Posted by:
markg
at Mon Dec 1 10:31:58 2003 [ Email Message ] [ Show All Posts by markg ]
The 0-10V out is a DC voltage proportional to the temperature range of -30F to 220F = 0-10 VDC. It is used to drive a panel meter or strip chart for temp monitoring and is not for the Ranco to control temperature.
I have the ETC 3ZP77 and it is NOT proportional control, nor are any of ETC models I saw on Grainger's catalog, whether it be the 3ZP78, 80, 81, etc. Yes some have the proportional 0-10v output for monitoring. To use this 0-10v out for control would require another controller that is proportional (which defeats the purpose of calling the Ranco proportional.) I need to ask that guy the model #, because this is very misleading to folks to say the ETC models are proportional when in fact the ones I saw and have are not.
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