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AC and DC Voltmeter/Ammeter with Digital Display
Digital display meters include voltmeters, ammeters, frequency meters, 4~20mA passive meters, temperature controllers, and teaching instruments for measuring the electrical signals.
Program overview
This product series is designed for 4-20mA passive meter applications. It integrates 24-bit high-precision ADC, low-noise PGIA, display driver, and other functional modules, which are suitable for high-precision meter applications. The internal integrated temperature sensor can realize temperature compensation. It integrates advanced linear calibration algorithm. Calibration operation is simple and coefficients can be stored for saving external memory.
Program advantages

  • High measurement accuracy, integrated 24-bit ADC, and stable measurement up to 0.01 level can be achieved

  • Highly integrated, single-chip solution

  • Supports low power consumption mode

  • Low impedance: ≤6R

  • Low pressure drop: ≤1.5V

High measurement accuracy, integrated 24-bit ADC, and stable measurement up to 0.01 level can be achieved

Highly integrated, single-chip solution

Supports low power consumption mode

Low impedance: ≤6R

Low pressure drop: ≤1.5V

Features

  • Display range: -19999~39999

  • Conversion rate: 3 Times per second

  • Product pressure drop: ≤1.5V

  • Loop impedance: ≤5R

  • Operating current: <1mA

  • Measuring accuracy: 0.01% FS±1 digit

  • Display mode: LCD/LED, with 8 different physical units

  • Reference voltage: 1.2V，50ppm/℃

  • Alarm output: 2-channel isolated switch alarm output

  • Temperature detection: Internal temperature detection function. Temperature compensation can be performed on the measurement results

Application diagram
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