Leaving Meter Run In-Service Procedure (Senior Fitting) - ABB XSeries G4 6200 User Manual

4.17.2 Leaving meter run in-service procedure (senior fitting)

1) Place the G4 EX in HOLD by entering Calibration mode. This enables
2) Replace the orifice plate.
3) Exit Calibration mode. This releases HOLD of the SP, DP and Temperature.
4) If the user wants to end the current log record and begin a new record with
5) In PCCU32, enter the new orifice plate diameter.
2104349 rev. AD
constant SP, DP and Temperature values to be used, while the orifice plate
is being changed.
the new orifice size (as stated in API 21.1), they need to first move into
Entry mode within PCCU32. Next, select the preferred measurement tube,
and then click on the Commands tab. Change the value for the Reset Log
Period to Yes. This forces a new record to be written based on the old
orifice plate size. Additionally, if the user wants to simultaneously zero the
accumulated volume, they can use the Reset Volume command instead.
It is recommended to perform either the Reset Log Period or the Reset
Volume command to enhance the audit trail created by the event (API 21.1
requirement).
At the top of the Volume Calculation Period, the G4 EX will
perform calculations based on the new orifice plate diameter
for part of the period after the log was reset.
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