Post-Installation Test UMSITRPDS3-1
November 2005
5-6
5.5.1.1 Measuring Gases
Operate the shutoff fittings as described below. Refer to Figure 5-2 to identify the valve being
manipulated.
1. Close all valves.
2. Open the test connection shutoff valve (2B).
3. Apply to the transmitter, through the test connection shutoff fitting (2), a pressure corresponding to
zero.
4. Check zero and correct if necessary.
5. Close the test connection shutoff valve (2B).
6. Open the shutoff valve (4) on the pressure tap.
7. Open process shutoff valve 2A.
Transmitter above the pressure tapping point
(normal arrangement)
Transmitter below the pressure tapping point
(exception)
1
2
3
Transmitter
Shutoff fitting
A - Shutoff valve to the process
B - Shutoff valve for test connection or
venting screw
Pressure pipe
4
5
6
7
Shutoff valve
Shutoff valve (optional)
Condensation vessel (optional)
Drain valve
FIGURE 5-2 Measuring Gases
To Next Page
Loading...
Need help?
General
