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Old 11-06-2009, 04:46 PM   #1
Jul 2009
Posts: 68
Liked 2 Times on 2 Posts

The probe that came with my Love TS 13010 has blue and red wire leads. Does it matter which probe wires i am putting into (1) or (2) on the controller?
i've heard that if you stick it in backwards you'll either get gobbily goop, or a negative reading, i.e. -65F.

From Cole-Parmer, the probe is:

-1.5" (4 cm) thermistor (100Ω at 25C) with 5 ft (1.5 m) cable (included)

-The thermistor is a PTC type.

i Have blue in (1) and red in (2)
It seems to be working A-Ok right now, but i wanted to double check without having to switch the polarity.
So am i good to forget about it, or do i need to switch?

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Old 11-06-2009, 05:03 PM   #2
lamarguy's Avatar
Aug 2008
Austin, TX
Posts: 1,653
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It's a thermistor...There is no concept of polarity.
Doggfather Brewery

Planned: Lambic, American IPA
Fermenting: 6 gals of 1.090 stout (Belgian) & 6 gals of 1.090 stout (English)
Tapped: Berliner Weisse, Black English IPA, German Pils, & Live Oak Primus

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Old 11-06-2009, 06:10 PM   #3
Brewers Hardware
Dec 2008
Huntington Beach, CA, 92649
Posts: 453
Liked 7 Times on 6 Posts

Originally Posted by lamarguy View Post
It's a thermistor...There is no concept of polarity.
Like Lamarguy said, doesn't matter. It's just a resistor that varies resistance based on temperature, hence the name 'thermistor'

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