Young 85106 User Manual

METEOROLOGICAL INSTRUMENTS

INSTRUCTIONS

ULTRASONIC ANEMOMETER

MODEL 85106

R.M. YOUNG COMPANY 2801 AERO PARK DRIVE, TRAVERSE CITY, MICHIGAN 49686, USA

TEL: [phone] FAX: [phone] WEB: www.youngusa.com

P/N: 85106-90

REV: F110410

OPERATING INSTRUCTIONS

Model 85106 Ultrasonic Anemometer

Contents

SECTION DESCRIPTION PAGE

1.0 SPECIFICATIONS 1

2.0 INTRODUCTION 1

3.0 INITIAL CHECKOUT 1

4.0 INSTALLATION 2

4.1 Placement 2

4.2 Mounting and Alignment 2

4.3 Wiring Connections 2

4.4 Power Requirement 2

5.0 OPERATION 2

5.1 With Wind Tracker Display 2

5.2 Voltage Outputs 2

5.3 Serial Output Formats and Protocols 2

5.4 Low Power Operation 4

6.0 SETTING SERIAL OUTPUTS AND OPERATING PARAMETERS

6.1 Setup using Young the 2DSETUP program 4

6.2 Setup using terminal Program 4

6.3 Command Overview 4

6.4 Command Details 5

7.0 EXAMPLE SETTINGS 6

7.1 Voltage Output, Minimum Power 6

7.2 RS232, Continuous ASCII, Minimum Power 6

7.3 RS232, Polled ASCII , Minimum Power 6

7.4 RS232, Polled ASCII Output 6

7.5 SDI-12 Continuous 6

7.6 SDI-12 Standby 6

8.0 WARRANTY 7

9.0 CE COMPLIANCE 7

APPENDIX

A WIRING CONNECTIONS 8

B SENSOR PHYSICAL 13

85106-90(F)

MODEL 85106

ULTRASONIC ANEMOMETER

2.0 INTRODUCTION

The YOUNG Ultrasonic Anemometer is a 2-axis, no-moving-parts
wind sensor. It is ideal for general meteorological applications
requiring accurate and reliable measurement. The sensor features
wide operating range, compact size, e asy installation and low
power operation. Analog and digital signal outputs are available in
several popular formats.

The Ultrasonic Anemometer measures wind based on the transit

time of ultrasonic pulses between four transducers. Air ow alters

the transit time which is used to calculate flow velocity. Wind
direction is determined from relative velocities along each acoustic
path.

Me a s u r e m e n t results ar e av a i lable as cali b r a t e d voltage
output signals or serial data using RS-232, RS-485, or SDI-12
connections. Continuous output or polled operation may be used.
Serial formats may be selected for direct connection to YOUNG
Wind Tr acker d isp lay s, mari ne NMEA sy ste ms, SDI -12 d ata
loggers, and ASCII serial communication programs.

Operating parameter options are selected using a simple setup
program provided. All settings are stored internally in non-volatile
memory.

The sensor i s constructed usi ng UV-stabilized the rmoplastic,
stainless steel, and anodized aluminum 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 INITIAL CHECKOUT

1.0 SPECIFICATIONS

WIND SPEED

Range: 0-70 m/s (156 mph)
Resolution: 0.1 m/s
Accuracy: 0 to 30 m/s, ±2% or 0.1m/s
30 to 70 m/s, ±3%

WIND DIRECTION

Azimuth Range: 0-360 degrees
Resolution: 1 degree
Accuracy: ± 2 degrees

SERIAL OUTPUT

Type: RS-232, RS-485, SDI-12
Formats: ASCII Text (polled and continuous)
RMYT (Wind Tracker)
NMEA
SDI-12 (v1.3)
Baud Rates: 1200, 4800, 9600, and 38400 baud

ANALOG VOLTAGE OUTPUT
Polar

Wind Speed: 0 to 5000 mV (0 to 100 m/s)
Wind Direction: 0 to 5000 mV (0 to 360° or 0 to 540°)

Cartesian (UV)

U and V: 0 to 5000 mV (-100 m/s to +100 m/s)

GENERAL

Output rate: 1 Hz typical (selectable)
Power Supply: 9 to 16 VDC,
150 mA max
Dimensions: 34 cm high x 17 cm wide
Weight: 0.7 kg (1.5 lb)
Shipping Weight: 1.6 kg (3.5 lb)

Carefully unpack the unit and inspect for physical damage. Any
damage should be reported to the shipper. The sensor arrives fully

calibrated and ready to use. As supplied, the sensor is congured

as follows:

FACTORY DEFAULT CONFIGURATION:
Serial Output:

- NMEA Format

- RS-232

- RS-485 Output Only

- 4800 baud

Analog Voltage Outputs:

- Channel V1: Wind Speed
0-5000 mV = 0-100 m/sec

- Channel V2: Wind Direction
0-5000mV = 0-360 Deg

These settings will permit direct serial connection to the Young
Model 06206 Marine Wind Tracker and connection of the voltage
outputs to a voltage measuring device or datalogger. For other
avai lable s eri al o r voltage output co nfigu rat ions re fer to th e
appropriate sections of the manual.

A simple operational check of the sensor may be performed as
follows: (Requires Model 06206 Marine Wind Tracker)

3.1 Remove j unction box cover and connect power and
si gnal wi res to te rmin als as in dica ted in WI R ING
CONNECTIONS (APPENDIX A). Supply voltage must
be 9 to 16 VDC.

IMPORTANT: The Wind Tracker input option must be

set to "SER". 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.

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85106-90

The sensor wind speed threshold is preset to 0.25 m/s

(0.6 mph). Wind below this level is displayed as zero.
The wind direction display will show the last value that
appeared when wind speed was above threshold.

3.3 Verify sensor response by using a small fan or gently
blowing through the measuring section. Move the fan to

create wind from several different directions and conrm

changes on the Wind Tracker display. Small fans and

gentle blowing create irregular ow patterns. This test is

for general checkout only.

If the Marine Wind Tracker display continuously shows "Ser Err"
then it is not receiving data from the sensor. Remove power and
check all wiring connections. If the problem cannot be corrected,
contact your YOUNG representative.

If the sensor is NOT USED with a YOUNG Marine Wind Tracker,
an alternative output must be used to check operation. For voltage
output, a voltmeter may be used as an indicator. For other serial
format s, use the wi ring d iagrams and appropr iate p aramete r
settings as a guide. See sections 5.0 and 6.0 of this manual.

IMPORTANT: NMEA, the default serial output format, transmits
AS C I I da t a . U si n g a co m m un i c at i o n pr o g ra m suc h as
HyperTerminal will allow for monitoring the serial output.

4.0 INSTALLATION

4.1 PLACEMENT

Proper instrument placement is important. Eddies from buildings,
trees, or other structu res c an in flu enc e mea sur eme nts . For
most applications , locate the sensor w ell above or upw in d of
obstructions. A s a ge neral rule, air flow around a structure is
disturbed to 2 times the height of the structure upwind, 6 times the
structure downwind, and up to 2 times the height of the structure
above ground.

4.2 MOUNTING AND ALIGNMENT

The sensor mounts to standard 1-inch (IPS) pipe with an outside
diameter of 1.34 inches (34 mm).

Generally, the sensor is aligned to north. In this orientation, the
sensor junction box faces south (180 degrees). The transducers
may be used as sighting aids. See diagram APPENDIX B.

4.2.1 Place orientation ring over pipe with guide pin up.

4.2.2 Place sensor mounting post over pipe.

4.2.3 Using the transducers as a sighting aid, align the sensor
with a feature on the horizon that represents the proper
orientation. After alignment, tighten the mounting post
band clamp to secure the position. DO NOT OVER­TIGHTEN.

4.2.4 Slide t he orienta tion ring up so it s guide p in is ful ly
engaged in the sensor mounting post notch. Tighten the
orientation ring band clamp to secure its position. DO
NOT OVER- TIGHTEN.

If the sensor needs to be removed later, leave the orientation ring
on the pipe to preserve sensor alignment.

4.3 CONNECTIONS

With long ca ble lengths, resistance in the pow er supply wires
reduces the available voltage at the sensor. Power at the sensor
must be in the range of 9 to 16 VDC when the sensor is operating.
See WIRING DIAGRAMS in APPENDIX A.

5.0 OPERATION

5.1 WITH YOUNG MARINE WIND TRACKER DISPLAY

The default serial output format is NMEA which is compatible with
the Young Model 06206 Marine Wind Tracker display. The Marine
Wind Tracker receives measurements in the form of ASCII data
via an RS-485 serial connection. The Wind Tracker automatically
converts the data to wind values which appear on the display. Set
the Wind Tracker input to 'SER'. See the Marine Wind Tracker
manual for display options.

5.2 VOLTAGE OUTPUTS

When the default NMEA format is used, analog voltage outputs are
active. These may be connected to a data logger or other device
such as the YOUNG Model 26700 Programmable Translator. See
VOLTAGE OUTPUTS in APPENDIX A for connection details and
calibration values.

Voltage outputs may be enabled with any serial output format
except SDI-12 even if the serial output connection itself is disabled.
Polar speed and direction, which is the default, or Cartesian (UV)
voltage output format may be selected. See section 6.4.13 and
APPENDIX B for additional details. The voltage output may also be
set to signal the STATUS CODE. The default setting causes VOUT
to ignore the STATUS CODE. See sections 5.3.2 and 6.4.14 for
additional details.

When cable length between voltage output terminals and data
acquisition system exceeds 3m (10 ft.), the voltage outputs should
be measured differentially.

5.3 SERIAL OUTPUT FORMATS

A variety of serial output formats are available. From the factory, it
is programmed for operation with the Young Marine Wind Tracker
display (NMEA format). Other serial formats are selected using a
PC and the Windows 2DSETUP program (2Dsetup.exe) provided.
The following sections discuss format options availabl e. Each
command is discussed in detail in section 6.0.

5.3.1 RMYT

RMYT is a 6-byte binary data format sent at 9600 baud using the
RS -485 OUTPUT ONLY connections. This format is used with the
YOUNG Model 06201 Wind Tracker.

If RMYT default param eters are use d (n o ot her paramete rs
altered), the maximum number of internal samples are always
used, measurements and outputs run continuously, voltage outputs
are enabled , and bot h RS -23 2 an d RS-485 con necti ons are
enabled. The average current consumption is about 150 mA, not
including heater power.

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.

ASCII outp ut a ppears eithe r in POL AR o r CA RT ESIAN (UV )
format. With POLAR format, the wind speed threshold and wind
speed units are selected. With CARTESIAN format, the threshold
is ignored and wind speed units are always meters per second
(m/s).

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