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8024252/AE00/V1-0/2020-07| SICK
O P E R A T I N G I N S T R U C T I O N S | ZIRKOR200 Ex-D
Subject to change without notice
TECHNICAL DATA
13
13.1.5
Gas plans
Fig. 49: Gas plans
Pneumatic version for
instrument air
Pneumatic version with pumps
1
Pressure regulating valve
2
Throttle check valve
3
3/2-way solenoid valve
3a
3/2-way solenoid valve
4
Flow meter
A
Instrument air inlet
B
Test gas inlet
C
Test gas outlet
D
Reference air outlet
1
Filter
2
Throttle valve
3
Reference / test air pump
4
3/2-way solenoid valve
5
Flow meter
A1
Reference air inlet
A2
Test gas inlet
B
Test gas inlet
C
Test gas outlet
D
Reference air outlet