68 Configuration, Startup and Operation
Section 3: Configuration, Startup and Operation Reference Manual
January 2019 00809-0100-4892
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2. From the SELECT ACTION menu, select ABORT CALIBRATION then press ENTER.
3. The cycle will halt in approximately 10 seconds. When the step shows STOP GAS, press OK
to return to the SELECT ACTION menu.
4. From the CALIBRATION menu, select STEP CALIBRATION then ENTER.
5. The abort will continue with a purge delay according to the time programmed in the cali-
bration setup. When the step shows IDLE, press OK to return to the SELECT ACTION menu.
6. From the SELECT ACTION menu, select EXIT CALIBRATION then ENTER, the OK to return to
return to the CALIBRATION menu.
3.8.3 Calibration Log
The 6888XI stores the current and 10 previous calibrations. The stored data includes the slope,
constant, cell impedance and time (in days) since that calibration. The log can be accessed as
follows:
Using the 6888Xi Keypad & Display: IOB 1 Probe 1(or 2)\Calibration\Cal Constants\
Cal Logs
Using the Field Communicator: Configure\Calibration\Calibration
Constants\Calibration Logs
When first entering the log, the screen will display calibration 1. This is the most recent previous
calibration, not the current calibration. Calibration 0 displays the current calibration. Use the
keypad or communicator keys to navigate through the logs. The factory default for log entries is
a slope of 50.00 mV/Dec and constant of 0.00 mV. Any log entries with these values means
there have not been at least 10 calibrations performed to fill the entire log.
3.8.4 Reset Calibration
The 6888Xi has the ability to reset the current calibration and replace it with the previous. A cal-
ibration may be reset in cases where the calibration was acknowledged in error or the calibra-
WARNING
Failure to remove the 6888Xi from automatic control loops prior to performing this procedure may result
in a dangerous operating condition.
WARNING
Failure to remove the 6888Xi from automatic control loops prior to performing this procedure may result
in a dangerous operating condition.
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