Correct me if I'm wrong but the sensor is rated for 0-10Amps AC and outputs 0-5 vdc for your microcontroller. So, 1 vdc output = 2 AC Amps through the current transformer, 1 AC Amp = 500 mV dc output, .5 AC Amps = 250 mV dc output and so on and so forth right?
Have you put your meter in line or an amp clamp on to verify the actual AC current to verify the calibration of the sensor output?
I am thinking of trying out this sensor for a project at work to interface with an Arduino Uno. Other current sensors I have tried don't seem to have the resolution I am looking for for loads below 1 Amp but also capable of handling AC voltages of 280 VAC. I am tapping into 1 phase of a 3 phase 480 VAC motor with loads below 1 Amp.
At first glance this sensor seems to flip the bill as far as being able handle the voltages and having good resolution below 1 Amp.
Oh well, I'd appreciate any success stories with this sensor interfacing with Arduino.
Thanks