed.
⑤ Enter PCODE, R.HT as
above . *2
Press the F4 (MEAS) key
140
F3
ENT
F4
Enter PT #
F4
F4