A-4 FOT Lab Kit User’s Manual
5.
Set the temperature units using the command <ESC> UN =
“units” ENTER, where “units” is Celsius, Kelvin, or Fahrenheit.
Depending on your FOT instrument, some of these units will
not be available.
6. Set the calibration temperature to match the actual
temperature of the temperature bath using the comment
<ESC> CT = nn.nn ENTER, where “nn.nn” is the temperature
in degrees and hundredths of degrees in the temperature units
previously specified using the UN command.
7. Disable the calibrated output using the command <ESC>
CC=D ENTER.
8. Allow the probe several minutes (5 to 15 minutes) to achieve
thermal equilibrium with the temperature bath.
9. Start the automatic calibration sequence using the CTRL+K
command. You may abort the procedure anytime by pressing
CTRL+A command.
10. After a few seconds you will receive the following output,
depending on the results of the calibration.
a. 1: C 100.00F 2:C 100.00F – This indicates the calibration
was successful on channels 1 and 2.
b. 1: U 100.00F 2: C 100.00F – This indicates there was an
unstable temperature variation on channel 1 but channel 2 was
successful.
c. 1: E 100.00F 2:C 100.00F – This indicates there was an
error on channel 1 but channel 2 was successful. The error is
due to the following two issues.
i. Measured temperature differs from specified calibration
temperature by more than eight degrees.
ii. The calibration coefficient required is greater than 50%
of the measured temperature.
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