No Only Mode Calibration; Only Mode Calibration; Calibration Requirements For Autorange Or Remote Range - Teledyne 9110AH Instruction Manual

Nitrogen oxides analyzer
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TELEDYNE Model 9110AH NO

7.5 NO Only Mode Calibration

For details on the operation of this mode, check Section 5.4. In NO only mode, the span check
or span calibration is operated using the same procedures covered in Sections 7.1 to 7.4. The
main difference to note is that only one channel, namely the NO channel will be checked or
calibrated. For example in Table 7-3 - Entering the Expected Span value, only the NO
concentration is required. The NO/NO
converter is never switched into the sample gas stream, none of the converter efficiency
procedures apply.
7.6 NO

Only Mode Calibration

x
For details on the operation of this mode, check Section 5.4. In NO
or span calibration is operated using the same procedures covered in Sections 7.1 to 7.4. The
main difference to note is that only one channel, namely the NO
calibrated. For example in Table 7-3 - Entering the Expected Span value, only the NO
concentration is required. The NO/NO
Since the instrument is always in NO
compensation to the NO
NO
portion of the signal. The valve never switches to measure the proportion of NO in the
2
sample gas, therefore the fraction of the sample that is NO
It is recommended that the converter efficiency be measured when the instrument is calibrated.
This procedure is covered in Section 7.9.
7.7 Calibration Requirements for AutoRange or Remote
Range
In AutoRange there are two separate calibrations for Low range and High range. That is there
are 2 independent slopes and 2 offsets and 2 sets of converter efficiency parameters. The
instrument applies the appropriate values depending on whether the instrument is in low range
or high range.
Analyzer Operator Manual, 01620, Rev. F
X
valve is continuously in the NO mode. And since the
x
valve is continuously in the NO
x
mode it is not possible to apply converter efficiency
x
value. This is because the efficiency should only be applied to the
x
7-9
only mode, the span check
x
channel, will be checked or
x
mode.
x
is unknown.
2
x

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