85004 RM Young 2D Ultrasonic Anemometer (heated)
Reliable wind measurement no moving parts
weather applications supported water applications supported energy applications supported gas flux & turbulence applications supported infrastructure applications supported soil applications supported

Overview

The R.M. Young Model 85004-L Ultrasonic Anemometer is a 2-axis, no-moving-parts wind sensor. It is ideal for general meteorological applications requiring accurate, reliable wind measurement. Heaters integrated into the transducers and housing enhance performance in cold conditions.

The sensor features durable, corrosion-resistant construction with opposing pairs of ultrasonic transducers secured in a streamlined molded frame. The 85004-L is fully wind-tunnel tested and calibrated to provide accurate wind measurement over a wide operating range.

The "-L" on a product model indicates that the cable length is specified at the time of order.

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Technical Description

The standard sensor offers a variety of useful output options. Analog voltage outputs are provided for wind speed and wind direction. A variety of serial output formats are also available on the standard sensor. These include ASCII text, RMYT (compatible with R.M Young displays), NMEA and SDI-12 formats.

The sensor installs on readily available 1 inch (IPS) pipe. Wiring connections are made in a convenient weatherproof junction box; special connectors and cables are not required.

Specifications

Wind Speed:

  • 0 to 60 m/s (0 to 134 mph)
  • Resolution: 0.01 m/s
  • Threshold: 0.01 m/s
  • Accuracy: ± 3% or ± 0.1 m/s (greater of)

Wind Direction:

  • 0 to 360 degrees
  • Resolution: 1 degree
  • Accuracy: ±3 degrees

General:

  • Serial Output: RS-232 or RS-485, 1 Hz
  • Formats: ASCII Text, RMYT, NMEA, SDI-12
  • Baud Rates: 1200 to 38400
  • Units: m/s, MPH, Knots, Km/hr
  • Analog Voltage Outputs:

Wind Speed: 0 to 5000 mV (0-60 m/s)
Wind Direction: 0 to 5000 mV (0-540°)

  • Power Requirement:

9 to 16 VDC, 40 mA

Heater 22-26 VDC, 60W Max

  • Operating Temperature: -50 to +50 °C
  • Dimensions: 34cm high x 17cm wide
  • Weight: Weight: 0.7 kg (1.5 lb)
  • Shipping Weight: 1.6 kg (3.5 lb)

Compatibility

Mounting

The Ultrasonic Wind Monitor can be attached to a CM202, CM204, or CM206 crossarm via a CM220 Right Angle Mounting Bracket. Alternatively, the Wind Monitors can be attached to the top of our stainless-steel tripods via the CM216 Sensor Mounting Kit.

Datalogger Considerations

CR200(X) Series CR800/CR850 CR1000 CR3000 CR5000 CR7X CR9000X
✝ ✝

✝ Datalogger is only compatible when using SDI-12