[TheForge] K thermocouple

[Grover Richardson]

Reference table is at http://www.omega.com/temperature/Z/pdf/z204-206.pdf

If using an analog meter, it's simple to take the meter front off and glue
on a new face.  Do a drawing in AutoCAD or whatever you feel comfortable
with, and make a custom scale.  I did that several times for side work.
Even put their company name on the meter face.

 

>*>-----Original Message-----
>*>From: theforge-bounces at mailman.qth.net 
>*>[mailto:theforge-bounces at mailman.qth.net] On Behalf Of Bruce Freeman
>*>Sent: Friday, November 18, 2005 10:09 AM
>*>To: theforge at mailman.qth.net
>*>Subject: RE: [TheForge] K thermocouple
>*>
>*>
>*>Chris,
>*>A must is the thermocouple table for the type-K 
>*>thermocouple. Ideally, you will use two identical 
>*>thermocouples, back-to back (so to speak), and put one of 
>*>them (the "reference junction") in an ice bath. A close 
>*>second is to leave the reference junction at room 
>*>temperature and to subtract that temperature (directly if 
>*>using Celsius, or subtract then add back 32F, if using 
>*>Fahrenheit) from the reading from the table. For furnace 
>*>temperatures, you can skip the reference junction altogether 
>*>and measure directly, and your error will probably be so 
>*>slight as not to matter to you. Connect one lead to the 
>*>positive pole of the meter, the other to the negative.  
>*>Ignore the sign of the mV reading.  (Or, flip the leads 
>*>around if you prefer.)  You'll read some value in mV.  Go to 
>*>the thermocouple table and read what that means in degrees C 
>*>or F. Bruce NJ
>*>
>*>>>> crimsonkil at lycos.com 11/17/2005 7:09:33 PM >>>
>*>Thanks Mark,
>*>      Should have mentioned that I can make the electrical 
>*>connections, just trying to find how to interpret the 
>*>multimeter readings.
>*>
>*>-Chris K.
>*>
>*>----- Original Message -----
>*>From: "Mark A. Pesetsky" <pesetsky at Princeton.EDU>
>*>To: "'Sponsored by ABANA'" <theforge at mailman.qth.net>
>*>Subject: RE: [TheForge] K thermocouple
>*>Date: Thu, 17 Nov 2005 19:02:55 -0500
>*>
>*>> 
>*>> With one of these:
>*>> 
>*>> http://www.newportus.com/images/products/k4p8.GIF
>*>> 
>*>> Mark
>*>> 
>*>> 
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