Teledyne 100AH instruction manual Manual Zero Calibration Procedure Z/S Valves

Teledyne API Model 100AH SO2 Analyzer Instruction Manual, 02417, Rev. D

8.2Manual Zero/Span Check or Calibration with Zero/Span Valves Option

The Zero/Span valve option can be operated from the front panel keyboard. In the Zero/Span valve option the zero and span gas comes into the valves through ports on the rear panel of the instrument.

Table 8-5: Manual Zero Calibration Procedure - Z/S Valves

Step Number	Action	Comment
1.	Press CALZ	The analyzer enters the zero calibrate mode. This switches
		the zero valve to allow zero gas to come in through the zero
		gas inlet port on the rear panel. If AutoRange is enabled,
		then select LO or HI range and press ENTR.
2.	Wait 10 min	Wait for reading to stabilize at zero value.
3.	Press ZERO	If you change your mind after pressing ZERO, you can still
		press EXIT here without zeroing the instrument.
4.	Press ENTR	Pressing ENTR actually changes the calculation equations,
		forcing the reading to zero.
5.	Press EXIT	M100AH returns to sample mode. Immediately after
		calibration, readings do not go into the DAS averages.

Table 8-6: Manual Span Calibration Procedure - Z/S Valves

Step Number	Action	Comment
1.	Press CALS	The M100AH enters the calibrate mode from sample mode.
		This operates the sample/cal and zero/span valves to allow
		span gas to come in through the cal gas inlet port or the rear
		panel. If AutoRange is enabled, then select LO or HI range
		and press ENTR.
2.	Wait 10 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.
5.	Press EXIT	M100AH returns to sampling. After calibration, data is not
		added to the DAS averages during HOLDOFF period.

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