HD53LS… Series – High Sensitivity Anemometer for Very Low Wind Speeds

Brand: Delta OHM S.R.L.

HD53LS… Series – High Sensitivity Anemometer for Very Low Wind Speeds

Brand: Delta OHM S.R.L.
HD53LS is a 2-axis ultrasonic static anemometer for measuring:
  • Wind speed and direction, U-V Cartesian components of wind speed.
  • Wind Gust (only in version with RS485 MODBUS-RTU output).
The average of wind speed and direction over a period configurable up to 10 minutes is calculated.
Two versions are available:
  • HD53LS.A: with two analog outputs (one for wind speed and one for wind direction), factory configurable among 4…20 mA (standard), 0…1 V, 0…5 V, 0…10 V (to be specified when ordering).
  • HD53LS.S: with RS485 MODBUS-RTU output.
Advantages of the HD53LS series:
  • The absence of moving parts minimizes maintenance.
  • High sensitivity for detecting very low speeds, which are not detectable by traditional methods.
  • Fast and easy installation (on ∅ 40 mm mast, optional tripod available).
  • The low power of the instrument allows installation in remote sites, with power from solar panel and battery.
  • The version with RS485 MODBUS-RTU output allows instrument networking.

Specifications

Wind Speed Sensor

  • Ultrasonic

Wind Speed Measuring Range

  • 0…50 m/s

Wind Speed Resolution

  • 0.01 m/s

Wind Speed Accuracy

  • ± 0.2 m/s or ± 2 %, the greatest (0…35 m/s) / ± 3 % (> 35 m/s)

Wind Direction Sensor

  • Ultrasonic

Wind Direction Measuring Range

  • 0…359.9°

Wind Direction Resolution

  • 0.1°

Wind Direction Accuracy

  • ± 2° RMSE from 1.0 m/s

Compass Sensor

  • Magnetic

Compass Measurement Range

  • 0…360°

Compass Resolution

  • 0.1°

Compass Accuracy

  • ± 1°

Power Supply

  • 10…30 Vdc (15…30 Vdc for version with 0÷10 V analog output)

Power Consumption

  • 26 mA @ 12 Vdc

Analog Output

  • 2 analog outputs: one for wind speed and one for wind direction (only in HD53LS.A).
  • Analog output type is 4…20 mA as standard, 0…1 V, 0…5 V or 0…10 V available on request.
  • Analog output refresh rate 1 Hz

Digital Output

  • RS-485 Modbus-RTU (only in HD53LS.S)

Averaging Interval

  • Configurable from 1 s to 10 min

Electrical Connection

  • M23 connector

Operating Temperature

  • -20…+55° C

Survival Speed

  • 90 m/s

Dimensions

  • H=179 mm, ∅=150 mm

Weight

  • 640 g approx

Housing

  • ASA with metallic parts in AISI 316

Protection Degree

  • IP66

Models matching criteria: 4
2-Axis Ultrasonic Static Anemometer. Equipped With Compass. Analog Output
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Documentation

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