www.kolidainstrument.com
61
Atmospheric correction
PPM
Method
②
: Turn on Sensor, press F3 READ to read temperature and pressure
value automatically, then calculate PPM out.
Prism constant
Enter the prism constant correction value for current prism
Distance mode
Press
or
to select from following modes:
Fine repetition, Fine N-time, Fine single, tracking
Note:
Temperature input range: -99.9°
～
+99.9° (Foot length 0.1
‵
)
Air pressure input range: 0
～
1066hPa (Foot length 0.1hPa) or 0
～
1066mmHg(Foot length
0.1mmHg)or 0
～
1066 inchHg (Foot length 0.1inchHg)
Prism constant input range: -99mm
～
+99mm (Foot length 0.1mm)
12. OFFSET MEASUREMENT
·
Offset measurements are to perform in order to find a point where a target can not be installed
directly or to find the distance and angle to a point which can not be sighted. It is possible to find the
distance and angle to a point you wish to measure (target point) by installing the target at a location
(offset point) a little distance from the target point and measuring the distance and angle from the
surveying point to the offset point.
·
The target point can be found in the three ways explained below:
Diagram
Method
1. Single distance offset measurement
·
When the offset point is positioned to the left or right of the
target point, make sure the angle formed by lines connecting
the offset point to the target point and to the instrument station
is approximately 90°.
·
When the offset point is positioned in front of or behind the
target point, install the offset point on a line linking the
instrument station with the target point.
