Rosemount OCX 8800, Instruction Manual

Page: 78 / 266

Instruction Manual
IM-106-880, Rev 2.1
April 2017
OCX 8800
5-6
10. Select START CAL/STEP CAL to start applying the O
2
Low Gas. The
time to apply the test gas is specified by the Gas Time .
11. The Calibration Status should be automatically changed to FlowO2Low
and then ReadO2Low for a period of time. During this period, if an
attempt is made to go to the next calibration step by pressing OK and
selecting START CAL/STEP CAL , you will be prompted with Operator
step command is not accepted at this time .
12. When ready, Calibration Status will stop at the AppO2Hi . 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 the Setup. Press
OK when ready.
13. Select START CAL/STEP CAL to start applying the O
2
High Gas. The
time to apply the test gas is specified by the Gas Time .
14. The Calibration Status should be automatically changed to FlowO2Hi
and then ReadO2Hi for a period of time. During this period, if an attempt
is made to go the next calibration step by pressing OK and selecting
START CAL/STEP CAL , you will be prompted with Operator step
command is not accepted at this time .
15. When ready, Calibration Status will stop at STOP GAS . Switch off the
O
2
High Gas. Press OK when ready. Select START CAL/STEP CAL to
start purging gas. The time to purge gas is specified by the Purge Time .
16. When the Purge step is complete, the Calibration Status will be at IDLE .
A Calibration Failed alarm will be set if the calibration has failed.
17. When calibration is complete. Select Exit Cal to exit the calibration
method.