Prosense PQ Series Installation And User Manual page 10

Prosense PQD detectors comprises of the main parts as shown below:
Cover
Glass
Glass holder
O-ring
Main board
Grounding screw hole
Body
Mounting hole
Sensor entry
Sensor head body
Field cable entry x3
Sensor holder
Sinter nut
Sinter
Sensor head cover
Diagram 2: Exploded view of PQD detector
ATEX certified Sensor Head must be used in hazardous atmosphere.
According to the ATEX Directive 2014/34/EU the detector is an assembly consisting of three components (Sensor
Head, enclosure and cable gland), where all these three components are type approved according to ATEX
Directive 2014/34/EU and marked by the device category II 2G. Thus this detector is suitable to be operated in
hazardous areas with potentially explosive atmospheres of zone 1 and zone 2. The PQ series detector comprises
a gas sensor type Ex-proof (protection type flameproof enclosure db type).
PRS-UM-PQ-EN-Rev.05-18.06.2020 10