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11
Maintenance
FastSense 25 is a very low maintenance detection system. If required, external cleaning of the unit should be
performed using a damp (not wet) cloth. Do not use solvents as these may mar the front panel label. The only
part that may require field replacement during servicing is the dust separator assembly. The dust separator
condition can be checked using the Dust Separator test in the Miscellaneous tab of the remote software
‘Detector settings’ screen (see Section 3) which gives a percentage re
ading of dust separator efficiency. When
this level drops to 80% the detector will signal a fault and the dust separator will need replacing. To replace the
filter, simply remove the front cover and pull the filter out from the main unit. Slide the replacement filter in so
that the ‘Direction of flow’ arrow printed on the carton duplicates that on the ‘Direction of flow’ label beside the
filter slot.
As dust contained in the dust separators may expose maintenance personnel to a ‘Nuisance Dust‘ hazard as
def
ined by the ‘Control of Substances Hazardous to Health‘ (COSHH), it is strongly recommended that suitable
masks and protective clothing be worn when changing filters. Used separators are not intended for re-use and
should be disposed of.
11.1
Diagnostics
The remote control software includes a diagnostic function which carries out a number of checks to verify the
correct functioning of the detector. A good time to run these tests is as a part of planned maintenance. To call
up diagnostic mode, select the menu o
ptions “View > Diagnostics” or click on the symbol indicated below.
The software will then scan the loop for up to 127 detectors. For a single detector, wait until the first detector
has been identified and the window indicates that it is scanning for Detector 2, then press the Cancel button.
The following window appears:
Click on the list entry to highlight it and click on the “Diagnostics…” button. The soft
-ware will then commence
