Siemens SITRANS P Manuel d'utilisateur télécharger pdf (Page 93)

UMSITRPDS3-1 Post-Installation Test

November 2010

5-7

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.

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 Condensation vessel (for vapor only)

FIGURE 5-3 Measuring Vapor and Liquid

1 2 ... 88 89 90 91 92 93 94 95 96 97 98 ... 221 222

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Siemens SITRANS P Manuel d'utilisateur Page 93