Measuring Vapor And Liquid - Siemens 7MF4033 series User Manual

UMSITRPDS3-1

5.5.1.2 Measuring Vapor and Liquid

Operate the shutoff valves in the following order. Refer to Figure 5-3 to identify the valves used in the
procedure.
1. Close all valves.
2. Open 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 shutoff valve 2B.
6. Open shutoff valve (4) on the pressure tap.
7. Open process shutoff valve 2A.
November 2005
FIGURE 5-3 Measuring Vapor and Liquid
1 Transmitter
2 Shutoff fitting
A - Shutoff valve to the process
B - Shutoff valve for test connection or venting
screw
3 Pressure pipe
4 Shutoff valve
5 Drain valve
6 Compensation vessel (for vapor only)
Post-Installation Test
5-7