SDI-UWS-GILL Gill Ultrasonic Wind Sensor Installation and Quick Setup Guide
1.800.548.4264 www.ftsenvironmental.com
700-SDI-UWS-GILL Rev. 2 – 21 Apr 2015
Contact information FTS 1065 Henry Eng Place Victoria, B.C., V9B 6B2 CANADA www.ftsenvironmental.com Toll-free Local Technical support
1-800-548-4264 250-478-5561
[email protected] 1.800.548.4264 www.ftsenvironmental.com
700-SDI-UWS-GILL Rev. 2 – 21 Apr 2015
Gill Ultrasonic Wind Sensor
Table of Contents Contact information ................................................................................................................................................. 1 Chapter 1
Introduction ................................................................................................................................. 3
1.1
General Description ............................................................................................................................................. 3
1.2
Specifications .......................................................................................................................................................... 4
Chapter 2
Installation and Maintenance ................................................................................................ 5
2.1
Installation ............................................................................................................................................................... 5
2.2
Maintenance ........................................................................................................................................................... 6
Chapter 3
Sensor Quick Set Up Guide ..................................................................................................... 7
3.1
Configuring the WindSonic ............................................................................................................................... 7
3.2
In-Line Logging ................................................................................................................................................... 12
3.3
Mapping the WindSonic .................................................................................................................................. 13
3.4
Setting up Regular Logging ........................................................................................................................... 13
3.5
Confirm Sensor Operation .............................................................................................................................. 15
3.6
Changing the Setup .......................................................................................................................................... 16
Document Revision History .................................................................................................................................17
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Gill Ultrasonic Wind Sensor
Chapter 1 Introduction 1.1
General Description
FTS Forest Technology Systems Limited SDI-UWS-GILL is an ultrasonic wind speed and direction sensor designed to operate with the FTS Axiom Datalogger’s SDI-12 interface. The SDI-UWS-GILL sensor consists of a Gill Instruments WindSonic sensor, a sturdy anodized aluminum mounting arm, and an SDI interface cable. The sensor operates in polled mode as a slave on the SDI-12 bus. SDI-12 1 (Serial Data Interface at 1200 baud) is a standardized protocol that defines how microprocessor based sensors and data loggers communicate. The WindSonic wind speed and direction sensor is a four element device containing no moving parts. This results in a robust sensor that does not require field calibration.
Figure 1-1: Gill Ultrasonic Wind Sensor Components
1
Information on SDI-12 protocols can be found at http://www.sdi-12.org/
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1.1.1 Connector Pinout The SDI-UWS-GILL connector is an environmentally sealed, bayonet mount, keyed, military style connector designed to operate with an FTS Axiom Datalogger on the SDI bus. The connector is waterproof even without a mating connector attached. Electrical signal connections for the SDI-UWSGILL connector are shown in Table 1 below.
PIN
SIGNAL
A
+12 Vdc
B
SDI-12 Data
C
1.2
Ground Table 1
Specifications
The specifications for the Gill WindSonic Ultrasonic Wind Sensor are shown in Table 2. Voltage Current Interface
+12 Vdc nominal 30 mA nominal SDI-12
Storage Temperature Operating Temperature Operating Humidity
-40°C to +80°C -35°C to +70°C Less than 5% to 100%
Wind Speed Range: Accuracy: Resolution:
0 to 60 m/s +/- 2% 0.01 m/s
Wind Direction Range: 0 to 359 degrees Accuracy: +/- 3 degrees Resolution: 1 degree Table 2
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Chapter 2 2.1
Installation and Maintenance
Installation
The SDI-UWS-GILL sensor is designed to mount to a 1.5” to 3” diameter pipe and should be mounted as far as possible in a clear area unaffected by turbulence from surrounding structures (trees, buildings, mounting structure masts, etc.) which will affect its accuracy. Ideally, it should be mounted on the side facing the prevailing winds. To prevent interference with local transmitters, the recommended separations between the WindSonic and radio transmitting antennas should be observed: VHF IMM MF/HF Satcom
1m 5m 5m
Installation for the SDI-UWS-GILL is as follows (see Figure 2-1): a)
Install the SDI-UWS-GILL sensor at the desired height by securely fastening the two U-bolts. Ensure that the sensor mounting arm is pointing north and that the sensor cable is long enough to connect to the data logger.
b)
Orient the WindSonic so that north marker arrows point north and secure it in place.
c)
Secure the sensor cable to the mast.
d)
Connect the SDI-UWS-GILL sensor to an SDI port on the data logger front panel.
Top View
Figure 2-1: : Orientation of the sensor
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2.2
Maintenance
The SDI-UWS-GILL Ultrasonic Wind Sensor is designed not to require re-calibration within its lifetime; however, the following procedure should be performed on an annual basis: a)
Check cables and connectors for deterioration or damage and replace if needed.
b) Check the WindSonic sensor for any build-up of deposits and clean with a cloth moistened with a mild detergent. Care should be taken to avoid scratching any surfaces DO NOT: Remove black ‘rubber’ transducer caps; Attempt to remove ice or snow with a tool; allow unit to defrost naturally; Use solvents
Please contact FTS technical support if the unit ceases to operate properly.
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Chapter 3
Sensor Quick Setup Guide
This chapter will take you through the steps to set up (configure) the WindSonic with an Axiom datalogger. It is meant as a quick reference. Detailed instructions can be found in the Axiom User Guide and Axiom Configuration Reference.
3.1
Configuring the WindSonic
1)
Connect the Gill Ultrasonic to the data logger on one of the orange SDI cable ports.
2)
From the data logger’s home page, select the SDI-12 icon.
Figure 3-1: Home Page
3)
The next screen (SDI Sensor Mapping) will display a list of SDI-12 sensors which have been mapped to the Datalogger. If there are no SDI-12 sensors mapped, the screen will be blank
Figure 3-2: Home screen – SDI-12 icon
4)
Select the Add icon, then use the arrow to scroll down until the WindSonic icon is displayed and select it.
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Gill Ultrasonic Wind Sensor
Figure 3-3: WindSonic Icon
5)
The WindSonic Sensor Setup screen will be displayed
Figure 3-4: WindSonic Sensor Setup
6)
Edit the fields by pressing on the field box. Sensor:
The default name for the sensor is WindSonic. You can change this if desired. For example a name which includes the model number (Gill_1405). If you are not sure of the model number, press on the Test button (see Figure 3-5)
Figure 3-5: Test screen display
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Address:
If you know the sensor address, input it here. If the sensor is not part of a preconfigured FTS system, FTS will ship it with the default address of 0 (zero). If there are more sensors mapped to the Datalogger, the WindSonic’s address cannot conflict with those addresses.
Low Power Mode:
Select this check box to use less power. When selected, calculations will take a few seconds longer to run.
IMPORTANT! Older model WindSonic sensors can lock up when operating in low power mode, so leave the power mode checkbox blank. WindSonic models with Gill serial numbers 15020045 and higher can be operated in either power mode. NOTE: If you require low power mode and are unsure if your WindSonic will support this, contact FTS for verification Checking the WindSonic serial number: The Gill serial number is found on the Gill Instruments WINDSONIC label located on the bottom of the sensor. DO NOT refer to the FTS label on the shaft which has a different serial number which will be preceded by the Model#: SDI-UWS-GILL-3 identifier.
FTS label
Gill Serial Number
Figure 3-6: WindSonic label with Serial Number
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7)
Select the Wind tab:
Figure 3-7: WindSonic Sensor Setup
USER VARIABLES: This screen displays the user variables with the default variable names. The default names can be changed if desired by pressing on the field and using the keyboard to enter the desired name. Speed: will provide the raw wind speed. Direction: will provide the raw wind direction
will provide the status of the sensor using a numerical code (refer to the Gill WindSonic 2 User Manual - SDI-12 Status Codes for details) Status:
Filtered Speed: the datalogger program automatically assigns erroneous wind readings an
unrealistic wind speed value of 9999. When this field is named, these values will be filtered and replaced with “Err”. IMPORTANT! If there is no filter in place (ie: the field is blank), the 9999 value will cause
data spikes and a cluttered data plot. Additionally, the 9999 value will be used in calculations which can lead to false positives and warnings being issued for nonexistent high winds. Filtered Direction: As for filtered speed, if this field is named, erroneous wind reading’s directions
will not be displayed on the data plot. INTERVAL: The interval is how often measurements will be taken in hh:mm:ss format. Press on the time component you wish to change (it will turn blue) and use the arrows to input the desired interval. OFFSET: This is the time after midnight (UTC) when the measurement will be taken. For example: An interval of 10 seconds (00:0:10) with an offset of 8 seconds (00:00:08) will result in readings being taken at 00:00:08, 00:00:18, 00:00:28 etc.
2
http://gillinstruments.com/data/manuals/WindSonic-GPA-manual-1405-PS-0019-issue-21.pdf
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Figure 3-8: Setting interval and offset times
8)
Select the Units tab and input desired values.
Figure 3-9: Units Tab
WIND SPEED: Use the drop down menu to select the desired units. WIND DIRECTION: wind direction is in degrees true
PRECISION: indicates the number of decimal places to which the measurements will be made. The maximum number is four decimal places
9)
Select OK
.
i)
If In-line Logging is enabled (from Station