Calibrate No, No; Zero/Span Check - Thermo Scientific 42i Instruction Manual

Calibrate NO, NO

NO Coefficients
x

Zero/Span Check

Thermo Fisher Scientific
accurate, use the 300-second averaging time. For more information about
calibration, see Chapter 4, "Calibration".
In the Main Menu, choose Calibration > Calibrate NO or NOx
●
Background.
NO BACKGROUND:
, and
The Calibrate NO Coefficient screen is used to adjust the NO span
2
concentration while sampling span gas of known concentration. All
calibration screens operate the same way. Therefore, the following
description of the NO calibration screen applies to the NO
calibration screens as well.
The display shows the current NO concentration reading and the current
NO range. The next line of the display is where the NO calibration gas
concentration is entered.
It is important to note the averaging time when calibrating. The longer the
averaging time, the more accurate the calibration will be. To be most
accurate, use the 300-second averaging time. For more information about
calibration, see Chapter 4, "Calibration".
In the Main Menu, choose Calibration > Cal NO, NO2 or NOx
●
Coefficient.
CALIBRATE NO:
The Zero/Span Check menu is available only if the zero/span valve option
is installed. It is used to program the instrument to perform fully
automated zero and span checks or adjustments.
In the Main Menu, choose Calibration > Zero/Span Check.
●
NO:
CURRENTLY:

SET CO TO ZERO
RANGE AVG DIAGS ALARM
NO:
SPAN CONC:
 MOVE CURSOR
 CHANGE VALUE
RANGE AVG DIAGS ALARM
1.2
0.00 ?
25.5
0001.000 ?
 SAVE
Model 42i Instruction Manual
Operation
Calibration Menu
and NO
2 x
3-21