Rtc (Real Time Clock) Battery; Theft Alarm System; Activating The Theft Alarm System; Applications Of The Theft Alarm System - Bosch GRL500 H Professional Original Instructions Manual

OBJ_BUCH-1960-005.book Page 39 Wednesday, March 28, 2018 11:41 AM
After automatic shutdown:
– If applicable, wait until the measuring tool and the laser re-
ceiver are back in the operating temperature range.
– If required, reposition the measuring tool and switch it on
again.

RTC (Real Time Clock) Battery

If the calibration interval indicator 35 flashes for
approx. 10 s after the tool is switched on, the R TC
battery and the integrated battery are weak. The
calibration interval will no longer be monitored.
– Contact an authorised service agent for Bosch
power tools.

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.

Activating the Theft Alarm System

The default setting in the delivery condition is
[Theft alarm system deactivated].
– Press the theft alarm button 22 while the meas-
uring tool is switched on.
The theft alarm system is activated.
The theft alarm indicator 36 and the theft alarm
LED 4 light up.
The setting for the theft alarm system is saved when the tool
is switched off.
To deactivate, press the theft alarm button 22 while the
measuring tool is switched on.

Applications of the Theft Alarm System

Application Security mechanism
Measuring tool Alarm system activated
switched on.
Theft alarm indicator 36
or lights up continuously
Measuring tool in sleep Theft alarm LED 4 flash-
mode. es slowly on the measur-
ing tool
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.
Bosch Power Tools
English | 39
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.
All settings are reset to the default settings when
switching the tool on (see "Switching On",
page38).
The theft alarm system is activated again.
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.
Note: The sensors for a calibration warning (calibration inter-
val, storage temperature, shocks to the measuring tool) are
active after the tool is started up for the first time.
Display Indications Cause
Calibration warning
lights up The calibration interval (every
12 months) has expired.
Calibration interval in-
dicator 35 lights up
lights up The measuring tool was stored
outside of the storage temper-
ature range.
Out-of-temperature-
range indicator 34
lights up
lights up The measuring tool suffered a
severe shock (e.g. impact on
the floor after a fall).
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.
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