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700M HFID
6-2-15
68
Auto Calibration Timing
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Auto Calibration Timing determines the length of time it takes the analyzer to perform the
Zero and Span cycles during a sequenced auto calibration.
To access the AutoCal Timing
screen, press
from the Calibration Setup menu. All values on the screen are expressed in
seconds.
To navigate between parameters, use the up or down arrow
to move the highlight to
the field you intend to change. Press
to open the field and change the value (seconds). Press
again to close the field after you have made your change.
A sequenced auto calibration consists of two cycles: Zero and Span. In both cases, the cycle
duration is equal to the sum of the Purge Before, Calibration and Verification times. The Total
Auto Calibration time is equal to the sum of the Zero and Span cycle times plus the Purge After
time. See the example above.
1.
Purge Before
: the operator can set the amount of time necessary to flush the analyzer
with calibration gases. This will ensure that there are no other gases remaining in the
analyzer during the calibration process.