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RELIABILITY
Quartzdyne utilizes two data sources to track product reliability:
internal testing and customer returns/feedback. Internal tests
are designed to test a specific element (crystal, circuit, bellows)
over a range of operating conditions. This requires several
customized tests, each optimized to probe the element in question
for specific failure criteria. Customer returns provide valuable
feedback, revealing which areas need the most improvement and
where internal testing should be improved.
We maintain an extensive database containing measurements from
all internal tests and customer returns. Continuous analysis
of these data, and then focusing on the "weakest link" has led
to significant improvements over the past fifteen years. For
Quartzdyne, continuous improvement lies in increasing the working
life of each transducer.
Therefore, a thorough review of the field performance of Quartzdyne
Pressure Transducers helps us chart our progress towards this
goal. Publishing field reliability data, both the good and the
bad, is rare in our industry. We do it to establish customer
confidence in our ongoing work of continuous improvement.
For more information, including plots of our failure modes over
the last handful of years, see our  Reliability Tech Note.
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