Contactless thermometer

grnick50 · Feb 11, 2015

I need to take temperature measurments of the bearings of some vibrating screens. In the past we used common type K thermocouples but they have a limited life due to vibrations.
Does anyone know any contactless solution? I would imagine an infrared solution. I need it to have a 4-20 mA output.

Regards

curlyandshemp · Feb 11, 2015

http://www.exergen.com/industrial/smartirtc/

you will need the 250 ohm version.

ASF · Feb 11, 2015

IFM have some great options for analog infrared temperature sensing. I would have used one of theirs just recently, but for the fact that I needed to be measuring -20°C to -40°C and they don't have anything that goes down that low. But I don't suspect your bearing is running at -20°C.

I ended up with a Raytek MI3, which gave me quite good results.

grnick50 · Feb 12, 2015

Can you please send me a part number from IFM?

Gomez_ · Feb 12, 2015

I believe its the TW series. http://www.ifm.com/ifmus/web/tw1.htm

ASF · Feb 12, 2015

That's the one. You'll want the TW2000 (0-999.9 degrees celcius): http://www.ifm.com/products/gb/ds/TW2000.htm

Contactless thermometer

grnick50

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