TA Instruments TMA 2940 CE, Operator'S Manual, Page: 154 / 178

Maintenance and Diagnostics
TA I
NSTRUMENTS
TMA 2940 CE 6–6
Probes may also be cleaned in a nitric acid
solution.
Cleaning the Stage
Dirt or sample residue left on the top of the stage
may interfere with the next sample placed on the
stage. To maintain proper experimental condi-
tions, clean the stage as follows:
For small amounts of residue:
1. Use industrial cleaner or acetone on a soft
cloth to wipe the top of the stage.
For thorough cleaning:
1. Raise the furnace, and rotate it clockwise to
move it off to the side.
2. Remove the stage shield.
3. Take off the spring clip that holds the sample
thermocouple, and move the thermocouple
off to the side of the stage.
4. Turn the stage nut counterclockwise to
remove it.
5. Twist the stage retainer ring (with key slots)
counterclockwise, pull it up off the posts, and
slide it up off the stage.
6. Take the wave washer up off the stage
flange, and remove it.
7. Remove the stage from the stage opening.