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    • KARAT-520 Ultrasonic flowmeter

    KARAT-520 Ultrasonic flowmeter

    • KARAT-520 Ultrasonic flowmeter
    • Ultrasonic technology
    • Nominal flow: from 2.5 m³/h up to 40 m³/h
    • Dynamic range: R100
    • Pinpoint accuracy
    • Pulse output
    • Long life
    • Simple installation
    More

    Characteristics

    General description

    KARAT-520 is an ultrasonic flow meter intended for water consumption measurement. The flow meter has been developed on the basis of KARAT experience in ultrasonic meters production since 1994.

    KARAT-520 is also suited for consumption measurement in apartment and commercial buildings. The volume is measured using ultrasonic technique, which is proven as a long-term stable and accurate measuring principle. Two ultrasonic transducers are used to send sound signals both against and with the flow. The ultrasonic signal travelling with the flow reaches the opposite transducer first. The time difference between the two signals can be converted into flow velocity and subsequently volume.

    Ultrasonic flow measurement guarantees long life. The meter has no moving parts, meaning that there is no wear and that the meter is resistant to any impurities in water.

    KARAT-520 is powered by internal lithium battery, providing more than 5 years’ lifetime.

    Mechanical data

    Ambient temperature 1…150 °C
    Protection class IP65
    Storage temperature -25…50 °C
    Pressure stage PN16

    Meter data

    Metrological class 2
    Accuracy:
                    Q1 ≤ Q < Q2
                    Q2 ≤ Q ≤ Q4

    ± 2 %
    ± 1 %

    Electrical data

    Battery 3.6 VDC, one C cell lithium
    Battery lifetime more than 4 years
    External power supply 12…24 VDC (option)
    Type name Nominal flow,
    m³/h [Q3]
    Minimum flow,
    m³/h [Q1 ]
    Maximum flow,
    m³/h [Q4 ]
    Dynamic range Q3/Q1 Min. cut-off, l/h Length, mm
    KARAT-520-20 2.5 0.025 5.0 100 13 190
    KARAT-520-25 3.5 0.035 7.0 100 18 260
    KARAT-520-32 6.0 0.060 12.0 100 30 260
    KARAT-520-40 10.0 0.100 20.0 100 50 300
    KARAT-520-50 15.0 0.150 30.0 100 75 300
    KARAT-520-50 40.0 0.400 80.0 100 200 300

    OEM
    • We offer the following metering instruments
      under KARAT trademark
    • We offer the following metering instruments
      under YOUR trademark

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    • Smart meters
    • Apartment-level heat meter
    • Apartment-level water meter
    • Heat energy calculators
    • Flowmeter
    • Communication equipment

    KARAT FACTORY offers IoT-solutions customized for utility market.

    We introduce smart meters, technologies for integration of the LoRaWAN standard interface, as well as web-services for operation in digital networks.

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