Topcon GPT-8005A User Manual

11 SETTING ATMOSPHERIC CORRECTION
11-2
4
Input Pressure value, and press [ENT].
[Example] Pres. :1020.0hPa.
The display returns previous mode.
*1) *2)
Enter
value
[ENT]
The display returns STAR key menu.
*1) Range : Temp. -30.0 °C to +60.0 °C (0.1 °C step)
Pres. 560.0 to1066.0hPa (0.1hPa step) , 420.0 to 800.0mmHg (0.1mmHg step)
16.5 to 31.5inHg (0.1inHg step)
*2)When the atmospheric correction value, which is calculated from the input temperature and pressure
values, exceeds the range – 999.9ppm, the operating procedure returns to step
3
automatically. Input
values again.
26.0 °C
5.1ppm
+14.0 mm
1020.0hPa
23.6 mm
Operating procedure Operation Display
1
Press STAR ( ) key.
GPT-8000A series should be changed the
menu of star key mode to page three by
pressing the [F6] key twice.
[]
2 P
ress the [F3](GPT-8000 series) or [F2](G
PT-
8000A series) key.
Current setting value is displayed.
[F3]
or
[F2]
3
Move the cursor (>) to PPM setting by
pressing [F5](→) key.
Move
cursor
4
Enter atmospheric correction value and press
[E
NT] key. *1)
Enter
PPM
[ENT]
The display returns previous mode.
*1) Input range : -999.9mm ~ +999.9mm, 0.1mm step
2002-08-10 14:30:40
1
↓
GPT-8000 series
NP/P
2002-08-10 14:30:40
3
↓
GPT- 8000A series
20.0 °C
5.1ppm
0.0 m
m
1012.0hPa
23.6 mm
PPM setting
5.1ppm
0.0 mm
23.6 mm
• How to Set the Atmospheric CorrectionValue Directly
Measure the temperature and air pressure to find atmospheric correction value (PPM) from the chart
or correction formula.
[Example] Atmospheric correction value

Topcon GPT-8005A Specifications

General

Brand	Topcon
Model	GPT-8005A
Category	Measuring Instruments
Language	English