JUMO dTRANS p20 - Pressure Measurement Setup

5 Mounting
32
5.6 Measuring the relative or absolute pressure
Gases
Pressurization
Start position: all valves closed
Operate shut-off valves in the following order:
1. Open shut-off valve (4) on the pressure relief support.
2. Open shut-off valve (2 A).
3. Note down the pressure value and mA value displayed on the device.
4. Close shut-off valve (2 A).
5. Open shut-off valve (2 B).
6. Enter the same pressure value via the shut-off valve (2) test connection on the device.
7. Compare the pressure value and mA value displayed on the device with the values noted under 3.
Correct the device as required, see chapter 7.3.2 "The parameter level", Page 51.
8. Close shut-off valve (2 B).
9. Open shut-off valve (2 A).
Transmitter above the pressure sensing point
(normal arrangement)
Transmitter below the pressure sensing point
(exception)
(1) Transmitter (2) Shut-off valve
2 A shut-off valve for processing
2 B shut-off valve for test connection
(3) Pressure pipe (4) Shut-off valve
(5) Shut-off valve (optional) (6) Condenser vessel (optional)
(7) Drain valve
2
1
3
4
2A
2B
5
2
1
6
3
4
2A
2B
7