General Programming 6-31
September 2007
DriftCal Enabled and Two
Gases Selected (cont.)
The Perform SpanCal option:
This option performs a span gas calibration of the XMO2 using the
span gas and time interval specified in the Set Span Gas option.
IMPORTANT: Be sure the XMO2 is connected to the correct span
gas at the correct flow rate prior to using the
Perform SpanCal option. Refer to Chapter 4, Field
Calibration, for details.
If
[Y] was pressed above, the XMO2 begins taking span gas readings.
Approximately every 2.5 sec, it displays the % oxygen and the time
remaining for the calibration.
After the specified calibration time has expired, the XMO2 records
the calibration data and displays the new calibration.
Note: If the XMO2 does not reach equilibrium before the calibration
time expires, the calibration is rejected and the error message,
“Span Gas Calibration Error-Check Cal Gases” is displayed.
To correct the error, erase the DriftCal data in the Reset
DriftCal menu (see page 6-33).
This completes the prompts for the Perform SpanCal option, and the
XMO2 returns to the Two-Gas DriftCal menu.
DRIFTCAL MENU
Press [Y] or [Enter] to perform a
SpanCal, or press
[N] to proceed
to the next menu option.
Perform SpanCal?
Span Gas ON (M:SS)
xx.xx %O2
DriftCal in Progress
Measuring Span x.xx %O2
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