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    首頁產(chǎn)品索引ATM90E25

    ATM90E25

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    ATM90E25

     

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    產(chǎn)品信息

    The ATM90E25 is a high-performance energy metering device for single-phase two-wire, single-phase three-wire or anti-tampering energy meters. With the measurement function, the ATM90E25 can also be used in power instruments which need to measure voltage, current, etc.

    Fully compliant with IEC standard IEC62052-11 and IEC62053-21Applicable to class 1 or class 2 single-phase watt-hour meterAccuracy of 0.1% for active energy and 0.2% for reactive energy over a dynamic range of 5000:1Temperature coefficient is 15ppm/??C (typical) for on-chip reference voltageElectrical parameters measurement: less than ??0.5% fiducial error for Vrms, Irms, mean active/apparent power, frequency, power factor and phase angleStandard 4-wire/simplified 3-wire SPI interfaceDedicated ADC and different gains for L line and N line current sampling circuitsCurrent sampled over shunt resistor or Current Transformer (CT)Voltage sampled over resistor divider network or Potential Transformer (PT)Programmable L line and/or N line metering modesAnti-tampering mode (larger power)L line mode (fixed L line)L+N mode (applicable for single-phase three-wire system)Flexible mode (configure through register)Voltage channel (when gain is '1'): 120??Vrms~600mVrmsL line current channel (when gain is '24'): 5??Vrms~25mVrmsN line current channel (when gain is '1'): 120??Vrms~600mVrms

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