Thermo 42i - Calibration Factors Menu

Operation
Calibration Factors Menu
3-18 Model 42i Low Source Instruction Manual Thermo Electron Corporation
manual NO and manual NO
x
modes: 1, 2, and 5 seconds. For more
information about the manual mode, see “Auto/Manual Mode” later in this
chapter.
• In the Main Menu, choose Averaging Time.
• Use and to scroll through a list of choices.
• Press to save the averaging time.
Calibration Factors
Menu
Calibration factors are used to correct the NO, NO
2
, and NO
x
concentration readings that the instrument generates using its own internal
calibration data. The Calibration Factors menu displays the calibration
factors. The screens below show the calibration factors menu in single mode
and dual/auto range modes.
Normally, the instrument is calibrated automatically using the commands
listed in the Calibration menu described later in this chapter. However, the
instrument can also be calibrated manually using the Calibration Factors
menu.
To manually calibrate the instrument, see “NO and NO
x
Backgrounds”,
“NO, NO
2
, and NO
x
Span Coefficients”, and “Calibration Pressure” below.
• In the Main Menu, choose Calibration Factors.
AVERAGING TIME:
CURRENTLY: 30 SEC
SET TO: 10 SEC ?
©ª CHANGE VALUE


 SAVE VALUE
RANGE AVG DIAGS ALARM