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WindObserver II
Ultrasonic Anemometer
User Manual
Doc No. 1390-PS-0004
Issue 18
APPLIES TO UNITS WITH
SERIAL NUMBERS 901001 ONWARDS
Gill Instruments Limited
Saltmarsh Park,
67 Gosport Street,
Lymington,
Hampshire.
SO41 9EG
UK
Tel: +44 (0) 1590 613500
Fax: +44 (0) 1590 613501
E-mail: anem@gill.co.uk
Website: www.gill.co.uk
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Related Manuals for Gill Instruments WindObserver II
Summary of Contents for Gill Instruments WindObserver II
- Page 1 WindObserver II Ultrasonic Anemometer User Manual Doc No. 1390-PS-0004 Issue 18 APPLIES TO UNITS WITH SERIAL NUMBERS 901001 ONWARDS Gill Instruments Limited Saltmarsh Park, 67 Gosport Street, Lymington, Hampshire. SO41 9EG Tel: +44 (0) 1590 613500 Fax: +44 (0) 1590 613501 E-mail: anem@gill.co.uk...
- Page 2 Gill Instruments Ltd _____________________________________________________________________________________________________________ WindObserver II Anemometer ________________________________________________________________________________________________ WindObserver II Page 2 Issue 18 Doc. No. 1390-PS-0004 January 2009...
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Page 3: Table Of Contents
Mechanical installation..................21 Location........................21 Orientation ......................21 Mounting bracket ....................21 Alignment ........................ 23 Figure 2b WindObserver II outline dimensions............24 USING WITH THE GILL WINDDISPLAY ..........25 Connecting to a Gill WindDisplay ................26 MESSAGE FORMATS & OPTIONS............27 8.1. - Page 4 Gill Instruments Ltd _____________________________________________________________________________________________________________ Heating (If fitted) ....................30 45° Offset ........................ 30 Vertical Output Padding ..................30 8.8. ASCII message format (UV and Polar) ............31 ASCII UV format ....................31 ASCII Polar format ....................32 8.9. Binary message format (UV, Polar and Tunnel) ..........33 Binary UV format.....................
- Page 5 Gill Instruments Ltd _____________________________________________________________________________________________________________ 10.5. Status (error) codes ..................47 10.6. Bench test....................... 47 Integrity Check Chamber (ICC) ................48 Integrity & Zero Wind Check ................... 48 APPENDICES..................49 11.1. Glossary & Abbreviations................49 11.2. Guarantee....................... 50 11.3. Principle of operation ..................51 11.4.
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Page 6: Foreword
PC. This is explained in Section 9 Configuring. FAST TRACK SET-UP If you are in a hurry to try out the WindObserver II, are familiar with Gill equipment, and coupling to a PC using RS422, go to the following sections: Section 6 Installation Section 8 Message Formats &... -
Page 7: Specification
Gill Instruments Ltd _____________________________________________________________________________________________________________ SPECIFICATION Measurement Output 1, 2, 4, 5, 8, 10Hz Parameters UV, Polar, NMEA, Tunnel Units m/s, Knots, MPH, KPH ft/min Averaging Flexible 1-3600 seconds Wind Speed Range 0 - 65m/s (0-145mph) Accuracy ±2%@12m/s Resolution 0.01m/s Offset ±0.01m/s... -
Page 8: Pre-Installation
Other Terminal Emulation software packages Cable and Junction box To connect between the WindObserver II and the host system. The unit is supplied with a 2m or 10m flying cable, requiring a mast mounted junction box (not provided) for onward connection. - Page 9 _____________________________________________________________________________________________________________ Mounting Bracket A mounting bracket is required (not provided) which will attach to the WindObserver II via the four tapped holes in the base of the unit. Always ensure that the gasket supplied is fitted to the base of the anemometer.
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Page 10: Installation
Do NOT remove the black “rubber” transducer caps. Take care not to knock the four Transducer arms. All the time the WindObserver II is not in its final location, it should be protected from damage by keeping it in the original packaging as long as possible, treating it as a delicate instrument. -
Page 11: Bench System Test
See also Section 6.1 Cabling and junction box The WindObserver II unit is fitted with a flying 9 pair cable attached (2m or 10m long). This must be terminated in a suitable terminal box to IP66 or better, fitted with glands to prevent moisture ingress. -
Page 12: Connections
Gill Instruments Ltd _____________________________________________________________________________________________________________ 6.4. Connections Important Do NOT join any of the cores of the cable together. Joining cores could damage the unit permanently. Any cores not used should be isolated. Do NOT connect the unit’s 0V, heating –ve, analogue output 0V or digital 0V to the screen or earth. -
Page 13: Default Settings
Gill Instruments Ltd _____________________________________________________________________________________________________________ Default Settings The factory default settings are: Non - heated units A0 B3 C1 E1 F1 G0000 J1 K1 L1 M2 NA O1 P1 T1 U1 V1 X1 Y1 Z1 Heated units A0 B3 C1 E1 F1 G0000 H1 J1 K1 L1 M2 NA O1 P1 T1 U1 V1 X1 Y1 Z1 Note that Heating (H command) is not enabled as a default condition. -
Page 14: Connecting To A Pc With A Rs422 Or Rs485 Input
Gill Instruments Ltd _____________________________________________________________________________________________________________ Connecting to a PC with a RS422 or RS485 input The PC requires either an internal RS422 interface card, or an external RS422/485 to RS232 converter, which will plug into the standard 9 way or 25 way RS232 serial port of the PC or host equipment. -
Page 15: Networking Units
Gill Instruments Ltd _____________________________________________________________________________________________________________ Networking units Before coupling units into a network: Each device must be configured with a unique Unit Identifier (letter A to Z) however in multi drop systems it could be advised to avoid using letters A-F, KMN and P as they could appear in the data string. -
Page 16: Connecting To A Pci Unit With Rs422 Input
Gill Instruments Ltd _____________________________________________________________________________________________________________ Connecting to a PCI Unit with RS422 input WindObserver II 9 Pair Cable PCI 15 Way D Type Connector Signal Names Colour Signal names Cable Pair Pin Nos. TXB(+) Pair 1 Green RXB(+) TXA(–) Pair 1 Black RXA(–) -
Page 17: Pci Connector Pin And Cable Assignments
Gill Instruments Ltd _____________________________________________________________________________________________________________ PCI Connector Pin and Cable assignments Anemometer connector – 15 way Designation Chassis RS422_RXB (+) RS422_TXB (+) Digital 0V, Signal ground Supply V+ Analogue output V1 Not used Analogue output V2 RS422_RXA (-) RS422_TXA (-) Supply V-... -
Page 18: Rs 232 Output - 9 Way
Gill Instruments Ltd _____________________________________________________________________________________________________________ RS 232 Output – 9 way Designation RX data TX data Signal Ground RS422 Network In – 9 way Skt Designation Not connected Not connected Not connected RS422_RXA (-) Signal ground RS422_TXA (-) RS422_TXB (+) RS422_RXB (+) Chassis RS422 Network Out –... -
Page 19: Analogue Connections
Gill Instruments Ltd _____________________________________________________________________________________________________________ 6.5. Analogue connections When using the analogue outputs it is advisable to use a low pass filter to remove any high frequency noise present. The analogue signals can be susceptible to external interference if unprotected. The anemometer cable has individual screens covering each channel’s signal wires. -
Page 20: Power Supplies
Sensor Supply: - Voltage 9 to 30v DC Current 60mA max. 50mA average • The WindObserver II has reverse polarity protection. Wind Observer II Units with Heating Heater Supply: - Voltage 22V to 30V (max) AC RMS or DC. Current allow for 3A. -
Page 21: Mechanical Installation
Location It is important to ensure that the WindObserver II is mounted in a position clear of any structure, which may obstruct the airflow or induce turbulence. Do NOT mount the WindObserver II in close proximity of high-powered radar or radio transmitters. - Page 22 Gill Instruments Ltd _____________________________________________________________________________________________________________ Figure 1. Suggested mounting bracket and Earthing (grounding) arrangements ________________________________________________________________________________________________ WindObserver II Page 22 Issue 18 Doc. No. 1390-PS-0004 January 2009...
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Page 23: Alignment
Gill Instruments Ltd _____________________________________________________________________________________________________________ Alignment The anemometer should be set to point North (or to another known reference direction), using the North Spar, which can be identified from the red dot alignment indicator on the base of the instrument. See Figure 2a. -
Page 24: Figure 2B Windobserver Ii Outline Dimensions
Gill Instruments Ltd _____________________________________________________________________________________________________________ Figure 2b WindObserver II outline dimensions 2-metre cable 100mm long tails ________________________________________________________________________________________________ WindObserver II Page 24 Issue 18 Doc. No. 1390-PS-0004 January 2009... -
Page 25: Using With The Gill Winddisplay
_____________________________________________________________________________________________________________ USING WITH THE GILL WINDDISPLAY The WindObserver II is designed to link directly to the Gill WindDisplay unit to provide a complete wind speed and direction system. When coupled to a WindDisplay, the WindObserver II can be used as supplied, however if a fault occurs, the WindDisplay may lock into the last valid reading. -
Page 26: Connecting To A Gill Winddisplay
Refer to the WindDisplay User Manual for the method of operation. Notes Use the WindObserver II as supplied in the factory default settings – i.e. do not reconfigure, apart from configuring heater if fitted. (See Section 9.5) The WindDisplay can provide power for the WindObserver II. -
Page 27: Message Formats & Options
_____________________________________________________________________________________________________________ MESSAGE FORMATS & OPTIONS On first applying power to the WindObserver II, it will be in ‘Measurement Mode’, and it will output wind measurement information in one of eight formats as described below. Setting the output format, units, other parameters, options and the communication settings are all carried out in the alternative ‘Configuration Mode’. -
Page 28: Networking
If used in a multi drop system then it is recommended that Unit Identifiers A, B, C, D, E, F, K, M, N and P are not used. Configuring WindObserver II for Half Duplex Operation. 1) Set up Two Terminals: One for RS485 Half Duplex and the other for RS422 Full Duplex. -
Page 29: Units
Gill Instruments Ltd _____________________________________________________________________________________________________________ 8.4. Units The wind speed can be set to any of the following units: Unit Abbreviation Metres per sec Knots knots Miles per hour Kilometres per hour Feet per minute 8.5. Output rate The output frequency can be set between 1 and 10 per second. The wind speed is sampled every 25ms, each axis being sampled sequentially. -
Page 30: Heating (If Fitted)
Gill Instruments Ltd _____________________________________________________________________________________________________________ Heating (If fitted) Heating is autonomous and requires no set-up once activated. 45° ° ° ° Offset If required, the U axis can be offset +45° to the transducer axis. Vertical Output Padding A dummy W vector is inserted to provide compatibility with any WindMaster that may be in a network. -
Page 31: Ascii Message Format (Uv And Polar)
Gill Instruments Ltd _____________________________________________________________________________________________________________ 8.8. ASCII message format (UV, Polar and Tunnel) ASCII UV format U axis wind speed V axis wind speed Units <STX>A,+000.04,-000.02,M,+345.01,+022.36,00,<ETX>25 Start of Unit Speed of Temperature Status End of Check string identification sound string Where U axis wind speed In increments of 0.01 units (±UUU.UU) -
Page 32: Ascii Polar Format
Gill Instruments Ltd _____________________________________________________________________________________________________________ ASCII Polar format Wind direction Wind speed Units <STX>A,121,000.08,M,+344.66,+021.76,00,<ETX>06 Start of Unit Speed of Temperature Status End of Check string identification sound string Where Wind direction In degrees relative to N (DDD) Wind speed In increments of 0.01 units (±MMM.MM) All other parameters See Section 8.8 ASCII UV format... -
Page 33: Binary Message Format (Uv, Polar And Tunnel)
Gill Instruments Ltd _____________________________________________________________________________________________________________ 8.9. Binary message format (UV, Polar and Tunnel) Binary UV format V axis wind speed U axis wind speed Units 0x81 0x81 000.04 -000.02 +345.01 +022.36 00 1 Start of string Speed of sound Temperature Status... -
Page 34: Binary Tunnel Format
Gill Instruments Ltd _____________________________________________________________________________________________________________ Binary Tunnel format Units U axis wind speed Direction 0x81 0x81 +000.04 1 00 1 Start of string Status U axis Wind speed In increments of 0.01 units (±MMM.MM) Direction (along U axis) Value Polarity Other parameters See Section 8.9 Binary UV format... -
Page 35: Nmea Format
Exclusive OR of all characters between ‘$’ and ‘*’ Check sum reported as ASCII hex. A typical WindObserver II configuration suitable for NMEA would be: B2, E1, F1, G0, K1, L1, M5, O1, P1, U1. Consult specification NMEA 0183 version 3 (available on the web) www.nmea.org... -
Page 36: Analogue Outputs And Options
Gill Instruments Ltd _____________________________________________________________________________________________________________ 8.11. Analogue outputs and options Analogue outputs are available as an option on the WindObserver II. See Section 6.5 for connection details, and Section 9.5 for configuring the analogue outputs. Output modes There are three analogue output channels which can be configured as either voltage (0 to 5v, or ±2.5v), or current outputs (4 to 20mA). -
Page 37: Polar Mode Direction Wraparound
Gill Instruments Ltd _____________________________________________________________________________________________________________ Polar mode direction wraparound The Wind Direction in Polar mode can be configured for either Standard (0 - 359°) or Wraparound (0 - 539° ° ° ° ) options. If the Standard mode is used with a chart recorder, large swings of the recorder pen will be experienced each time the wind direction passes between 0 and 359°. -
Page 38: Configuring
Gill Instruments Ltd _____________________________________________________________________________________________________________ CONFIGURING WindCom may be used to configure WindObserver II. This is an easy to use menu-driven package, available as a free download at www.gill.co.uk. Alternatively, you may use terminal emulator software such as HyperTerminal or Terminal. -
Page 39: Checking The Configuration
Enter the Configuration code of the new setting required, followed by ENTER If successful, the new setting will be echoed back as a message by the WindObserver II. For example, to change the message format to NMEA, Type M5 and press ENTER The WindObserver II will reply with . -
Page 40: Bx - Baud Rate
Setting Configuration code Wraparound (0 - 539° ° ° ° ) Standard Dx- Diagnostic and Configuration Command (see also Section 10.6) Each of these commands causes a response from the WindObserver II. Command Item Typical response code Type and serial No. -
Page 41: Ex - Full Duplex/Half Duplex Mode
Gill Instruments Ltd _____________________________________________________________________________________________________________ Ex - Full Duplex/Half Duplex Mode Setting Configuration code Full duplex Half duplex Note: - Refer also to Para 8.3 Networking Configuration details. Fx- Data and Parity Options Setting Configuration code 8 bits, no parity, 1 stop bit... -
Page 42: Kx - Nmea Settings
Gill Instruments Ltd _____________________________________________________________________________________________________________ Kx – NMEA Settings Setting Configuration code NMEA string “IIMWV” NMEA string “WIMWV” Lx - ASCII Message Terminator Setting Configuration code CR LF Mx to Mxx - Message Format Output format Configuration code ASCII UV Continuous... -
Page 43: Ox - Ascii Output Format (Output String Padding)
Gill Instruments Ltd _____________________________________________________________________________________________________________ Ox – ASCII Output Format (Output String Padding) Setting Configuration code Comma Separated Variable (CSV) Fixed Field Example data strings:- POLAR NMEA CSV data changing to error status code CSV data changing to error status code condition. -
Page 44: 45° Alignment Offset/Inverted Operation
Gill Instruments Ltd _____________________________________________________________________________________________________________ Xx - 45° ° ° ° Alignment Offset/Inverted Operation Setting Configuration Notes code Align U axis with X1. Aligns U axis with North/South axis. transducer axis X2. This re-aligns both U&V and polarity 45˚ to Align U axis +45°... -
Page 45: Yx - Analogue Output, Channel 3 (If Fitted)
Gill Instruments Ltd _____________________________________________________________________________________________________________ Yx – Analogue Output, Channel 3 (if fitted). Setting Configuration code Status Temperature Zx – Analogue Output Scaling (if analogue outputs fitted). Setting ±20 ±30 ±40 ±50 ±60 ±70 ± ± ± ± 10 Configuration code... -
Page 46: Maintenance & Fault-Finding
10.3. Fault-finding Symptom Solution Check DC power to WindObserver II, cable and connections. Check comms settings of WindObserver II (as detailed in Section 9) and host system match, including correct Com port. No output Check unit is in Continuous mode. -
Page 47: Returning Unit
NMEA data Void Invalid data output 10.6. Bench test Couple the WindObserver II to the host system and power supply, using a known working test cable. Check that the unit is correctly configured by going into Configuration mode and using See Section 9.3 Checking the Configuration. -
Page 48: Integrity Check Chamber (Icc)
Zero Wind Check Configure your PC to run HyperTerminal and assemble the ICC by inserting the reflector cases and the two halves of the ICC onto the WindObserver II. The ICC must be retained using the strips provided. Then: 1. Ensure that the WindObserverII is set in factory default mode. For Factory default settings see section 9.3. -
Page 49: Appendices
Gill Instruments Ltd _____________________________________________________________________________________________________________ 11. APPENDICES 11.1. Glossary & Abbreviations Item Meaning Calibration Carriage Return CRLF Carriage Return Line Feed Comma Separated Variable Engineering ESCape key on keyboard used to stop any process that is being executed End of string character... -
Page 50: Guarantee
Transmitted Data Positive Negative WindCom Gill software used to configure WindObserver II With Respect To 11.2. Guarantee For terms of guarantee contact your supplier. Warranty is void if the green security seal covering base nuts is damaged or broken, or the transducer caps have been damaged. -
Page 51: Principle Of Operation
_____________________________________________________________________________________________________________ 11.3. Principle of operation The WindObserver II measures the times taken for an ultrasonic pulse of sound to travel from the North transducer to the South transducer, and compares it with the time for a pulse to travel from S to N transducer. Likewise times are compared between West and East, and E and W transducer. -
Page 52: Electrical Conformity
11.4. Electrical Conformity EC DECLARATION OF CONFORMITY ACCORDING TO COUNCIL DIRECTIVE 89/336/EEC We, Gill Instruments Ltd., declare our sole responsibility that the products: WindObserver II Ultrasonic Anemometer (Heated Variant) WindObserver II Ultrasonic Anemometer (Heated with Analogue Outputs Variant) WindObserver II Ultrasonic Anemometer (Non-Heated Variant)
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