Gill Instruments WindObserver II User Manual

Download

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

Web site: www.gill.co.uk

Page 2

Gill Instruments Ltd

_____________________________________________________________________________________________________________

________________________________________________________________________________________________

WindObserver II Page 2 Issue 18

Doc. No. 1390-PS-0004 January 2009

WindObserver II Anemometer

Page 3

Gill Instruments Ltd

_____________________________________________________________________________________________________________

________________________________________________________________________________________________

WindObserver II Page 3 Issue 18

Doc. No. 1390-PS-0004 January 2009

Contents

1. FOREWORD............................................................................................6

2. INTRODUCTION......................................................................................6

3. FAST TRACK SET-UP ............................................................................6

4. SPECIFICATION .....................................................................................7

5. PRE-INSTALLATION ..............................................................................8

5.1. Equipment supplied .......................................................................................... 8

5.2. Installation requirements................................................................................... 8

6. INSTALLATION.....................................................................................10

6.1. Installation Guidelines..................................................................................... 10

6.2. Bench system test .......................................................................................... 11

6.3. Cabling ........................................................................................................... 11

6.4. Connections.................................................................................................... 12

Default Settings....................................................................................................... 13

Connecting to a PC with a RS422 or RS485 input ................................................. 14

Networking units ..................................................................................................... 15

Connecting to a PCI Unit with RS422 input ............................................................ 16

Indoor Power and Communications Interface (Part 1189-PK-021) ........................ 16

PCI Electrical Power Requirements........................................................................ 16

PCI Connector Pin and Cable assignments ........................................................... 17

Anemometer connector – 15 way ........................................................................... 17

Auxiliary Analogue Outputs – 9 way ....................................................................... 17

DC Supply – 4 way ................................................................................................. 17

RS 232 Output – 9 way........................................................................................... 18

RS422 Network In – 9 way Skt ............................................................................... 18

RS422 Network Out – 9 way Plg ............................................................................ 18

6.5. Analogue connections..................................................................................... 19

Analogue Voltage Output Connections (5v or ± 2.5v) ............................................ 19

Analogue Connections for 4-20mA output.............................................................. 19

6.6. Power supplies ............................................................................................... 20

6.7. Mechanical installation.................................................................................... 21

Location................................................................................................................... 21

Orientation .............................................................................................................. 21

Mounting bracket .................................................................................................... 21

Alignment ................................................................................................................ 23

Figure 2b WindObserver II outline dimensions....................................................... 24

7. USING WITH THE GILL WINDDISPLAY ..............................................25

Connecting to a Gill WindDisplay ........................................................................... 26

8. MESSAGE FORMATS & OPTIONS......................................................27

8.1. Wind Speed format......................................................................................... 27

8.2. Output formats................................................................................................ 27

Low wind speeds .................................................................................................... 27

8.3. Networking...................................................................................................... 28

8.4. Units ............................................................................................................... 29

8.5. Output rate...................................................................................................... 29

Sample Average ..................................................................................................... 29

8.6. Averaging (Digital Data).................................................................................. 29

8.7. Options ........................................................................................................... 29

Speed of Sound (SOS) and Temperature .............................................................. 29

Page 4

Gill Instruments Ltd

_____________________________________________________________________________________________________________

________________________________________________________________________________________________

WindObserver II Page 4 Issue 18

Doc. No. 1390-PS-0004 January 2009

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..................................................................................................... 33

Binary Polar format ................................................................................................. 33

Binary Tunnel format............................................................................................... 34

8.10. NMEA Format................................................................................................. 35

8.11. Analogue outputs and options......................................................................... 36

Output modes ......................................................................................................... 36

Channel outputs ...................................................................................................... 36

Status ...................................................................................................................... 36

Temperature ........................................................................................................... 36

Tunnel mode ........................................................................................................... 36

Scaling .................................................................................................................... 36

Averaging ................................................................................................................ 36

Polar mode direction wraparound ........................................................................... 37

Low wind speeds .................................................................................................... 37

9. CONFIGURING......................................................................................38

9.1. Entering Configuration mode .......................................................................... 38

9.2. Returning to Measurement mode.................................................................... 38

9.3. Checking the configuration ............................................................................. 39

9.4. Changing settings ........................................................................................... 39

9.5. Configuration Settings..................................................................................... 39

Ax - Speed of Sound (SOS) and Temperature ....................................................... 39

BX - Baud Rate ....................................................................................................... 40

Cx- Analogue Output Polar Mode Direction Wraparound....................................... 40

Dx- Diagnostic and Configuration Command (see also Section 10.6) ................... 40

Ex - Full Duplex/Half Duplex Mode........................................................................ 41

Fx- Data and Parity Options ................................................................................... 41

Gx to Gxxxx - Averaging (Digital Outputs only) ...................................................... 41

Hx - Heating (If fitted) ............................................................................................. 41

Jx - Analogue Power-up Tests................................................................................ 41

Kx – NMEA Settings ............................................................................................... 42

Lx - ASCII Message Terminator ............................................................................. 42

Mx to Mxx - Message Format ................................................................................. 42

Nx - Node Address.................................................................................................. 42

Ox – ASCII Output Format (Output String Padding)............................................... 43

Px - Output Rate ..................................................................................................... 43

Q- Measurement Mode ........................................................................................... 43

Tx - Analogue Output Voltage or Current settings (if fitted).................................... 43

Ux – Digital Output Units......................................................................................... 43

Vx- Vertical Output Padding.................................................................................... 43

Xx - 45° Alignment Offset/Inverted Operation ........................................................ 44

Yx – Analogue Output, Channel 3 (if fitted). ........................................................... 45

Zx – Analogue Output Scaling (if analogue outputs fitted). .................................... 45

10. MAINTENANCE & FAULT-FINDING ....................................................46

10.1. Cleaning and Handling.................................................................................... 46

10.2. Servicing......................................................................................................... 46

10.3. Fault-finding.................................................................................................... 46

10.4. Returning unit ................................................................................................. 47

Page 5

Gill Instruments Ltd

_____________________________________________________________________________________________________________

________________________________________________________________________________________________

WindObserver II Page 5 Issue 18

Doc. No. 1390-PS-0004 January 2009

10.5. Status (error) codes ........................................................................................ 47

10.6. Bench test....................................................................................................... 47

Integrity Check Chamber (ICC) .............................................................................. 48

Integrity & Zero Wind Check................................................................................... 48

11. APPENDICES........................................................................................49

11.1. Glossary & Abbreviations................................................................................ 49

11.2. Guarantee....................................................................................................... 50

11.3. Principle of operation...................................................................................... 51

11.4. Electrical Conformity....................................................................................... 52

Page 6

Gill Instruments Ltd

_____________________________________________________________________________________________________________

________________________________________________________________________________________________

WindObserver II Page 6 Issue 18

Doc. No. 1390-PS-0004 January 2009

1. FOREWORD

Thank you for purchasing the WindObserver II manufactured by Gill Instruments Ltd. The unit has no customer serviceable parts and requires no calibration or maintenance. To achieve optimum performance we recommend that you read the whole of this manual before proceeding with use. Do NOT remove black “rubber” transducer caps.

Gill products are in continuous development and therefore specifications may be subject to change and design improvements without prior notice.

The information contained in this manual remains the property of Gill Instruments and should not be copied or reproduced for commercial gain.

2. INTRODUCTION

The Gill WindObserver II wind sensor is a very robust, lightweight unit with no moving parts, outputting wind speed and direction. The units of wind speed, output rate and formats are all user selectable.

The WindObserver II is available with or without de-icing heating (recommended if icing is likely), and with or without analogue outputs.

The WindObserver II can be used in conjunction with a PC, data logger or other device, provided it is compatible with the RS422 output or the analogue outputs. Multiple units can be networked if required.

Alternatively, the WindObserver II is designed to connect directly to the Gill WindDisplay unit to provide a complete wind speed direction system without any configuration required by the user.

The output message format can be configured in Polar, UV (2-axis), NMEA (0183 Version 3), Tunnel formats, and as either a Continuous output or Polled (requested by host system), detailed in full in Section 8 Message Formats & Options.

WindObserver II may be configured using WindCom software which is available, free of charge, from the Gill website www.gill.co.uk, or by using standard communications software on a PC. This is explained in Section 9 Configuring.

3. 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 & Options

Section 9 Configuring

After you have successfully set up the WindObserver II, we strongly advise that you then go back and read the rest of the manual to ensure that you get the best results from the WindObserver II.

Page 7

Gill Instruments Ltd

_____________________________________________________________________________________________________________

________________________________________________________________________________________________

WindObserver II Page 7 Issue 18

Doc. No. 1390-PS-0004 January 2009

4. 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

Direction

Range 0 - 359° Accuracy ± 2° Resolution 1°

Sonic Temperature Output

Range -40°C to + 70°C

Anemometer Status Supplied as part of standard message

Starting Threshold 0.01 m/s

Dead Band Wind Direction None

Power Requirement

Anemometer only 9-30 V DC (40mA @ 12VDC), reverse voltage protected Heating - Optional Allow 3A @ 22v to 30v (max) AC rms or DC

Digital Output

Communication RS422, full duplex, network facility Baud rates 1200, 2400, 4800, 9600, 19200, 38400 Formats 8 data, odd, even or no parity

Analogue Output - Optional

Quantity 3 (speed, direction, status, SOS or Sonic Temperature) Scale Multiples of ± 10m/s up to ± 70m/s Type ± 2.5V, 0-5V or 4-20mA V output resistance 60 Ohms 4-20mA loading 10-300 Ohms

Dimensions

Size 405mm x 210mm Weight 1.5kg

Materials

External Construction Stainless Steel 316

Environmental

Moisture protection IP66 (NEMA4X) Operating temperature -55°C to +70°C (heated version) Humidity 5% to 100% RH Precipitation 300mm/hr EMC BS EN 50081-1: 1992 (Emissions class B) BS EN 50082-2: 1992 (Immunity) FCC class A Icing MILSTD810E Method 521.1 Procedure 1

Standards Traceable to UK national standards

Site Calibration None required. (See Section 10.6 Zero Wind Check)

Page 8

Gill Instruments Ltd

_____________________________________________________________________________________________________________

________________________________________________________________________________________________

WindObserver II Page 8 Issue 18

Doc. No. 1390-PS-0004 January 2009

5. PRE-INSTALLATION

5.1. Equipment supplied

WindObserver II Option 1 RS422 output or WindObserver II Option 2 RS422 output and analogue outputs or WindObserver II Option 3 RS422 output and de-icing or WindObserver II Option 4 RS422 output, analogue outputs and de-icing and Installation kit (comprising a gasket and four Stainless Steel screws) and WindObserver II Quick Start Guide and WindObserver II User Manual (this manual) and Integrity Check Chamber (ICC) (Optional)

5.2. Installation requirements

Host system - One of the following:

 PC with an internal or external interface compatible with the RS422 output from

the WindObserver II.

 Gill WindDisplay.  Other equipment with I/O compatibility to the WindObserver II option selected.

For example if the unit has Analogue outputs, a Data Logger, Chart Recorder, or PC

fitted with an ADC card.

 Networking - Multiple WindObserver II units can be networked

Software - One of the following:

 WindCom – A user-friendly package providing easy configuring of the

WindObserver II, for use on PCs running under Windows™ 98, 2000 or XP. Available to customers as a free download from www.gill.co.uk.

 HyperTerminal (for Windows™ 9x and later), or Terminal (Windows™ 3.n),

normally already installed on a PC.

 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.

See Section 6.4 for connection details

The flying cable must be retained with a cable tie within 150mm of the base of the anemometer.

Page 9

Gill Instruments Ltd

_____________________________________________________________________________________________________________

________________________________________________________________________________________________

WindObserver II Page 9 Issue 18

Doc. No. 1390-PS-0004 January 2009

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.

It is important that the gasket supplied forms a watertight seal on the base of the anemometer.

In the event that the mounting bracket supplied by the customer is not flat or does not form complete support for the anemometer base; the customer must fit a mounting ring as shown in Figure 2.

See Section 6.7 for mounting details.

Page 10

Gill Instruments Ltd

_____________________________________________________________________________________________________________

________________________________________________________________________________________________

WindObserver II Page 10 Issue 18

Doc. No. 1390-PS-0004 January 2009

6. 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.

If an Intrinsically Safe (IS) device is required, the I.S. WindObserver must be

used - the WindObserver II is NOT an IS device.

Warranty is void if the unit case is removed.

6.1. Installation Guidelines

The WindObserver II has been designed to meet and exceed the stringent standards listed in its specification. Operating in diverse environments all over the world, WindObserver II requires no calibration or adjustment whatsoever.

As with any sophisticated electronics, good engineering practice should be followed to ensure correct operation.

 Always check the installation to ensure the WindObserver II is not affected by

other equipment operating locally, which may not conform to current standards,

e.g. radio/radar transmitters, boat engines, generators etc. Guidelines –

 Avoid mounting in the plane of any radar scanner – a vertical separation of

at least 2m should be achieved.

 Radio transmitting antennas, the following minimum separations (all round)

are suggested

• VHF IMM – 1m

• MF/HF – 5m

• Satcom – 5m (avoid likely lines of sight)

 Ensure the product is correctly earthed in accordance with this manual  Use cables recommended by Gill, keeping the length below the maximum allowed

(See Section 6.3) Where the cables are cut and re-connected (junction boxes, plugs and sockets) the cable screen integrity must be maintained, to prevent the EMC performance being compromised.

 Earth loops should not be created – earth the system in accordance with the

installation guidelines. (See Section 6.4)

 Ensure the power supply operates to the WindObserver II specification at all times.

Avoid turbulence caused by surrounding structures that will affect the accuracy of the WindObserver II such as trees, masts and buildings. The World Meteorological Organisation makes the following recommendation:

 The standard exposure of wind instruments over level open terrain is 10m above

the ground. Open terrain is defined as an area where the distance between the sensor and any obstruction is at least 10 times the height of the obstruction.

When installing the unit degrease the unit and hold with lint free gloves to reduce the build up of deposits.

Page 11

Gill Instruments Ltd

_____________________________________________________________________________________________________________

________________________________________________________________________________________________

WindObserver II Page 11 Issue 18

Doc. No. 1390-PS-0004 January 2009

6.2. Bench system test

Note: Prior to physically mounting the WindObserver II in its final location, we strongly recommend that a bench system test be carried out to confirm the system is configured correctly, is fully functional and electrically compatible with the selected host system and cabling (preferably utilising the final cable length). The required data format, units, output rate, and other options should also all be configured at this stage. If an Integrity Check Chamber (ICC) has been purchased refer to Section 10.6.

6.3. Cabling

Cable type

A RS422 compatible cable should be used, with the number of twisted pairs matching the application. If both the (optional) Heating and Analogue outputs are utilised, then a 9 pair cable is required.

Generic description – Twisted pairs with drain wire, screened with aluminised tape,

with an overall PVC sheath. Wire size 7/0.2mm (24 AWG) The table shows some suitable manufacturers’ references; other manufacture’s equivalents

can be used.

Table 1

No. of pairs Gill ref.

Belden ref.

Batt electronics ref.

2 - 9729 3 026-02660 9730 91030 4 026-03156 9728 91199 9 026-02663 8774 91009

Cable length

The typical maximum length at 9600 baud is 1km (3200ft), using the recommended cable. If any problems of data corruption are experienced (due to, for example, a high local electrical ‘noise’ level), then a lower baud rate should be used. Alternatively, a thicker or higher specification cable can be tried. 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.

The cable type from the terminal box to the host system must be as specified above. If any cable is likely to be exposed to mechanical damage, it must be enclosed in a suitable conduit or cable tray. The cable must be securely fixed with cable clamps or equivalent, such that the cable is not under stress at the cable glands.

The gland area at the base of the WindObserver II should not be directly exposed to moisture, as whilst the gland is sealed when mated, the anemometer is vented to air at the base to avoid pressure build up. If an IP66 rating is essential or the unit is mounted other than ‘right way up’ use the gasket provided in the mounting kit.

Page 12

Gill Instruments Ltd

_____________________________________________________________________________________________________________

________________________________________________________________________________________________

WindObserver II Page 12 Issue 18

Doc. No. 1390-PS-0004 January 2009

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.

The screens of each pair are joined together inside the anemometer - these should be joined to the cable screen(s) of any further cable run. Avoid long grounding loops. Digital OV should be used in conjunction with RS422 TX RX lines in order to improve noise immunity. Each pair in the cable is labelled with its pair number.

Table 2

Conductor colour Designation

Pair 1 green RS422_TXB (+) black RS422_TXA (-) Pair 2 white RS422_RXB (+) black RS422_RXA (-) Pair 3 red Supply V+ black Supply VPair 4 blue Digital 0v black Analogue 0v Pair 5 yellow Heater + *1 black

Heater – *1

Pair 6 brown Analogue Ch 3 output *2 black Analogue 0v *2 Pair 7 orange Not used (isolate) *2 black Not used (isolate) *2 Pair 8 white Analogue Ch 1 output *2 red Analogue Ch 2 output *2 Pair 9 green Not used (isolate) *2 red Not used (isolate) *2 Screens Chassis ground

1 and 2

Note may not be functional - check model number and options fitted.

NOTE Analogue connections change on units from serial number XXXXXX.

Earthing or grounding

To ensure correct operation, and for maximum protection against lightning, the anemometer MUST be correctly earthed (grounded) via its mountings. Inadequate Earthing will degrade anemometer performance, particularly in the presence of radio frequency interference. See Fig 1 Suggested mounting bracket and Earthing (grounding) arrangements

The unit MUST be connected to an appropriate grounding point with a minimum of 6mm² copper wire, via the M5 base screws. The cable screens must be joined with any cable screen continuing from the unit’s cable via a junction box. The primary earth for the anemometer must be provided via the base screws and not via the cable screens.

Page 13

Gill Instruments Ltd

_____________________________________________________________________________________________________________

________________________________________________________________________________________________

WindObserver II Page 13 Issue 18

Doc. No. 1390-PS-0004 January 2009

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. If heating is required enabled then the H command must be set for H2.

See Section 9 Configuring for further details

Page 14

Gill Instruments Ltd

_____________________________________________________________________________________________________________

________________________________________________________________________________________________

WindObserver II Page 14 Issue 18

Doc. No. 1390-PS-0004 January 2009

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.

RXB (+) RXA (-)

WindObserver II

9 pair cable

Signal names

Pair

Colour

TXB (+) TXA (-)

RXB (+) RXA (-)

Digital OV

CONNECTED INTERNALLY

PC with RS422 or RS485 input

Signal names

Signal Ground

Ground (Earth)

TXB (+) TXA (-)

Supply V+

Supply V-

red

black

Heater + *

Heater - *

yellow

black

DC Power

supply 9-30V

see section 6.6

Heated power

supply

see section 6.6

* If unit is fitted with a heater

Cable - 3 or 4

twisted pairs

Screen and drain wires

green black

white black

blue

Page 15

Gill Instruments Ltd

_____________________________________________________________________________________________________________

________________________________________________________________________________________________

WindObserver II Page 15 Issue 18

Doc. No. 1390-PS-0004 January 2009

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.

 Unit must be set for half duplex mode (E2 setting) see Para 8.3).

 It must be configured to a tri-state polled mode M3 or M4.

See also Section 9 - Configuring

T / RXB (+)

WindObserver II

9 pair cable

Signal names

Pair

Colour

TXB (+) RXB (+)

TXA (-) RXA (-)

Digital OV

1 2

CONNECTED INTERNALLY

PC with RS485

card

Signal names

Signal Ground

Ground (Earth)

Supply V+

Supply V-

red

black

Heater +

Heater -

yellow

black

DC Power

supply 9-30V

see section 6.6

Heated power

supply

see section 6.6

Cable - 2 or 3

twisted pairs

Screen and drain wires

green white

black black

blue

T / RXA (-)

. .

To Next Unit

Note: Each unit in the network will require its own power supplies.

Please refer to section 8.3.

Page 16

Gill Instruments Ltd

_____________________________________________________________________________________________________________

________________________________________________________________________________________________

WindObserver II Page 16 Issue 18

Doc. No. 1390-PS-0004 January 2009

Connecting to a PCI Unit with RS422 input

WindObserver II 9 Pair Cable

PCI 15 Way D Type

Connector

Signal names Cable Pair

Colour

Pin Nos.

Signal Names

TXB(+) Pair 1 Green

2 RXB(+)

TXA(–) Pair 1 Black

9 RXA(–)

RXB(+) Pair 2

White

3 TXB(+)

RXA(-) Pair 2 Black

10 TXA(-)

Digital 0v Pair 4

Blue

Signal Ground

POWER V+ Pair 3

Red

5 POWER V+

POWER 0V Pair 3 Black

11 POWER 0V

Indoor Power and Communications Interface (Part 1189-PK-021)

Environmental The desktop PCI is intended for use in a protected environment and provides interfacing to

a single anemometer. The PCI is not intended for outdoor use.

PCI Electrical Power Requirements

1) 100Vac – 120Vac, 10VA for the 115V switch position

2) 200 Vac – 250Vac, 10VA for the 230V switch position

3) 9-30Vdc, 120mA max (anemometer) 8-15Vdc, 50mA max (interface)

3 Fuses protect the unit:

1. Externally accessible 315mA(T) for 115/230v operation

2. Internally accessible 500mA (T) AUX 500mA (T) ANEM

Page 17

Gill Instruments Ltd

_____________________________________________________________________________________________________________

________________________________________________________________________________________________

WindObserver II Page 17 Issue 18

Doc. No. 1390-PS-0004 January 2009

PCI Connector Pin and Cable assignments

Anemometer connector – 15 way

Pin Designation

1 Chassis 2 RS422_RXB (+)

3 RS422_TXB (+) 4 Digital 0V, Signal ground 5 Supply V+ 6 Analogue output V1 7 Not used 8 Analogue output V2 9 RS422_RXA (-) 10 RS422_TXA (-) 11 Supply V12 Analogue output V4 13 Analogue 0V 14 Not used 15 Analogue output V3

Auxiliary Analogue Outputs – 9 way

Pin Designation

1 Earth 2 Analogue Ground 1

3 Analogue Ground 2 4 Analogue Ground 3 5 Analogue Ground 4 6 Analogue Output 1 (direct connection to Anemometer Connector Pin 6) 7 Analogue Output 2 (direct connection to Anemometer Connector Pin 8) 8 Analogue Output 3 (direct connection to Anemometer Connector Pin 15) 9 Analogue Output 4 (direct connection to Anemometer Connector Pin 12)

DC Supply – 4 way

Pin Designation

1 Interface V+ 2 Interface V3 Anemometer V4 Anemometer V+

Page 18

Gill Instruments Ltd

_____________________________________________________________________________________________________________

________________________________________________________________________________________________

WindObserver II Page 18 Issue 18

Doc. No. 1390-PS-0004 January 2009

RS 232 Output – 9 way

Pin Designation

1 DCD 2 RX data

3 TX data 4 DTR 5 Signal Ground 6 DSR 7 RTS 8 CTS 9 RI

RS422 Network In – 9 way Skt

Pin Designation

1 Not connected 2 Not connected

3 Not connected 4 RS422_RXA (-) 5 Signal ground 6 RS422_TXA (-) 7 RS422_TXB (+) 8 RS422_RXB (+) 9 Chassis

RS422 Network Out – 9 way Plg

Pin Designation

1 Not connected 2 Not connected

3 Not connected 4 RS422_RXA (-) 5 Signal ground 6 RS422_TXA (-) 7 RS422_TXB (+) 8 RS422_RXB (+) 9 Chassis

Page 19

Gill Instruments Ltd

_____________________________________________________________________________________________________________

________________________________________________________________________________________________

WindObserver II Page 19 Issue 18

Doc. No. 1390-PS-0004 January 2009

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. The continuing cable connected to the anemometer must be of equal or greater cross sectional area as the anemometer cable and must be individually screened or screened pairs.

Note that connections can also be made to a PC or other device as described in the preceding section.

REFER TO SECTION 9.5 the T command selects Voltage or Current Output on Channels 1-3.

Analogue Voltage Output Connections (5v or ±±±± 2.5v)

Analogue Connections for 4-20mA output

Important – When using the current outputs, the output loads on each channel MUST be less than 300 ohms, including cable resistance.

300Ω max

Channel 1 – Pair 8 White Channel 2 – Pair 8 Red Channel 3 – Pair 6 Brown

0v return,

Pair 6 Black or Pair 4 Black

Anemometer

Channel 1 – Pair 8 White Channel 2 – Pair 8 Red Channel 3 – Pair 6 Brown

0v return,

Pair 6 Black or Pair 4 Black

Anemometer

Page 20

Gill Instruments Ltd

_____________________________________________________________________________________________________________

________________________________________________________________________________________________

WindObserver II Page 20 Issue 18

Doc. No. 1390-PS-0004 January 2009

6.6. Power supplies

All WindObserver II units

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.

• The AC Supply must be isolated from Mains Supply.

• The heating module requires a separate power supply.

• Heater Cable length should be minimised to avoid cable volt drops and ensure

maximum voltage received at the Anemometer.

• The heating (H command) is not enabled as a default condition. If heating is required enabled then the H command must be set for H2.

• Each transducer is heated independently and will be active when ambient temperature drops below approximately +15ºC each transducer will de-activate when +25ºC threshold is reached.

The WindObserver II has reverse polarity protection.

Page 21

Gill Instruments Ltd

_____________________________________________________________________________________________________________

________________________________________________________________________________________________

WindObserver II Page 21 Issue 18

Doc. No. 1390-PS-0004 January 2009

6.7. Mechanical installation

Do NOT remove the black “rubber” transducer caps. Take care not to knock the four Transducer arms.

Before installing, a bench system test is recommended.

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.

When installing the unit handle with lint free gloves and degrease the unit to reduce the build up of deposits.

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. A site survey may be required if there is any doubt about the strength of external electrical noise. (See Section 6.1)

Orientation

Normally the WindObserver II is mounted vertically with the cable exit at the bottom. Alternatively, the unit may be mounted in any orientation, but note that if the unit is

mounted with the cable uppermost, the gasket provided in the mounting kit must be used.

Mounting bracket

A suggested mounting bracket is shown in Fig 1 below. It is recommended that the WindObserver II mounting bracket be manufactured from

stainless steel 316, to prevent possible galvanic corrosion. It is also recommended that the supplied gasket be always fitted to ensure IP66 rating and

to prevent galvanic corrosion if the mounting bracket is not manufactured from stainless steel 316.

Stainless steel 316 fixings must be used.

Page 22

Gill Instruments Ltd

_____________________________________________________________________________________________________________

________________________________________________________________________________________________

WindObserver II Page 22 Issue 18

Doc. No. 1390-PS-0004 January 2009

Figure 1. Suggested mounting bracket and Earthing (grounding) arrangements

Page 23

Gill Instruments Ltd

_____________________________________________________________________________________________________________

________________________________________________________________________________________________

WindObserver II Page 23 Issue 18

Doc. No. 1390-PS-0004 January 2009

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.

If the unit is used in a tunnel, (and the Tunnel format is used), the unit would normally be aligned with the N – S axis in the horizontal plane.

Figure 2a North marker and UV polarity definition (UV format) and Mounting Ring

SEE FIG. 4, ON PAGE 44 FOR U,V DEFINITION

Red Dot

Page 24

Gill Instruments Ltd

_____________________________________________________________________________________________________________

________________________________________________________________________________________________

WindObserver II Page 24 Issue 18

Doc. No. 1390-PS-0004 January 2009

Figure 2b WindObserver II outline dimensions

2-metre cable

100mm long tails

Page 25

Gill Instruments Ltd

_____________________________________________________________________________________________________________

________________________________________________________________________________________________

WindObserver II Page 25 Issue 18

Doc. No. 1390-PS-0004 January 2009

7. 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. Reconfiguring the Wind Observer to Fixed Field Output (O2) will ensure that any fault is flagged on the WindDisplay.

After coupling to a WindDisplay, the Wind Speed units and the Averaging period can be selected using the WindDisplay controls. See the WindDisplay User Manual.

Note that although the WindDisplay can display wind speed in various units, these are calculated within the WindDisplay. The data coming to the WindDisplay must be in metres/sec (the factory default output setting).

Figure 3 WindDisplay

The WindDisplay has been designed to provide anemometer power (approximately 15V @40mA).

If the WindObserver II has a de-icing heater fitted, this will need a separate power supply. (See Section 6.6 ).

NOTE:- If the WindDisplay is configured for NMEA mode then the WindObserver II must also be configured for NMEA mode and 4800-baud operation (configuration settings M5 and B2).

Page 26

Gill Instruments Ltd

_____________________________________________________________________________________________________________

________________________________________________________________________________________________

WindObserver II Page 26 Issue 18

Doc. No. 1390-PS-0004 January 2009

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.

WindObserver II

9 pair cable

WindDisplay

Signal names

Pair

no.

Colour

Cable – 2 or 3

twisted pairs

Signal names

Terminal

nos.

TXB (+) TXA (–)

green black

TXD + TXD –

RS422+

RS422-

CONNECTED INTERNALLY

Screen and

drain wires

Ground (Earth)

Supply V+

Supply V-

red black

+ O

2 1

Heater + *

Heater - *

yellow black

Heater power

supply

See Section 6.6

* If fitted

Page 27

Gill Instruments Ltd

_____________________________________________________________________________________________________________

________________________________________________________________________________________________

WindObserver II Page 27 Issue 18

Doc. No. 1390-PS-0004 January 2009

8. 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’.

See Section 9 CONFIGURING for details of how this is done.

The factory default settings are shown here in bold, and for convenience some ‘Configuration codes’ (as used to set the configuration) are shown in blue boxes. For example M3.

8.1. Wind Speed format

The wind speed measurements can be output in one of the following formats: UV, Polar, Customer formats (NMEA and Tunnel).

8.2. Output formats

The UV and Polar wind speed parameters are output in either ASCII or binary. These parameters can be transmitted continuously or polled from the user. Polar is also available in continuous NMEA format.

Output Formats Table

Output format Output Tri-state o/p Configuration code

Continuous No

ASCII UV

Polled Yes

Continuous No

ASCII Polar

Polled Yes

ASCII Tunnel Continuous No

M12

ASCII Tunnel Polled Yes

M13

NMEA Continuous No

Binary Tunnel Continuous No

Binary UV short Continuous No

Binary Polar Continuous No

Low wind speeds

Whilst the wind speed is below 0.05 metres/sec, the wind direction will not be calculated, in CSV mode no wind direction figure is shown, in Fixed Field mode the last known good direction figure is shown. All other output parameters will continue to update at the output rate.

Page 28

Gill Instruments Ltd

_____________________________________________________________________________________________________________

________________________________________________________________________________________________

WindObserver II Page 28 Issue 18

Doc. No. 1390-PS-0004 January 2009

8.3. Networking

Gill Proprietary Network Each anemometer connected to the network MUST be given a unique Unit Identifier

(Letters A to Z), and set to a polled tri-state mode (UV or Polar) (M3, M4 or M13). In these modes the communications transmit line is tri-state unless the anemometer is responding to a command. 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.

SWITCH WObsII

RS485 I/F

(USB)

RS422 I/F

(USB)

HYPER-TERMINAL

A (Half-D)

HYPER-TERMINAL

B (Full-D)

b (4-wire)

a (2-wire)

One PC (with two USB ports) can be used for both Terminals, although two may be less confusing.

Note: Power must not be disconnected from the anemometer throughout this procedure.

2) Assuming the unit is set for Full Duplex, connect 9-way at [b] disconnect 9-way at [a]. Set Switch to position [b] (4 wire).

3) On Terminal B, enter CONFIGURATION MODE. Set Half Duplex (E2). The CONFIRM> prompt will appear.

4) Disconnect 9-way [b] and connect 9-way [a]. Set Switch to position [a] (2 wire).

5) On Terminal A, type “E” <ENTER> to confirm.

6) The unit should now be configured in Half Duplex mode.

Configuring WindObserver II for Full Duplex Operation.

1) Assuming the unit is set for Half Duplex, disconnect 9-way [b] and connect 9-way [a]. Set Switch to position [a] (2 wire).

2) On Terminal A, type “E1” to select Full Duplex. The CONFIRM> prompt will appear.

3) Disconnect 9-way [a] and connect 9-way [b]. Set Switch to position [b] (4 wire).

4) On Terminal B type “E” <ENTER> to confirm.

Page 29

Gill Instruments Ltd

_____________________________________________________________________________________________________________

________________________________________________________________________________________________

WindObserver II Page 29 Issue 18

Doc. No. 1390-PS-0004 January 2009

8.4. Units

The wind speed can be set to any of the following units:

Unit Abbreviation

Metres per sec m/s

Knots knots

Miles per hour MPH

Kilometres per hour kph

Feet per minute fpm

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. The following Table lists the possible outputs per second and the corresponding number of averaged samples. A 25ms sample period is used to process and output the results.

Outputs per Second Sample Average

1 39 2 19 4 9 5 7 8 4

10 3

8.6. Averaging (Digital Data)

The Averaging Period can be set from zero to 3600 secs. (1 hour). The default setting is zero. When averaging is enabled, data is output at a rate determined by the averaging period. The data is an average of valid data collected during the averaging period. If G is set to zero then averaging settings will be disabled.

8.7. Options

Speed of Sound (SOS) and Temperature

Either or both of these parameters can be selected or disabled Note that neither of these parameters is available in Tunnel or NMEA formats. SOS is useful for calculating air temperature with a rapid response. Sonic temperature is

derived from the SOS, based on an assumption of the composition of the atmosphere. Humidity will affect the result.

True temperature can be calculated by:

T = Ts

1+0.32 e/p

Where T = True temperature (Kelvin) Ts = Sonic temperature e = Vapour pressure of water in air p = absolute pressure of water in air

Page 30

Gill Instruments Ltd

_____________________________________________________________________________________________________________

________________________________________________________________________________________________

WindObserver II Page 30 Issue 18

Doc. No. 1390-PS-0004 January 2009

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

Gill Instruments Ltd

_____________________________________________________________________________________________________________

________________________________________________________________________________________________

WindObserver II Page 31 Issue 18

Doc. No. 1390-PS-0004 January 2009

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

string

Unit

identification

Speed of

sound

Temperature Status End of

string

Check

sum

Where

U axis wind speed

In increments of 0.01 units (±UUU.UU)

V axis wind speed

In increments of 0.01 units (±VVV.VV)

Value Units

Units

M Metres per second (m/s) N Knots (knots) P Miles per hour (MPH) K Kilometres per hour (kph) F Feet per minute (fpm)

Start of string

ASCII value 2

Unit identification

Letter A – Z (default A)

Speed of sound

In metres per second (if enabled)

Temperature

Sonic temperature in degrees C (if enabled)

Status Value Status

0 OK 60 Heating enabled and OK if enabled Any other value Warning or fault condition

- see Section 10.5

End of string

ASCII value 3

Check sum

Exclusive OR of all characters between Start of String and End of String reported as ASCII hex.

Page 32

Gill Instruments Ltd

_____________________________________________________________________________________________________________

________________________________________________________________________________________________

WindObserver II Page 32 Issue 18

Doc. No. 1390-PS-0004 January 2009

ASCII Polar format

Wind direction Wind speed

Units

<STX>A,121,000.08,M,+344.66,+021.76,00,<ETX>06

Start of

string

Unit

identification

Speed of

sound

Temperature Status End of

string

Check

sum

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

ASCII format – Tunnel Mode

In this mode, the output is given as signed (i.e. positive or negative) speeds along the ‘U’ (= South – North) axis.

Where: <STX> = Start of string character (ASCII value 2) WindSonic node address = Unit identifier U axis = U axis Wind Speed U axis = U axis Wind Direction Polarity

where 0 ( –U vector) is a wind from the North direction or 1 (+U vector) is a wind from the South

direction.

All other parameters See Section 8.8 ASCII UV format

STX> A, 001.59, 1, M, 00, <ETX> 2D

WindSonic

node

address

U axis

speed

U axis

polarity

Units Status Check

sum

Page 33

Gill Instruments Ltd

_____________________________________________________________________________________________________________

________________________________________________________________________________________________

WindObserver II Page 33 Issue 18

Doc. No. 1390-PS-0004 January 2009

8.9. Binary message format (UV, Polar and Tunnel)

Binary UV format

U axis wind speed

V axis wind speed

Units

0x81 0x81 000.04 -000.02 +345.01 +022.36 00 1

Start of string Speed of sound Temperature Status

Where

U axis wind speed

In increments of 0.01 units (±UUU.UU)

V axis wind speed

In increments of 0.01 units (±VVV.VV)

Value Units Units

1 Metres per second (m/s) 2 Knots (knots) 3 Miles per hour (MPH) 4 Kilometres per hour (kph) 5 Feet per minute (fpm)

Start of string Speed of sound

In metres per second (if enabled)

Temperature

Sonic temperature in degrees C (two’s complement signed) (if enabled)

Status Value Status

0 OK 60 Heating enabled and OK Any other value Warning or fault condition

- see Section 10.5

Binary Polar format

Wind speed Wind direction Units

0x81 0x81 006.04 265 +345.01 +022. 36 00 1

Start of string Speed of sound Temperature Status

Where

Wind direction

In degrees relative to N (DDD)

Wind speed

In increments of 0.01 units (±MMM.MM)

All other parameters See Section 8.9 Binary UV format

Page 34

Gill Instruments Ltd

_____________________________________________________________________________________________________________

________________________________________________________________________________________________

WindObserver II Page 34 Issue 18

Doc. No. 1390-PS-0004 January 2009

Binary Tunnel format

U axis wind speed Direction

Units

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

1 +U 0 -U

Other parameters See Section 8.9 Binary UV format

Page 35

Gill Instruments Ltd

_____________________________________________________________________________________________________________

________________________________________________________________________________________________

WindObserver II Page 35 Issue 18

Doc. No. 1390-PS-0004 January 2009

8.10. NMEA Format

Instrument

Identifier

Wind direction Wind speed Units

Checksum

Delimiter

$ IIMWV, 120, R, 002.10, M, A* CC

Start of string Instrument

type

Wind

measurement

Status Check

sum

Where

Wind direction

In degrees relative to N (DDD)

Wind speed

In increments of 0.01 units (±MMM.MM)

Units

M Metres per second (m/s) N Knots (knots) P Miles per hour (MPH) K Kilometres per hour (kph) F

Feet per minute (fpm)

Start of string

Instrument type

IIMWV

Wind measurement

R Relative wind measurement

Status

A Acceptable measurement V Void measurement

Check sum

Exclusive OR of all characters between ‘$’ and ‘*’ 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 for complete interface details.

Page 36

Gill Instruments Ltd

_____________________________________________________________________________________________________________

________________________________________________________________________________________________

WindObserver II Page 36 Issue 18

Doc. No. 1390-PS-0004 January 2009

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). They are available simultaneously with the digital outputs.

Channel outputs

The signals on the Channel outputs 1 and 2 are dependant on the Output format chosen. The signal on Channel 3 can be configured for either Status or Temperature.

Output format Channel 1 Channel 2 Channel 3

UV (M1, M3, or M7) U V

Polar (M2, M4, or M8) Magnitude Direction

NMEA (M5) Magnitude Direction

Tunnel (M6) U Speed U direction

Status or Temperature

Tunnel (M12) U Speed U Direction Tunnel (M13) U Speed U Direction

Status

If channel 3 is configured for Status, the output will be 0v (or 4mA) if the unit is in an OK condition. In a fault condition, error code 01, 02, or 04, the output will be +5v (or 0mA).

See Section 10.5 for the list of Error Codes.

Temperature

If channel 3 is configured for Temperature, it reports the temperature if it is between –40 and +70°C, scaled from +0.7V to +5V (6.25mA to 20mA). Temperatures outside this

range are reported as errors by setting the output to 0V (4mA).

Tunnel mode

In Tunnel mode, Channel 1 represents the Wind Speed along the U Axis, Channel 2 gives the direction of the wind along the U axis, where a –U vector (=wind from the ‘N’ direction) is represented by 0v (or 4mA), and a +U vector (=wind from the ‘S’ direction) by 5v (or 20mA).

Scaling

All analogue outputs are in m/s irrespective of the digital units of measurement setting and can be scaled to have a full-scale deflection of ±10 to ±70 units using the Z command.

In Polar mode the ± sign should be ignored. Only the + sign is effective. In all cases zero Wind Speed is represented by 0V or 4mA.

Averaging

Analogue Outputs are not averaged when using the G command.

Page 37

Gill Instruments Ltd

_____________________________________________________________________________________________________________

________________________________________________________________________________________________

WindObserver II Page 37 Issue 18

Doc. No. 1390-PS-0004 January 2009

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°. Using the Wraparound mode, when the wind first changes from 0° to 359°, there will be a step change on the output, but after this first time the output will change smoothly each time the wind passes through 360°. (Similarly, the first time the wind veers from 539° to 180°, there will be a step change, after which the output will

change smoothly).

Voltage output (V) Current output (mA)

Wind direction (degrees)

Standard Wraparound Standard Wraparound

0 0 0 4.00 4.00 180 2.5 1.67 12.00 9.33 360 5.0 3.33 20.00 14.67 540 N/a 5.0 N/a 20.00

Low wind speeds

Whilst the wind speed is below 0.05 metres/sec, the wind direction will not be calculated, all other output parameters will continue to update at the output rate.

The following Table shows Channel 1, 2 and 3 outputs with Polar Continuous, 4-20mA current outputs under various operating conditions.

Condition Channel 1

(Wind Speed)

Channel 2

(Wind Direction)

Channel 3

(Status)

Wind Speed, Greater Than

0.05m/s

Variable 4 to 20mA (value depends on Output scaling)

Variable 4 to 20mA (Value depends on

Output scaling)

4mA

(Unit functioning correctly)

Wind Speed, Less Than

0.05m/s

Variable close to 4mA.

Outputs last known good/valid current reading until wind increases above

0.05m/s.

4mA

(Unit functioning correctly)

Any Wind Speed with Failure Codes Output 01, 02, 04 etc

Fixed 4mA until fault clears.

Outputs last known good/valid current reading until fault clears.

0mA

(Failure code present)

Page 38

Gill Instruments Ltd

_____________________________________________________________________________________________________________

________________________________________________________________________________________________

WindObserver II Page 38 Issue 18

Doc. No. 1390-PS-0004 January 2009

9. 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.

This section describes the commands used to change settings when using terminal emulator software. For a fuller description of the settings and options see Section 8 - Message Formats & Options

Keystrokes are shown thus :- Type D3 and press ENTER

9.1. Entering Configuration mode

From Continuous mode From Polled mode

Type *

Type *N - where N is the Unit Identifier.

Note - the Unit Identifier must be entered as upper-case

The WindObserver II responds with a CONFIGURATION MODE message, stops reporting wind measurements, and waits for a command (as detailed below).

9.2. Returning to Measurement mode

Type Q and press ENTER

If in Continuous mode, the anemometer responds with wind measurements immediately, continuing at the selected Sampling rate.

If in Polled mode,

? Enables poll N Polls anemometer (where N is the Unit identifier entered as upper-case)

The anemometer replies with a single set of wind measurements

& Anemometer replies with Unit identifier ! Disables poll

Note:- If the unit is in Polled Mode it is always best to interrogate the unit for data with a

before the poll identifier to cater for the event that the power has been switched off or

power interrupted. 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.

Page 39

Gill Instruments Ltd

_____________________________________________________________________________________________________________

________________________________________________________________________________________________

WindObserver II Page 39 Issue 18

Doc. No. 1390-PS-0004 January 2009

9.3. Checking the configuration

We strongly recommend that, as a standard procedure, you use this command ( D3 ) prior to, and after, changing any settings. It shows the current settings for all the alterable settings. We suggest you note down your settings, so that you can easily return to them.

Type * Enters Configuration Mode (from Continuous mode)

Or Type *N Enters Configuration Mode (from Polled mode)

Type D3 and press ENTER The WindObserver II responds with the current configuration settings.

The factory default settings for a heated unit are: -

A0 B3 C1 E1 F1 G0000 H1 J1 K1 L1 M2 NA O1 P1 T1 U1 V1 X1 Y1 Z1

How to change these settings is explained in the following sections.

To return to Measurement mode Type Q and press ENTER

9.4. Changing settings

To change a setting, first go into Configuration mode and then refer to the sections below. 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 M5. When the unit is returned to the Measurement mode Type Q and press ENTER, it will be in NMEA format.

Note: The factory-set (default) settings are shown in bold in the following sections.

9.5. Configuration Settings

Ax - Speed of Sound (SOS) and Temperature

Setting Configuration code

Disable both A0

Report SOS

Report Sonic temperature

Report SOS and Sonic temperature

Note that neither of these parameters is available in Tunnel or NMEA formats.

Page 40

Gill Instruments Ltd

_____________________________________________________________________________________________________________

________________________________________________________________________________________________

WindObserver II Page 40 Issue 18

Doc. No. 1390-PS-0004 January 2009

BX - Baud Rate

Setting Configuration code

2400

4800

9600 B3

19200

38400

1200

300

To change the Baud rate when using HyperTerminal: -

Eg. If set to B3 (9600 baud) and it is required to set to Baud rate to B2 (4800 baud).

Type * to enter Configuration Mode.

Type B 2 and press ENTER, (Do not type any further commands at this stage).

Close the 9600 Baud HyperTerminal connection.

Open HyperTerminal and set the new connection Baud Rate to 4800 baud.

Type B and press ENTER, the letter B will be shown followed by B2

Type Q and press ENTER, data will scroll at the new baud rate.

Cx- Analogue Output Polar Mode Direction Wraparound

Setting Configuration code

Wraparound (0 - 539°°°°) C1

Standard

Dx- Diagnostic and Configuration Command (see also Section 10.6)

Each of these commands causes a response from the WindObserver II.

Item

Command

code

Typical response

Type and serial No.

*901001 (where * = E (Unheated unit), F = (Heated unit)

Software version

5.00

Unit configuration

Current configuration: A0 B3 C1 E1 F1 G0000 H1 J1 K1 L1 M2 NA O1 P1 T1

U1 V1 X1 Y1 Z1

Analogue ID (if present)

Analogue Active (if fitted) or No analogue fitted.

Anemometer power supply voltage

+29.8

Integrity check

See Para 10.6 Bench Tests

Software Version (Internal format)

SW Build Reference 2387-100-08071-RC

Page 41

Gill Instruments Ltd

_____________________________________________________________________________________________________________

________________________________________________________________________________________________

WindObserver II Page 41 Issue 18

Doc. No. 1390-PS-0004 January 2009

Ex - Full Duplex/Half Duplex Mode

Setting Configuration code

Full duplex E1

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 F1

8 bits, even parity, 1 stop bit

8 bits, odd parity, 1 stop bit

Gx to Gxxxx - Averaging (Digital Outputs only)

Setting Configuration code

Averaging (Default) G0000

Enter the required averaging period in seconds as a four-figure number between 0000 and

3600.

Hx - Heating (If fitted)

Heating is autonomous and requires no set-up once activated.

Setting Configuration code

Disabled H1

Activated

Jx - Analogue Power-up Tests

Setting Configuration code

Disable analogue power-up tests on switch on

Enable single analogue power-up test on Switch on

Enable continual cycling of analogue power-up tests

Disable continual cycling of analogue power-up tests

Analogue Power up tests cycle: Analogue Output Voltage connections between 0v, 1.25v, 2.5v, 3.75v and 5v. Analogue Output Current connections between 0mA, 5mA, 10mA, 15mA and 20mA

Page 42

Gill Instruments Ltd

_____________________________________________________________________________________________________________

________________________________________________________________________________________________

WindObserver II Page 42 Issue 18

Doc. No. 1390-PS-0004 January 2009

Kx – NMEA Settings

Setting Configuration code

NMEA string “IIMWV” K1

NMEA string “WIMWV”

Lx - ASCII Message Terminator

Setting Configuration code

CR LF L1

Mx to Mxx - Message Format

Output format Configuration code

ASCII UV Continuous

ASCII Polar Continuous M2

ASCII UV Polled (tri-state) *

ASCII Polar Polled (tri-state) *

NMEA Continuous

Binary Tunnel Continuous

Binary UV Continuous

Binary Polar Continuous

ASCII Tunnel Continuous

M12

ASCII Tunnel Polled (tri-state) *

M13

* If units are to be networked, they MUST be given unique Unit Identifiers

Nx - Node Address

Item Options Command

Node Address

A… -(A to Z)

N<A>

If used in a multi-drop system then it is recommended that ID’s A to F and K, M, N and P are not used, as these characters can be present in the data string.

Page 43

Gill Instruments Ltd

_____________________________________________________________________________________________________________

________________________________________________________________________________________________

WindObserver II Page 43 Issue 18

Doc. No. 1390-PS-0004 January 2009

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 condition.

CSV data changing to error status code

condition.

A,235,000.77,M,00,0A $IIMWV,191,R,000.55,M,A*19

A,,,M,04,24 $IIMWV,,R,,M,V*29

Fixed Field data changing to error status code condition.

A,266,000.73,M,00,08 $IIMWV,191,R,000.55,M,A*19

A,999,999.99,M,04,0A $IIMWV,999,R,999.99,M,V*07

Px - Output Rate

Outputs per second 1

2 4 5 8 10

Configuration code

P3 P2 P4 P5 P6

Q- Measurement Mode

See Section 9.2.

Tx - Analogue Output Voltage or Current settings (if fitted)

Setting Configuration code

Voltage (0 to 5V) T1

Voltage (–2.5V to +2.5V)

Current (4-20mA)

Ux – Digital Output Units

Units metres/sec

(m/s)

knots

(knots)

miles / hour

(MPH)

kilometre/hour

(kph)

feet / minute

(fpm)

Configuration

code

U2 U3 U4 U5

Vx- Vertical Output Padding

Setting Configuration code

Disable vertical output padding V1

Enable vertical output padding

Page 44

Gill Instruments Ltd

_____________________________________________________________________________________________________________

________________________________________________________________________________________________

WindObserver II Page 44 Issue 18

Doc. No. 1390-PS-0004 January 2009

Xx - 45°°°° Alignment Offset/Inverted Operation

Setting Configuration

code

Notes

Align U axis with transducer axis

X1. Aligns U axis with North/South axis.

Align U axis +45° to transducer axis

X2. This re-aligns both U&V and polarity 45˚ to transducer axis.

Reverses Polar Direction

X3 reverses reported polar direction to allow the instrument to be mounted upside down. N.B. Does NOT affect UV alignment (Mode 1, 3).

Align @ 45° from North

X4 set polar alignment at 45 degrees from North when instrument is mounted upside down.

Does NOT affect UV alignment (Mode 1, 3).

Figure 4 shows the polarity of U and V if the wind components along the U and V axis are blowing in the direction of the respective arrows.

-U

+V -V

Figure 4 UV Polarity

Page 45

Gill Instruments Ltd

_____________________________________________________________________________________________________________

________________________________________________________________________________________________

WindObserver II Page 45 Issue 18

Doc. No. 1390-PS-0004 January 2009

Yx – Analogue Output, Channel 3 (if fitted).

Setting Configuration code

Status Y1

Temperature

Zx – Analogue Output Scaling (if analogue outputs fitted).

Setting

±±±± 10

±20 ±30 ±40 ±50 ±60 ±70

Configuration code

Z2 Z3 Z4 Z5 Z6 Z7

Page 46

Gill Instruments Ltd

_____________________________________________________________________________________________________________

________________________________________________________________________________________________

WindObserver II Page 46 Issue 18

Doc. No. 1390-PS-0004 January 2009

10. MAINTENANCE & FAULT-FINDING

10.1. Cleaning and Handling

When installing the unit handle with lint free gloves and degrease the unit to reduce the build up of deposits.

If there is any build up of deposit on the unit, it should be gently cleaned with a cloth, moistened with soft detergent. Solvents should not be used, and care should be taken to avoid scratching any surfaces. The unit must be allowed to defrost naturally after being exposed to snow or icy conditions, do NOT attempt to remove ice or snow with a tool.

Do NOT remove black “rubber” transducer caps.

10.2. Servicing

There are no moving parts or user-serviceable parts requiring routine maintenance. Opening the unit or breaking the security seal will void the warranty and the calibration. In the event of failure, prior to returning the unit to your authorised Gill distributor, it is

recommended that:

 All cables and connectors are checked for continuity, bad contacts, corrosion etc.  A bench test is carried out as described in Section 10.6.  Contact your supplier for advice if failure persists.

10.3. Fault-finding

Symptom Solution

No output

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. Check unit is in Continuous mode. Check that in-line communication devices are wired correctly. NOTE: It is usual for Anemometer TX + to be connected to

converter device RX +.

Corrupted output

Check comms settings of WindObserver II and host system match.

Try a slower baud rate. Check cable lengths and type of cable.

One way communication

Check wiring is in accordance with the manual.

Failed / Incorrect WindObserver II output, data invalid flag

Check that transducer path is not blocked.

Page 47

Gill Instruments Ltd

_____________________________________________________________________________________________________________

________________________________________________________________________________________________

WindObserver II Page 47 Issue 18

Doc. No. 1390-PS-0004 January 2009

10.4. Returning unit

If the unit has to be returned, it should be carefully packed in the original packaging and returned to your authorised Gill distributor, with a full description of the fault condition.

10.5. Status (error) codes

The Status code is sent as part of each wind measurement message.

Code Status Condition

00 OK Sufficient samples in average period

OK and heating enabled

Sufficient samples in average period

A OK NMEA data Acceptable

01 Axis 1 failed Insufficient samples in average period on U axis

02 Axis 2 failed Insufficient samples in average period on V axis

04 Axis 1 and 2 failed Insufficient samples in average period on both axes

08 NVM error NVM checksum failed, data could be uncalibrated.

09 ROM error ROM checksum failed, data could be uncalibrated.

10 System gain at max. Inaccurate data likely

50 Marginal system gain Data valid, but marginal operation

Measurement average building.

Data valid but warns that average period not reached when averaging used.

Heating current tripped or electronic failure,

Valid data still output

Heater Thermistor open circuit

Valid data still output.

Heating element open circuit

Valid data still output, Heater Element or Heater PSU has dropped out/failed

V 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 D3 See Section 9.3 Checking the Configuration.

Check for normal output data, and that the Status Code is OK – 00, 60 or A (for NMEA format).

If the status code is other than these, refer to Section 10.5 Status (error) codes. Use an office fan or similar to check that the unit is sensing wind, turning the unit to

simulate changing wind direction and to check that both axes are functioning. Note that this a quick functional test. There are no calibration adjustments; the unit is

designed NOT to require re-calibration within its lifetime. Gill has provided and Integrity Check, see next page for details.

Page 48

Gill Instruments Ltd

_____________________________________________________________________________________________________________

________________________________________________________________________________________________

WindObserver II Page 48 Issue 18

Doc. No. 1390-PS-0004 January 2009

Integrity Check Chamber (ICC)

The software to perform the Integrity Check (IC) is incorporated in the latest WindObserverII’s.

The IC is designed to:

1. Identify any gross changes in the head geometry that would affect the performance.

2. Provide a zero wind environment to confirm the WindObserverII zero calibration.

The ICC has been designed to be used in an indoor still air environment with an ambient temperature between 17°C and 23°C. When conducting the test it is important that the ICC is assembled on to the WindObserver II head and not touched or moved during the test.

This test is only valid if undertaken with an ICC purchased from Gill.

Integrity & Zero Wind Check

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.

2. Enter Measurement Mode and Record/View data

In still air wind speed measurements should not exceed 0.03m/s. If wind speed exceeds

0.03m/s contact Gill Instruments.

Integrity Check

Ensure the ICC is assembled correctly on the WindObserver II. Using HyperTerminal, enter Configuration Mode as described in Section 9.

Enter D6. A typical report as shown below will be displayed. D6 ALIGMENT LIMITS: U=2424,2524 V=2434,2434 ALIGNMENT U:2474 *PASS* ALIGNMENT V:2484 *PASS* D6 If ‘Refer to Manual’ is shown check test temperature conditions are 17 to 23 deg C and

tested under zero wind condition. If there has been no significant changes to The WindObserver II head configuration then

*PASS* will confirm correct operation. Alterations to the head geometry can result in a *FAIL* or ‘Insufficient Samples’

message. If this occurs please contact Gill Instruments.

Page 49

Gill Instruments Ltd

_____________________________________________________________________________________________________________

________________________________________________________________________________________________

WindObserver II Page 49 Issue 18

Doc. No. 1390-PS-0004 January 2009

11. APPENDICES

11.1. Glossary & Abbreviations

Item Meaning

CAL Calibration CR Carriage Return CRLF Carriage Return Line Feed CSV Comma Separated Variable ENG Engineering ESC ESCape key on keyboard used to stop any process that is being

executed ETX End of string character FAC Factory fpm Feet per minute GND GrouND HEX HEXadecimal I/P InPut IP66 Protection Classification KPH Kilometres per Hour LF Line Feed m/s Metres per second MAG MAGnitude - scalar reference to wind speed MAX MAXimum MPH Miles per Hour NEMA National Electrical Manufacturers Association NMEA 0183

(version 3)

National Marine Electronics Association standard for interfacing

marine electronic navigational devices No: Number NVM Non-Volatile Memory O/P Output PC IBM compatible Personal Computer PCB Printed Circuit Board POR Power On Reset PROCOMM Terminal emulator software package ROM Read Only Memory RS232 Communications standard

Page 50

Gill Instruments Ltd

_____________________________________________________________________________________________________________

________________________________________________________________________________________________

WindObserver II Page 50 Issue 18

Doc. No. 1390-PS-0004 January 2009

Item Meaning

RS422 Communications standard RS485 Communications standard RTS Request To Send RX Receive RXD Received Data S/W SoftWare SOS Speed Of Sound SEC SECond STX Start of string character TERM TERMinal TX Transmit TXD Transmitted Data +VE Positive

-VE Negative WindCom Gill software used to configure WindObserver II WRT 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

Gill Instruments Ltd

_____________________________________________________________________________________________________________

________________________________________________________________________________________________

WindObserver II Page 51 Issue 18

Doc. No. 1390-PS-0004 January 2009

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.

If, for example, a North wind is blowing, then the time taken for the pulse to travel from N to S will be faster than from S to N, whereas the W to E, and E to W times will be the same. The wind speed and direction (and the speed of sound) can then be calculated from the differences in the times of flight on each axis. This calculation is independent of factors such as temperature.

Page 52

Gill Instruments Ltd

_____________________________________________________________________________________________________________

________________________________________________________________________________________________

WindObserver II Page 52 Issue 18

Doc. No. 1390-PS-0004 January 2009

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)

WindObserver II Ultrasonic Anemometer (Non-Heated with Analogue OutputsVariant)

Manufactured by: Gill Instruments Ltd

Saltmarsh Park

67 Gosport Street

Lymington, SO41 9EG

to which this declaration relates, are in conformity with the protection requirements of Council Directive 89/336/EEC on the approximation of the laws relating to electromagnetic compatibility.

This Declaration of Conformity is based upon compliance of the product with the following harmonized standards:

EN60945:2002

EN61326:2006

Emissions Using EN60945

Immunity Using EN61000-4-2 to EN61000-4-5

EN61000-4-6 (Excluding 150kHz to 200kHz Conducted Immunity).

EN61000-4-11

Signed by

A.C.R. Stickland – Director

Date of issue: 16/10/2008

Place of issue: Gill Instruments Ltd

Saltmarsh Park

67 Gosport Street

Lymington, SO41 9EG