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CHAPTER
4
Preventative (scheduled) maintenance
CAUTION
Cleaning the painted surfaces and front panel
Cleaning the fans and heat sinks
Cleaning fans
The TE-1500 was designed for minimal care and maximum reliability.
By following a few basic rules of preventative maintenance, the TE-
1500 should provide years of trouble-free operation.
The TE-1500 requires a minimum amount of maintenance at intervals
that are entirely dependent upon the environment and the degree of
usage. In the typical situation of an average modern laboratory
performing a dozen tests daily, the following tasks should be per-
formed every six months. If the bath is located in a dirty environment
and/or is heavily used, the preventative maintenance listed below
should be scheduled on a monthly basis.
Remove power from the bath before cleaning or maintenance.
Appropriate eye protection (safety goggles) is also required.
The finish of the TE-1500 is a baked-on epoxy enamel in colors of
almond and black. This paint is virtually immune to most solvents,
however, if acetone is rubbed on the painted surfaces, the paint will be
removed. A good quality household cleaner may be used on all
painted surfaces and the front panel. Do not spray the cleaning fluid
directly on any surface, especially the area where the fans and heat
sinks are located. The liquid will harden dust particles and cause an
accumulation of dust to be imbedded into the heat sinks and make
removal very difficult. Instead, a soft cloth should be sprayed with the
cleaning solution and the cloth should be used to transfer the solution
to the surface of the instrument.
Dust and dirt will accumulate with time in the small gaps of the air
heat sinks and around the blades of the fans. These deposits will affect
the cooling effectiveness of the thermoelectric cells and will ultimately
affect the ability of the bath to function at cold temperatures.
Use a compressed air source to blow the dust away. Move the upper
Bath Vessel Assembly outside or away from any clean environment.
Apply the blasts of clean air through the fans on the sides and the rear,
and alternately apply blasts of air directly into the heat sinks. This can
®
TE-1500 Thermoelectric Constant Temperature Bath
CANNON
Revision 1.1b—January, 2007; CANNON
2139 High Tech Road • State College, PA 16803 • USA
MAINTENANCE
®
Instrument Company
21
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