Josef Hanzal wrote:
>
> I am just about to design a termostat controller for a chemistry laboratory
> and need to find a supplier of "selfsticking heating mats" or "heating
> strips". For the prototype I have bought one at unreasonable price $100. It
> is some kind of metal foil etched in labyrint pattern and covered with some
> heat resistant plastics. It seems to be produced by 3M, I just doubt the
> factory will supply 5 pc this year and 5 pc the next. It does not have to be
> 3M production, any other will do. Just need a low voltage type (safety rules
> do not allow above 24V AC), about 75 - 100 W.
>
> Can you recommend any source ? Europe is preferred but I believe UPS can
> deliver from everywhere. Thanks.
>
> BTW, some Dallas digital thermometer chip was mentioned on the list lately.
> What is its resolution ? I would possibly consider using this one.
>
> Josef

I have successfully used some "K" type thermocouple wire, cut to an
appropriate length to generate the temperature required.
I am currently using around 0.5mm thick stainless steel sheathed wire
and it's running at around 120 deg C.

Cheers
--
*********************************************************
Ken Parkyn                 email: K.Parkyn@sct.gu.edu.au
Electronics Workshop phone:(07)3875 7289 fax:(07)38757151
Faculty of Science and Technology
Griffith University P.O.Box 185 Nathan Qld.4111 Australia
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