Teledyne 300M - Manual (Page 16)

Teledyne API Model 300M CO Analyzer Instruction Manual, 04033, Rev. A
NOTE
Repeatedly pressing enter during span/zero calibration does not
improve the accuracy of the calibration, nor does it speed up
stabilization Allow 5 - 10 minutes to establish an accurate average
for the span/zero reading.
11. Adjust the analyzer span point.
A. Input span gas of approximately 80% of the related full scale range concentration from a
known source through the sample port of the analyzer.
B. Go to manual calibration by pressing the CAL button while in the sample mode.
C. Enter the operator password (818).
D. The menu should now show SPAN, CONC, and EXIT. Enter the concentration of the CO
calibration gas by pressing CONC and entering the value from the keyboard.
E. Wait 10 minutes for a stable reading to be attained and then press SPAN, followed by
ENTR. If the SPAN button is not displayed, this means that the analyzer is too far out of
adjustment to do a reliable calibration and thus it is not permitted (see Section 3.1 for
information on the calibration). The operator can exit the manual calibration procedure
only by pressing the EXIT button.
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