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    3-Cup Anemometer, 0~30 m/s Wind Speed, RS 485 Output

    Affordable price anemometer for sale, 3-cup type. Wind speed measurement range 0~30 m/s, optional output signal pulse, 4-20mA, RS-485, 0-2V/5V/10V, power supply DC 5-24V or 12-24V, accuracy ± (0.3 + 0.03V) m/s, ingress protection IP65. Wind speed sensor measures air velocity, outputs voltage and current signals by electromagnetic induction.
    SKU: ATO-3CAM-030
    Free Shipping Worldwide
    Delivery date: 6-12 days

    The three-cup anemometer is specifically designed to accurately and reliably measure wind velocity under the adverse environmental conditions. Output signals include pulse, current 4-20mA, RS-485, voltage 0-2V/5V/10V. The wind speed sensor has built-in digital circuit, with strong anti-RFI and EMI ability and automatic temperature compensation function. Measurement value and horizontal wind speed are linear relation.


    Model ATO-RK100-01
    Output Signal (Optional) Pulses 4-20mA RS-485 0-2V/ 0-5V/ 0-10V
    Power Supply DC 5-24V DC 12-24V DC 12-24V DC 12-24V
    Load Capacity >2kΩ <500Ω - >2kΩ
    Wind Speed Range 0~30 m/s
    Accuracy ± (0.3 + 0.03V) m/s (V is the current wind speed)
    Response Time <1s
    Starting Threshold <0.3 m/s
    Limit Wind Speed 70 m/s
    Ingress Protection IP65
    Operating Temperature -30 ~ +70℃
    Net Weight 240g
    Dimension Cup rotor: Ф 220mm, Height: 175mm
    Main Material Cup: 304 stainless steel, main body: aluminum alloy
    Finish Polyester powder electrostatic spraying (black))
    Storage Condition 10~60℃ @ 20%-90% RH


    • Shell of the 3-cup anemometer is made of high-strength aluminum alloy, wind cups are made of 304 stainless steel, and the PCB board is coated with anti-corrosion coating. Waterproof and corrosion resistant.
    • The wind speed sensor has a sealing ring inside and at the rotating position, which has good sealing performance and prevents water, salt spray and dust from entering.
    • The three-cup air velocity meter has low starting threshold, strong corrosion resistant ability, massive all-metal construction, easy Installation.

    3-Cup Anemometer Output Characteristics

    • Pulses Output

    Characteristic transfer function:

    V = 0.667*F

    (where V = wind speed (m/s), F = output frequency (Hz) )

    0~30 m/s 3-Cup Anemometer Output Pulses Characteristics

    • Current Output

    0~30 m/s 3-Cup Anemometer Output Current Characteristics

    • Voltage Output

    Characteristic transfer function:

    V = U/ (full scale voltage - zero point voltage) * 30

    (where V = wind speed (m/s), U = output voltage (V) )

    • RS-485 Output

    lf the transmission distance is over 100m, please add a 120Q terminal matching resistances on the front endand back end of bus interface respectively. See the modbus communication protocol specification.

    3-Cup Anemometer Dimension Diagram (Unit: mm)

    Dimension diagram of 3-Cup Anemometer, 0~30 m/s Wind Speed, RS 485 Output

    Tips: 4-20mA output signal conversion calculation for 3-cup anemometer.

    When the 3-cup anemometer range is 0~30 m/s and the output is 4~20mA, if the output signal is 12mA, how to calculate the current wind speed value?

    The span of this wind speed range is 30m/s, expressed by 16mA current signal,
    30 m/s ÷ 16mA = 1.875/mA, that is, a current of 1mA represents a wind speed change of 1.875m/s.

    The measured value is 12mA - 4mA = 8mA. 8mA*1.875m/s /mA = 15m/s. The current wind speed is 15m/s. The calculation formula is:

    Wind speed = 1.875*current - 7.5, current value unit is mA.

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