Teledyne Carbon Monoxide Analyzer 300 User Manual download pdf (Page 79)

For minimum back-diffusion through the vent and for minimum back-pressure in the

manifold, the following relationship should be met:

x L

⎯⎯⎯⎯ = 500

x D

Where Q

is the vent flow in cc/min

is the Analyzer flow in cc/min

L is the vent line length in inches

D is the ID of the vent line in inches

For Q

of 1000 cc/min

of 800 cc/min

D of .188 inches

L = approximately 72”

8.2 MULTI-POINT CALIBRATION

Multi-point calibration requires seven approximately equally-spaced calibration points,

including zero, using an NIST-traceable CO source.

The calibration must be carried out:

a. Prior to field operation as an EPA-DESIGNATED REFERENCE METHOD

b. After maintenance

c. Every three months (recommended)

NOTE

THE TEST GAS MUST BE INTRODUCED INTO THE

ANALYZER THROUGH THE SAMPLE INLET PORT.

ALL FLOW MEASUREMENT DEVICES MUST BE

CALIBRATED AGAINST AN NIST-TRACEABLE

STANDARD SUCH AS A BUBBLE-FLOW-METER WHICH

HAS BEEN CALIBRATED AGAINST AN NIST-

TRACEABLE VOLUME STANDARD.

P/N 02163G1 Teledyne API Model 300 CO Analyzer Instruction Manual - Page 73

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Teledyne Carbon Monoxide Analyzer 300 User Manual Page 79