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The utility model has the functions of positive and negative active power, combined active power and electric energy metering and storage；
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Using the automatic software calibration technology, the table is simple, fast, high accuracy.

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The design and construction of the electric energy meter can ensure that it does not cause any danger under the rated condition；
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Through the infrared interface and the RS485 interface, respectively, to communicate with the handheld computer and PC machine to complete the programming and meter reading.

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The utility model has the functions of positive and negative active power and four quadrant reactive energy metering, and can be combined with active power and reactive power；
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With phase separation active power metering function.

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The positive and negative active power can be measured accurately, and the active power can be accumulated according to the positive electric energy；
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The use of ordinary contact IC card, the electric energy meter parameters set, pre stored power

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Show the trend of change, the reading is convenient；
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Bolt fastening installation；
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Display the measured trend of change, reading convenience

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Show the trend of change, the reading is convenient;
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Transparent organic glass；
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High mechanical strength, high measuring accuracy.

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Mainly by the sampling circuit, power supply circuit, display circuit, function module circuit, DC voltage and current measurement in power system, AC voltage, current, power, reactive power, power factor, frequency etc.；
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High measurement accuracy.

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Mainly by the sampling circuit, power supply circuit, display circuit, function module circuit, DC voltage and current measurement in power system, AC voltage, current, power, reactive power, power factor, frequency etc.；
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High measurement accuracy.