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[APD] Re: pH controller is flipping
I am currently using the seramic ph controller (produced by
sera). Recently the ph measurements started swinging from 10 to 4 without
any reason. I tried to reinstall the whole thing, using the test
solutions and all. It still isn't working properly. I suspect the ph
probe to be broken and the test solutions outdated as well.
I'm now trying to fix everything. The easiest solution would be to go to
an LFS and buy a new probe and test solutions but I was wondering if it
wouldn't be possible to use another probe (possibly cheaper). Has anyone
any experience with this?
You may want to check for corrosion inside the connector between the probe
and the controller. Corrosion can cause all kinds of weird problems with
the small signals the controller sees from the probe.
UNIX Systems Administrator
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