Calibrate No High - Thermo Scientific 42iQHL Instruction Manual

Calibration
Calibration in Dual Range and Auto Range Mode
Calibrate NO

Calibrate NO High

4-18 42iQHL Instruction Manual
The user sets the span concentration by pressing the Edit Span
Concentration button. The New Span Coefficient button will show
what the span coefficient will be set to if the Calibrate button is
pressed.
2. Verify that the low NO
low NO calibration gas concentration plus any known NO
3. Enter the NO
and then press Calibrate to calculate and save the new low range NO
span coefficient based on the entered span coefficient.
Low
Use the following procedure to calibrate the NO
2
calibration gas.
1. Adjust the O
produce a decrease in the low NO concentration equivalent to about
80% of the URL of the low NO
90% of the low NO concentration determined in the
Low" procedure.
2. Press the Back button to return to the Calibration menu and choose
Calibrate Low Range NO
The user sets the span concentration by pressing the Edit Span
Concentration button. The New NO
show what the span coefficient will be set to if the Calibrate button is
pressed.
3. Set the low NO
NO concentration generated by GPT and any NO
2
pushbuttons, and then press Calibrate to calculate and save the new
low range NO
Use the following procedure to calibrate the NO channel to the NO
calibration gas.
1. Connect a source of high NO calibration gas of about 80% of the high
NO full-scale range. Allow the analyzer to sample the high NO
calibration gas until the NO, NO
calibration gas concentration is the same as the
x
calibration gas concentration using the pushbuttons,
x
generator in the GPT system to generate sufficient O
3
range. The decrease must not exceed
2
Span Coefficient.
2
calibration gas concentration to reflect the sum of the
2
span coefficient based on the entered span coefficient.
2
, and NO
2
2
channel to the NO
2
"Calibrate NOx
Span Coefficient button will
2
impurity using the
2
readings have stabilized.
x
Thermo Scientific
impurity.
x
2
to
3