Emerson Rosemount OCX8800A - Page 62

4. From the CALIBRATION menu, select CAL VERIFY. Select Verify Calibration.
From this menu, select the functions as follows:
• Flow High O2 Gas: Flows the high O
2
test gas for the time specified in the
calibration setup.
• Flow Low O2 Gas: Flows the low O
2
test gas for the time specified in the
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.
3.7.2 Verify calibration with the Field Communicator -
FOUNDATION
™
Fieldbus
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
functions as follows:
• Flow High O2 Gas: Flows the high O
2
test gas for the time specified in the
calibration setup.
• Flow Low O2 Gas: Flows the low O
2
test gas for the time specified in the
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.
Note
A purge automatically follows a gas flow.
3.7.3
Verify calibration with the LOI
Procedure
1. Use the Z pattern to enter the LOI menu tree.
2. From the CALIBRATION menu, select Cal Verify.
3. From the Cal Verify menu, select the functions as follows:
Configuration and start-up Manual
December 2022 00809-0500-4880
62 Emerson.com/Rosemount