Topcon GPT-2009 Marine Instruments User Manual


 
10 SET AUDIO MODE
10-1
10 SET AUDIO MODE
The light acceptance quantity level for the EDM (SIGNAL), the atmospheric correction value (PPM),
correction value of prism constant (PSM) and correction value of non-prism constant (NPM) are
displayed in this mode.
When reected light from the prism is received a buzzer sounds. This function is good for easy
collimation when the target is difficult to find.
Operating procedure Operation Display
1 Press the [F4] key to get the soft key page 2 in the
distance measurement mode or page 3 in the
coordinate measurement.
[F4]
2 Press the [F3](S/A) key to change to set audio
mode.
The display indicates correction value of prism
constant (PSM), non-prism constant (NPM)
atmospheric correction (PPM) and reection light
level (SIGNAL).
[F3]
When receiving reected light, buzzer sounds.
It is possible to stop the sound, see Chapter 16 “SELECTING MODE” .
The [F1] to [F3] keys are used for setting atmospheric correction and prism constant.
To return to normal measuring mode, press the [ESC] key.
HR: 120°30'40"
HD* 123.456 m
VD: 5.678 m
MEAS MODE NP/P P1
OFSET S.O S/A P2
PSM:0.0 PPM 0.0
NPM:0.0
SIGNAL:[ ]
PRISM PPM T-P –––