Topcon GPT-2000 用户手册

2-9

   2 PREPARATION FOR MEASUREMENT

Laser plummet option will help you to center the instrument easily onto the measurement point. 
There are two ways to turn on/off of laser plummet option as follows.

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The laser plummet will be turned off automatically after 1 to 99 minutes (Default :3 minutes). It is also 
possible to stop the auto-cut off function. 
Refer to Chapter 16 “SELECTING MODE”  to change the time or to invalidate the function.

Press the [F4]  key to get the  function page 2.

[F4]

Press the [F1](TILT) key.
In case ON is already selected, the display shows 
tilt correction value.

[F1]

Press the [F4](L.PL) key.
By pressing the [F4](L.PL) key, the laser plummet 
will be turned On / Off alternately.

[F4]

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Symbol mark while the laser is emitting.
The following symbol mark will appear at the right side of the second line. 

Press the [MENU] key.

[MENU]

Press the [F4](P

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) key to get the menu on page 2.

[F4]

Press the [F3] key.

[F3]

Press the [F1] or [F2] key to turn on or off the laser 
plummet option.

[F1] or [F2]

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Symbol mark