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Temperature
Compensation
Thermo Fisher Scientific
User Value
The User Value screen allows the user to set the output value for the
corresponding input voltage for the selected table point in the conversion
table, from -9999999 to 99999999. The default table is a two-point table
with point 1: 0.00 V = 000.0 U and point 2: 10.00 V = 10.0 U, where U is
the previously entered unit of measure.
In the Main Menu, choose Instrument Controls > I/O Configuration >
●
Analog Input Config > select Channel > select Point > User Value.
Temperature compensation provides compensation for any changes to the
instrument's output signal due to internal instrument temperature
variations. The effects of internal instrument temperature changes on the
analyzer's subsystems and output have been empirically determined. This
empirical data is used to compensate for any changes in temperature. This
compensation can be used for special applications, or when operating the
instrument outside the recommended temperature range, even though the
Model 48i does not require temperature compensation for EPA
equivalency.
When temperature compensation is on, the display shows the current
internal instrument temperature (measured by a thermistor on the Interface
board). When temperature compensation is off, the display shows the
factory standard temperature of 25 °C.
In the Main Menu, choose Instrument Controls > Temperature
●
Compensation.
TABLE POINT 01 USER VAL:
CURRENTLY:
SET TO:
MOVE CURSOR
CHANGE VALUE
RANGE
AVG
DIAGS ALARM
TEMPERATURE COMPENSATION:
COMP TEMP:
CURRENTLY:
SET TO:
TOGGLE VALUE
RANGE
AVG
DIAGS ALARM
0.00
00000.00
SAVE
o
30.0
C
ON
OFF ?
Model 48i Instruction Manual
Operation
Instrument Controls Menu
3-57
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Troubleshooting
