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Old 01-25-2013, 05:43 PM   #1
Im_Lars
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Default Temp. Probe wiring question

A friend gave me three temp. probes, not sure if they are RTD (pictured below).



I thought i read before I said yes to the probes that I can wire a 4 wire probe to a 3 wire XLR connector. I searched HBT and Google and couldn't find anything. For some reason hooking the two white wires together was the answer. Can anyone help?

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Old 01-25-2013, 05:48 PM   #2
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What does the tag on them say? knowing exactly what they are would help. They could be 4 wires or they could be duplex thermocouples (each color pair is one sensor, 2 sensors for redundancy or overtemp control)

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Old 01-25-2013, 06:02 PM   #3
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Watlow
Richmond, IL.
RBJTHTA060CB120
1101
G176338

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Old 01-25-2013, 09:07 PM   #4
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I finally got someone at Watlow tech support on the phone and they verified what I thought. It is a RTD thermocoupler and I can hook the two white (neg.) together.

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Old 01-26-2013, 02:35 PM   #5
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I'm using the same probes. I think they were over $100 new but there was a seller on eBay selling them for $15. He sold out fast at that price. They will work fine. The probe length is adjustable as well

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Old 01-26-2013, 03:19 PM   #6
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SCORE!!!! Those are sweet. I never have thought about that type of covering on the wires. Hey JRems, what key word(s) did you use to find them on DBay?

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Old 01-26-2013, 03:24 PM   #7
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Does anyone know the name of the stainless steel protective cover over the wiring? Seeing if I can score that stuff off EBay for wire protection.....

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Old 01-26-2013, 04:20 PM   #8
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At $15, that is a steal!

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Old 01-28-2013, 03:45 PM   #9
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The person that gave them to me got them from this seller on ebay

http://myworld.ebay.com/red-tag-liquidators/

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