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User Manual - Gill Instruments

1. U axis wind speed V axis wind speed Units o lt STX gt A 000 04 000 02 M 345 01 022 36 00 lt ETX gt 25 A oe es Start of Unit Speed of Temperature Status End of Check string identification sound string sum Where U axis wind speed In increments of 0 01 units EUUU UU V axis wind speed In increments of 0 01 units EVVV 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 WindObserver II Page 33 Issue 22 Doc No 1390 PS 0004 July 2014 Gill Instruments Ltd ASCII Polar format Wind direction Windspeed Units lt STX gt A 121 000 08 M 344 66 021 76 00 lt ETX gt 06 Zo ee i Start of Unit Speed of Temperature Status End of Check string identification sound string sum Where Wind direction In degrees relative to N DDD Wind speed In increments of 0 01 units 4 MMM MM All other parameters See Section 8 8 ASCH UV format ASCII Polled UV and Polar Wh
2. 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 WindObserver II Page 17 Issue 22 Doc No 1390 PS 0004 July 2014 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 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 Anemometer Channel 1 Pair 8 White Channel 2 Pair 8 Red Channel 3 Pair 6 Brown Ov return Pair 6 Black or Pair 4 Black 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 Channel 1 Pair 8 White Channel 2 Pair 8 Red Channel 3 Pair 6 Brown Anemometer Ov return 300Q max Pair 6 Black or P
3. Low wind speeds Whilst the wind speed is below 0 05 metres sec the wind direction will not be calculated and the last known good direction figure is shown All other output parameters will continue to update at the output rate WindObserver II Page 26 Issue 22 Doc No 1390 PS 0004 July 2014 Gill Instruments Ltd 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 a 2 wire HYPER TERMINAL RS485 I F A Half D co USB a a f f f f SWITCH Wel T f f f f HYPER TERMINAL RS422 I F A B Full D pee USB b 4 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
4. The WindObserver II responds with a CONFIGURATION MODE message stops reporting wind measurements and waits for a command as detailed below 9 3 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 WindObserver II Page 42 Issue 22 Doc No 1390 PS 0004 July 2014 Gill Instruments Ltd If in Polled mode 7 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 8 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 9 4 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 fr
5. 0 65m s 0 145mph 2 12m s 0 01m s 0 01m s 0 359 ae 1 40 C to 70 C Supplied as part of standard message 0 01 m s None 9 30 V DC 30mA 12VDC non analogue unit 9 30V DC 50mA 12V DC analogue unit reverse voltage protected Allow 3A 22v to 30v max AC rms or DC RS422 full duplex RS485 2 wire network facility 1200 2400 4800 9600 19200 38400 8 data odd even or no parity 1 stop bit 3 speed direction status SOS or Sonic Temperature Multiples of 10m s up to 70m s 2 5V 0 5V or 4 20mA 60 Ohms 10 300 Ohms 381mm x 213mm 1 5kg Stainless Steel 316 IP66 NEMA4X 55 C to 70 C heated version 0 to 100 RH 300mm hr BS EN 60945 Emissions BS EN 61000 4 2 6 11 Immunity MILSTD810F Method 521 1 Procedure 1 Traceable to UK national standards None required See Section 10 6 Zero Wind Check WindObserver II Doc No 1390 PS 0004 Issue 22 July 2014 Page 6 Gill Instruments Ltd 5 PRE INSTALLATION 5 1 Equipment supplied WindObserver II 1390 PK 006 RS422 output or WindObserver II 1390 PK 026 RS422 output and analogue outputs or WindObserver II 1390 PK 007 RS422 output and de icing or WindObserver II 1390 PK 027 RS422 output analogue outputs and de icing and Installation kit comprising a gasket and four Stainless Steel screws and WindObserver II User Manual this manual and Integrity Check Chamber ICC 1277 00 052 Opti
6. Doc No 1390 PS 0004 July 2014 Gill Instruments Ltd Therefore if the RWALONG number is 10 default and Averaged Data Output Period is 60 seconds then the rolling averaged Direction and Magnitude data is calculated over rolling 600 readings 8A NI 293 008 03 M 338 000 05 51 947 BA NI 301 000 03 H 304 000 04 51 43 6A M15 299 000 03 H 285 000 02 51 4D Bn NI 303 000 02 M 336 000 02 51 47 BA MI 291 000 03 M 200 000 64 DI 848 Bn H15 291 000 02 H 301 000 03 51 948 BA H15 243 000 04 M 172 001 52 51 42 BA H15 236 000 03 H 090 000 08 51 AA Bn H15 243 000 03 H 099 000 09 51 AE Bn H15 198 000 04 M 088 000 39 00 AP BA NI 180 000 04 MN 099 000 09 00 AT BA M15 180 000 03 H 345 000 03 00 4E The Maximum Gust Direction is the direction of the maximum gust measured over the short term output period Gust is generated from a rolling 3s average of the short term output period and reset at the end of short term output period The maximum Gust Magnitude is the magnitude of the maximum gust measured over the short term output period Gust is generated from a rolling 3s average of the short term output period and reset at the end of short term output period Notes Non Heat Enabled Units Whenever the unit is powered up then until the unit has reached its minimum long term averaging interval the status code will read 51 Measurement Average
7. 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 If a heated unit is used on longer cables than supplied consideration should be given to powering the heater using lower gauge wire or paralleling wires to reduce volt drops 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 at regular intervals such that the WindObserver cable gland does not support the cable weight 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 WindObserver II Page 10 Issue 22 Doc No 1390 PS 0004 July 2014 Gill Instruments Ltd 6 4 Connec
8. 19 4 9 5 7 8 4 10 3 8 6 Averaging Digital Data There are two digital averaging options 8 6 1 G Command Averaging Using the G Command in association with modes other than M14 M15 and polled modes 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 For instance if the unit is set for G0025 then every 25 seconds there will be a single result output that provides the average of the wind direction and magnitude data over the last 25 seconds A 219 000 78 M 60 OD A 202 000 79 M 60 06 A 207 001 22 M 60 0C A 220 000 48 M 60 04 WindObserver II Page 28 Issue 22 Doc No 1390 PS 0004 July 2014 Gill Instruments Ltd 7 6 2 Modes 14 and 15 Road Weather Averaging RWA The averaging is implemented with reference to the following standard e Guide to Meteorological Instruments and Methods of Observation World Meterological Organization WMO No8 seventh edition 2008 ISBN 978 92 63 10008 S The direction and magnitude outputs are derived from the vector sum of U and V over the RWALONG averaging period default 10 minutes in P1 The gust output is derived from the vector sum of U and V over 3 readings 3 seconds in P1 and the max gu
9. Building Heat Enabled Units On units where heat is enabled Code 51 will not be output during the measurement average building period therefore allow for this period on power up before taking readings to be fully averaged maximum period of 10 minutes The G Command setting has no effect on Mode 14 and Mode 15 Settings Mode 14 Averaging Polled Mode See Mode 15 for data output format and command explanations For ease of use before changing to this Mode set all other WindObserver parameters first including Px Measurement Rate P1 to P6 this command sets the underlying measurement rate from 1Hz to 10Hz RWASHORT xx Short Term Number where xx is a number from 10 to 60 RWALONG xx Long Term Number where xx is a number from 1 to 10 WindObserver II Page 30 Issue 22 Doc No 1390 PS 0004 July 2014 Gill Instruments Ltd Once set for Mode 14 to Poll for averaged data use the command followed by the unit designator A default setting ensure capitol letter used The polled mode commands available in this mode are Description Command WindObserver response Enable Polled Mode None WindObserver Unit Identifier N deeg Z Output generated Disable Polled mode None Request WindObserver Unit amp Arara Z as configured Identifier Enter Configuration mode lt N gt CONFIGURATION MODE Where lt N gt is the unit identifier if used in a multi drop system then it is recommen
10. Current 4 20mA T3 Ux Digital Output Units Units metres sec knots miles hour kilometre hour feet minute m s knots MPH kph fpm Configuration cade U1 U2 U3 U4 LUS WindObserver II Page 47 Issue 22 Doc No 1390 PS 0004 July 2014 Gill Instruments Ltd Vx Vertical Output Padding Setting Configuration code Disable vertical output padding M1 Enable vertical output padding V2 Xx 45 Alignment Offset Inverted Operation Setting Configuration Notes code Align U axis with Ki X1 Aligns U axis with North South axis transducer axis Align U axis 45 XD X2 This re aligns both U amp V and polarity 45 to to transducer axis transducer axis Reverses Polar X3 reverses reported polar direction to allow the Direction X3 instrument to be mounted upside down N B Does NOT affect UV alignment Mode 1 3 Align 45 from X4 set polar alignment at 45 degrees from North North X4 when instrument is mounted upside down Does NOT affect UV alignment Mode 1 3 Error Reference source not found 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 Figure 4 UV Polarity U V U Yx Analogue Output Channel 3 if fitted Setting Conf
11. 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 6mm 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 WindObserver II Page 11 Issue 22 Doc No 1390 PS 0004 July 2014 Gill Instruments Ltd Default Settings The factory default settings are Non heated units AO B3 Cl El F1 G0000 JI K1 L1 M2 NA O1 PI T1 U1 V1 XI YI Zi Heated units AU B3 Cl El Fl G0000 H1 JI K1 L1 M2 NA O1 PI T1 U1 V1 X1 YI Zi 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 WindObserver II Page 12 Doc No 1390 PS 0004 Issue 22 July 2014 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 Cable 4 to 6 Twisted Pairs mM Win
12. M 336 HHH 03 M 200 000 02 H 301 000 04 M 172 001 03 M 090 000 EIN DS 04 M 088 00O HA M 099 000 03 M 345 000 03 H 099 000 059 51 947 04 531 943 02 51 4D 02 51 947 64 91 48 Q3 51 48 02 01 R 08 51 44 39 HH 4B 09 60 41 03 00 4E WindObserver II Doc No 1390 PS 0004 Page 31 Issue 22 July 2014 Gill Instruments Ltd 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 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 WindObserver II Page 32 Issue 22 Doc No 1390 PS 0004 July 2014 Gill Instruments Ltd 8 8 ASCII message format UV Polar and Tunnel ASCII UV format
13. 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 Check that in line communication devices are wired correctly NOTE It is usual for Anemometer TX to be connected to converter device RX Check comms settings of WindObserver II and host system B match oa Try a slower baud rate Check cable lengths and type of cable One way Check wiring is in accordance with the manual communication Failed Incorrect Check that transducer path is not blocked WindObserver II output data invalid flag WindObserver II Page 49 Issue 22 Doc No 1390 PS 0004 July 2014 Gill Instruments Ltd 10 4 Safe Mode If a unit is received that will not communicate or the configuration settings are not known then Safe Mode can be used to establish communication with the WindObserver II and change configuration settings Initial Set Up The WindObserver 65 RS422 Pair 1 and Pair 2 TX and RX output connections 4 wires are connected to a PC via an RS422 to RS232 USB Converter Open a Terminal program e g Windows HyperTerminal or use Gill Wind Software as a Terminal program Select the required COM port Set the Baud rate to 19200 baud if using the Wind Terminal program it opens at 19200 baud To Place the unit into
14. 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 Do not apply clamps to the WindObserver cylinder body as this will distort the cylinder and affect sealing 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 W
15. 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 WindObserver II Page 8 Issue 22 Doc No 1390 PS 0004 July 2014 Gill Instruments Ltd 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 gt Always check the installation to ensure the WindObserver II is n
16. 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 ASCI UV Continuous No M1 Polled Yes M3 Continuous No M2 ASCII Pol gei Polled Yes M4 ASCII Tunnel Continuous No M12 ASCII Tunnel Polled Yes M13 NMEA Continuous No M5 Binary Tunnel Continuous No M6 Binary UV short Continuous No M7 Binary Polar Continuous No M8 ASCII Polar Continuous No M15 Averaged ASCII Polar Polled Average Yes M14
17. valid current OmA Codes Output 01 reading until fault 02 04 etc clears Failure code present WindObserver II Page 41 Issue 22 Doc No 1390 PS 0004 July 2014 Gill Instruments Ltd 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 gillinstruments com Alternatively you may use terminal emulator software such as HyperTerminal 9 1 Configuring using HyperTerminal Note Other terminal emulators are configured in a very similar way 1 Decide on an available Com port that you want to use Usually Com1 2 Run Hypertrm exe Typically accessed via Start gt All Programs gt Accessories gt Communications gt Hyperterminal Create a New Connection File gt New Connection Enter a Name eg WindObserver II Change Connect Using to Direct to Com 1 or other Com port as required Adjust the Port settings to match WindObserver settings WindObserver default settings are Bits per second 9600 Data bits 8 Parity None Stop bits 1 Flow Control Handshaking None Click on OK and data similar to the following example will scroll on screen at the output rate A 229 002 74 M 00 06 NM PY 9 2 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
18. way at a Set Switch to position b 4 wire 3 On Terminal B enter CONFIGURATION MODE Set Half Duplex E2 The CONFIRM gt 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 lt ENTER gt 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 gt 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 lt ENTER gt to confirm WindObserver II Page 27 Issue 22 Doc No 1390 PS 0004 July 2014 Gill Instruments Ltd 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 Gill Instruments Ltd PCI Connector Pin and Cable assignments Anemometer connector 15 way Pin Designation Chassis RS422_ RXB RS422_TXB Digital OV Signal ground Supply V Analogue output V1 Not used Analogue output V2 RS422_RXA RS422_TXA Supply V O GO JA NHN BR Go A ra kecch k N Analogue output V4 Analogue 0V Not used Analogue output V3 nA A Ww 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 V 3 Anemometer V 4 Anemometer V WindObserver II Page 16 Issue 22 Doc No 1390 PS 0004 July 2014 Gill Instruments Ltd RS 232 Output 9 way Pin O GO JA Ch NM BP Go A ra Designation DCD RX data TX data DTR Signal Ground DSR RTS CTS RI RS422 Network In 9 way Skt Pin O GO JA HN BW NK Designation Not connected Not connected Not connected RS422_ RSA Signal ground RS422_ TXA RS422 TXB RS422 RXB Chassis RS422 Network Out 9 way Plg
20. MWV 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 El Fl G0 K1 L1 M5 O1 P1 U1 Consult specification NMEA 0183 version 3 available on the web www nmea org for complete interface details WindObserver II Page 38 Issue 22 Doc No 1390 PS 0004 July 2014 Gill Instruments Ltd 8 11 Averaging Format Modes 14 and 15 See also Para 7 6 2 Start of String Mode Unit Identification Wind Wind Units Max Gust Max Gust Direction Speed lt STX gt A M15 270 002 02 M 253 002 83 00 lt ETX gt 4D TI Status End of Check Direction Speed String Sum Start of string ASCII value 2 Unit identification Letter A Z default A Mode M14 Polled Averaging M15 Continuous Output Averaging Wind Direction In degrees relative to North DDD settable average of direction in degrees Wind Speed In increments of 0 01 units MMM MM settable average of speed in m s Units M Metres per Second N Knots P Miles per Hour K Kilometres per Hour F Feet per Minute Max Direction Gust In degrees relative to North DDD Max Gust Speed In increments of 0 01 units E MMM MM Status Value Status 00 OK 60 Heating enabled and OK if enabled 51 Means that the averaging is incomplete non heat en
21. PS 0004 July 2014 Gill Instruments Ltd 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 STX gt A 001 59 1 00 M lt ETX gt 2D AS WindSonic U axis U axis Status Units Check node speed polarity sum address Where lt STX gt Start of string character ASCII value 2 WindObserver 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 ASCH UV format WindObserver II Page 35 Issue 22 Doc No 1390 PS 0004 July 2014 Gill Instruments Ltd 8 9 Binary message format UV Polar and Tunnel Binary UV format U axis wind speed Start of string V axis wind speed 0x81 0x81 000 04 000 02 345 01 022 36 00 1 Units we Speed of sound Temperature Status Where U axis wind speed V axis wind speed Units Start of string Speed of sound Temperature Status Binary Polar format In increments of 0 01 units EUUU UU In increments of 0 01 units EVVV VV Value 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 In metres per second if enabled Sonic temperature in degrees C two s complement sig
22. Safe Mode Turn off the WindObserver II Ensure the Terminal program is set for 19200 baud Hold down the PC keyboard key and turn on the WindObserver II Power Supply The words SAFE MODE should appear on the terminal screen If not then power down the WindObserver II hold the key and re power sensor To now check the unit Type D1 and press Enter to see serial number Type D2 and Press Enter to see Firmware version Type D3 to see configuration settings SAFE MODE D1 F922036 Di D2 5 00 D2 D3 current configuration AB B2 Ci E1 Fi GOGG H2 Ji Ki L1 MS NA O2 Pi Ti Ul Vi X1 Y1 Z1 Change settings if required Type Q and press Enter to go back into measurement mode If powering down the instrument and repowering and no change has been made to the baud rate B command then open a new terminal program at the units original baud rate setting the default setting would be 9600 Bauds WindObserver II Page 50 Issue 22 Doc No 1390 PS 0004 July 2014 Gill Instruments Ltd 10 5 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 6 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 60 sere hean
23. WindObserver User Manual Ultrasonic Anemometer Parts 1390 PK 006 1390 PK 007 1390 PK 026 and 1390 PK 027 Doc No 1390 PS 0004 Issue 22 Applies to firmware 2387 6 04 onwards Gill Instruments Limited Saltmarsh Park 67 Gosport Street Lymington Hampshire S041 9EG UK Tel 44 1590 613500 Fax 44 1590 613555 Email anem gillinstrtuments com Website www gillinstruments com Gill Instruments Ltd Contents 1 FOREWORD E 5 2 INTRODUCTION BE 5 3 FAST TRACK SET UP socascccsctssecccstccsscssccssareccsestcasccesinencacsecatisasedeudseaisences 5 4 SPECIFICATION E 6 5 PRE INSTALLATION sivscscsssccstnccacecscssidsstsdnadssncsstdscscsnndecisestdesacccniendenstdess 7 5 1 Equipment supplied ccccceeceeeeeeeeceeeaeeeeeeeeeeeeeeeaaaeaaaeeeeeseeeeaaaaaeeeeeeeeeeeaaas 7 5 2 Installation reguiremente trennen ennn 7 6 INSTALLATION WE 9 6 1 Installation Guidehne Skisse asn Beeler Eet a 9 6 2 Bench Systemi E 10 6 3 CADIING E 10 6A e Ee E 11 Default Settings A 12 Connecting to a PC with a RS422 or RS485 Input 13 Networking unt 14 Connecting to a PCI Unit with RS422 Imput ccceecceeee cette eeeeteteeeeeeeeeetees 15 Indoor Power and Communications Interface Part 1189 PK 021 0 ee 15 PCI Electrical Power Requirements ssssrrrrrrttttttretttttttrrttttrtttrtrrrrrnEEEEEnn neea 15 PCI Connector Pin and Cable assignments esssseeeeeeeesseiietrreesererrrrrrrssserrrne 16 An
24. Ximum MPH Miles per Hour NEMA National Electrical Manufacturers Association NMEA 0183 National Marine Electronics Association standard for interfacing version 3 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 WindObserver II Page 53 Issue 22 Doc No 1390 PS 0004 July 2014 Gill Instruments Ltd 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 WindObserver II Doc No 1390 PS 0004 Page 54 Issue 22 July 2014 Gill Instruments Ltd 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 com
25. abled units only Any other value Warning or fault condition see Section 9 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 WindObserver II Page 39 Issue 22 Doc No 1390 PS 0004 July 2014 Gill Instruments Ltd 8 12 Analogue outputs and options Analogue outputs are available as an option on the WindObserver I 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 Binary U V Polar M2 M4 or M8 Binary Magnitude Direction oo Status or Temperature NMEA M5 Magnitude Direction Binary Tunnel M6 U Speed U direction Tunnel M12 U Speed U Direction Tunnel M13 U Speed U Direction Polar M14 M15 Magnitude Direction Status or Temperature Status If channel 3 is configured for Status the output will be Ov or 4mA if the unit is in an OK condition In a fault condition error code 01 02 or 04 the output will b
26. air 4 Black WindObserver II Page 18 Issue 22 Doc No 1390 PS 0004 July 2014 Gill Instruments Ltd 6 6 Power supplies All WindObserver II units Sensor Supply Voltage 9 to 30v DC Current 30mA Average 5 0mA Max 12v de non analogue unit Current 50mA Average 65mA Max 12v dc analogue unit 0 5v setting e The WindObserver II has reverse polarity protection Wind Observer I Units with Heating Heater Supply Voltage 22V to 30V max AC RMS or DC Current allow for 3A e The AC Supply must be isolated from Mains Supply e The heating module requires a separate power supply e Heater Cable length should be minimised to avoid cable volt drops and ensure maximum voltage received at the Anemometer e 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 e Fach transducer is heated independently and will be active when ambient temperature drops below approximately 15 C each transducer will de activate when 25 C threshold is reached The WindObserver II has reverse polarity protection WindObserver II Page 19 Issue 22 Doc No 1390 PS 0004 July 2014 Gill Instruments Ltd 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
27. alogue ID Gf preset D4 Analogue Active if fitted or No analogue fitted Anemometer power supply D5 29 8 voltage Integrity check D6 See Para 10 6 Bench Tests Ex Full Duplex Half Duplex Mode Setting Configuration code Full duplex E1 Half duplex E2 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 F2 8 bits odd parity 1 stop bit F3 If changing to F2 using a Terminal program then when in configuration mode Type F2 and press Enter close the terminal program and open a new one with Even parity settings then type F and press Enter 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 H2 WindObserver II Page 45 Issue 22 Doc No 1390 PS 0004 July 2014 Gill Instruments Ltd Jx Analogue Power up Tests Setting Configuration code Disable analogue power up tests on
28. ates 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 C Schi Ss A CR Stickland Director Date of issue 16 10 2008 Place of issue Gill Instruments Ltd Saltmarsh Park 67 Gosport Street Lymington SO41 9EG ISO 9001 Registered WindObserver II Page 56 Issue 22 Doc No 1390 PS 0004 July 2014
29. dObserver II 9 pair cable Signal names t Colour no TXB 1 green TXA black RXB 2 white RXA black Digital OV 4 blue CONNECTED INTERNALLY Supply V 3 red Supply V black Heater 5 yellow Heater black If unit is fitted with a heater Screen and drain wires Mt PC with RS422 or RS485 input Signal names RXB RXA TXB TXA Signal Ground Ground Earth DC Power supply 9 30V see section 6 6 Heated power supply see section 6 6 WindObserver II Doc No 1390 PS 0004 Page 13 Issue 22 July 2014 Gill Instruments Ltd Networking units Before coupling units into a network gt 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 gt Unit must be set for half duplex mode E2 setting see Para 8 3 gt It must be configured to a tri state polled mode M or M4 See also Section 9 Configuring WindObserver II PC with RS485 9 pair cable card Pair Cable 3 to 4 Signal names Es Colour Twisted Pairs Signal names TXB 1 green RXB 2 white T RXB TXA 1 black RXA 2 black T RXA Digital OV 4 blue Signal Ground CONNECTED INTERNALLY ee a
30. ded that ID s A to F and KMNP are not used as these characters can be present in the data string It is suggested that in polled mode the following sequence is used for every poll for information Ensures that the Sensor is enabled to cover the event that a power down has occurred A Z Appropriate unit designator capitol letter sent to retrieve a line of data Sent to disable poll mode and reduce possibility of erroneous poll generation When polled with the default Mode 14 factory setting the WindObserver set for default 1Hz output will output the last valid 10 minute wind speed and direction average updated every minute along with last valid 1 minute Gust magnitude Notes Non Heat Enabled Units If the unit is powered up and polled before the unit has reached its minimum averaging interval the status code will read 51 Measurement Average Building non heat enabled units only Heat Enabled Units On units where heat is enabled Code 51 will not be output if polled during the measurement average building period therefore allow for this period on power up before taking readings to be fully averaged maximum period of 10 minutes BH NI 243 000 6A M15 236 000 Bn NI 293 000 BH NI 301 000 BH NI 299 600 8A NI 303 000 6A M15 291 000 BA H15 291 000 BA H15 243 000 BA H15 198 000 BA H15 180 000 Bn H15 180 000 03 M 338 000 03 M 304 000 03 H 285 000 02
31. e 5v or OmA 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 OV 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 Ov 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 ON or 4mA Averaging Analogue Outputs are not averaged when using the G command Analogue Outputs are averaged in Modes M14 and M15 but no Gust Output WindObserver II Doc No 1390 PS 0004 Page 40 Issue 22 July 2014 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 w
32. e 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 amp 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 WindObserver II Page 5 Issue 22 Doc No 1390 PS 0004 July 2014 Gill Instruments Ltd 4 SPECIFICATION Measurement Output Parameters Units Averaging Wind Speed Range Accuracy Resolution Offset Direction Range Accuracy Resolution Sonic Temperature Output Range Anemometer Status Starting Threshold Dead Band Wind Direction Power Requirement Anemometer only Heating Optional Digital Output Communication Baud rates Formats Analogue Output Optional Quantity Scale Type V output resistance 4 20mA loading Dimensions Size Weight Materials External Construction Environmental Moisture protection Operating temperature Humidity Precipitation EMC Icing Standards Site Calibration 1 2 4 5 8 10Hz UV Polar NMEA Tunnel m s Knots MPH KPH ft min Flexible 1 3600 seconds or Adjustable Averaging for Road Weather applications
33. eeding 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 amp Options WindObserver II may be configured using WindCom software which is available free of charge from the Gill websit
34. eeeeeeeeeeeecaaeeeeeeeeeneenaaes 47 Vx Vertical Output Padding ccccccecccecceeeeeceeeeccceeeeeeeeeeeecccaeeeeeeeeeeeesennaeeeeees 48 Xx 45 Alignment Offset Inverted Operatton 48 Yx Analogue Output Channel 3 if fitted 2 2 0 eecccceeeeeeeeeeeee ceeeeeeeeeeteetnneeeeeees 48 Zx Analogue Output Scaling if analogue outputs Tied 48 10 MAINTENANCE amp FAULT FINDING 000 cccccceeseeeeeeeeeeeeeeeeeeeeeeeeeeeees 49 WindObserver II Page 3 Issue 22 Doc No 1390 PS 0004 July 2014 Gill Instruments Ltd 10 1 Cleaning and Hangdlmg sue NENNEN EEN EEEEEEREEeeENENE ee KEK EEN 49 1027 RS e EE 49 du E EE le lee EE 49 10 4 Safe MO EE 50 AGED SEET UME eege ee ee 51 10 65 Stats error COMES eege degt 51 10 7 BENCH E 51 Integrity Check Chamber CC 52 Integrity amp Zero Wind Check 52 11 KEEN EEN 53 11 1 Glossary amp Abbreviations EE 53 11 2 EE 54 11 3 Principle of Operation ccseeeeeeeeeeesessessessssessseseessssesesesseseesseeeeeeeeeeeee 55 11 4 Electrical Conformiteit eee is aes Saeed ee eee eet 56 WindObserver II Page 4 Issue 22 Doc No 1390 PS 0004 July 2014 Gill Instruments Ltd 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 proc
35. emometer connector 15 Way 0 0 lll nll ll ll de ee 16 Auxiliary Analogue Outputs 9 Way cccccccceeeeeeeccneeeeceeeeeeeecceeeeeeeeeeeeensneeeeaees 16 DC Supply 4 wax 16 RS 232 Output 9 Way 0 ccc ceeecccecee cece eeeee ceeeee eee eeeeeeccaaeeeeeeeeeees saaaeeeeeeeeeteenaaes 17 RS422 Network In 9 Way kt 17 RS422 Network Out 9 Way Pio 17 6 5 Analogue COMMSCIONS E 18 Analogue Voltage Output Connections 5v or 23fyvi 18 Analogue Connections for 4 20MA output 18 6 6 Power supplies cccccc cece ee eeeeeeeeceeeeeeaaaeaeaeeeeeeeeeeeaaaaaaeeeeeeesesaaaaaeeeeeeeeseeeaaes 19 6 7 Mechanical erellegn eeesgergceetgeegesgeeegreeg sebtecdecdsdevadesduasedededelgausuadbuatouesades 20 ee rel E E ee 20 EE ue TEE 20 Mounting DaCket2 ue e e eege ee ee 20 enn D ER Figure 2b WindObserver II outline dmenslons 23 23 7 USING WITH THE GILL WINDDISPLAY cccceeeeeeeeeeeeeeeeeeeeeeeee 24 Connecting to a Gill Wimdtenlay cee eeeeecceeeeeeeeeeeeeecteeeeeeeeeetees 25 8 MESSAGE FORMATS amp OPTIONS ceeeeeeeeeeeeeeeneeeeeeeeeeeeeeeeeaee 26 8 1 Wind Speed Tomat 26 8 2 euer un 26 LOW WING Spee wesc cdcecscccdedessdiacsvacdedan edeneccuarendaebesivduteadsanansdusuddvassasasabdvanesseesansans 26 NGI IN E 27 8 4 Mee 28 8 5 UNAS E 28 elle E EE 28 8 6 Averaging Digital Data 28 8 6 1 G Command Averaging cccccceeeeeeeeceeceeeeeeeeeccccneeeeeeeeeeeeenceaeeeeeeeete
36. en in the Polled mode an output is only generated when the host system sends a Poll signal to the WindObserver consisting of the WindObserver Unit Identifier that is the relevant letter A Z The output formats are otherwise as described above The commands available in this mode are Description Command WindObserver response WindObserver Unit Identifier eg Z Wind speed output generated Enable Polled mode None Disable Polled mode None Request WindObserver Unit amp E CE Z as configured Identifier Enter Configuration mode lt N gt CONFIGURATION MODE Where lt N gt is the unit identifier if used in a multi drop system then it is recommended that ID s A to F and KMNP are not used as these characters can be present in the data string It is suggested that in polled mode the following sequence is used for every poll for information Ensures that the Sensor is enabled to cover the event that a power down has occurred A Z Appropriate unit designator sent to retrieve a line of data Sent to disable poll mode and reduce possibility of erroneous poll generation When in polled mode the system will respond to the data command within 30mS with the last valid data sample as calculated by the Output rate P Mode Setting If the unit is powered down after use or upon switch on then allow 3 seconds from switch on before sending poll commands WindObserver II Page 34 Issue 22 Doc No 1390
37. erver II Doc No 1390 PS 0004 Page 46 Issue 22 July 2014 Gill Instruments Ltd Ox ASCII Output Format Output String Padding Setting Configuration code Comma Separated Variable CSV 01 Fixed Field 02 Example data strings POLAR NMEA CSV data changing to error status code CSV data changing to error status code condition condition A 235 000 77 M 00 0A SIIMWV 191 R 000 55 M A 19 7 A M 04 24 SUMWV R M V 29 Fixed Field data changing to error status code condition Fixed Field data changing to error status code condition A 266 000 73 M 00 08 SIIMWV 191 R 000 55 M A 19 7 A 999 999 99 M 04 E 0A SUMWV 999 R 999 99 M V 07 Px Output Rate Outputs per second 1 2 4 5 8 10 Configuration code Pi P3 P2 P4 P5 P6 Q Measurement Mode See Section 9 2 RWASHORT XX Short term number Where XX 10 to 60 associated with Mode 14 and Mode 15 averaging RWALONG XX Long term number Where XX 1 to 10 associated with Mode 14 and Mode 15 averaging Tx Analogue Output Voltage or Current settings if fitted Setting Configuration code Voltage 0 to 5V T1 Voltage 2 5V to 2 5V T2
38. es 28 7 6 2 Modes 14 and 15 Road Weather Averaging WA 29 WindObserver II Page 2 Issue 22 Doc No 1390 PS 0004 July 2014 Gill Instruments Ltd Oil e e EEN 32 Speed of Sound SOS and Temperature sssseieeeeeeseeeerreeeetererrrrretesrerrrrnneseene 32 Heating I Hecht tte 32 ADV e 32 Vertical Output Padding A anaa 32 8 8 ASCII message format UV Polar and Tunnel 33 GEIER EA UE 33 ASCII Polar format s ict tiisaiiscasecedeteiaiadessdecedesedadalaaddenedebttaandes E AAAA AA OAA 34 ASCII E WAR He ET E 34 ASCII format Tunnel Mode 0 cccecccceeeeceeeeee cecccnaeeeeeeeeeeeeccaeeeeeeees snseesaeeeeees 35 8 9 Binary message format UV Polar and Tunnel 36 Binary WV format EE aaa ete eee 36 Binary Polar formate maannainen nati eatand sans EE 36 Binary Tunnel format 37 8 10 NMEA Kerrget0degegee Seed ENEE Ee on ee Meee EE 38 8 11 Averaging Format Modes 14 and 18 39 8 12 Analogue outputs and Options cccccccccsceeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeaaaeeeeneeeeees 40 QUTPUE ne EE A0 Cannel UDS vaccinii de 40 SUAS Re eal diet at Ne AA tN UN aN th cel Nd tS ONS Calon a aN can a al Nal 40 BR le EE EEN 40 R elt EE 40 Ge UE 40 AV OT AGIIIG DEE EE EE E Aiea Neils 40 Polar mode direction wraparound cece ceeeeeeeeeeeeeeeeaaeeeeeeeeeeeeeeaaa 41 Low Wind SpeGedS EE 41 9 CONFIGURING ge csscssisasscstucictantscactessdniscatecaieasecicicatieanrsstdvictantueaieatennde 42 9 1 Configuring using AHyper
39. iguration code Status Y1 Temperature Y2 Zx Analogue Output Scaling if analogue outputs fitted Setting 10 20 30 40 50 60 70 Configuration code Ki 22 3 GA Z5 Ed Z7 WindObserver II Page 48 Issue 22 Doc No 1390 PS 0004 July 2014 Gill Instruments Ltd 10 MAINTENANCE amp 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 gt All cables and connectors are checked for continuity bad contacts corrosion etc gt A bench test is carried out as described in Section 10 6 gt Contact your supplier for advice if failure persists 10 3 Fault finding
40. ind 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 Wind Voltage output V Current output mA 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 Channel 2 Channel 3 Wind Speed Wind Direction Status Wind Speed Variable 4 to 20mA Variable 4 to 20mA 4mA Greater Than value depends on Value depends on Unit functioning 0 05m s Output scaling Output scaling correctly Wind Speed Variable close to Outputs last known Less Than 4mA good valid current 4mA 0 05m s reading MA g Unit functioning increases above correctly 0 05m s Any Wind Speed Fixed 4mA until Outputs last known with Failure fault clears good
41. indObserver II Page 20 Issue 22 Doc No 1390 PS 0004 July 2014 Gill Instruments Ltd Figure 1 Suggested mounting bracket and Earthing grounding arrangements Suggested Earth Connection 2 Crimp Terminals Washers 6mm Wire De thick or similar plate size Customer Supply Recommend gt 3mm wall thickness to drill and tap Use Stainless Steel bolts and washers If pole is not of similar material protect connection with grease or paint etc to prevent Optional strengthening web corrosion or strut to stiffen strucuture Note Similar earthing arrangements must be provided at the base of the pipe to ensure the Anemometer is correctly earthed 113 dia or similar pipe size Customer Supply Scale 1 2 4 x holes or slots to 28mm dia hole to accept M5 screws clear cable gland WindObserver II Page 21 Issue 22 Doc No 1390 PS 0004 July 2014 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 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 Bake 4 Holes opp Material St Steel 316 Mounting Ri
42. lerminal cccne enti ieee 42 9 2 Entering Configuration mode s ssessseessseeennerertesssetrnrrrnnttssrrrnrrrnnnrssrrrnrrnn nnt 42 9 3 Returning to Measurement mode vekkeNEeENEEKEeEKEEeE EK EeE NEEN EK EeEkEK sce 42 9 4 Checking the configuration cscvexiccavoeise ate St eebe Ee Ak Sloe eels 43 9 5 Changing Settings oei edicts chats aae aae EAE aa E aia 43 9 6 age ER Le Le GE 44 Ax Speed of Sound SOS and Temperature esssseeeeeseseeeirrreeresrerrrrrrssseerrne 44 Ke WEE 44 Cx Analogue Output Polar Mode Direction Wraparound ates 44 Dx Diagnostic and Configuration Command see also Section 10 6 0 45 Ex Full Duplex Half Duplex Mode nnnnnnnnnnnantrtrrrtterrrrrtttrtrrrrnrrrtnnrnnnnnnnnnn reena 45 Fx Data and Parity Options siniseen iaaiiai 45 Gx to Gxxxx Averaging Digital Outputs on 45 Hx Heating ified sa ccticcaniateadeeccstetadsdaztacecentaaabigns ladddesedand inighededectienttanaiactdens 45 JX Analogue Power Up Tests 46 KX NMEA Settings ra anceio namane aaae aaa a EN aa a Aaa aAA 46 Lx ASCII Message Termminaior 46 Mx to Mxx Message Format nnn nn nn nn nn i tinier 46 Nx Node e 46 Ox ASCII Output Format Output String Padding ccccceeceeesseeteeeeeeeeeees 47 Px Ouiput Rate eegene ge en aise a 47 Q Measurement Mode 47 Tx Analogue Output Voltage or Current settings if Ttted 47 Ux Digital Output Units 22 2 2 c cece eens cece eee e eee eeeecaee
43. nd Ground Earth rain wires DC Power y Se 3 ai supply 9 30V uppity V a see section 6 6 Heater 5 yellow Hees SH Heater black supp y see section 6 6 To Next Unit e Note Each unit in the network will require its own power supplies Please refer to section 8 3 WindObserver II Page 14 Issue 22 Doc No 1390 PS 0004 July 2014 Gill Instruments Ltd 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 RXB TXA Pair Black 9 RXA RXB Pair 2 White 3 TXB RXA Pair 2 Black 10 TXA Signal Ground Digital Ov Pair 4 Blue 4 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 l Externally accessible 315mA T for 115 230v operation 2 Internally accessible 500mA T AUX 500mA T ANEM WindObserver II Page 15 Issue 22 Doc No 1390 PS 0004 July 201
44. ned if enabled Value Status 0 OK 60 Heating enabled and OK Any other value Warning or fault condition see Section 10 5 Wind speed Start of string Wind direction Units 0x81 0x81 006 04 265 345 01 022 36001 Da Speed of sound Temperature Status Where Wind direction Wind speed All other parameters In degrees relative to N DDD In increments of 0 01 units E MMM MM See Section 8 9 Binary UV format WindObserver II Doc No 1390 PS 0004 Page 36 Issue 22 July 2014 Gill Instruments Ltd Binary Tunnel format U axis wind speed Start of string Direction Units ss Ee 0x81 0x81 000 04 1 001 Be Status U axis Wind speed Direction along U axis Other parameters In increments of 0 01 units E MMM MM Value Polarity 1 U 0 U See Section 8 9 Binary UV format WindObserver II Doc No 1390 PS 0004 Page 37 Issue 22 July 2014 Gill Instruments Ltd 8 10 NMEA Format Instrument Wind direction Wind speed Units Identifier Checksum Wi A Delimiter IIMWY 120 R 002 10 M A CC TI Start of string Instrument Wind Status Check type measurement sum Where Wind direction In degrees relative to N DDD Wind speed In increments of 0 01 units 4 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 II
45. ng if required see 5 2 Min Thickness 3 0mm Red Dot Scale 1 4 Mounting Ring Scale 1 1 See fig 4 on page 44 for u v definition WindObserver II Page 22 Issue 22 Doc No 1390 PS 0004 July 2014 Gill Instruments Ltd Figure 2b WindObserver II outline dimensions 212 5mm 212 5mm 381mm 277mm 2 metre cable Scale 1 4 fe 100mm long tails Wind Observer II 2 Axis Anemometer Overall Dimensions WindObserver II Page 23 Issue 22 July 2014 Doc No 1390 PS 0004 Gill Instruments Ltd 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 Re configuring 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 GILL INSTRUMENTS The WindDisplay has been designed to provide anemometer po
46. ng 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 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 5 Measurement average Data valid but warns that average period not reached building when averaging used non heat enabled units only gg Hleating current tipped ii data still output or electronic failure Se este etot ODSA 57d datasull output circuit 65 Heating element open Valid data still output Heater Element or Heater circuit PSU has dropped out failed V NMEA data Void Invalid data output 10 7 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 cha
47. nging wind direction and to check that both axes are functioning Note that this is 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 Issue 22 July 2014 WindObserver II Doc No 1390 PS 0004 Page 51 Gill Instruments Ltd Integrity Check Chamber ICC The software to perform the Integrity Check IC is incorporated in the latest WindObserver II 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 WindObserverlI I 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 amp 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 WindObserver II is set in factory default mode For Factory default settings see section 9 3 2 Enter Measurement Mode and Reco
48. om 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 El F1 G0000 H1 J1 K1 L1 M2 NA O1 P1 T1 UI V1 SINT Zi How to change these settings is explained in the following sections To return to Measurement mode Type Q and press ENTER 9 5 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 M 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 WindObserver II Page 43 Issue 22 Doc No 1390 PS 0004 July 2014 Gill Instruments Ltd 9 6 Configuration Settings Ax Speed of Sound SOS and Temperature Setting Configuration code Disable both A0 Report SOS A1 Report Sonic temperature A2 Report SOS and Sonic temperature A3 Note that neither of these parameters is available in Tunnel or NMEA format
49. on When installing the unit degrease the unit and hold with lint free gloves to reduce the build up of deposits WindObserver II Page 9 Issue 22 Doc No 1390 PS 0004 July 2014 Gill Instruments Ltd 6 2 Bench system test Note Prior to physically mounting the WindObserver IT 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 Batt electronics ref 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
50. onal 5 2 Installation requirements Host system One of the following gt PC with an internal or external interface compatible with the RS422 output from the WindObserver II gt Gill WindDisplay gt 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 gt Networking Multiple WindObserver II units can be networked Software One of the following gt 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 gt HyperTerminal for Windows 9x and later or Terminal Windows 3 n normally already installed on a PC gt 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 WindObserver II Page 7 Issue 22 Doc No 1390 PS 0004 July 2014 Gill Instruments Ltd Mounting Bracket A mounting bracket is required not provided which will attach to the WindObserver II via the four tapped holes in
51. ot affected by other equipment operating locally which may not conform to current standards e g radio radar transmitters boat engines generators etc Guidelines gt Avoid mounting in the plane of any radar scanner a vertical separation of at least 2m should be achieved gt Radio transmitting antennas the following minimum separations all round are suggested e VHF IMM Im e MF HF 5m e Satcom 5m avoid likely lines of sight gt Ensure the product is correctly earthed in accordance with this manual gt 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 gt Earth loops should not be created earth the system in accordance with the installation guidelines See Section 6 4 gt 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 gt 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 obstructi
52. pared 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 BASIC TIME OF FLIGHT THEORY L gt T a TRANSDUCER TRANSDUCER Co CONTROL SYSTEM L Vi C V And Ti L C V Therefore E Lin ER IA L Distance between transducer faces C Speed of Sound V Velocity T Transit time of Ultrasound T Transit time of Ultrasound WindObserver II Page 55 Issue 22 Doc No 1390 PS 0004 July 2014 Gill Instruments Ltd 11 4 Electrical Conformity d ee IA EC DECLARATION OF CONFORMITY ACCORDING L e TO COUNCIL DIRECTIVE 89 336 EEC INSTRUMENTS 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 Outputs Variant Manufactured by Gill Instruments Ltd Saltmarsh Park 67 Gosport Street Lymington SO41 9EG to which this declaration rel
53. rd 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 I 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 WindObserver II Page 52 Issue 22 Doc No 1390 PS 0004 July 2014 Gill Instruments Ltd 11 APPENDICES 11 1 Glossary amp 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 Up InPut IP66 Protection Classification KPH Kilometres per Hour LF Line Feed m s Metres per second MAG MAGnitude scalar reference to wind speed MAX MA
54. s BX Baud Rate Setting Configuration code 2400 B1 4800 B2 9600 B3 19200 B4 38400 B5 1200 B6 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 O 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 0 360 C2 WindObserver II Page 44 Issue 22 Doc No 1390 PS 0004 July 2014 Gill Instruments Ltd Dx Diagnostic and Configuration Command see also Section 10 6 Each of these commands causes a response from the WindObserver II Command Item Son Typical response Type and serial No D1 901001 where E Unheated unit F Heated unit Software version D2 5 00 Current configuration Unit configuration D3 AO B3 C1 El F1 G0000 H1 J1 K1 L1 M2 NA O1 P1 T1 U1 V1 X1 Y1Z1 An
55. st is the maximum of the gust value over the RWASHORT period default 60 seconds in P1 The max gust value is reset to zero at the end of each RWASHORT period Mode 15 Averaging Data in Continuous mode Averaged Digital Data Output comprises of lt Start of String gt Node Mode Averaged Direction Averaged Magnitude units Maximum Gust Direction Maximum Gust Magnitude Status lt End of String gt checksum e g Dn M15 293 000 03 M 338 000 05 51 47 status code 51 shows measurement average building non heat enabled units only BA H15 198 000 O4 M 088 000 39 00 4B status code 00 shows measurement average building period complete and normal operation non heat enabled units only Principle set up commands associated with this averaging mode are Px Measurement Rate P1 to P6 this command sets the underlying measurement rate from 1Hz to 10Hz RWASHORT xx Short Term Number where xx is a number from 10 to 60 RWALONG xx Long Term Number where xx is a number from 1 to 10 The Averaged Data Output period in seconds is RWASHORT Number Measurement Rate P Setting Hz value Therefore with the RWASHORT number set for 60 default and P command set for 1Hz P1 default the unit will output a rolling averaged reading every 60 seconds The Averaged Direction and Magnitude reading is based on RWALONG Number Averaged Data Output period WindObserver II Page 29 Issue 22
56. switch on JO Enable single analogue power up test on Switch on J1 Enable continual cycling of analogue power up tests J2 Disable continual cycling of analogue power up tests J3 Analogue Power up tests cycle Analogue Output Voltage connections between Ov 1 25v 2 5v 3 75v and 5v Analogue Output Current connections between 0mA 5mA 10mA 15mA and 20mA Kx NMEA Settings Setting Configuration code NMEA string IIMWV K1 NMEA string WIMWV K2 Lx ASCII Message Terminator Setting Configuration code CR LF L1 LF L2 Mx to Mxx Message Format Output format Configuration code ASCII UV Continuous M1 ASCII Polar Continuous M2 ASCII UV Polled tri state M3 ASCII Polar Polled tri state M4 NMEA Continuous M5 Binary Tunnel Continuous M6 Binary UV Continuous M7 Binary Polar Continuous M8 ASCII Tunnel Continuous M12 ASCII Tunnel Polled tri state M13 Tf 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 lt A gt 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 WindObs
57. tions 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 OV or digital OV 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_ RSA Pair 3 red Supply V black Supply V Pair 4 blue Digital 0v black Analogue Ov Pair 5 yellow Heater black Heater Pair 6 brown Analogue Ch 3 output 3 black Analogue Ov 2 Pair 7 orange Not used isolate 7 black Not used isolate 3 Pair 8 white Analogue Ch 1 output red Analogue Ch 2 output 3 Pair 9 green Not used isolate 7 red Not used isolate 3 Screens Chassis ground land Note may not be functional check model number and options fitted 2 NOTE Analogue connections change on units from serial number 901001 Earthing or grounding To ensure correct operation and for maximum protection against lightning the anemometer MUST be correctly earthed grounded via its mountings Inadequate
58. wer 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 Units set for Averaging Mode 15 will not be compatible with the WindDisplay input requirements WindObserver II Page 24 Issue 22 Doc No 1390 PS 0004 July 2014 Gill Instruments Ltd 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 S WindDisplay 9 pair cable S Pair Cable 2 or 3 Signal Terminal Signal names Colour s no twisted pairs names nos TXB 1 green C oo EEN TXD RS422 TXA black TXD RS422 CONNECTED INTERNALLY SE Ground Earth drain wires Supply V r eeh i Supply V black O 1 Heater yellow Hene powe ars e eed supply i See Section 6 6 If fitted WindObserver II Page 25 Issue 22 Doc No 1390 PS 0004 July 2014 Gill Instruments Ltd 8 MESSAGE FORMATS amp OPTIONS On first applying power

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