Topcon Marine Instruments GPT-2000 Manuel D’Utilisation

   11 SETTING THE PRISM / NON-PRISM CONSTANT VALUE

11-1

The prism constant value of Topcon is set to zero.  When using prisms other than Topcon’s,  it is 
necessary to set the prism constant correction value of that specific prism. 
Once you set the correction value for prism constant, it is retained after power is OFF.

Note:

Confirm the non-prism constant value is set at 0 when measuring target such as walls in 
Non-prism mode.

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).

[F3]

Press the [F1](PRISM) key.

[F1]

Select prism or non-prism constant correction 
value by pressing the [

▼

] or [

▲

] key.

PRISM: Prism Constant Correction Value
N-PSM: Non-prism Constant Correction Value

 [

▼

] or [

▲

]

Input the Prism constant correction value. *1)
The display returns to set audio mode.

[F1]

Enter data

[F4]

*1) Refer to Section 2.6 “How to Enter Alphanumeric characters”.

●

Input range : –99.9mm to +99.9mm,0.1mm step

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