98
8024250/18HT/V2-0/2020-12| SICK
O P E R A T I N G I N S T R U C T I O N S | ZIRKOR200 Ex-G
Subject to change without notice
13
TECHNICAL DATA
13.2.5
Technical specification for the gas supply
The oxygen measuring system uses the connected instrument air during the entire operat-
ing time to supply reference air and to supply test air (test gas 1) during adjustment or sys-
tem test.
6x1
1
2
3
6x1
6x1
3
1
2
6x1
A
B
D
C
B
A
6x1
1
2
3
6x1
6x1
3
1
2
6x1
A
B
D
C
B
A
Pneumatic version for
instrument air
Pneumatic version with pumps
1
Pressure regulating valve
2
3/2-way ball valve
3
Flow meter
A
Instrument air inlet
B
Test gas inlet
C
Test gas outlet
D
Reference air outlet
1
Pressure regulating valve
2
3/2-way solenoid valve
3
Flow meter
A
Instrument air inlet
B
Test gas inlet
C
Test gas outlet
D
Reference air outlet
Instrument air as reference air supply / test air supply
Specification:
According to ISO 8573-1 Class 2
(Particle size max. 1
μ
m,
particle density max. 1 mg/m³,
oil content max. 0.1 mg/m³,
pressure dew point max. -40 °C)
Constant 20.95 Vol. % O
2
Inlet pressure
2...10 bar
Flow volume:
Continuous maximum 40 l/h (for reference air supply)
180 l/h during adjustment