How do I detect pressure-gauge diaphragm failure?

Problem:

When a pressure-gauge diaphragm fails, be it due to poor design or mishandling, the gauge can still read the system pressure as the media takes the place of the fill fluid which has disappeared into the batch.

Solution:

By fitting a capacitance probe in the fill-fluid cavity, we can provide an alarm on pressure-gauge diaphragm failure. This should reduce batch contamination to the current batch and not leave uncertainty over when the diaphragm failed and how many batches could be affected.

The following link gives more details on the common problems of pressure-gauge diaphragms.

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