PASCO TD-8552 ELECTRICAL EQUIVALENT OF HEAT - Manual (Page 6)

Electrical Equivalent of Heat 012-02833D
2
Maintenance
Replacing the Incandescent Lamp
A. The Easy Way
Order the Lamp Assembly directly from PASCO
scientific (Part Number 003-02956). Remove the old
assembly as shown below and replace it with the
PASCO replacement.
Lamp Assembly
Bottom of Lid Top of Lid
Screw (6-32X3/8 P.H.) 610-014
Black Connector
517-010
Red Connector 517-009
Lamp Assembly Components:
Bulb 526-019
Bulb Holder 648-02954
Standoff 648-02955
Calorimeter 740-02975
India Ink 725-003
EEH:
Jar 650-026
Lamp Assembly only 003-02956
Top Assembly
003-03124
(includes Modified Lid
and Lamp Assembly)
Modified Lid Components:
Modified Lid Cover 648-02953
Lid Plate 648-02952
Label 646-02834
Part PASCO Number Part PASCO Number
1. Remove the lid of
the EEH Jar
2. Unsolder and disconnect
wires from banana plug
terminals. 3. Unscrew Lamp Assembly
from lid of EEH Jar.
4. Reverse the procedure to
replace the entire Lamp
Assembly (PASCO Part
Number 003-02956)
Figure 2 Replacing the Lamp
B. The Hard Way
The incandescent lamp is a common one that can be
purchased at most auto parts stores (Bulb 1157). Follow
the procedure shown below, then, WEARING
GLOVES TO PROTECT YOUR HANDS, pull the
lamp out of the plastic tube. You will have to solder
wires to the replacement lamp. When you install the
new lamp, seal it in position with RTV Silicone Rubber.
Be sure the seal is water tight. Replace the lamp
assembly and resolder the wires to the banana plug
terminals.
Replacement Parts
The following replacement parts can be ordered from
PASCO scientific. Call for prices (Toll-free 1-800-
772-8700).