Teledyne 300M - Manual (Page 79)

Teledyne API Model 300M CO Analyzer Instruction Manual, 04033, Rev. A
8 CALIBRATION
This section describes a method of performing a multi-point calibration of the Model 300M CO
Analyzer and a method of performing a zero-span check.
8.1 Required Equipment and Gas Standards
Zero air must be free of CO (less than 0.1 PPM of CO).
CAUTION
Be careful when pulling in outside air particularly if outside humidity
and temperature are high. Condensation may result which can lead to
unstable operation, or at worst, water contamination in the cell.
Calibration gas concentrations must be generated from an NIST-traceable cylinder of CO -in-air.
Carrier air for transporting the CO must be the same as the zero air. A suggested calibration gas
generating system is shown in Figure 8-1.
The materials in the calibration gas delivery system should be stainless steel, TFE and FEP
(Teflon). The system must be clean.
The calibration gas delivery system (or manifold) must be properly vented to a suitable vent
outside the analyzer area and near the analyzer inlet to avoid imposing a pressure or vacuum at
the inlet. The recommended venting method is shown in Figure 8-2.
8-1