Use Thermistor with my Fluke 179??

hartigan · 08-January-07, 05:48 PM

Hi!

I have a Fluke 179 which came with a nice Thermocouple for measuring temps. Unfortunately the thermocouple is VERY inconvenient for measuring CPU temps due to it's size.

I'm wondering whether a thermistor that comes with most bay device temp. monitors, (like my Innovatek Fan-O-Matic PRO) could be connected to the + and - sockets on my Fluke 179 and provide accurate readings.

I know I could simply test this using a glass of Ice Water but, I was hoping someone could provide a definite answer before I went through the effort.

TIA

-hartigan

Slaymate · 08-January-07, 06:39 PM

Testing it yourself would be your best bet. Unless someone just
happens to have your exact same model and the same spare probe.
I watched Cpt.Planet's Dry Ice live video feed and bought one like his
so I would know who had the same stuff :-)

Iateronmly · 08-January-07, 06:44 PM

You need a Type K Thermocoupler for a Fluke meter.

Thermocouples - type K thermocouple sensors

You can find them at a lot of different places though. That's just the first example I could find.

ADD: I'll save you the hassle - no it won't work. But you can find type K's in all different styles.

Cpt.Planet · 08-January-07, 07:20 PM

Quote:

Originally Posted by Iateronmly


	You need a Type K Thermocoupler for a Fluke meter. Thermocouples - type K thermocouple sensors You can find them at a lot of different places though. That's just the first example I could find. ADD: I'll save you the hassle - no it won't work. But you can find type K's in all different styles.

It is worth a shot. I have one similar to him. I also have a K type thermometer. noticed about a 2C differecne between the two. See attachments.

Slaymate · 08-January-07, 07:30 PM

You can count on Planet to show up at the right time :-)
I think he felt his name being typed :-)

hartigan · 08-January-07, 07:54 PM

Quote:

Originally Posted by Slaymate


	You can count on Planet to show up at the right time :-) I think he felt his name being typed :-)

troof.

thanks to all for the answers.

based on Iat's initial suggestion I found these, which I think will work (cue Monty Burns voice) . . . Exxxcelent. (ly)

Type K Omega .005" Wire Thermocouples

.005"!! (.13mm)

I'd almost get away with that thickness being between the core and the heatsink (but I won't try that.)

If anyone knows how well these work, I'd love some feedback.

-hartigan

Cpt.Planet · 08-January-07, 08:01 PM

Quote:

Originally Posted by hartigan


	troof. thanks to all for the answers. based on Iat's initial suggestion I found these, which I think will work (cue Monty Burns voice) . . . Exxxcelent. (ly) Type K Omega .005" Wire Thermocouples .005"!! (.13mm) I'd almost get away with that thickness being between the core and the heatsink (but I won't try that.) If anyone knows how well these work, I'd love some feedback. -hartigan

Dunno. if you buy em let me know i might buy one or two off ya

hartigan · 08-January-07, 08:11 PM

Quote:

Originally Posted by Cpt.Planet


	Dunno. if you buy em let me know i might buy one or two off ya

No Problem. I'm definitely buying them (pending any sort of bidding war) so I'll let you know how they work out and would definitely be willing to sell 1 or 2 at ebay cost (obviously.)

They list at Omega for $50.00, so these are definitely a great deal if I can keep the bid where it is.

Here's a link to the Spec .pdf for them as well: Omega Precision Fine Wire Thermocouples

-hartigan

P.S. There's also a mini-Type K male to Fluke banana plug adapter available HERE

Nerdz · 08-January-07, 09:16 PM

You can also use a LM35 and a small circuit (just a resistor and a + supply). Just put your meter on the volt range, once you have the reading in volts just do a small calc to get the temp (The final temp is in C) The whole thing shouldnt cost more than a buck or 2.

08-January-07, 05:48 PM		#1 (permalink)
hartigan Apex Tech God	Use Thermistor with my Fluke 179?? Hi! I have a Fluke 179 which came with a nice Thermocouple for measuring temps. Unfortunately the thermocouple is VERY inconvenient for measuring CPU temps due to it's size. I'm wondering whether a thermistor that comes with most bay device temp. monitors, (like my Innovatek Fan-O-Matic PRO) could be connected to the + and - sockets on my Fluke 179 and provide accurate readings. I know I could simply test this using a glass of Ice Water but, I was hoping someone could provide a definite answer before I went through the effort. TIA -hartigan

08-January-07, 06:39 PM		#2 (permalink)
Slaymate PCApex Reviewer From Hell	Re: Use Thermistor with my Fluke 179?? Testing it yourself would be your best bet. Unless someone just happens to have your exact same model and the same spare probe. I watched Cpt.Planet's Dry Ice live video feed and bought one like his so I would know who had the same stuff :-)

08-January-07, 06:44 PM		#3 (permalink)
Iateronmly Smooth Operator	Re: Use Thermistor with my Fluke 179?? You need a Type K Thermocoupler for a Fluke meter. Thermocouples - type K thermocouple sensors You can find them at a lot of different places though. That's just the first example I could find. ADD: I'll save you the hassle - no it won't work. But you can find type K's in all different styles.

08-January-07, 07:30 PM		#5 (permalink)
Slaymate PCApex Reviewer From Hell	Re: Use Thermistor with my Fluke 179?? You can count on Planet to show up at the right time :-) I think he felt his name being typed :-)

08-January-07, 09:16 PM		#9 (permalink)
Nerdz Sir Knight of Spamalot	Re: Use Thermistor with my Fluke 179?? You can also use a LM35 and a small circuit (just a resistor and a + supply). Just put your meter on the volt range, once you have the reading in volts just do a small calc to get the temp (The final temp is in C) The whole thing shouldnt cost more than a buck or 2.

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