9. Select START/NEXT CALSTEP to start applying the O
2
low gas.
The time to apply the test gas is specified by the Gas Time.
The Calibration Status should automatically change to FIowO2Low and
then ReadO2Low 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 AppO2Hi.
10. Switch off the O
2
low gas and switch on the O
2
high gas. Verify the O
2
concentration measured matches the O2 HIGH GAS parameter in Setup.
Press OK when ready.
11. Select START/NEXT CALSTEP to apply the O
2
high gas.
The time to apply the test gas is specified by the Gas Time.
The Calibration Status should automatically change to FIowO2Hi,
ReadO2Hi, and then ReadCOeLo 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 AppCOeHi.
12. Switch off the O
2
high gas and switch on the COe Gas. Verify the COe
concentration measured matches the COe TEST GAS parameter in the
Setup. Press OK when ready.
13. Select START/NEXT CALSTEP to start applying the COe gas. The time to
apply the test gas is specified by the Gas Time.
The Calibration Status should automatically change to FIowCOeHi 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.
14. Switch off the COe gas. Press OK when ready. Select START/NEXT CALSTEP
to start purging gas.
The time to apply the test gas is specified by the Purge Time.
6.4.5
Calibrate O
2
/COe manually using the Field
Communicator - FOUNDATION
™
Fieldbus
Note
To select a menu item, either use the Up and Down arrow keys to scroll to the
menu item and press the Right key or use the number keypad to select the menu
item number. To return to a preceding menu, press the Left key.
Procedure
1. To calibrate from Fieldbus, first set the Transducer Block to Out of Service
Mode (OOS).
Manual
Calibration
00809-0500-4880 December 2022
Rosemount OCX8800A 101
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