Don Hoskisson on wed 7 nov 01
Northern Tool & Equipment has Digital Multimeters. We purchased
one for $19.95 and one for $16.95. They work very well.
Northern Tool & Equipment: 1-800-556-7885, NothernTool.com
I too charted the number readings to temperature. That was when
the first digital pyrometers came out with the big price tag. I used
the multimeter for about $950 less than using the digital pyrometer.
It makes raku firing very precise. Good for ^10 too.
Don (25 miles south of Nils in Oregon)
>From: Maggie Woodhead, maggiew@CLEAR.NET.NZ
>Reply-To: Ceramic Arts Discussion List, CLAYART@LSV.CERAMICS.ORG
>To: CLAYART@LSV.CERAMICS.ORG
>
>Hello Clayarters and Kia Ora,
>
>Have already been asked about the meter I am using and have to tell you we
>bought two meters on a Special at Dick Smith in Nelson (Radioshack) for
>$30.00
>NZ the two. I think that is about $12.00 US. You should be able to get them
>for not more than $8.00 US.
>----Best Wishes Maggie----
Maggie Woodhead on wed 7 nov 01
Hello Clayarters and Kia Ora,
Have already been asked about the meter I am using and have to tell you we
bought two meters on a Special at Dick Smith in Nelson (Radioshack) for $30.00
NZ the two. I think that is about $12.00 US. You should be able to get them
for not more than $8.00 US.
----Best Wishes Maggie----
maggiew@clear.net.nz
Lorraine Pierce on thu 8 nov 01
Hi Don...I am not familiar with multimeters...can you explain exactly how to
use one? Where to insert it...how long to leave it there, etc. Thanks, Lori
Pierce in New Port Richey Fl.
Don Hoskisson on thu 8 nov 01
>From: Lorraine Pierce, lorinfla@MICROD.COM
>Reply-To: Ceramic Arts Discussion List, CLAYART@LSV.CERAMICS.ORG
>To: CLAYART@LSV.CERAMICS.ORG
>
>Hi Don...I am not familiar with multimeters...can you explain exactly how to
>use one? Where to insert it...how long to leave it there, etc. Thanks, Lori
>Pierce in New Port Richey Fl.
Lori,
A pyrometer system consists of a thermocouple and wires to a "voltmeter."
The termocouple is the unit that penetrates the kiln wall. The touching
two dissimilar metal wires create an electrical current that increases
with
heat. The multimeter reads the electrical current level and gives a
reading,
the digital as numbers, the analog as a needle gage. The multimeter is
a meter that reads several voltage/amp ranges. I t usually includes oms
(resistance) as well. A pyrometer is just a "voltmeter" with the numbers
expressed as temperature.
Don Hoskisson
Western Oregon University
Flames welcome from real electricians.
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