[TheForge] more gas (the propane kind)

Mon Apr 21 23:31:00 2003

On the other hand, my 14 gauge thermocouple has lasted for years of 
occasional use with no sign of erosion.

Steve Smith

Paul Hewitt wrote:
> There are much cheaper industrial temperature probes etc.
> 
> Look for Omron temperature controls, in the Newark catalog.  Sensors for
> these controls can be as simple a piece of thermocouple wire (about 2.00 a
> foot)  The best probe is one that's stainless steel preferable a solid piece
> like I use about 3" long.  I then mechanically attach the glass coated
> thermocouple wire to the piece of stainless about 2/3 of the way through my
> refractory this protects the thermo couple and gives in a reading that's "no
> shock"  basically that means the junction of the thermocouple is not
> directly in the heat source where it can be damaged.  I will get the Omron
> number later and post it, they used to be around 100.00 and have outputs etc
> that could be used to shut down an electric gas valve should something over
> heat during a heat treat operation etc.
> 
> 
> 
> Paul
> 
> 
> ----- Original Message -----
> From: "Steve Smith" <[email protected]>
> To: <[email protected]>
> Sent: Monday, April 21, 2003 8:15 PM
> Subject: Re: [TheForge] more gas (the propane kind)
> 
> 
> 
>>As another mentioned, Omega makes pretty reasonable stuff. A type K
>>thermocouple works well at forge temperatures (to the kind of accuracy
>>we need, anyway) despite being technically beyond it's use range. Get
>>heavy gauge wire for the thermocouple and it will last much longer.
>>Omega will make one up for you for not too much money. One caution, make
>>sure that whatever meter you use will reach the temps you want to
>>measure; the less expensive ones leave off the top end of the scale
>>(might only go up to 1500F or something).
>>
>>Steve Smith
>>
>>Sheldon Laing wrote:
>>
>>
>>>I would also like to install a temperature reading device one the forge
>>>with the probes inserted into the forge chamber. Can I put these probes
>>>just anywhere inside the forge chamber and once again any website
>>>relating to this would be a help. Also if there are any particular
>>>brands of thermometers that are made for a forge/furnace situation, what
>>>are they and what sort of price tag am I looking at?
>>>
>>>Looking forward to your responses,
>>>Sheldon Laing
>>>Hephaestus Forge
>>>Cape Town
>>>South Africa
>>>[email protected]
>>>
>>>
>>>
>>>
>>>
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>>
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> 
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