PASCO TD-8558A THERMAL EXPANSION APPARATUS - Manual (Page 6)

Thermal Expansion Apparatus 012-04394C
2
Accepted Values for Coefficient of
Thermal Expansion
Material a ( x10-6/
∞
C )
Copper 17.6
Steel 11.3 to 13.5
Aluminum 23.4
Changing Tubes
➤ Caution:
When changing tubes be careful
not to pull the wires off the
thermistor. The thumb-
screw must be com-
pletely removed
before the thermistor
can be lifted off the
threaded rod.
Replacement Parts
The following parts can be ordered from
PASCO scientific.
Item PASCO Part #
mod. Thermistor (100 k
Ω
) 150-03140
Al Tube Assy 003-04413
Cu Tube Assy 003-04412
Steel Tube Assy 003-04414
Foam Insulator 648-03100
Dial Gauge 620-050
Thermistor
Tube
Thumbscrew