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TerranceWednesday, September 4, 2013. Midtronics A018 current clamp pinout and signal. Bought a 2nd handed Midtronics A018 DC/AC clamp (Midtronics calls it Midtronics MDT-A018 Inductive Amp Clamp) to build a low cost DCA/ACA clamp meter. The connector of it is a Neutrik RJ45 with aluminum housing. Analysis of the circuit. Looks like some instrumental amplifier structure, final stage gain can be switched by analog switch. 2 Hall effect sensors and ring magnetic core can eliminate earth magnetic field. Oscilloscop...
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