Topcon GPT-2000 Manuel D’Utilisation

   10 SET AUDIO MODE

10-1

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 reflected light from the prism is received a buzzer sounds.  This function is good for easy 

collimation when the target is difficult to find.

Press the [F4] key to get the soft key page 2 in the 
distance measurement mode or page 3  in the 
coordinate measurement.

[F4]

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 reflection light 
level (SIGNAL).

[F3]

●

When receiving reflected 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.

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