How digital meters work
There are several types of digital meters. The older model contains a similar mechanical system that measures the current from the service wire to the building, but it also has an analog-to-digital converter (ADC) that converts the measurement results to digital signals.
A new type of digital electricity meter has an AC (alternating current) sensor for detecting the voltage and amperage in the input wire. This type of digital meter is more suitable for picking up all the power in the circuit, making it more accurate than the mechanical or ADC type.
The digital electric meter has a digital display instead of a dial pad. You or a service person can manually read the electronic display on the surface of the electric meter, or you can send the signal to a utility company through a high-frequency signal, which is sent again. Back to the utility company. The company is on the wire. In some types of digital meters, passing service vehicles with appropriate equipment can "read" the meter through the radio frequency signal emitted by the meter.
If a home or business is equipped with solar panels or wind turbines and these turbines retransmit electrical energy to the grid, the digital meter will record the net usage. The meter tracks the direction of energy flow, which can be read on the meter surface in a "transmitted" or "received" way.
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