Quote:
Originally Posted by glend
I bought one of those ebay temp controllers and it came with a sheet of instructions.
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Glen, thanks. Can you tell me how you have the TEC wired in )i.e. Pins 1 and 2)? I found some instructions on the net but they seem to me to be equivocal as to the way to connect the TEC.
In the instructions, it is said to have, as a feature. what they describe as "Direct connection with TE cooler with automatic electrodes switching for constant temperature control. "
And in the diagram showing the rear panel connections, the polarity for the connectors 1 and 2 is not shown. Instead, there is a note saying "Pin 1 and 2: Connect to TE Cooler: Pin 1 is + and Pin 2 is - while heating. Pin 1 is - and Pin 2 is + while cooling. "
But if the thing features automatic electrode switching, it must assume a certain starting position. My problems with this thing may stem from the fact that I've wired the TEC the wrong way 'round to start with. Can you enlighten?
Peter