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12. DISTANCE MEASUREMENT
An REM measurement is a function used to measure the height to a point where a target cannot be directly
installed such as power lines, overhead cables and bridges, etc.
The height of the target is calculated using the following formula.
Ht = h1 + h2
h2 = S sin
θ
z1 x cot
θ
z2 - S cos
θ
z1
• The items displayed as <Null> in the coordinate data are excluded from the calculation (Null is different from
0).
PROCEDURE
1. Set the target directly under or directly over the object and
measure the target height with a tape measure etc.
2. After inputting the target height, accurately sight the target.
“
”
Press
[MEAS]
in page 1 of OBS mode to carry out
measurement.
The measured distance data (SD), vertical angle (ZA), and
horizontal angle (HA-R) are displayed.
Press
[STOP]
to stop the measurement.
3. In the second page of OBS mode screen, press
[MENU]
,
then select "REM".
12.6 REM Measurement
Zenith
Zenith
REM
Area calc.
S-O Line
S-O Arc
PT to line
P-Project