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Stratos  HSSD-2  •  INSTALLER’S  HANDBOOK  •  Iss.  12
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. Used separators are not intended for re-use and should be 
disposed of.
The following illustration shows how the dust separator is replaced. Make sure to push 
the separator fully home, or the detector will fail to register its presence, and will con-
tinue to indicate Separator change. 
Open the front cover using the key provided, and locate the dust separator tab at the 
bottom right of the detector as shown. Remove the black end piece with the removal 
tab from the filter element and dispose of the element. Fit the new element into the 
plastic end piece and slide into the detector, The filter should be fitted with the legend 
‘IN’ towards the front of the detector. If the filter is inserted the wrong way up, the 
detector will not register its presence and the Separator change legend will stay on 
the display. When the replacement filter is fitted, the detector will automatically start a 
FastLearn routine.
New filterOld filter
Filter