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david
10-31-2003, 10:38 AM
For what Tel Tru wants for the things they had better. $$$$$ I prefer my $1.380 thermocouple.

http://www.teltru.com/cart/browse.asp?subcat=43

I think I need an interpreter for this one. What am I reading, and how do I use it?
Oldtimer
10-31-2003, 10:58 AM
Interpretation "I'm a cheap basterd so I'm sticking with my Fluke HH51 digitil thermometer and thermocouple. The $1.380 T/C was free. Hince the price. Brian Speak for no beer. ****"
EricQ
10-31-2003, 05:31 PM
The Coopers are nice- they also have a decent digital.

Hope my Trading Post Partner likes them :mrgreen:

Thanks,

Eric
Mark
10-31-2003, 05:57 PM
I know that some of us use digital multi meters (DMM's) for electronic thermometers. I would be interested in knowing more about this.

Mark (STL)
Oldtimer
10-31-2003, 07:06 PM
I know that some of us use digital multi meters (DMM's) for electronic thermometers. I would be interested in knowing more about this.

Mark (STL)

Okay I can help with this. What kind of DMM ? There is a conversion chart at www.omega.com that tells you the reference voltage in millivolts for thermocouple type. I pulled it up this AM, it was in pdf format but was not able to save it as I was in a cluster **** at work. I use tyype K. So if there is interest I will follow through. Let me know by posting or email. fair Enough ?
willkat98
10-31-2003, 07:12 PM
I'm interested Brian.

I'm interested to find out what the fark you guys are talking about.

Are we still talking about calibrating cheapo thermometers?

I am clueless as to what your jargon means.

Let's start a Brian Technical Thrread

Did you ask Santa for a micrometer when you were a kid? :)
Oldtimer
10-31-2003, 07:34 PM
I'm interested Brian.

I'm interested to find out what the fark you guys are talking about.

Are we still talking about calibrating cheapo thermometers?

I am clueless as to what your jargon means.

Let's start a Brian Technical Thrread

Did you ask Santa for a micrometer when you were a kid? :)

Already got a micrometer. Sorry. So what do you not understand ? A thermocouple is two diffrent metal types welded to form a bead. This diffrence in metals creats a potential(voltage) which can be measured and converted to a temperature.
willkat98
10-31-2003, 08:15 PM
beaded meat. sounds tempting
Oldtimer
10-31-2003, 08:49 PM
Only with trimmed cheese.
Mark
11-01-2003, 07:10 AM
Brian:

I’ve been considering buying a decent DMM for computer testing, cooking temperature measurement, etc. I agree with Bill (I think). This would be good for our members. “Let's start a Brian Technical Thread.”

Specifically, I would like to know to convert any DMM to a thermometer via standard banana plugs and generic type K thermocouple wire (on the cheap and step-by-step). Obviously, this would lead to the “DMM to thermometer mod for the complete idiot” and should be stored in the files/mods section. How about it?

BTW; ebay has a category for multimeters
http://listings.ebay.com/aw/plistings/category25412/index.html?from=R11

and one for thermometers too
http://listings.ebay.com/aw/plistings/category50974/index.html?from=R11


Mark (STL)
Oldtimer
11-01-2003, 08:21 AM
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=2568862965&category=50974

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=2568622980&category=50974

Either one of these is a good buy run $150 at leats retail. With regards to a DMM you want ti to measure down in the millivolt range. Let me know what length you want for a Thermocouple, I will see what I can do.
Mark
11-01-2003, 10:27 AM
Brian

whatever the download was I could'nt down load it Got a link?

Mark (STL)
Oldtimer
11-01-2003, 10:44 AM
http://www.omega.com/temperature/Z/zsection.asp

Thermocouple Reference Data Type K, Deg F
Mark
11-01-2003, 11:27 AM
Lot of info to process. Head hurts already. I think I found the chart you mentioned that gives millivolt readings and corresponding temperatures
http://www.omega.com/temperature/Z/pdf/z218-220.pdf

So I'll need to print this out and laminate to the smoke chamber door to figure out what the temp is? Bottom line: seems like too much hassle don't it?

Mark (STL)
Oldtimer
11-01-2003, 12:24 PM
Think if you laminate it to smoke chamber it would be tuff to read ? :-)
Mark
11-02-2003, 06:42 AM
attached is a gif of the portion of omega's pdf that covers cooking/smoking temperatures that is readable even after numerous beers. If it appears cropped just drag the borders out some.

Mark (STL)