HE current transducer CSLA1CD in power monitor

[abuu]

Hall Effect CT

Hello,
I am using HE current transducer CSLA1CD in my power monitor, but i am not sure how to do calibration or "current vs sensor output" graph. can anyone direct me how to do this.
thanks

 

[IanP]

Re: Hall Effect CT

The easiest way to calibrate this sensor is to use, say, 1A dc current and initially take two measurements: one with 1 turn and one with 50 turns ..

According to the data sheet, you should read ≈ [Vcc/2 +49.6mV] / 1 turn / 1A .. @12Vdc ..

So, with 1 turn and 1A the reading should be somewhere around 6050mV, whereas the reading with 50 turns should be close to 8500mV ..
Now you can reverse the current and the readings should be 5950mV (1turn) and 3500mV (50turns) ..

Of course, you can use different constant current source and/or different number of turns, it's up to you ..

Rgds,
IanP

 

[abuu]

OK thanks,
I will try to work on that.