Dynamic Zero/Span Calibration Using Autocal; Table 7-6: Manual Spanc - Teledyne 9110AH Instruction Manual

TELEDYNE Model 9110AH NO
Table 7-6: Manual Span Check Procedure - Z/S Valves
Step Number
1.
2.
3.
4.
5.
6.

7.3 Dynamic Zero/Span Calibration Using AutoCal

The M9110AH can be automatically calibrated periodically using the Zero/Span Valve Option
and features in the AUTOCAL menu. The Dynamic Zero/Span feature can be enabled when an
AutoCal Sequence is set up. Refer to Section 6.2 for information.
With the Dynamic AutoCal in operation, the M9110AH is being continuously re-calibrated. We
recommend that the quality of the calibrations be carefully monitored to assure that the
instrument is performing correctly. Subtle fault conditions can sometimes be masked by
continuous re-calibration.
Analyzer Operator Manual, 01620, Rev. F
X
Action Comment
Press CALS The M9110AH enters the span calibrate mode and switches the
Z/S valves to admit NO span gas.
Select LO or HI If AutoRange is enabled you will be prompted for which range
range to calibrate. Select the LO or HI range, then press ENTR
Wait 10 min Wait for reading to stabilize at span value.
Press SPAN If you change your mind after pressing SPAN, you can still
press EXIT here without spanning the instrument.
Press ENTR Pressing ENTR actually changes the calculation equations and
causes the instrument to read the expected NO and NO
concentrations.
Press EXIT The Zero/Span valves are switched back to admit gas through
the sample port and instrument returns to SAMPLE mode.
Immediately after calibration, data is not added to the DAS
averages.
7-7
span
x