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MODEL 86004
ULTRASONIC ANEMOMETER
1.0 SPECIFICATIONS
WIND SPEED
Range:
0-70 m/s (156 mph)
Resolution:
0.01 m/s
Accuracy:
0 to 30 m/s ±2% or 0.1 m/s
30 to 70 m/s ±3%
WIND DIRECTION
Azimuth Range:
0-360 degrees
Resolution:
0.1 degree
Accuracy:
± 2 degrees
SERIAL OUTPUT (Selectable)
Interface Type:
RS-232 or RS-485/422
Formats:
ASCII Text (polled and continuous)
RMYT (YOUNG Wind Tracker)
NMEA
Baud Rates:
1200, 4800, 9600, 19200 and 38400
ANALOG OUTPUT (Selectable)
Polar Speed:
0-5000mV or 4-20 mA (0 to 100 m/s)
Polar Direction:
0-5000mV or 4-20 mA (0 to 360° or 0 to 540°)
Cartesian UV:
0-5000mV or 4-20 mA (-100 m/s to +100 m/s)
GENERAL
Sensor:
Output rate:
0.1-20 Hz, 1 Hz typical
Power Supply:
24 VDC, 2.5A
Protection Class:
IP65
EMC Compliance: FCC Class A digital device
IEC standard 61326-1
Dimensions:
29 cm high x 11 cm wide
Weight:
0.4 kg (0.9 lb)
Shipping Weight:
1.6 kg (3.5 lb)
2.0 INTRODUCTION
The YOUNG 86004 Ultrasonic Anemometer is a 2-axis, no-
moving-parts wind sensor with integral 60 watt heater for use in
cold climates. It is ideal for general meteorological applications
requiring accurate and reliable measurement. The sensor features
wide operating range, compact size, and easy installation.
The 86004 measures wind speed and direction based on the
transit time of ultrasonic pulses between three transducers.
Measurement results are available as calibrated analog output
signals, or serial data using RS-232 or RS-485. Continuous serial
output or polled operation may be used. Serial format options
include direct connection to YOUNG Wind Tracker displays,
marine NMEA systems, data loggers, or other compatible serial
communication devices.
Operating parameters are easily set using the 86SETUP program
provided. All 86004 parameter settings are stored internally in non-
volatile memory.
The sensor is constructed using ultraviolet-stabilized thermoplastic
for superior environmental resistance. It is easily mounted on
standard 1 inch (IPS) pipe. An orientation ring preserves mounting
position when the sensor is removed.
3.0 BEFORE INSTALLATION
The 86004 arrives fully calibrated and ready to use. Unless
otherwise specified, the sensor is configured as follows:
FACTORY DEFAULT CONFIGURATION
Analog Voltage Outputs:
- Channel VI1: Wind Speed
0-5000 mV = 0-100 m/sec
- Channel VI2: Wind Direction
0-5000mV = 0-360 Deg
If using the sensor with a datalogger or other device requiring
0-5000 mV outputs, no further action is required. Simply connect
the device as shown in Appendix A, figure A1.
Other options are described in APPENDIX A. These are
a c c o m p l i s h e d u s i n g v a r i o u s j u m p e r c o m b i n a t i o n s a n d
configuring settings using the 86SETUP program available at
www.youngusa.com.
Note: Always connect and bench test a complex system
before installation in the field.
Page 1
86004-90(G)
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