Clarus 600/680 GC User’s Guide
6-65
down field is inactive. (GC Tune is only available if it is downloaded. A
successful tune must be performed in order for GC tune to be enabled.
Only those channels for which a valid tune exists will be available on the
drop down list. The selection will be made from the external GC Tune
software, but the user may override this.)
The actual temperature under the single point radio button is the time-
averaged actual oven temperature.
6. Allow the oven temperature to equilibrate for at least 30 minutes by
setting the time in the Equilibrate field. Press OK. The displayed
temperature will approach 100.00
°C (or the oven temperature you
entered in step 4), and the thermometer readout will approach a value
close to 100.00
°C.
Enter the Required Offset Value
1. After the temperature has stabilized, subtract the thermometer reading
from the actual oven temperature shown on the previous screen.
2. Using the plus and minus keys enter a value into the above screen, then
press
OK. For example, if the thermometer reads 101.55 °C, and the oven
temperature reads 100.10
°C, type a value of -1.45 °C.
Remove the Thermometer Probe
After temperature calibration is satisfactory:
1. Open the oven door and allow the oven to cool until the fan stops.
2. Remove the temperature probe.
3. Fill in any hole left by the probe in the oven insulation.
4. Replace the left-side instrument cover.
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