Co Coefficient; O Background - Thermo Scientific 410i Instruction Manual

Operation
Calibration Factors Menu
CO Coefficient
2
O Background
2
3-18 Model 410i Instruction Manual
CO2 BACKGROUND:
CO2:
SET BKG TO:
RANGE AVG
The CO span coefficient is usually calculated by the instrument processor
2
during calibration. The span coefficients are used to correct the CO
readings and normally has a value near 1.000.
The CO Coefficient screen enables the CO
2
manually changed while sampling span gas of known concentration.
The display shows the current CO
the display shows the CO
being used to correct the CO
coefficient value is changed, the current CO
also changes. However, no real changes are made until
In dual or auto range modes, "HIGH" or "LOW" is displayed to indicate
the calibration of the high or low coefficient. The following example shows
the coefficient screen in dual/auto range mode.
Note The concentration value will show "ERROR" if the measured
concentration is not a valid span value (either higher than the selected
range, or 0 or lower). ▲
In the Main Menu, choose Calibration Factors > Hi Coef.
●
HIGH CO2 COEFFICIENT:
HIGH CO2:
SET COEF TO:
RANGE AVG
The O Background screen is used to perform a manual zero calibration of
2
the oxygen sensor. Before performing a zero calibration, allow the analyzer
to sample nitrogen until stable readings are obtained. The first line of the
display shows the current O
the O background correction that is stored in memory. The O
2
15.80
0.00 ?

INC/DEC
SAVE VALUE
DIAGS ALARM
span coefficient to be
2
concentration reading. The next line of
2
span coefficient that is stored in memory and is
2
concentration. Notice that as the span
2
concentration reading above
2
15.8
1.000
 INC/DEC
SAVE VALUE
DIAGS ALARM
reading. The second line of the display shows
2
2
is pressed.
2
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