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Thread: starting of defrost time
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26-06-2006, 09:32 AM #1
starting of defrost time
Dear experts,
Is there any new applicable technic or somehow usual device to recognize the defrost starting time of a subzero evaporator in cold room or in blast freezer?
Although I have heard a bit little somting about :
*photo-electric eyes switch
*ultrasoanic device
*barometric pressure-state&with delta(T) controller in PLC
I would be thankful if I can get advises?S.P
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