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Step 6
XFC/XRC Setup
NOTE: Connecting to the G4 meters with PCCU32 will require version
7.05.5 or later.
6A
Connect the laptop running PCCU32 to the unit via local serial,
USB or Ethernet. For more information on making a local
connecting to the flow computer, see PCCU32 Connectivity
later in this guide.
6B
Set the date/time, ID, location and AGA setup using the Entry
mode in PCCU32.
6C
In Calibration mode, verify the registers for static pressure,
differential pressure and temperature. After completing this
task, select RTD Installed, uncheck Use Fixed TF and adjust
RTD Bias if a temperature standard is used. Perform as found
calibration checks.
6D
If calibration is needed, calibrate the static pressure first and
then differential pressure using a deadweight tester or
acceptable standard. Insure that both orifice taps are closed
and bypass valves are open during the AP calibration to avoid
a false DP. Make sure there are no leaks in the manifold or
test equipment. Perform as left calibration checks, as needed.
6E
Place the unit online. To avoid inducing toggle and/or a
calibration shift, close the vent valve, open the bypass valve
and then open the orifice tap valves slowly (high pressure side
first). Once both orifice tap valves are fully opened, the bypass
valves can be closed.
6F
Verify that the unit is calculating volume correctly. Watch the
display or look at the Current Values in Entry mode of
PCCU32. Collect data, and review the event and characteristic
files to insure all parameters are set properly.
6G
Optional – When the user has verified that all setup and
calibration is complete and the unit is online calculating
volume, it is recommended that a Reset Volume command be
sent using PCCU. This allows the unit to have what might be
considered an official starting point for good live data. The
Reset Volume will be recorded in the Events file to mark the
date and time.
8
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