083730510A DCN8172
Teledyne API T500U CAPS NO
2
Analyzer with NumaView™ Software
81
Table 4-3. Auto Cal Programming Sequence Execution
ATTRIBUTE
ACTION
Start
When the Enabled box is “on” , the Sequence (identified by its
number) begins on the date and time shown in the configurable Start
field. (Click the field for the pop-up window and toggle between the
Time (Hour/Minutes) and the Date (Year/Month/Day) attributes to edit
as needed).
Interval
Number of minutes to skip between each Sequence execution. (Click
the field to input the number of minutes in the pop-up window).
Duration
Number of minutes that each Sequence execution is to run. (Click the
field to input the number of minutes in the pop-up window).
Important
IMPACT ON READINGS OR DATA
•
The programmed STARTING_TIME must be a minimum
of 5 minutes later than the real time clock for setting real
time clock (Setup>Instrument, Section 2.5.9).
•
Avoid setting two or more sequences at the same time
of the day.
•
Any new sequence that is initiated whether from a timer,
the COM ports or the contact closure inputs will override
any sequence that is in progress.
•
It is recommended that calibrations be performed using
external sources of Zero Air and Span Gas whose
accuracy is traceable to EPA standards.
CALIBRATION QUALITY ANALYSIS
It is important to evaluate the analyzer’s calibration
SLOPE
and
OFFSET
parameters.
Their values describe the linear response curve of the analyzer, indicating the quality of
the calibration.
Set up the Data Logger with a Periodic trigger to record the values of the Slope and Offset
parameters.
Ensure that these parameters are within the limits listed in Table 4-4 and frequently
compare them to those values on the
Final Test and Validation Data Sheet
that came with
your instrument, which should not be significantly different. Otherwise, refer to the
troubleshooting Section 5.7.6.
Table 4-4. Calibration Data Quality Evaluation
FUNCTION
MINIMUM VALUE
OPTIMUM VALUE
MAXIMUM VALUE
SLOPE
-0.800
1.000
1.200
OFFSET
-10 ppb
0.0 ppb
10.0 ppb
Summary of Contents for T500U
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