8 Commissioning
30
Vapors
(1) Transmitter
(2) Shut-off fitting
2A shut-off fitting to process
2B shut-off fitting for test connection or vent screw
(3) Pressure line
(4) Shut-off valve
(6) Blow-down valve
(9) Pressure equalization reservoir
Pressure
application
Initial state: all valves closed
Operate the shut-off fittings in the following order:
✱
Open shut-off valve (2B).
✱
Apply a pressure that corresponds to the measurement start to the
transmitter, via the test connection of the shut-off fitting (2).
✱
Check measurement start and correct it, if required
➩
"Output current, measurement start and end", page 38.
✱
Close shut-off valve (2B).
✱
Open shut-off valve (4) on the pressure tapping.
✱
Open shut-off valve (2A).
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