CM300A clamp meter, circuit diagram

[bernardgreen]

Looking for the circuit diagram for the CM300A clamp meter.

Trying to avoid having to reverse engineer the device to enable it's repair.

It has sentimental value to it's owner so a repair would be good.

 

[conny]

Is this any help Bernard?

https://www.google.co.uk/search?q=C...&ie=&oe=#q=CM+300+clamp+meter+circuit+diagram

 

[bernardgreen]

Thanks but almost all the circuts there have active components ( transistors or ICs ), the CM300 doesn't have any active devices and can measure current without the battery inserted. So it is a purely passive circuit.