SITRANS P300 (7MF8.23.. 7MF8.24.. 7MF8.25..)
A5E03434759-01, 08/2011
19
Commissioning with steam or liquid
① Pressure transmitter
② Shut-off fitting
③ Shut-off valve to process
④ Shut-off valve for test connection or for bleed screw
⑤ Pressure line
⑥ Shut-off valve
⑦ Blow-out valve
⑧ Compensation vessel (steam only)
Figure 3 Measuring steam
Requirement
All valves are closed.
Procedure
To commission the transmitter for steam or liquid, proceed as follows:
1. Open the shut-off valve for the test connection
④.
2. Via the test connection of the shut-off module
②, apply the pressure corresponding to the start of scale value to the
pressure transmitter
①.
3. Check the start of scale value.
4. If the start of scale value differs from the value desired, correct it.
5. Close the shut-off valve for the test connection
④.
6. Open the shut-off valve
⑥ at the pressure tapping point.
7. Open the shut-off valve for the process
③.
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