Vigilant
MX1-Au
Operator Manual
Document: LT0439
Page
23 October 2018
Issue 1.73
1-18
The detector has sensed a phenomenon different to what it is
designed to detect, but one that causes similar effects to the detector.
For example: steam or insects setting off a photoelectric detector,
dust from building works, a nail being driven through detector cabling,
or radio interference affecting a detector.
The actions to reduce the occurrence of both causes are generally the
same and involve:
Removing the unwanted effect that is causing the detector to operate.
Repositioning the detector so it is not influenced by the effect.
Changing the settings of the detector so it is more resilient to the
effect.
Changing the detector type to one that is not sensitive to the effect,
but is still suitable for the environment and the risk.
Some precautions building owners/occupiers can take to reduce the
possibility of nuisance alarms include:
If structural repairs or maintenance are to be performed in the
building, ensure that any work that generates dust or smoke is only
carried out after the relevant zones have been disabled. Smoke
detectors should be fitted with temporary covers to prevent dirt from
accumulating. Once the work is complete, remove the covers, reset
any alarms detected while the zone was disabled, and then enable
the zone.
Ensure that kitchens, bathrooms, and shower rooms are fitted with
exhaust fans, and that if provided with closing doors there is pressure
relief to allow effective extraction when the doors are closed.
Detectors should not be located where they can be exposed to dust,
heat or other phenomena that can adversely affect them. If they are
no longer in a suitable position or are not of a suitable type for the
location, contact the service company to discuss relocation or
changing the detector type.
If the building has long-term occupants, contact a "nuisance alarm
reduction" compliant service company to conduct training in how to
minimise nuisance alarms (contact the Fire Protection Association
Australia for a list of suitable companies).
