Siemens SITRANS P500 Instrucciones De Operación página 25

Procedure
WARNING
Hot vapor
Danger of injury or damage to device.
⑥
If the shut-off valves
the pressure transmitter
Follow the specified procedure for commissioning.
•
WARNING
Hot vapor
Danger of injury.
You can briefly open the drain valves
Only open the drain valves
•
To commission the pressure transmitter for vapor, proceed as follows:
1. Open both the shut-off valves
2. Open the stabilizing valve
3. Wait until the steam in the differential pressure lines
4. Open the differential pressure valve
until air-free condensate escapes.
5. Close the vent valve.
6. Open the vent valve on the negative side of the pressure transmitter
bubbles.
7. Close the differential pressure valve
8. Open the differential pressure valve
9. Close the vent valve on the negative side
10. Open the differential pressure valve
11. Check and if necessary correct the zero point (4 mA) with a start of scale value of 0 bar.
The measuring result is only error-free if the differential pressure lines
the same temperature. The zero calibration must be repeated if required if these conditions are fulfilled.
12. Close the stabilizing valve
13. Fully open the differential pressure valves
14. You can briefly open the drain valves
15. Close the drain valve
SITRANS P500 with HART
A5E02344532-04, 12/2014
and the differential pressure valve
①
can be damaged by the flow of vapor.
⑦
to clean the line. Hot vapor can escape in the process.
⑦
briefly, and close them again before vapor escapes.
⑥
at the pressure tapping point.
②
.
③
and the vent valve on the positive side of the pressure transmitter
③
.
④
slightly, until condensate escapes without bubbles, then close it.
①
.
③
by rotating it in half a turn.
②
.
③
⑦
to clean the line.
⑦
before vapor escapes.
③
are both open and the stabilizing valve
⑤
and in the equalizing vessels
①
⑤
④
and .
⑧
has condensed.
slightly, until condensate escapes without
have equally high condensate columns with
②
is then opened,
①
slightly,
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