Teledyne 9110AH - Nitrogen oxides analyzer - Manual (Page 93)

TELEDYNE Model 9110AH NO
X
Analyzer Operator Manual, 01620, Rev. F
7-5
Table 7-4: Manual Span Calibration Procedure - Span Gas Thru Sample Port
Step Number Action Comment
1. Check “Before
Calibration” Check “Before Calibration” Section 7 before proceeding.
2. Press CAL The M9110AH enters the calibrate mode. NO span gas should
be fed to the sample port.
3. Select LOW or
HIGH If AutoRange is selected, it is necessary to select which range
to calibrate. This prompt will not be displayed unless
Autorange or Remote range is selected.
4. Wait 10 min Wait for reading to stabilize at span value.
5. Press SPAN If you change your mind after pressing SPAN, you can still
press EXIT here without spanning the instrument.
6. Press ENTR Pressing ENTR actually changes the calculation equations and
causes the instrument to read the expected NO and NO
x
span
concentrations.
7. Press EXIT M9110AH returns to sampling. Immediately after calibration,
data is not added to the DAS averages.