Non-contact thermometers

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Ohio3Wheels
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Non-contact thermometers

Post by Ohio3Wheels »

Any body have experience using a non-contact thermometer for checking the pot temps when casting. I have a Ryobi unit and am thinking of giving it try next time I heat a pot of metal. I have a Lyman analog thermometer i can compare it to. Wonder if anyone else has tried one.

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Re: Non-contact thermometers

Post by johnfrommd »

Hi, new member, first post.

I have tried it and they don't work. Some one on the cast boolets forum explained why but it was pretty technical.

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Re: Non-contact thermometers

Post by Okie44 »

Molten lead is too shiny.
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Re: Non-contact thermometers

Post by Maximumbob54 »

The surface won't be the same temp as below surrounded by coils. No idea on why the unit wouldn't take a reading.
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Re: Non-contact thermometers

Post by GasGuzzler »

Like Okie and others have said, the refraction of the beam from the sheen goofs it.
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Re: Non-contact thermometers

Post by parson48 »

Somebody posted about floating a penny on the surface of the melt as a focal point for using these thermometers.

I'm not vouching for the validity of this method, just passing it along.
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Re: Non-contact thermometers

Post by Ohio3Wheels »

If I can remember next time I heat the pot I'll give it a try.

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Re: Non-contact thermometers

Post by GasGuzzler »

I'm going PID with help but I happen to have an infrared thermometer and even a penny so....
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Re: Non-contact thermometers

Post by Ohio3Wheels »

Wish I could find a reasonable way to control y gas pot with a PID. It would be nice.

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Re: Non-contact thermometers

Post by GasGuzzler »

I use gas for smelting.
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