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26 | English
Always replace all the batteries at the same time. Only use batteries from the same man-
ufacturer and which have the same capacity.
u Take the batteries out of the measuring tool when you are not using it for a pro-
longed period of time. The batteries can corrode and self-discharge during pro-
longed storage.
Operation
Start-Up
u Never leave the measuring tool unattended when switched on, and ensure the
measuring tool is switched off after use. Others may be dazzled by the laser beam.
u Protect the measuring tool from moisture and direct sunlight.
u 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 ambi-
ent temperature before putting it into operation. The precision of the measuring tool
may be compromised if exposed to extreme temperatures or variations in temperat-
ure.
u Avoid hard knocks to the measuring tool or dropping it. Always carry out an accur-
acy check before continuing work if the measuring tool has been subjected to severe
external influences (see "Accuracy check of the measuring tool", page33).
Switching On and Off
To switch on the measuring tool, briefly press the on/off button (8) or the measuring
button (4). When switching on the measuring tool, the laser beam is not switched on.
To switch off the measuring tool, press and hold the on/off button (8).
If no button on the measuring tool is pressed for approx. five minutes, then the measur-
ing tool will automatically switch itself off to preserve battery life.
Measuring process
Once switched on, the measuring tool is in the length measurement
function. You can set other measuring functions by repeatedly press-
ing button (2) (see "Measuring functions", page27).
Once the measurement function is selected by pressing the measur-
ing button (4), the laser beam is switched on.
1 609 92A 4P0 | (18.01.2019) Bosch Power Tools
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