Bosch GLM 20 Instrucciones De Funcionamiento página 12

When no button on the measuring tool is pressed for approx. 5
minutes, the measuring tool automatically switches off to save
the batteries.
"Err" occurs when trying to hold a
measurement that is out of range or
measurement cannot be read correctly by tool.
The unit of measure can be changed any time for display of
the measured value, even for already measured or calculated
values.
Switch off the measuring tool. Press the measuring button 1
and hold it down. The display will alternately show three units
of measure. When the desired setting is displayed, release the
measuring button 1. The setting is saved.
General Information
The reception lens 7 and the laser beam outlet 8 must not be
covered when taking a measurement.
Measurement takes place at the center of the laser beam, even
when target surfaces are at a slope.
Press the "HOLD" button 1 once more to
stop the measuring procedure again. The
laser beam is switched off and the HOLD
indication appears on the display. The
previous measuring value is displayed in
the top line. The current measuring value
is displayed in the bottom line, but is no
longer continuously updated.
Changing the Unit of Measure
Working Advice
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