Calibration Equipment, Supplies, And Expendables; Level 1 Calibrations Versus Level 2 Checks - Teledyne 300E Instruction Manual

EPA Protocol Calibration
To ensure accurate measurements of the CO levels, the analyzer must be calibrated
at the time of installation and re-calibrated as necessary.
A general procedure for dynamically calibrating a CO analyzer can be found in 40
CFR 50 Appendix A, the specific procedure for calibrating the M300E is given below.
Calibration can be done by either diluting high concentration CO standards with
zero air or using individual tanks of known concentration. Details of
documentation, forms and procedures should be maintained with each analyzer and
also in a central backup file as described in Section 2.6.2 of the Quality Assurance
Handbook.
Calibrations should be carried out at the field-monitoring site. The Analyzer should
be in operation for at least several hours (preferably overnight) before calibration
so that it is fully warmed up and its operation has stabilized.
Zero and Span Gasses used during checking calibration and performing calibrations
should conform to the specifications listed in Section 8.1.

8.1.2. Calibration Equipment, Supplies, and Expendables

The measurement of CO in ambient air requires a certain amount of basic sampling
equipment and supplemental supplies, the Quality Assurance Handbook Section 2.6
contains information about setting up the appropriate systems.
Spare Parts and Expendable Supplies
In addition to the basic equipment described in the Q. A. Handbook, it is necessary
to maintain an inventory of spare parts and expendable supplies. Section 9
describes the parts that require periodic replacement and the frequency of
replacement. Appendix B contains a list of spare parts and kits of expendables
supplies.

8.1.3. Level 1 Calibrations versus Level 2 Checks

All monitoring instruments are subject to some drift and variation in internal
parameters and cannot be expected to maintain accurate calibration over long
periods of time the EPA requires a schedule of periodic checks of the analyzer's
calibration be implemented. Zero and span checks must be used to document that
the data remains within required limits. These checks are also used in data
reduction and system validation.
Calibration, on the other hand is the process of adjusting the gain and offset of the
M300E to agree with some recognized standard.
A Level 1 Span check is used to document that the M300E is within control limits
and must be conducted every 2 weeks. A Level 2 Span Check is to be conducted
between the Level 1 Checks on a schedule to be determined by the user.
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Model 300E Carbon Monoxide Analyzer
Instruction Manual
P/N 04288 REV: A