2. To set the OOS mode, select Transducer; then select Process, followed by
Out of Service on the Target Mode screen.
3. From the Transducer screen, select Methods.
4. From the Methods screen, select OCX Calibration.
5. From the OCX Calibration screen, select Calibrate O
2
Sensor for O
2
calibration, select Calibrate Combustibles Sensor for COe calibration, or
select Calibrate Both Sensors if you want to calibrate both sensors.
On the Calibration screen, a Loop should be removed from automatic
control warning appears.
6. Remove the device from any automatic control loops to avoid a potentially
dangerous operating condition and press OK.
7. Set the Select Action screen to the following values/settings. From the
Select Action screen, select Update Display to refresh the calibration status,
select Next Calibration Step to continue calibration, select Abort Calibration
to abort calibration, or select Exit to exit calibration. Select one item from
the list and press OK.
The Select Action screen is static and data will not be automatically
refreshed.
• Calibration Step: Idle
• Step Time Remaining: 0 seconds
• O2 Value: 0.40 %
• Combustibles Value: 1000 ppm
— Update Display
— Next Calibration Step
— Abort Calibration/Exit
8. Set the Calibration screen to the following values/settings; press OK to
continue.
The Calibration screen should automatically refresh, however it may take a
while for the data to refresh.
• Calibration Step: Apply O
2
Low Gas
• Step Time Remaining: 0 seconds
• O2 Value: 0.40 %
• Combustibles Value: 1000 ppm
• Press Next for Selection
9. When the calibration status is at the Apply O
2
Low Gas/Apply Comb Low Gas
step, switch on O
2
Low Gas/COe Low Gas. Verify the O
2
concentration
measured matches the O
2
Low Gas parameter in the setup. The unit
samples reference air as the COe Low Gas. Press OK when ready.
10. Select Next Calibration Step and press OK to start applying the test gas.
The time to apply the test gas is specified by the Gas Time.
The calibration step will change to Flow O
2
Low Gas/Flow Comb Low Gas
and then Read O
2
Low Gas/Read Comb Low Gas for a period of time. When
Calibration
Manual
December 2022 00809-0500-4880
102 Emerson.com/Rosemount
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