Chapter 5: Maintenance
42 LaserSense 100 Aspirating Smoke Detector Installers Handbook
If the self-monitoring feature of the system senses that the operation of the
detector head is outside its normal range, a trouble condition will be generated.
Cleaning the detector
The exterior of the detector should be cleaned as necessary. Clean the detector
with a damp (not wet) cloth. Do not use solvents as these may damage the front
panel label.
Caution: Do not use solvents to clean the detector. Use of solvents may cause
damage to the detector.
Replacing the dust separator cartridge
The only part that may require field replacement during servicing is the dust
separator (filter) cartridge.
After replacing the filter, the detector must be put into FastLearn mode to reset
the filter condition reading.
As dust contained in the dust separators may expose maintenance personnel to
a ‘Nuisance Dust‘ hazard as defined by the Control of Substances Hazardous to
Health (COSHH), it is strongly recommended that suitable masks and protective
clothing be worn when changing filters.
Note: Used dust separator cartridges are not intended for reuse and should be
discarded.
To replace the cartridge:
1. Remove the six attachment screws which fasten the unit’s front cover.
2. With the front cover removed, grasp the filter firmly and pull the filter out
(directly towards you).
3. Properly dispose of the used cartridge.
4. Insert the replacement filter cartridge such that the orientation of the Direction
of flow arrow printed on the cartridge corresponds to the arrow on the
“Direction of flow” label beside the filter slot.
5. Slide the cartridge all the way into place.
6. Replace the cover, and secure with all six fastening screws, and initiate a new
FastLearn routine.
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