Teledyne 300m Manuel d'utilisateur télécharger pdf (Page 38)

Teledyne API Model 300M CO Analyzer Instruction Manual, 04033, Rev. A

3.1.2 Span Check

Allow the analyzer to sample span gas through the sample port. Press CAL button. After a few

minutes the CO reading should be at the expected concentration. If the correct concentration is

not reached, then the instrument can be adjusted to read the correct value. To do this, press

CONC and enter the expected concentration of the calibration gas. The SPAN button should

now be displayed on the front panel. Pressing SPAN and ENTER will modify the internals

formulas used to compute the CO reading. If the SPAN button is not displayed, this means that

the span reading is too far out of adjustment to do a reliable calibration. The reason for this must

be determined before the analyzer can be calibrated. See Section 10.5 for troubleshooting

calibration problems.

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Teledyne 300m Manuel d'utilisateur Page 38