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Calibration
Calibration
Calibrate the NO Channel to the
NO Calibration Gas
Calibrate the NO
Channel to the
x
NO
Calibration Gas
x
4-12
42iQHL Instruction Manual
[NO]
= Diluted NO concentration at the output manifold, ppm
OUT
NO
= No feed concentration
STD
F
= No flow
NO
F
= Ozone flow
O
F
= Dilution flow
D
Use the following procedure to calibrate the NO channel to the NO
calibration gas.
1. Allow the analyzer to sample the NO calibration gas until the NO,
NO
, and NO
readings have stabilized.
2
x
2. When the responses stabilize, from the Home Screen, choose
Calibration>Calibrate Span Coefficients>Calibrate NO Span
Coefficient.
The user sets the span concentration by pressing the Edit NO Span
Concentration button. The Calculated NO Span Coefficient button
will show what the span coefficient will be set to if the Calibrate button
is pressed. Pressing the Calibrate button will save the new NO span
coefficient and calibrate the instrument.
3. Enter the NO calibration gas concentration using the pushbuttons, and
then press Calibrate to calibrate the instrument to the NO calibration
gas.
4. Record the [NO]
OUT
Use the following procedure to calibrate the NO
calibration gas.
1. Press the Back button to return to the Calibration menu, and choose
Calibrate NO
Span Coefficient.
x
2. Verify that the NO
NO calibration gas concentration plus any known NO
The user sets the span concentration by pressing the Edit NO
Concentration button. The Calculated NO
will show what the span coefficient will be set to if the Calibrate button
concentration and the instrument's response.
calibration gas concentration is the same as the
x
channel to the NO
x
x
impurity.
2
Span
x
Span Coefficient button
x
Thermo Scientific
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