TMA Q Series Getting Started Guide
44
Cleaning the Thermocouple
Sample residue and dirt may interfere with the accuracy of the thermocouple readings. To clean the thermo-
couple:
1. Raise the furnace and rotate it clockwise to move it off to the side.
2. Remove the stage shield by lifting it straight up. (This is a friction fit.)
3. Remove the spring clip holding the thermocouple in place.
4. Hold the thermocouple away from the probe assembly, and clean it gently with a low
flame using a hand-held burner.
5. Reposition the thermocouple so that the tip of the thermocouple bends at a gentle 90°
angle and lies flat against the platform. It should be close to, but not touching the
sample as seen in the figure here. Note that a sharp bend could damage the thermo-
couple.
6. Replace the spring clip to hold the thermocouple in place.
7. Replace the stage shield.
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