The mode of detector may be:; Optical smoke only detector (sensitivity High, Normal or Low)
HPO smoke detector (sensitivity High, Normal or Low)
Heat only rate-of-rise (A1R) detector (no sensitivity selection)
Heat only fixed temperature 60oC (A2S) (no sensitivity selection)
Optical (sensitivity High, Normal or Low) combined with heat fixed temperature 60oC (A2S)
HPO (sensitivity High, Normal or Low) combined with heat fixed temperature 60oC (A2S)
These detectors are designed to comply with EN/IEC 60079-0:2006,
EN/IEC 60079-11:2007 and EN/IEC 61241-11:2006 for intrinsically safe apparatus; ATEX Code: Ex II 1GD
Cenelec Code: Ex ia IIC T5/Ex iaD 20 T100oC