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Instruction Manual
IM-106-880C, OI
September 2009
Hazardous Area OCX 8800
5-2
3. From the Calib Setup second column submenu, use the right-pointing
key to select the third column parameter list.
4. Scroll down to the last item Use Solenoids. If the unit is equipped with
calibration solenoids and timed automatic calibration is desired, select
Yes.
5. Use the up-pointing key to select the item O2 Out Tracks. Select Yes or
No to determine if updates to the O
2
lock value will take place.
6. Use the down-pointing key to select the item COe Out Tracks. Select
Yes or No to define if updates to the COe lock value will take place.
7. Use the down-pointing key to select the item O2 Cal Interval. Enter the
amount of time in days and hours that is desired between automatic
calibrations.
8. Use the down-pointing key to select the next item O2 Next Cal. Enter
the amount of time in hours until the next automatic calibration. Select
the left-pointing key three times to move back to the LOI operating
display.
Autocalibration Setup using the Field Communicator - HART
NOTE
Automatic calibration is only available on units equipped with calibration
solenoids.
Use the following procedure to specify a time interval (in hours) at which the
Hazardous Area OCX 8800 will automatically calibrate.
1. From the DEVICE SETUP screen, select DETAILED SETUP.
2. From the DETAILED SETUP screen, select CAL SETUP, then select
O2 CAL PARAMS or COE CAL PARAMS.
3. If the unit is equipped with calibration solenoids and timed automatic
calibrations are desired, select Solenoids, then select Yes. Select No to
disable the calibration solenoids.
4. Select O2 Cal Intrvl (O
2
calibration interval) and enter the desired time
in hours between automatic O
2
calibrations. Select COE Cal Intrvl and
enter the desired time between automatic COe calibrations. To disable
automatic calibration for O
2
and COe, enter 0 for both Cal Intrvl
parameters.
5. If desired, the O2 Next Cal Time and the COe Next Cal Time (next
calibration time) parameters can be changed to synchronize a
calibration at a specific day or time.
When setting automatic calibration times, CalIntrvl and NxtCalTm should be set so that O
2
and COe are NOT calibrated simultaneously.