The shut-off valve must be closed during measuring operation to ensure condensate
drainage from the cooler.
Procedure
1.
Close the shut-off valve QM1 of the control gas connection.
5.5.17
Connecting the instrument air
Overview
5 ... 7 bar
2,5 ... 3 bar
1
Inlet of instrument air with zero gas quality
2
Connection to the measuring device (5 ... 7 bar)
3
Connection to the measuring device (2.5 ... 3 bar)
4
Pressure reducers (adjustable)
Prerequisites
•
The instrument air must meet the specifications.
Procedure
1.
Connect the conditioned instrument air to the main supply of the pressure gauge
at a pressure of 7 ... 10 bar.
2.
Adjust the primary pressure according to the Figure.
Related topics
•
Instrument air specification:
5
MOUNTING
42
O P E R A T I N G I N S T R U C T I O N S | MARSIC280
8021339/1CHC/V1-1/2021-07 | SICK
Subject to change without notice