Procedure
A Pressure transmitter above the pressure sam‐
pling point
B Pressure transmitter below the pressure sam‐
pling point
① Pressure transmitter ⑥ Shut-o valve
② Shut-o valve ⑦ Shut-o valve (optional)
③ Shut-o valve to process ⑧ Condensate vessel (optional)
④ Shut-o valve for test connection
or for bleed screw
⑨ Blowout valve
⑤ Pressure line
1. Open the shut-o valve for the test connection ④.
2. Via the test connection of the shuto valve ②, apply the pressure corresponding to the lower
range value to the pressure transmitter.
3. Ensure that the lower range value corresponds to the desired value. Otherwise, correct the
value.
4. Close the shut-o valve for the test connection ④.
5. Open the shut-o valve ⑥ at the pressure tapping point.
6. Open the shut-o valve for the process ③.
Commissioning
6.3 Application examples
SITRANS P320/P420
46 Compact Operating Instructions, 01/2021, A5E38874562-AC
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