On 2012-05-30, Gunner Asch wrote:
On Tue, 29 May 2012 19:53:23 -0500, dpb wrote:

On 5/29/2012 6:46 PM, Gunner Asch wrote:
On Tue, 29 May 2012 14:41:08 -0500, Jon wrote:
...

OOps, those are Platinum resistance temp. detectors, NOT
thermocouples.
...
and the difference is?
...

A thermocouple is a twin-lead junction of two dissimilar metals that
generates a voltage differential as a function of temperature changes
("the thermoelectric effect").

A resistance temperature detector (RTD, commonly) is a single
material/alloy whose resistance varies w/ temperature.

In the former one measures the generated voltage; in the later one
measures resistance. Each then uses a calibration curve to relate the
output to temperature.

So what do I have?

You appear to have the variable resistor type. Most controllers
should handle them. The voltage generator type would need some other
metal as half of the sensor element.

Not much that I can trim in this followup and keep the context for
other readers. Sorry.

Good Luck,
DoN.

--
Remove oil spill source from e-mail
Email: | Voice (all times): (703) 938-4564
(too) near Washington D.C. | http://www.d-and-d.com/dnichols/DoN.html
--- Black Holes are where God is dividing by zero ---