Teledyne 201A manual Step No, Action, Comment

Teledyne API Model 201A NH3 Analyzer Instruction Manual, 04689, Rev. B1

Table 2.3 - Span Calibration Procedure - Span Gas thru Sample Port

Step No.	Action	Comment
1.	Press CAL	The M201A enters the calibrate mode. Input NO span
		gas through the sample port.
2.	Press	Set the converter efficiency parameter to 1.0000, then
	CAL-CONV-SET	press ENTR-EXIT.
2.	Wait 20 min	Wait for reading to stabilize at span value.
3.	Press SPAN	If you change your mind after pressing SPAN, you can
		still press EXIT here without spanning the instrument.
4.	Press ENTR	Pressing ENTR actually changes the calculation
		equations and causes the instrument to read the TN
		and TNx span concentrations.
5.	Press EXIT	M201A returns to sampling. Immediately after
		calibration, data is not added to the DAS averages.

12