Calibrate No, No X And Prereactor Backgrounds - Thermo Scientific 42i Instruction Manual

Calibrate NO, NO
Prereactor Backgrounds
Thermo Fisher Scientific
calibration. For more information about calibration, see Chapter 4,
"Calibration".
In the Main Menu, choose Calibration.
●
CALIBRATION:
>CAL PREREACTOR ZERO
CAL NO BACKGROUND
CAL NOx BACKGROUND
CAL NO COEFFICIENT
CAL NO2 COEFFICIENT
CAL NOx COEFFICIENT
CAIBRATE PRESSURE
RANGE AVG DIAGS ALARM
ZERO/SPAN CHECK
and
The Calibrate NO Background screen is used to adjust the background, or
x
perform a "zero calibration". Be sure the analyzer samples zero air until the
readings stabilize. The NO, NO
operate the same way. Therefore, the following description of the NO
background applies to the NO
The first line of the display shows the current NO reading.
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 Prereactor Zero, Cal
●
NO, or Cal NOx Background.
NO BACKGROUND:
NO:
CURRENTLY:
SET CO TO ZERO
RANGE AVG DIAGS ALARM
CALIBRATION:
>CAL PREREACTOR ZERO
CAL NO BACKGROUND
CAL NOx BACKGROUND
CAL HI NO COEFFICIENT
CAL HI NO2 COEFFICIENT
CAL HI NOx COEFFICIENT
CAL LO NO COEFFICIENT
RANGE AVG DIAGS ALARM
CAL LO NO2 COEFFICIENT
CAL LO NOx COEFFICIENT
CALIBRATE PRESSURE
, and Prereactor Background screens
x
and Prereactor background screens as well.
x
0.09
0.00 ?
Model 42i Trace Level Instruction Manual
Operation
Calibration Menu
3-21