Two-Prism Pole - Nikon DTM-502 Series Instruction Manual

3. Two-Prism Pole

Press the [O/S] key on the BMS and select [3] to get
to the 2-Prism pole function.
3
Sight the first prism and press the [MSR1] or
[MSR2] key. After taking a measurement, it
automatically proceeds to the second point
measurement.
Sight the second prism and press the [MSR1] or
[MSR2] key.
Input the distance between the second prism and the
target point. Distance between the first and the
second prism can be left blank if you don't need any
QA information.
Only when the P1-P2 distance is input, a QA screen
is displayed before the "Record PT" screen. The
input value and the measured distance can be
compared to confirm the accuracy of the
observation.
Press [OK] or [ENT] to record the point.
= Sample records in [O/S]
SS,14,0.0000,38.9200,271.0350,89.2630,11:04:15,DITCH
CO,2Prism O/S: P1-P2=
3-73
→
[3. 2Prism Pole] =
0.5090(
Input value
0.5060) P2-Tgt=
Measured value
0.5020