Model 100E Instruction Manual Calibration Procedures
045150102 Rev XB1 139
If contact closures are used in conjunction with the analyzer’s AutoCal (Section 7.8)
feature and the AutoCal attribute CALIBRATE is enabled, the M100E will not re-calibrate
the analyzer until the contact is opened. At this point, the new calibration values will be
recorded before the instrument returns to SAMPLE mode.
If the AutoCal attribute CALIBRATE is disabled,
the instrument will return to SAMPLE
mode, leaving the instrument’s internal calibration variables unchanged.
7.8. Automatic Calibration (AutoCal)
The AutoCal system allows unattended, periodic operation of the zero/span valve options
by using the analyzer’s internal time of day clock. AutoCal operates by executing user-
defined sequences to initiate the various calibration modes of the analyzer and to open
and close valves appropriately. It is possible to program and run up to three separate
sequences (SEQ1, SEQ2 and SEQ3). Each sequence can operate in one of three modes
or be disabled.
Table 7-2: AutoCal Modes
Mode Action
Disabled Disables the sequence
Zero Causes the sequence to perform a zero calibration or check
Zero-Span Causes the sequence to perform a zero and span
concentration calibration or check
Span Causes the sequence to perform a span concentration
calibration or check
Each mode has seven parameters that control operational details of the sequence (Table
7-3).
Table 7-3: AutoCal Attribute Setup Parameters
Attribute Name Action
Timer Enabled Turns on the Sequence timer
Starting Date Sequence will operate on Starting Date
Starting Time Sequence will operate at Starting Time
Delta Days Number of days to skip between each sequence
Delta Time Incremental delay on each Delta Day that the sequence starts.
Duration Duration of the sequence in minutes
Calibrate Enable to do dynamic zero/span calibration, disable to do a cal
check only. This must be set to OFF for units used in US EPA
applications and with IZS option installed.
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