Teledyne 300 instruction manual Repeatedly Pressing Entr To Get The

NOTE

REPEATEDLY PRESSING ENTR TO GET THE

INSTRUMENT TO DISPLAY THE CORRECT SPAN/ZERO VALVE DOES NOT IMPROVE THE ACCURACY OF THE CALIBRATION, NOR DOES IT SPEED UP STABILIZATION. THE REASON FOR WAITING 5-10 MIN. IS THAT IT TAKES THE INSTRUMENT A PERIOD OF TIME 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 (512).

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 limits). The operator can exit the manual calibration procedure only by pressing the EXIT button.

P/N 02163G1 Teledyne API Model 300 CO Analyzer Instruction Manual - Page 7