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


FEMA differential pressure monitors are suitable for monitoring and controlling differential pressures, flow monitoring and automatic control of filter systems. A double chamber system with stainless steel bellows of Perbunan diaphragm detects the difference between the two applied pressures. The desired switching pressure is continuously adjustable within the ranges mentioned in the product summary.
All differential pressure monitors can also be used in the vacuum range.
The switching differential is not adjustable.

Datasheet
User Manual

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
Protection class IP65
Housing material rugged housing of seawater resistant aluminium die casting GD Al Si 12
Media temp. -20 … 60 oC
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 … 60 oC
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

 

 

Pressure adjustment range Switching differential Max. pressure Sensing element material Type
bar bar bar
0.004 … 0.025 0.002 0.5 Perbunan + Aluminium EX-DDCM252
0.01 … 0.06 0.015 1.5 Perbunan + Aluminium EX-DDCM662
0.02 … 0.16 0.02 3 Perbunan + Aluminium EX-DDCM1602
0.1 … 0.6 0.035 3 Perbunan + Aluminium EX-DDCM6002
-0.1 … 0.4 0.15 15 1.4305 + 1.4571 EX-DDCM014
0.2 … 1.6 0.13 15 1.4305 + 1.4571 EX-DDCM1
1 … 4 0.2 25 1.4305 + 1.4571 EX-DDCM4
0.5 … 6 0.2 15 1.4305 + 1.4571 EX-DDCM6
3 … 16 0.6 25 1.4305 + 1.4571 EX-DDCM16
Description Additional Product Type
Syphon for high temperature, steel, U-shape (for more accessories, see Accessories for Pressure Switches / Transmitters) U430B  








Technical advice: 03303 / 50 40 66

Technical advice for this product


    In accordance with the General Data Protection Regulation (GDPR), we are obliged to inform you about the collection of data. We meet this obligation by referring to our privacy notice.



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

    FEMA differential pressure monitors are suitable for monitoring and controlling differential pressures, flow monitoring and automatic control of filter systems. A double chamber system with stainless steel bellows of Perbunan diaphragm detects the difference between the two applied pressures. The desired switching pressure is continuously adjustable within the ranges mentioned in the product summary.
    All differential pressure monitors can also be used in the vacuum range.
    The switching differential is not adjustable.

    Datasheet
    User Manual

    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
    Protection class IP65
    Housing material rugged housing of seawater resistant aluminium die casting GD Al Si 12
    Media temp. -20 … 60 oC
    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 … 60 oC
    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

     

     

    Pressure adjustment range Switching differential Max. pressure Sensing element material Type
    bar bar bar
    0.004 … 0.025 0.002 0.5 Perbunan + Aluminium EX-DDCM252
    0.01 … 0.06 0.015 1.5 Perbunan + Aluminium EX-DDCM662
    0.02 … 0.16 0.02 3 Perbunan + Aluminium EX-DDCM1602
    0.1 … 0.6 0.035 3 Perbunan + Aluminium EX-DDCM6002
    -0.1 … 0.4 0.15 15 1.4305 + 1.4571 EX-DDCM014
    0.2 … 1.6 0.13 15 1.4305 + 1.4571 EX-DDCM1
    1 … 4 0.2 25 1.4305 + 1.4571 EX-DDCM4
    0.5 … 6 0.2 15 1.4305 + 1.4571 EX-DDCM6
    3 … 16 0.6 25 1.4305 + 1.4571 EX-DDCM16
    Description Additional Product Type
    Syphon for high temperature, steel, U-shape (for more accessories, see Accessories for Pressure Switches / Transmitters) U430B  








    Technical advice: 03303 / 50 40 66

    Technical advice for this product


      In accordance with the General Data Protection Regulation (GDPR), we are obliged to inform you about the collection of data. We meet this obligation by referring to our privacy notice.



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