Thermocouple readout manual

[John PurdyParticipant @johnpurdy78347]

I realize this is a bit of a long shot, but does anyone have the user's manual for a Corning 310 Temperature Plus K type thermocouple readout unit that they could copy for me. I only need the specs. I've searched the internet to no avail.

I was casting some brass yesterday and the display changed from the temperature to showing "Er" once it reached 1770F. I swapped a different probe and it did the same. So I'm wondering if it has an upper temperature limit that it will display.

John

[John PurdyParticipant @johnpurdy78347]

[Michael GilliganParticipant @michaelgilligan61133]

It obviously doesn’t count as authoritative, John … but this ebay listing gives 1740°F

**LINK** https://www.ebay.com/itm/284020624313

[ look in the ‘detailed description’ ]

MichaelG.

[John PurdyParticipant @johnpurdy78347]

Thanks Michael, I had found that listing but was hoping for, as you say. something a little more authoritative. I tend to take things I read on ebay with a bit of a grain of salt. But it does sort of match with how it behaved.

John

[Michael GilliganParticipant @michaelgilligan61133]

Probably of no direct relevance, but, for the benefit of the forum in general …

There is a lot of useful information about thermocouples here:

**LINK**

https://www.thermocoupleinfo.com/thermocouple-types.htm

MichaelG.

[Roderick JenkinsParticipant @roderickjenkins93242]

This may help **LINK**

It gives the max temp as 950C

Rod

[Andy_GParticipant @andy_g]

This listing says the operating range is -50°C to 950°C (950°C = 1769°F)

Link

[noel shelleyParticipant @noelshelley55608]

Can't help with this specific reader, but I had one for heating engineers that went to about 950C and then becane VERY inaccurate and had to buy a higher limit type for dip pyro readings. You will need both probe and reader able to read to 1050C or 2000F for brass and 1150C or 210Ff for bronze. Some readers will go to 1340c . Noel

[John PurdyParticipant @johnpurdy78347]

Rod

Thanks for the link, it didn't show up in my internet search. That is my unit and is the info I wanted and explains its behavior. When I do brass or bronze I will have to revert to my multimeter which goes to 1320C ( or just use the mv scale and my tables ).

Noel

The probes I have are from "Omega Engineering" and are K type, 1/4" dia, Inconel sheath,15" and 24" long and are good for the max temp of the K type (1320C ). I was given the 310 readout and had only used it for aluminum so hadn't run into the units limits.

Thanks everyone for the help.

John

[Roderick JenkinsParticipant @roderickjenkins93242]

Posted by John Purdy on 23/09/2023 17:36:37:

Thanks for the link, it didn't show up in my internet search.

Duckduckgo often finds things that Google is too busy pushing revenue earners to bother with

[noel shelleyParticipant @noelshelley55608]

Hi jOHN, a 3mm K type in inconel and 500mm long will take less heat out of the melt and read much faster.. Numerous suppliers ! RS, farnell, Etc. Good luck. Noel.

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