6. Set the main Calibration screen to the following settings/values. Press OK
to continue.
• OCX: TAG NAME
• STATUS: Idle
• TIME REMAIN: 0s
• COe: 0.20 ppm, 0.00 mV
• OK/NEXT to Select
• ABORT/CANCEL to Exit
7. From the SELECT ACTION screen, select START/NEXT CALSTEP to continue
calibration, select ABORT CAL to abort calibration, or select EXIT CAL to exit
calibration. Select one item from the list and press ENTER.
• OCX: TAG NAME
• SELECT ACTION
— 1. START/NEXT CALSTEP
— 2. ABORT CAL
— 3. EXIT CAL
The transmitter samples reference air as the COe Low Gas. The Calibration
Status should automatically change to ReadCOLow for a period of time.
During this period, if you try to go to the next calibration step by pressing
OK and selecting START/NEXT CALSTEP, you will be prompted with
Operator step command is not accepted at this time. The START/NEXT
CALSTEP is not accepted at this time. When ready, Calibration Status will
stop at AppCOeHi.
8. Switch on the COe high gas. Verify the COe concentration measured
matches the COe HIGH GAS parameter in the Setup window. Press OK when
ready.
9. Select START/NEXT CALSTEP to start applying the COe high gas.
The time to apply the test gas is specified by the Gas Time.
The calibration status should automatically change to FlowCOeHi and then
ReadCOeHi for a period of time. During this period, if you try to go to the
next calibration step by pressing OK and selecting START/NEXT CALSTEP,
you will be prompted with Operator step command is not accepted at this
time. The START/NEXT CALSTEP command is not accepted at this time.
When ready, Calibration Status will stop at STOP GAS.
10. Switch off the COe high gas. Press OK when ready. Select START/NEXT
CALSTEP to start purging gas.
The time to purge gas is specified by the Purge time.
When the purge step is complete, the Calibration Status will be at IDLE if
the calibration is sucessful or CAL RECOMMENDED if the calibration has
failed.. A Calibration Failed alarm will be set if the calibration has failed.
11. When calibration is complete, select Exit Cal to exit the calibration method.
Manual
Calibration
00809-0500-4880 December 2022
Rosemount OCX8800A 99
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