Tester for left and right threaded thermacouples

I am looking for one to test left handed and right handed threaded thermacouples.

Right! left and right handed - huh?

In the navy we used to send the new cadets for a 10 foot lenght of lubber line.

As for testing the thermo couple why not just use a milliamp meter. I had an expensive tester from Honeywell but found a digital multi meter was just as effective.

You can by these by the carton load from places like Harbor Freight. Any meter than can read from 1 milliamp up to around 3250 ma is sufficient.

Yep I had the same problem some time ago.

I had both a left hand and a right hand thread calibrator and the LH thread one broke. I could not find a replacement and learnt they were no longer manufactured. The only solution was to re-thread the thermocouple to right hand thread and then I was able to use the same calibrator for both.

This will probably be your best solution.

As far as testers go all you need a new thermocouple valve similar to the type you need to test. Then take a piece of brass hex bar put your LH thread on one end and a RH thread on the other plus drill a clearance hole down the center, then cut a slot down one side the same width as the diameter of the hole. You should be able to slip this over the thermocouple after sliding the other nut back and out of the way. you can test the thermocouple and also test the thermocouple valve with a new thermocouple. make 12 of them and away you go.

The magnet in the valve is just an assist to the thermocouple output and is not strong enough to hold the valve down.