Fluke 117 temperature

[alentje]

I don't want to buy a new multimeter but i need to measure temperature with it. I have a brand new Fluke 117. What temperature probe do i need? I saw these cheap k-type ones but these won't fit in my Common and positive port.. Is there any adapter for it? How is it called? And when i connect the k-type temp. probe, how do i read the temperature, is 10mV 10 degrees celcius? And does the probe need any power?

Thanks,

    -  alentje

[Wytnucls]

You need a meter with a dedicated temperature measurement function. The Fluke 117 won't do. The Fluke 116 has the feature you're looking for.
http://en-us.fluke.com/products/digital-multimeters/fluke-116-digital-multimeter.html#fbid=jBPFDxM1Pen?techspecs

Temperature²
(Type-K thermocouple) Range/Resolution -40 °C to 400 °C / 0.1 °C
Accuracy 1% + 10²
Range/Resolution -40 °F to 752 °F / 0.2 °F

[alentje]

I heard any dmm would read temperature via the mV range

[Wytnucls]

It is possible, but then you have to purchase an adapter for your temperature probe, like this Extech gizmo:
http://www.extech.com/instruments/resources/manuals/381277_um.pdf

[han]

any multimeter can read thermocouple


but the K type thermocuple coefficient about 41 µV/°C
http://en.wikipedia.org/wiki/thermocouple


so the resolution is roughly 24 C/mV ..
so if the minimum resolution is 1mV then you get the resolution about 24 C...


if you budget tight you can make your own thermocouple tranducer, i make it with AD620 + DC-DC converter with +/- 15V out .
so you can get 1 C/mV  and put "C" sticker in the Voltmeter .


i offset the cold junction by using LM35 (and 1 to 10 divider) to the reference pin , so the output will be absolute not relative..

[Electro Detective]

Buy a second meter that has temperature and supplies a K type probe

It does not have to be a Fluke or expensive, just a decent meter with that function and a good temp spec

Two meters are better then one, always! 

If temperature measurement is your thing, consider a cheap IR lazer ray gun type thermometer too

That's the way I roll, all bases covered