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RE: Current sensing, etc

From:   Ken Olum[SMTP:kdo cosmos5 phy tufts edu]
Sent:   Monday, January 04, 1999 1:54 PM
To:     elec-trak cosmos5 phy tufts edu
Subject:        Re: Current sensing, etc

   From: "Naugler, Steve" <SNaugler Rodel com>
   Date: Mon, 4 Jan 1999 12:54:30 -0500 

   There are now clamp on hall effect AC/DC curent sensors.  These
   are  generally expensive and subject to zero drift on DC measurements.

For those that are interested in such things, I'm very happy with the
Wavetek CT-237.  I believe it is the hall effect sensor with the best
resolution (30mA).  It has scales for 20 and 200A.  I paid a little
over $200 for mine.


I got one from Fluke for $90, but I get a price break through Ford.  
Nulling (zeroing the offset) takes about 2 seconds.

Larry Elie