User guide

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Pressure Switches with ATEX Approval
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Vacuum switches for Ex-applications. Degree of Ex-protection: Ex II 2 G D EEx de IIC T6 IP65 T80
o
C.
For monitoring vacuum of non-aggressive liquids and gaseous media.
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; capacity 2 A inductive, 3 A resistive
Certificates • ATEX-approval No. PTB 02 ATEX 1121
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
Syphon for high temperature, steel, U-shape (for more accessories, see Accessories
for Pressure Switches / Transmitters)
U430B
Vacuum switches (Ex) liquid, gas (Ex-VCM)
Kind of pressure vacuum, 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
Pressure adjustment range Switching differential Max. pressure Sensing element material Type
mbar mbar bar
-15 ... 6 2 1 Perbunan + 1.4301 EX-VCM4156
-250 ... 100 25 1,5 Copper + Brass EX-VCM301
-250 ... 100 45 3 1.4104 + 1.4571 EX-VNM301
-1000 ... 100 45 3 Copper + Brass EX-VCM101
-900 ... 500 50 3 Copper + Brass EX-VCM095
-1000 ... 100 50 6 1.4104 + 1.4571 EX-VNM111
Syphon for high temperature, steel, U-shape (for more accessories, see Accessories
for Pressure Switches / Transmitters)
U430B