Starting Operation

Protect the measuring tool from moisture and direct sunlight.

Do not expose the measuring tool to any extreme temperatures or fluctuations in temperature. For example, do not leave it in a car for extended periods of time. If it has been subjected to significant fluctuations in temperature, first allow the measuring tool to adjust to the ambient temperature and then always carry out an accuracy check before continuing work see Accuracy Check of the Measuring Tool.
The precision of the measuring tool may be compromised if exposed to extreme temperatures or fluctuations in temperature.

Avoid substantial knocks to the measuring tool and avoid dropping it. Always carry out an accuracy check before continuing work if the measuring tool has been subjected to severe external influences see Accuracy Check of the Measuring Tool.

Switch the measuring tool off when transporting it. The pendulum unit is locked when the tool is switched off, as it can otherwise be damaged by big movements.

Switching On/Off

To switch on the measuring tool, slide the on/off switch (12) to the On position (for working with the pendulum lock) or to the On position (for working with automatic levelling). As soon as it is switched on, the measuring tool emits laser beams from the outlet apertures (1).

Do not direct the laser beam at persons or animals and do not stare into the laser beam yourself (even from a distance).

To switch off the measuring tool, slide the on/off switch (12) to the Off position. The pendulum unit is locked when the tool is switched off.

Never leave the measuring tool unattended when switched on, and ensure the measuring tool is switched off after use. Others may be blinded by the laser beam.

If the maximum permitted operating temperature of 40 °C is exceeded, the tool shuts down to protect the laser diode. Once it has cooled down, the measuring tool is operational again and can be switched back on.

Deactivating the automatic shut-off function

If no button on the measuring tool is pressed for approx. 30 min, the measuring tool will automatically switch itself off to preserve battery life.

To deactivate the automatic shut-off function, hold down the laser mode button (4) for at least 3 s when switching on the measuring tool. The laser beams will flash briefly after 3 s if the automatic shut-off function is deactivated.

To activate the automatic shut-off function, switch the measuring tool off and on again (without holding down the laser mode button (4)).