Emerson Rosemount OCX8800C Manual page 52

Configuration and start-up
April 2023
WARNING
During the calibration verify function, the analog output signals track the oxygen
and combustibles readings.
To avoid a potentially dangerous operating condition, remove the transmitter from the
automatic combustion control loop before performing the calibration verify procedure.
3.7.1 Verify calibration with the Field Communicator - HART
Procedure
1. Use the Field Communicator or AMS software to access the HART menu.
2. From the DEVICE SETUP menu, select DIAG/SERVICE.
3. From the DIAG/SERVICE menu, select CALIBRATION.
4. From the CALIBRATION menu, select CAL VERIFY. Select Verify Calibration. From this
3.7.2 Verify calibration with the Field Communicator
-
FOUNDATION
Procedure
1. Use the Field Communicator or AMS software to access the Fieldbus menu.
2. From the TRANSDUCER block menu, select METHODS.
3. Set the Mode to OOS (out of service) before starting the calibration verify process.
4. From the METHODS menu, select OCX Cal Verify. From this menu, select the
52
menu, select the functions as follows:
• Flow High O Gas: Flows the high O
2
calibration setup.
• Flow Low O Gas: Flows the low O
2
calibration setup.
• Flow High COe Gas: Flows the COe test gas for the time specified in the
calibration setup.
• Purge Gas: Initiates a delay for the specified purge time before oxygen/
combustibles readings are considered valid.
Note
A purge automatically follows a gas flow.
Fieldbus
™
functions as follows:
• Flow High O Gas: Flows the high O
2
calibration setup.
• Flow Low O Gas: Flows the low O
2
calibration setup.
• Flow High COe Gas: Flows the COe test gas for the time specified in the
calibration setup.
• Purge gas: Intiates a delay for the specified purge time before oxygen/
combustibles readings are considered valid.
test gas for the time specified in the
2
test gas for the time specified in the
2
test gas for the time specified in the
2
test gas for the time specified in the
2
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