EX-DDCM252

Honeywell Differential pressure switch (Ex-d) for liquid, gas (Ex-DDCM)

Differential pressure switch for Ex-applications. Degree of Ex-protection: Ex II 2G Ex d e IIC T6 Gb and Ex II 1/2D Ex ta/tb IIIC T80 oC Da/Db
For flow monitoring and differential pressure control of steam, gas, hot/cold water and automatic checking of filter plant.
Kind of pressure: differential pressure, relative
Pressure connection: internal thread G1/4
Electrical connection: terminal connection M16x1,5
IP class: IP65
Housing material: rugged housing of seawater resistant aluminium die casting GD Al Si 12
Media temp.: -20...60C
Media temp. limit: Higher temperatures are possible, provided that the limit is safeguarded by suitable measures (e.g. water tube trap, see Accessories for Pressure Switches / Transmitters)
Ambient temperature: -20...60C
Ambient temp. limit: at temperatures below 0 oC, ensure that no water condensation can arise in the sensor and in the switching device
Switch function/capacity: SPDT Microswitch; capacity 2 A inductive, 3 A resistive
Certificates: SIL2 according IEC 61508-2
IBExU12ATEX1040 according to ATEX 2014/34/EU
IECEx IBE 14.0077
Medium type: liquid or gas
Ex class: Ex-d
Scale calibration: falling pressure


Pressure adjustment range: 0.004...0.025bar
Switching diff.: 0.002bar
Max. pressure: 0.5bar
Sensing element material: Perbunan + Aluminium