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Configuration, Startup and Operation 65
6
888Xi Advanced Electronics Instruction Manual Section 3: Configuration, Startup and Operation
PN 51-6888Xi December 2012
b. Press DIAG to view the alarms. A DIFFUSER WARNING alarm should be shown.
c
. Press EXIT to return to the DIAGNOSTIC menu.
d. From the DIAGNOSTIC menu, select ACKNOWLEDGE ALARMS then press ENTER.
e. From the ACKNOWLEDGE ALARMS menu, select ACK DIFF WARN then press ENTER.
f. When complete, press EXIT twice to return to the main display screen.
g. Press DIAG to verify the DIFFUSER WARNING alarm no longer is shown.
9. Repeat steps 1 through 5 for PROBE 2 if configured for dual channel.
Aborting O
2
Calibration with 6888Xi
1. From the calibration prompt screen, press the LEFT arrow key to return to the CALIBRATION
menu.
2. From the CALIBRATION menu, select ABORT CALIBRATION then press ENTER.
3. At the prompt, select ENTER to verify the abort command.
4. The cycle will halt in approximately 10 seconds. When prompted, press ENTER to continue.
5. The abort will continue with a purge delay according to the time programmed in the cali-
bration setup. When the purge time expires and the step indicates IDLE, the abort process
is completed. Press EXIT, then OK to return to the CALIBRATION menu.
O
2
Calibration with 6888Xi and Field Communicator
1. Use the 375/475 Field Communicator to access the main HART menu.
2. From the main menu, select CONFIGURE.
3. From the CONFIGURE menu, select CALIBRATION.
4. From the CALIBRATION menu, again select CALIBRATION.
5. From the CALIBRATION menu, select O2 CALIBRATION.
6. In the first screen, a “Loop should be removed from automatic control” warning occurs.
Remove the 6888Xi from any automatic controls loops to avoid a potentially dangerous
operating condition. Press OK when ready.
7. At the next screen when step shows APPLY GAS 1, press OK to return to the SELECT ACTION
menu.
8. At the SELECT ACTION menu, select STEP CALIBRATION then ENTER to begin the calibration
with Flow Gas 1.
9. When Flow Gas 1 and Read Gas 1 are complete and the step shows APPLY GAS 2, press OK
to return to the SELECT ACTION menu.
10. At the SELECT ACTION menu, select STEP CALIBRATION then ENTER to continue the calibra-
tion with Flow Gas 2.
11. When Flow Gas 2 and Read Gas 2 are complete and the step shows STOP GAS, press OK to
return to the SELECT ACTION menu.
12. At the SELECT ACTION menu, select STEP CALIBRATION then ENTER to continue the calibra-
tion with Purge.
13. When the step shows IDLE, press OK to return to the SELECT ACTION menu.
14. At the SELECT ACTION menu, select EXIT CALIBRATION, press ENTER, then OK to return to
the CALIBRATION menu.
WARNING
Failure to remove the 6888Xi from automatic control loops prior to performing this procedure may
result in a dangerous operating condition.