User guide

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Pressure Switches with ATEX Approval
http://products.ecc.emea.honeywell.com/europe
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For monitoring and controlling pressures in Ex-applications in devices of the chemical industry and in
the process engineering as well as wherever the pressure of aggressive liquids and gases has to be
monitored. Degree of Ex-protection: Ex II 2 G D EEx de IIC T6 IP65 T80
o
C.
Fixed pressure hysteresis
Differential pressure switch for Ex-applications. Degree of Ex-protection: Ex II 2 G D EEx de IIC T6 IP65
T80
o
C.
For flow monitoring and differential pressure control of steam, gas, hot/cold water and automatic
checking of filter plant.
Pressure switch (Ex) for aggressive liquid, gas (Ex-DNS)
Kind of pressure overpressure, relative
Pressure connection internal thread G1/4, external thread G1/2
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. -15 ... 60
o
C
Media temp. limit temperatures up to 80
o
C are allowable for short periods. 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 -15 ... 60
o
C
Ambient temp. limit at temperatures below 0
o
C, ensure that no water condensation can
arise in the sensor and in the switching device
Switch function/capacity SPDT Microswitch 250 Vac; capacity 2 A inductive, 3 A resistive
Certificates ATEX-approval No. PTB 02 ATEX 1121
Sensing element material 1.4571
Pressure adjustment range Switching differential Max. pressure Type
bar bar bar
0,04 ... 0,25 0,03 6 EX-DNS025
0,1 ... 0,6 0,04 6 EX-DNS06
0,2 ... 1,6 0,06 6 EX-DNS1
0,2 ... 2,5 0,1 16 EX-DNS3
0,5 ... 6 0,15 16 EX-DNS6
1 ... 10 0,3 16 EX-DNS10
3 ... 16 0,5 25 EX-DNS16
Syphon for high temperature, steel, U-shape (for more accessories, see Accessories
for Pressure Switches / Transmitters)
U430B
Differential pressure switch (Ex) for liquid, gas (Ex-DDCM)
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. -15 ... 60
o
C
Media temp. limit temperatures up to 80
o
C are allowable for short periods. Higher
temperatures are possible, provided that the limit is safeguarded by
suitable measures (e.g. water tube trap, see Accessories for Pressure
Switches / Transmitters)