Alarm Memory; Care And Maintenance - Abus RWM150 Manuel Utilisateur

Display and functions
Alarm mute function
Once the device is in alarm mode, the alarm sound
can be deactivated for 9 minutes by pressing the
test / stop button.
If the mute function is active, the red LED will
flash once approximately every 10 seconds.
If, after this 9-minute mute period, fire smoke
is still detected in the smoke measuring chamber,
the acoustic alarm will sound again.
Only activate the alarm mute function when you are
absolutely sure that you can exclude a cause of fire!

Alarm memory

This function allows a smoke alarm that has previously been triggered and then
reset to normal operating mode to be identified.
In this case, the green LED flashes three times in 1.3 seconds. This is repeated every
43 seconds. This display stops after 16 hours to save the battery and is not activated
if the battery is already low.
By pressing the test/stop button, an alarm which has previously gone off can still be
identified: the alarm then beeps three times for one second.
The alarm memory function can be deactivated by pressing the test/stop button.
”
– 32 –

Care and maintenance

Care and maintenance
What to do in case of false alarm?
Possible causes of false alarm include: Welding and cutting, soldering and other hot
work, sawing and grinding, dust created from building work, e.g. cleaning, extreme
electromagnetic effects, changes in temperature which lead to condensation in the
alarm as well as small insects and pollen.
• If a false alarm is being caused by work close to the device, it should be
temporarily covered up or removed. Upon completion of the work, it is
imperative, however, that the device be returned to its original opera-
ting state and be checked!
Cleaning
The operation of every installed smoke alarm must be regularly checked and
kept safe through maintenance measures in accordance with German DIN 14676
application standards. This includes an inspection at least once every 12 months ±
3 months, including maintenance and checking the performance of the warning
signals. The results and measures taken should be documented accordingly.
• Dust covered alarms must be cleaned. Dust deposits in the alarm's air
vents can be sucked up or blown out.
• Dust can be removed with a brush if required.
• The surface area can be cleaned with a slightly damp and soapy cloth.
• Take care that no liquids get into the apparatus!
Do not clean device in a dishwasher!
• Do not use any sharp, pointed, abrasive or caustic cleaning products,
chemicals or hard brushes!
– 33 –
GB