IM727 Rev A, Page 9 of 9
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accuracy of subsequent measurements is in question. If possible, an accelerometer that has
experienced a large ZMO shift should be replaced or returned for recalibration. Any ZMO reading
approaching one-half of the excitation voltage up to the excitation voltage is a sure sign of
accelerometer failure. The simple resistance check described in the “Initial Checkout” section above
can also be used to evaluate accelerometer health.
After performing the above tests, if you are still uncertain about the health of your accelerometer
please contact Applications Engineering. An Application Engineer will be able to discuss the health
of your accelerometer in more detail and suggest if it is healthy, needs recalibration or needs
replacement. Endevco maintains an accelerometer recalibration service with NIST traceability in the
United States. Endevco European Regional offices maintain accelerometer recalibration services
with traceability to applicable national standards.
QUESTIONS
If you have any questions regarding the use of these accelerometers (or any other Endevco
®
product) please contact Endevco’s Application Engineering at +1 (866) ENDEVCO [+1 (866) 363-
3826] in North America, or your local sales representative.
