Three-cup anemometer for sale online. Wind speed range 0~60 m/s, output signals pulse/4-20mA/RS-485/0-2V/5V/10V for selection. The air velocity sensor outputs voltage and current signals by electromagnetic induction, the value and horizontal wind speed are linear relation.

Specification

Features

• 3-cup anemometer has built-in digital circuit, with strong anti-RFI and EMI ability and automatic temperature compensation function.
• Shell of the wind speed sensor 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 gauge 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 anemometer 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) )

• Current Output

• 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)

Tips: 0-10V output signal conversion calculation for 0-60m/s anemometer.

3-cup anemometer wind speed range is 0~60m/s, 0-10V output. When the output signal is 5V, calculate the current wind speed value.

The span of this wind speed range is 60m/s, expressed by a 10V voltage signal,
60m/s ÷ 10V = 6m/s /V, that is, a voltage of 1V represents a wind speed change of 6m/s.

The measured value is 5V － 0V = 5V. 5V*6m/s /V = 30m/s. The current wind speed is 30m/s.

The calculation formula is:
Wind speed = 6*voltage, the unit of voltage value is V.