METEOROLOGICAL INSTRUMENTS INSTRUCTIONS ULTRASONIC ANEMOMETER MODEL 85000 R.M. YOUNG COMPANY 2801 AERO PARK DRIVE, TRAVERSE CITY, MICHIGAN 49686, USA TEL: (231) 946-3980 FAX: (231) 946-4772 WEB: www.youngusa.
OPERATING INSTRUCTIONS Model 85000 Ultrasonic Anemometer Contents SECTION DESCRIPTION 1.0 SPECIFICATIONS 1 2.0 INTRODUCTION 1 3.0 INITIAL CHECKOUT 1 4.0 4.1 4.2 4.3 4.4 INSTALLATION Placement Mounting and Alignment Wiring Connections Power Requirement 2 2 2 2 2 5.0 5.1 5.2 5.3 5.
MODEL 85000 ULTRASONIC ANEMOMETER 2.0 INTRODUCTION The YOUNG 85000 Ultrasonic Anemometer is a 2-axis, nomoving-parts wind sensor. It is ideal for general meteorological applications requiring accurate and reliable measurement. The sensor features wide operating range, compact size, easy installation and low power operation. Analog and digital signal outputs are available in several popular formats. The 85000 measures wind based on the transit time of ultrasonic pulses between four transducers.
IMPORTANT: The Wind Tracker input option must be set to "INP 09". See the Wind Tracker manual for setting this option. 3.2 Apply power to the Wind Tracker and sensor. There will be a 5 second delay for initialization after which the unit will begin to send data. Wind speed and wind direction values will appear on the Wind Tracker. The sensor wind speed threshold is preset to 0.25 m/s (0.6 mph). Wind below this level is displayed as zero.
5.3.2 ASCII ASCII output provides continuous wind measurement data in text format. Between each measurement cycle, the sensor goes into a low power mode. There are a number of parameters related to the ASCII serial output format which may be altered. Please note that the default values are recommended for most applications. Careful analysis of the sensor's application should be done prior to making changes due to the interaction of parameters such as OUTPUT DELAY and SAMPLE COUNT. See section 6.0.
aD0! where: a ddd www.w ±uu.uu ±vv.vv 6.0 SETTING OUTPUTS AND OPERATING PARAMETERS a+www.w+ddd a±uu.uu±vv.vv = Sensor address = Wind direction (degrees) = Wind speed (selected units) = U-axis wind speed (m/s) = V-axis wind speed (m/s) = CRC checksum (only where requested) = Carriage return, line feed (ASCII 13, 10) 6.
Although new parameter values are stored immediately when the command is issued, they do not take effect until the sensor enters OPERATE MODE.
The default value is 4. When set to 00, no damping is applied. Higher damping factors slow the rate at which the sensor indicates wind changes. 6.4.10 SET10nnn SET OUTPUT DELAY Sets the amount of time between measurements in increments of 8.192 milliseconds. The default value is 122 ( 0.9994 seconds). Lower values (less delay) increase power consumption when continuous measurements are taken. 6.4.11 SET11nn SET DIRECTION VOUT Sets wind direction voltage output scale to 0-360 or 0-540 degrees.
8.0 WARRANTY This product is warranted to be free of defects in materials and construction for a period of 12 months from date of initial purchase. Liability is limited to repair or replacement of defective item. A copy of the warranty policy may be obtained from R. M. Young Company. Declaration of Conformity 9.0 CE COMPLIANCE Model 85000 This product has been tested and shown to comply with European CE requirements for the EMC Directive. Please note that shielded cable must be used. R. M.
APPENDIX A: WIRING CONNECTIONS 85000-90 Page 8
APPENDIX A: WIRING CONNECTIONS 85000-90 Page 9
APPENDIX A: WIRING CONNECTIONS 85000-90 Page 10
APPENDIX A: WIRING CONNECTIONS 85000-90 Page 11
APPENDIX A: WIRING CONNECTIONS 85000-90 Page 12
APPENDIX B: SENSOR ORIENTATION AND DIMENSIONS MODEL 85000 ULTRASONIC ANEMOMETER +V (WIND FROM NORTH) NORTH 0° EXAMPLE: WIND AT 45° 90° 270° +U (WIND FROM EAST) TOP VIEW 180° CARTESIAN POLAR (U-V) (WIND SPEED, WIND DIRECTION) 170 [6.7] OPTIONAL: 85052 BIRD WIRE ASSY 347 [13.7] WHEN PROPERLY ALIGNED, JUNCTION BOX FACES SOUTH MOUNTING DEPTH 114 [4.5] MOUNTING: STANDARD 1" NPT PIPE Ø34.0 [1.32] ORIENTATION RING FRONT VIEW INSTALL VERTICALLY AS SHOWN TO AVOID MOISTURE DAMAGE TO CIRCUITRY.
