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NDIR Gas Analyzer Maintenance
Teledyne Analytical Instruments 75
7. Maintenance
7.1 Daily Check
1. Zero calibration and span calibration
1. Perform zero calibration. For the calibration procedures, refer to
Section 6.8.1 Zero calibration.
2. Following the zero calibration, perform a span calibration. For
the calibration procedures, refer to Section 6.8.2 Span
calibration.
3. Zero/span calibration should be carried out once a week, or as
required.
2. Flow rate check
1. Sample and purge gas flow rates are as follows:
Sample gas flow : 0.5L/min ± 0.2L/min
Purge gas flow : About 1L/min
2. Instrument checks and maintenance should be carried out every
day, as required.