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how to use "Tokin OHD3-80m" tharmal sensor?
how to use "Tokin OHD3-80m" tharmal sensor?
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Old 7th June 2008, 02:33 AM   #1
space2000 is offline space2000  Singapore
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Default how to use "Tokin OHD3-80m" tharmal sensor?

hi,

i have two pcs Tokin thermal sensor, part number is "OHD3-80m". anyone knows about this tharmal sensosr?

needed circuit design for it?


thank you.
michael
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Old 7th June 2008, 03:34 PM   #2
destroyer X is offline destroyer X  Brazil
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Default We need the resistance measured into your normal environment temperature

and the resistance when the thermal sensor will be under 50 degrées celsius...them, we gonna be able to create the circuit you want.

But if you have hot summer (30 degrées) and cold winter (10 degrées) this will not work properly.

So... i need the resistance into 10 degrées celsius, into 30 degrées celsius and into 50 degrées celsius to try something to you.

regards,

Carlos
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Old 7th June 2008, 03:35 PM   #3
destroyer X is offline destroyer X  Brazil
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Default This 30 degrées i suppose to be your environment average temperature during the hot


seasons..... inform your average temperature.

By the way...the Precision, using good sized heatsinks will not turn too much hot...if you are having such problems..you have problems into your circuit, for sure.

Was tested full power during hours here, under 32 degrées celsius temperature.... reached 45 degrées and stopped into this temperature.

I think danger is when you reach 60 degrées celsius..if stable into 45 it is normal while high power is beeing delivered to load.

regards,

Carlos
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