Calibration Menu; Calibrate Co Background - Thermo Scientific 48i Instruction Manual

Calibration Menu

Calibrate CO
Background
Thermo Fisher Scientific
RESTORE USER DEFAULTS:
RANGE AVG DIAGS ALARM
The Calibration menu is used to calibrate zero and span. The calibration
menu is similar for the single, dual, and auto range mode as shown below.
The only difference between the screens are the words "HI" and "LO" to
indicate which range is displayed. The dual and auto range modes have two
CO span factors (high and low). This allows each range to be calibrated
separately. This is necessary if the two ranges used are not close to one
another. For example, a low CO range of 50 ppm and a high CO range of
1000 ppm. For more information about calibration, see Chapter 4,
"Calibration".
In the Main Menu, choose Calibration.
●
CALIBRATION:
>CAL BACKGROUND
CAL COEF
ZERO/SPAN CHECK
RANGE AVG DIAGS ALARM
The Calibrate CO Background screen is used to adjust the CO
background, or perform a "zero calibration". Before performing a zero
calibration, ensure the analyzer samples zero air for at least 5 minutes.
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 CO Background.
●
RESTORE USER DEFAULTS:

RESTORE
ARE YOU SURE YOU WANT
PRESS
CALIBRATION:
>CAL BACKGROUND
 TO CONFIRM RESTORE
RANGE AVG DIAGS ALARM
CAL HI COEF
CAL LO COEF
RANGE AVG DIAGS ALARM
Model 48i Trace Level-Enhanced Instruction Manual
Operation
Calibration Menu
 RESTORE
TO?x
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