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    Wattmeter ShchV120 (ShchV 120; ShchV 120)
    Wattmeter ShchV120 - a device used for measuring active, reactive power in three-phase three-wire and three-phase four-wire alternating current power grids. Also devices are displayed on the digital display of the measured value, converting it into a digital code for transmission over the RS485 interface and the analog signal to a standardized dc.
    The maximum display range of indications - from -9999 to 9999.
    Current measuring range - from 0 to 1.2 of the nominal measurement limit.
    Voltage measuring range - from 0 to 1.2 of the nominal measurement limit.
    The number of channels of analog output - 1 or 2.
    Power consumption on the food chain - less than 8W.
    Dimension s - 120 × 120 × 130 mm.
    Unit weight - 0.8 kg.
    ShchV120 wattmeters are used to monitor different types of power systems and plants, power facilities of various industries, and are designed to be mounted on boards and panels.
    Structural features ShchV120

    ShchV120  wattmeter has the ability to communicate via interface RS485, allows use in automated systems for various purposes.

    Wattmeters ShchV120 have galvanic separation of parallel and serial input circuits together, the input circuits, all circuits and power supply circuit.
    ShchV120 are multirange devices and have designs on measuring circuit, the output signals, measuring range, supply voltage, number of interfaces, color and dimensions. Apparatus additionally have programmable range of output signals.
    Specifications ShchV120

    Wattmeter ShchV120 in the permissible error of 0.5%.
    Measurement time - less than 0.1 seconds. The settling time of the analog output signal - no more than 0.5 seconds.

    Wattmeter ShchV120 uses power from the following sources:
    - Alternating current - 85V - 242V, 50Hz;
    - DC - 100V - 265V.

    ShchV120 wattmeters are designed for use in the following conditions:
    - Ambient air temperature - from -10 ᵒ C to 50 ᵒ C;
    - Relative humidity - less than 80% (at a temperature of +25 ᵒ C).

    For devices ShchV120 rate MTBF of 100,000 hours, and the average service life - 15 years.

Photos: ShchV120

ShchV120 wattmeter image.
ShchV120 wattmeter image.
ShchV120 front view (scale).
ShchV120 front view (scale).
ShchV120 side view (casing depth).
ShchV120 side view (casing depth).
ShchV120 rear view (connection).
ShchV120 rear view (connection).
ShchV120 overhead view.
ShchV120 overhead view.