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EPA Calibration Protocol Teledyne API – Technical Manual - Model 300E Family CO Analyzers
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10.4.3. SYSTEM AUDIT/VALIDATION
A system audit is an on-site inspection and review of the quality assurance activities used for the total
measurement system (sample collection, sample analysis, data processing, etc.); it is an appraisal of system
quality.
Conduct a system audit at the startup of a new monitoring system and periodically (as appropriate) as significant
changes in system operations occur.
10.5. DYNAMIC MULTIPOINT CALIBRATION PROCEDURE
10.5.1. LINEARITY TEST
In order to record the instrument’s performance at a predetermined sensitivity and to derive a calibration
relationship, a minimum of three reference points and one zero point uniformly spaced covering 0 to 90 percent
of the operating range are recommended to define this relationship.
The analyzer's recorded response is compared with the known concentration to derive the calibration
relationship.
To perform a precision check during the instrument set up, the sources of zero air and sample gas should conform to
those described in Section 9.1.2.
Follow the pro
cedures described in Section 9.3 for calibrating the zero points.
For ea
ch mid
point:
04288D DCN5752