Topcon GTS-230 Series, Instruction Manual

Page: 122 / 163

12-2
12 SETTING ATMOSPHERIC CORRECTION
●
How to Set the Atmospheric Correction Value Directly
Measure the temperature and air pressure to find atmospheric correction value (PPM) from the chart or
correction formula.
Operating procedure Operation Display
1
Press the [F3](S/A) key to set Set Audio Mode
from distance or coordinate measurement mode.
[F3]
2
Press the [F2](PPM) key.
Current setting value is displayed.
[F2]
3
Enter atmospheric correction value. *1)
Mode returns to Set Audio mode.
[F1]
Enter Data
[F4]
*1) Refer to Section 2.6 “How to Enter Alphanumeric characters”.
●
Input range : –999.9ppm to +999.9ppm,0.1ppm step
SET AUDIO MODE
PSM:0.0 PPM 0.0
SIGNAL:[
❙ ❙ ❙ ❙ ❙
]
PRISM PPM T-P –––
PPM SET
PPM : 0.0 ppm
INPUT ––– ––– ENTER