Starting Operation

Special Safety Instructions for Operation

Protect the measuring tool from moisture and direct sunlight.

Do not expose the measuring tool to any extreme temperatures or variations in temperature. For example, do not leave it in a car for extended periods of time. In case of large variations in temperature, allow the measuring tool to adjust to the ambient temperature before putting it into operation. The precision of the measuring tool may be compromised if exposed to extreme temperatures or variations in temperature.

Avoid substantial knocks to the measuring tool and avoid dropping it. Damaging the measuring tool can cause accuracy to be compromised. Calibrate the measuring tool after it has been dropped or subjected to heavy impact. Check the laser line by comparing it with a known horizontal or vertical reference line.

Switching On/Off

To switch on the measuring tool, briefly press the On/off button (1). The light-up ring (2) flashes green three times when the battery has sufficient capacity.

The laser line lights up immediately after switching on the measuring tool.

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, briefly press the on/off button (1) again.

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 no button on the measuring tool is pressed for approx. 15 minutes and the housing is not rotated, the measuring tool will automatically switch off to preserve battery life.

Levelling a Laser Line

When attaching the measuring tool vertically, the laser line can either be levelled horizontally to the right (90°) or left (270°), or vertically upwards (0°) or downwards (180°). If the measuring tool is not aligned vertically, the laser line can only be used as a non-levelled reference line.

The levelling status is indicated by means of the light-up ring (2):

Light-up ring	Levelling
Red	The laser line is not levelled. Turn the housing of the measuring tool in the required direction in order to level the laser line.
Yellow (only one corresponding half of the light-up ring is displayed)	The laser line is close to being completely horizontal or vertical. To precisely adjust the laser line, turn the housing in the direction of the lit half of the light-up ring.
Green	The laser line has been successfully levelled either horizontally or vertically.
Light-up ring off, laser line lights up	The laser line is no longer levelled because the measuring tool is tilted more than 10°. You can attach the measuring tool to any surfaces (e.g. ceiling, floor) and use the laser line as a non-levelled reference line.