TA Instruments TMA 2940 CE, Operator'S Manual

Page: 53 / 178

TA I
NSTRUMENTS
TMA 2940 CE 2–17
Installing the
Expansion/
Penetration Probes
When you first receive the TMA 2940 CE, you
will need to install a probe. Later, if a different
sample form is used, you can change to the
appropriate probe for the experiment. (Refer to
Chapter 3 for details on probe selection.) The
procedures that follow explain the installation and
removal of the expansion, macro expansion,
penetration, flexure, dilatometer, and hemispheri-
cal probes.
To learn how to install the film/fiber probe, turn
to Chapter 4, "Using Your Options."
Installing a Probe
1. Raise the furnace, and rotate it clockwise to
move it off to the side.
2. Insert the core end of the probe carefully
into the opening in the TMA stage (see the
figure on the next page).
3. Loosen the probe-locking lever, which is the
knurled post found behind the weight tray
door, by turning it counterclockwise. Hold
the probe-locking lever in the up position and
continue lowering the probe into the stage
until you can feel it seat in the locking
mechanism.
NOTE:
Installing the Instrument