Linhvct Posted May 28, 2012 Report Posted May 28, 2012 Dear: all! I'm looking for a promixity sensor or a limit switch that can operate normaly in -40 Celcius and icing enviroment. Omron's promixity sensors (E2E-X3D2-N) have been used but didn't work. They were broken when the temperature reached lower than -40 Celcius. Would anyone suggest me what sensor/switch should be used is this case? Many thanks! With kind Regards! Quote
OkiePC Posted May 29, 2012 Report Posted May 29, 2012 (edited) I think you will find -40 at the low end limit for most of the rugged sensors out there. The first one I picked:http://www.automatio...prox18mmpfk.pdf I will look around for others. We have freezers here which can get down to -50 EDIT: here's one that goes as low as -60, available in 30mm and 50mm diameters: http://www.transtech.com.au/docs/Kriz.pdf Edited May 29, 2012 by OkiePC Quote
Linhvct Posted May 31, 2012 Author Report Posted May 31, 2012 thank you! One more question: Does it work corectly in icing invironment? I used a omron's promixity sensor (E2E) that could operate in temperature range about -40 to 80 Celcius but It fail when temperature reached -35 Celcius. I found that cause of the frozen fog in evaporator room. Quote
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