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Digital Panel Meter-ICL 7107 based, circuit for AC line voltage measurement.

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arbj2

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Hi,

I usually buy digital panel meter for measurement of AC line voltages (90- 250 VAC), from New Delhi, India.

These are open frame type, and consist of an ICL 7107 and 3 seven segment digits and some passives. The panel meter needs to be connected to a small transformer and the voltage sense pins are given directly to the line voltage that is to be measured.

I would like to know have the circuit diagram for such a unit.

I could always trace it myself, but If the circuit is readily available it would be very helpful indeed. I have looked in the internet but they do not give one specifically for AC line voltage measurement.

thanks
a
 

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