Hi list.

An update on my temp sensing situation:

I obtained a through bore slip ring from Ali Express and contained it in a
plastic box with an opening at the top and bottom about 1mm larger radius
than the shaft to accommodate the wires in and out. The probe is attached
to the paddle shaft with some hose clamps and simply bent at the bottom to
protrude out a bit.  The box is fixed in place with a small (sticky taped
at the moment) bracket and has a nitto type plug for attaching air for a
purge. I'm currently running with a small air compressor with the pressure
wound down but I think a low pressure high volume blower of some sort will
be better - to be determined. I just did the first test and it went well;
 the slip ring appeared dry and cool at the end of it, and the temperature
readout matched that of  an immersed probe.

It's a bit of a "quick hack" ATM to see how it goes for a little while; if
successful I will consider fabricating it more neatly.

Many thanks for your suggestions - there were many good ones, this just
felt like the quickest for my own capabilities.
--=20
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