GeoMax Zeta125 Manuel De L'utilisateur page 40

Laser beam
unstable and
spot size
changing
Resetting
Refraction can be the reason for:
• an unstable laser beam on the target.
• changes in the laser spot size.
Air turbulence in the pipe cause refraction. The effect occurs particularly, when
a wet or cold pipe is heated up quickly through the sunlight. The rising air
deflects the laser beam and causes a flicker.

Ventilate the pipe or place laser and target temporarily on top of the
pipe. When the pipe is dry or heated up to the ambient level, the laser
spot is stable again.
Line control adjustment - right/left movement
Press the right and left arrow keys on the keypad simultane-
ously for 2 seconds. The laser beam moves back to the centre
position automatically.
Entered gradient to 0.000%
Press the up and down arrow keys simultaneously.
Product Overview
Zeta125/ Zeta125s | 39
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