Theft Alarm System; Deactivating The Theft Alarm System; Indicators For Checking Calibration (Calibration Warning); Switching Off The Calibration Warning Indicators - Bosch GRL Professional 500 H Originalbetriebsanleitung

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Theft Alarm System

The system consisting of measuring tool and laser receiver
has two security mechanisms to help prevent theft:
– The measuring tool can only be operated using the laser re-
ceiver; there is no control panel on the measuring tool.
– Both audible and visual indications are given on the meas-
uring tool and on the laser receiver when the measuring
tool is moved away from the reference point.
The default setting in the delivery condition is
[Theft alarm system activated].
Application Security mechanism
Measuring tool Alarm system activated
switched on.
or
Measuring tool in sleep
mode.
Measuring tool Alarm system deactivated
switched off.
Theft alarm indicator 36 is not dis-
Laser receiver played
switched off and not in
Theft alarm LED 4 does not light up
the charging/storage
on the measuring tool
station 6.
If the theft alarm system is activated and the measuring tool
moves away from the current location for more than 5 s, the
alarm system will be triggered:
– An audio signal is emitted on the measuring tool and on the
laser receiver.
The A-weighted sound pressure level of the audio signal is
up to 110 dB(A) and cannot be adjusted using the volume
setting of the normal audio signal.
 Do not hold the laser receiver close to your ear! The
loud audio signal can cause hearing defects.
– All operating functions are locked.
– The theft alarm LED 4 on the measuring tool
flashes quickly.
– The theft alarm indicator 36 on the laser receiver
flashes.
– To switch off the triggered alarm, press the theft
alarm button 22.
The audio signal is switched off.
All operating functions are unlocked.
The theft alarm system is activated again.
– Press the On/Off button 17 to start the rotation
of the laser again.

Deactivating the Theft Alarm System

– Press the theft alarm button 22 while the meas-
uring tool is switched on.
The theft alarm system is deactivated.
The theft alarm indicator 36 and the theft alarm
LED 4 go out.
2 610 031 676 | (15.7.14)
Theft alarm indicator 36
lights up continuously
Theft alarm LED 4 flash-
es slowly on the measur-
ing tool
The setting for the theft alarm system is saved when the tool
is switched off.
To activate, press the theft alarm button 22 while the measur-
ing tool is switched on.
Indicators for Checking Calibration
(Calibration Warning)
If the calibration of the measuring tool has to be checked, this
is shown on the display of the laser receiver after switching on
by means of various indicators in combination with the "CAL"
indicator.
Display Indications
Calibration warning
lights up
Calibration interval in-
dicator 35 lights up
lights up
Out-of-temperature-
range indicator 34
lights up
lights up
Shock-warning in-
dicator 38 lights
up
The indicators for checking calibration are displayed for a
short time, then go out and are not displayed again until the
tool is switched on.

Switching Off the Calibration Warning Indicators

You can switch off the indicators until the cause of the calibra-
tion warning occurs again.
– Press the calibration button 25 for approx. 2 s
while the calibration warning is being displayed.
The indicators for checking calibration are not
displayed again until the cause of the calibration
warning occurs again.
Recommended procedure after an indication to check cal-
ibration
Step
1 Check levelling accuracy
2a Deviation is within the maximum permitted
limits of ±3 mm:
Switch off calibration warning indicators
2b Deviation is outside of the maximum per-
mitted limits of ±3 mm:
Calibrate measuring tool
3b Check levelling accuracy
Cause
The calibration interval (every
12 months) has expired.
The measuring tool was stored
outside of the storage temper-
ature range.
The measuring tool suffered a
severe shock (e.g. impact on
the floor after a fall).
See
page
42
38
43
42
Bosch Power Tools