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85000 RM Young 2D Ultrasonic Anemometer
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Overview

The R.M. Young Model 85000 Ultrasonic Anemometer is a 2-axis, no-moving-parts wind sensor. It is ideal for general meteorological applications requiring accurate, reliable wind measurement.

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Technical Description

The sensor features durable, corrosion-resistant construction with opposing pairs of ultrasonic transducers secured in a streamlined molded frame. The 85000 is fully wind-tunnel tested and calibrated to provide accurate wind measurement over a wide operating range.

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.

CAUTION: The 85000/85004 2D Ultrasonic Anemometer is designed to be mounted vertically with the transducers facing upwards. Mounting the sensor with an inverted orientation exposes the internal circuitry to potential moisture damage, and is not recommended.

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

Specifications

Wind Speed: 0 to 70 m/s (0 to 156 mph) 

  • Resolution: 0.1 m/s 
  • Threshold: 0.01 m/s 
  • Accuracy: 0 to 30 m/s, ±2% or 0.1m/s, 30 to 70 m/s, ±3%

Wind Direction: 0 to 360 degrees 

  • Resolution: 1 degree Accuracy: ±2 degrees 
  • Serial Output: RS-232 or RS-485, 1 Hz 
  • Formats: ASCII Text, RMYT, NMEA, SDI-12 
  • Baud Rates: 1200 to 38400 
  • Units: Km/hr, MPH, m/s,  Knots

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

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