We recently worked with a
company to do a HALT test on a potential relay that was used in a HVAC
application. The relay had completed the initial development validation
testing, but they wanted to make sure that they had not overlooked any design
issues that would affect the life of the product.
The testing required special functional testing of the product throughout the
HALT test. We were able to design and build the required functional test
equipment that duplicated what the relay would see in a start up condition. We were also able to build
the mounting fixtures that simulated the actual test environment. The
design incorporated low transmission losses with good thermal conductivity in
order to meet rapid temperature transition rates. Tri-axial
accelerometers along with thermocouples were mounted to the surface of the
product so that all of the real time test data could be captured. The
testing was a success and actually indicated the field problems that the
production relays had that we compared the prototypes to. The
test was then designed for HASS (Highly Accelerated Stress Screening) in order
to audit production capability.
We worked with a company to
evaluate various oil blends in order to determine the most cost affective
lubricant for a particular application. The oils were used in a
refrigerant hermetic compressor. Various blends were tested under
extreme conditions and compared to a known production blended oil, which had
considerable field tests results. The customer was able to demonstrate
through our testing that they could produce a more cost affective oil that
could replace the existing production blend.
Jackson Test Lab Inc.
166 Pleasant Drive
Tecumseh, Michigan 49286
Duane Fry at: email@example.com