Thermo Scientific 42i Instruction Manual page 94

Operation
Instrument Controls Menu
Temperature
Compensation
3-56 Model 42i Instruction Manual
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.
The Temperature Compensation screen allows the user to turn temperature
compensation on or off. Temperature compensation changes to the
instrument's output signal that occur due to internal instrument
temperature variations. The effects of 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 42i 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 30 °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
OFF
ON ?
Thermo Fisher Scientific