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Single Phase Multifunctional Power Instrument from China Suppliers | High-Precision Measurement Factory

Introducing our Multifunctional Power Instrument, meticulously designed to meet the electrical monitoring needs of power distribution systems. This high-precision device measures essential electrical parameters, including single-phase voltage, current, active power, reactive power, frequency, power factor, and energy. Featuring a long-life LED display for clear visibility of measurement results, this instrument is engineered for reliability, Equipped with an RS485 communication interface and utilizing the MODBUS_RTU communication protocol, our power instrument ensures seamless data communication. The four programmable keys on the instrument panel offer convenience for switching and flexible parameter settings, making it an ideal choice for various applications, As a leading supplier in China, our factory is dedicated to producing high-quality power measurement solutions that cater to the needs of diverse industries. Choose our Multifunctional Power Instrument for unparalleled performance and reliability in your electrical monitoring tasks
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    Product Details

    Product Overview

    Many kinds of extended function modules for choosing: one-channel analog quantity (0~20mA/4~20mA) output can realize the transmitting output function of electrical quantity; two-channel switching value input and two-channel switching value output to realize the local or long-range switch signal monitoring and control output function (function of "remote signaling" and "remote control"). The instrument can directly replace conventional power transmitter, measuring indicating instrument, electric energy measuring instrument and the related auxiliary unit. With modular structural design, users can choose the most economical functional configuration according to the actual requirement, which is highly cost-effective.

    • 📡 Analog Output: 1-channel 0~20mA / 4~20mA for electrical quantity transmission
    • 🔀 Switching I/O: 2-channel input & 2-channel output for remote signaling and control
    • 🔌 Direct Replacement: Replaces conventional power transmitters and energy meters
    • 🧩 Modular Design: Flexible, cost-effective configuration tailored to actual needs

    Technical Parameters

    Technical Parameters

    Index

    Input

    Network

    Single phase

    Voltage

    Rated value

    AC 0~500V

    Over load

    Consistent 1.2 times instantaneous, 2 times / 30s

    Consumption

    <0.5VA (each phase)

    Impedance

    >500kΩ

    Current

    Rated value

    AC 1A, 5A

    Over load

    Consistent: 1.2 times instantaneous, 2 times / 1s

    Impedance

    <2mΩ

    Frequency

    45–65Hz

    Output

    Communication

    Output mode

    RS485

    Protocol

    MODBUS_RTU

    Baud rate

    1200, 2400, 4800, 9600

    Analog quantity

    Channel quantity

    1 channel

    Output mode

    0–20mA, 4–20mA

    Load ability

    ≤400Ω

    Switching value

    Channel quantity

    2 channels

    Output mode

    Normally open relay contact output

    Contact capability

    AC 250V/5A, DC 30V/5A

    Switching value input

    2 channels

    Display mode

    LED (Red)

    Measuring Accuracy

    Voltage, current

    ±(0.5%FS + one digit)

    Active power, reactive power

    ±(0.5%FS + one digit)

    Frequency

    ±0.1Hz

    Power factor

    ±0.01PF

    Active energy

    ±0.5% (only for reference, not for meterage)

    Reactive energy

    ±1.0% (only for reference, not for meterage)

    Source

    Scope

    AC 220V, 50/60Hz

    Consumption

    <5VA

    Safety

    Withstand voltage

    Input and source

    >2kV 50Hz / 1min

    Input and output

    >1kV 50Hz / 1min

    Output and source

    >2kV 50Hz / 1min

    Insulating resistance

    Any two of input, output, source, casing >20MΩ

    Environment

    Temperature

    Operation: -10~50°C

    Storage: -25~70°C

    Humidity

    <85%RH, free of wet and corrosive gas

    Elevation

    ≤3000m

    Frequently Asked Questions

    ❓ What types of analog output does this instrument support?
    The instrument supports one-channel analog quantity output with two selectable modes: 0~20mA and 4~20mA. This enables it to transmit electrical quantity signals to external systems with a maximum load ability of ≤400Ω.
    ❓ What communication protocol does the instrument use?
    The instrument uses RS485 communication with the MODBUS_RTU protocol. It supports baud rates of 1200, 2400, 4800, and 9600, making it compatible with most industrial SCADA and automation systems.
    ❓ What is the measuring accuracy for voltage and current?
    The measuring accuracy for both voltage and current is ±(0.5%FS + one digit). Active and reactive power share the same accuracy level, while frequency accuracy is ±0.1Hz and power factor accuracy is ±0.01PF.
    ❓ Can this instrument replace conventional power transmitters and energy meters?
    Yes. The instrument is designed to directly replace conventional power transmitters, measuring indicating instruments, electric energy measuring instruments, and related auxiliary units, significantly simplifying system integration and reducing hardware costs.
    ❓ What are the operating environment requirements?
    The instrument operates within a temperature range of -10°C to 50°C and can be stored at -25°C to 70°C. Humidity must be below 85%RH with no wet or corrosive gas present. The maximum installation elevation is ≤3000m.
    ❓ How many switching value input and output channels are available?
    The instrument provides 2 channels of switching value input and 2 channels of switching value output. The output uses normally open relay contacts capable of handling AC 250V/5A or DC 30V/5A, supporting both local and remote signal monitoring and control.