Pyro Calibration?

[FMJ]

I have an Isspro pyro gauge that I want to check for proper calibration. Anyone know the voltage level that the unpowered, K?, thermocouple puts out at 1200 degrees?

All I could find is this:
ISSPRO Product Categories

But I have a DC power supply, so if I knew the proper voltage I could check for calibration.

Thanks,
Ed

 

[cranetruck]

Do a google search using "mv/deg" and "k-type" thermocouple for plenty of hits......

 

[FMJ]

Thanks Bjorn!

http://www.google.com/search?hl=en&q=k-type+mv%2Fdeg+isspro

26.03 mV @1200 Deg.

 

[Boatcarpenter]

FMJ
The resistance in the leadwires should be 0.23 ohms per foot per wire for starters. If you don't get that check for oil, grease or looseness at the terminals. The pyrometer is calibrated for use with 6 to 15 foot leadwires. At least that is what it says in my instructions.
Maybe helps, maybe not, but that's what I can tell ya!!
BC

 

[FMJ]

Hmmm, going to need to add that to the calc I guess.

Unless they (Isspro) already did, but then the numbers for a 6, and a 15 should be different?

 

[Boatcarpenter]

FMJ- don't know the answer to your query about different resistance for different lengths.
Attached the instructions that came with my unit. Perhaps that is part of the reason they say the accuracy of the system will be within 2% at 1200 deg. under average operating conditions.
Open in new window and you can probably read it.
BC