Gill Instruments 1561-PK-020, User Manual

Page 1: ...RA with Firmware 2329 701 and higher 1590 PK 050 WindMaster Pipe Mount with Firmware 2329 701 and higher Document Number 1561 PS 0001 Issue 11 Gill Instruments Limited Saltmarsh Park 67 Gosport Street Lymington Hampshire SO41 9EG UK Tel 44 1590 613500 Fax 44 1590 613555 Email anem gillinstruments com Website www gillinstruments com WindMaster WindMaster Pro WindMaster Pipe Mount WindMaster RA ...

Page 2: ...ount 1590 PK 050 with Pipe Mount Adaptor removed 15 31 Way Connector Cable Assembly 16 Connector Pin Conductor positions 17 6 6 2 WindMaster 1590 PK 050 Pipe Mount Box Connection Details and WindMaster and WindMaster Pro Pipe Mount Box Connection Details Spared Item 1590 PK 048 19 6 7 Connection to a PC using RS 232 22 6 8 Connection to a PC using RS 422 22 6 9 Connection to a PC via a Power and C...

Page 3: ...Mode Notes Default 39 Syncpoll 1 Mode Notes 40 7 4 Mode 4 ASCII Polar Polled 41 7 5 Mode 7 Binary Polar Short 41 7 6 Mode 8 Binary UVW Short 41 7 7 Mode 9 Binary Polar Long 42 7 8 Mode 10 Binary UVW Long 42 8 ANALOGUE INPUTS 43 8 1 Analogue Inputs 43 8 2 PRT input 43 8 3 Input Rates 43 9 ANALOGUE OUTPUTS 44 9 1 Output allocations 44 9 2 Output types 44 9 3 Voltage outputs 44 9 4 Current outputs 44...

Page 4: ...__________________________________________________________________ 4 12 1 Bench test 62 12 2 Head Alignment Test 62 12 3 Calibration 65 Standard calibration 65 Certified calibration 65 13 APPENDICES 66 13 1 Guarantee 66 13 2 Improvement Key Notes 66 13 3 Nakai 2012 Correction Information 68 13 4 Electrical Conformity 69 ...

Page 5: ...tions The term WindMaster is used in this manual as a general term for both the WindMaster and the WindMaster Pro they are robust three axis anemometers with no moving parts The units of wind speed output rate and formats are all user selectable The WindMaster constructed in aluminium and carbon fibre can perform measurements in wind speeds up to 45 m s The WindMaster Pro constructed from marine g...

Page 6: ...d between each of the other upper and lower transducers As Figure 1 shows the air velocity along the axis between each pair of transducers can then be calculated from the times of flight on each axis This calculation is independent of factors such as temperature From the three axis velocities the wind speed is calculated as either signed U V and W or as Polar and W It can be seen from Figure 1 tha...

Page 7: ... degrees from 0 to 359 with respect to the Reference spar which is normally aligned to North U V and W axes definition U is defined as towards the direction in line with the north spar as indicated in the diagram V is defined as towards the direction of 90 anti clockwise from N the Reference spar W is defined as vertically up the mounting shaft Note when the unit is configured for the X2 setting t...

Page 8: ...vious measurement L U Indicates lower to upper transducer firing U L Indicates upper to lower transducer firing Analogue inputs and PRT are sampled synchronously at rates described in Para 8 3 Syncpoll 1 In this mode when a Poll command is received it will trigger a single 50mS or 31 25mS ultrasonic measurement as illustrated in the table above and at the same time will trigger a Wind measurement ...

Page 9: ...289 Direction Range 0 359 9 0 359 9 Resolution 10 or 0 10 10 or 0 10 Accuracy 12 m s Standard 2 2 Accuracy 12 m s to special order 0 5 0 5 Speed of Sound Range 300 370 m s 300 370 m s Resolution 0 01 m s 0 01 m s Accuracy 0 5 20 C 0 5 20 C Power requirement 9 30 V dc 55 mA 12 V dc excluding analogue outputs 9 30 V dc 55 mA 12 V dc excluding analogue outputs Digital output Protocol ASCII and Binary...

Page 10: ... 952mm x 240mm 1590 PK 050 750mm x 240mm 1561 PK 020 W Environmental IP65 IP65 Operating temperature 40 C to 70 C 40 C to 70 C Humidity 5 to 100 5 to 100 Precipitation Operation up to 300 mm hour Operation up to 300 mm hour EMC Emissions BS EN 61000 6 3 Immunity BS EN 61000 6 2 Emissions BS EN 61000 6 3 Immunity BS EN 61000 6 2 WindMaster WindMaster Pro Accuracy specification applies for wind spee...

Page 11: ...le free at www gillinstruments com and it provides an interface to view and log WindMaster Pro data 5 3 Ordering Options Notes These options must be specified when ordering the WindMaster or WindMaster Pro Option WindMaster WindMaster RA WindMaster Pro Software Serial Number Prefix Identification Improved W Speed and Improved 2 C Sonic Temperature Performance See Appendix A 1590 PK 020 W 1590 PK 1...

Page 12: ...ements PC requirement WIND and WINDVIEW software will operate with any PC with Windows software up to at least Windows 8 versions The PC must be fitted with a suitable interface to match the chosen communication format RS232 RS422 or RS485 point to point Alternatively a Gill Power Supply and Interface PCI may be used to convert RS422 485 output to RS232 Other equipment Analogue inputs outputs must...

Page 13: ...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 If the sensor is to be mounted on a mast boom part way up a tower or mast then the boom should be at least twice as long as the minimum diameter or diagonal of the tower The boom should be po...

Page 14: ...232 RS422 or RS485 the baud rate and to a lesser extent on the cable type and the local electrical noise level Communication format Baud rate Max cable length RS232 9600 6 5 m 20 ft or if using Cat 5 cable see manufacturers recommendations RS422 485 9600 1 km 3200 ft Analogue outputs voltage N A 6 5 m 20 ft Analogue outputs current N A Resistance dependent max 300 Ω The above table shows the typic...

Page 15: ...0 PK 130 W WindMaster Pro 1561 PK 020 W WindMaster Pipe Mount 1590 PK 050 with Pipe Mount Adaptor removed 31 Way Base Connector Function Remarks 31 way Connector Pin No TXA Anemometer Transmit 1 TXB Anemometer Transmit 2 RXB Anemometer Receive 5 RXA Anemometer Receive 6 Communications Mode Polarity sets Comms mode Connect to V for RS232 Connect to 0v for RS422 RS485 4 Power V 9 30 V 11 Power 0V Us...

Page 16: ... PK 050 provided with the WindMaster not Pipe Mount units Strip the cable and solder the contact pins to the cores please note that the connector supplies the correct strain relief for cables with an outside diameter of 6 12mm Put the parts on the cable in the order as shown below Whilst squeezing the red retainers in the direction of ARROW A pull in the direction of ARROW B A B Your connector sho...

Page 17: ... by simply pulling it out Please note there will be some resistance Continue to insert all of the contacts you require in accordance with the diagram below Connector Pin Conductor positions Supplied WindMaster Connector WindMaster Base socket The drawing above shows the pin positions of the wire conductors together with position of conductor screens This information must be used in conjunction wit...

Page 18: ...r into place NB The retainer can only be pushed back into place if the contacts are fully engaged Fit the connector to the WindMaster so that you can now finish assembling the connector Screw the back shell onto the connector until it is fully in place Please note that the final rotations can be slightly stiff Screw the cable clamp into the back shell Now screw the cable clamping nut into place Th...

Page 19: ...Out 4 wired connection Analogue Out 3 No Connection Analogue Out 3 wired connection Analogue Out 2 No Connection Analogue Out 2 wired connection Analogue Out 1 No Connection Analogue Out 1 wired connection J3 Analogue In 1 Analogue In 1 Analogue Ground Analogue Ground Analogue In 2 Analogue In 2 Analogue Ground Analogue Ground Analogue In 3 Analogue In 3 Analogue Ground Analogue Ground Analogue In...

Page 20: ...een 8mm to 13mm WindMaster 31 Way connector cable screen connected to a crimp terminal screwed to the hexagonal pillar User equipment The cable screen s from user equipment are wired to this Pillar using M4 screw washers and terminal fixings supplied in the installation kit 1590 PK 045 or 1590 PK 046 J4 Comms Link Positions Solid line is default COM to CM Move to COM and V for RS232 only if not us...

Page 21: ...__________________________________________________________________________________________________________ 21 31 Way Connector to PCB Wiring Loom Details Note WindMaster Part 1590 PK 050 the WindMaster 31 way connector wires 8 9 14 14 19 20 25 and 26 are not fitted 31 Way Connector ...

Page 22: ...nal comms Ground 5 Comms Mode link to Power V J4 Move Link to between COM to V 4 Cable Screen Use the most convenient pin Screen Ground 3 7 21 30 or 31 Screen and Drain wires Chassis ground N A Power ve J1 PWR V 11 DC Power Power 0v J1 PWR 0v 12 Supply 9 30v 6 8 Connection to a PC using RS 422 Notes 1 The PC must be fitted with an internal or external RS422 to RS232 USB converter 2 On Pipe Mount b...

Page 23: ...use in a protected environment and provides interfacing to a single anemometer RS232 and RS422 ports are provided The PCI is not intended for outdoor use PCI Electrical Power Requirements 1 100Vac 120Vac 10VA from a mains supply for the 115V switch position 2 200Vac 250Vac 10VA from a mains supply for the 230V switch position 3 9 30Vdc 55mA from an external low voltage supply for the anemometer ex...

Page 24: ... RS422_RXA Pin Designation 5 Signal ground 1 Interface Box V 6 RS422_TXA 2 Interface Box V 7 RS422_TXB 3 Anemometer Only V 8 RS422_RXB 4 Anemometer Only V 9 Earth External D C Supply Amphenol C91A Screw Lock 4 Way Socket e g T3301 001 View looking at pins PCIA Box 1189 PK 020 WindMaster Analogue Output Connections If a PCIA box is available then a WindMaster with Analogue Output option connections...

Page 25: ...WindMaster and WindMaster Pro 1561 PS 0001 Issue 11 February 2017 ________________________________________________________________________________________________________________________ 25 ...

Page 26: ... baud rate setting may need to be adjusted increased to 38400 or above depending on the poll rate 8 The Master unit can be any suitable control device fitted with a RS485 interface card such as a PC or Data logger For best operation then the units should be connected directly to an RS485 interface card use of some converters may degrade operation 9 Analogue Outputs are also simultaneously availabl...

Page 27: ...ded the sealing gasket is fitted to the flange and provision is made to seal the M4 base mounting nuts i e with a rubber boot to prevent water ingress It is particularly important for the WindMaster RA to have the gasket fitted and use RTV sealant around the base when unit is connected up so as to prevent water penetration through cables connectors or base screws etc Care must also be taken to ens...

Page 28: ... Issue 11 February 2017 ________________________________________________________________________________________________________________________ 28 Part 1590 PK 130 W North Marker and WindMaster RA Dimensions North Spar Marker Symbol and Notch ...

Page 29: ...he North Spar and Alignment marking is illustrated in Figure 3 on the previous page Corrosion Careful note should be taken of the possibility of galvanic corrosion by incorrect mounting It is vital that only stainless steel fixings are used and that the instrument is insulated from the mounting surface with the rubber gasket This will ensure that the anemometer will provide long service under extr...

Page 30: ...nding point with a minimum of 6mm copper wire Mounting WindMaster 1590 PK 020 W options and WindMaster Pro 1561 PK 020 W options Cable strain relief Fit strain relief when installing such that the weight of the cable is supported and does not put a strain on the connector Flange mounting Mount the unit to a suitable surface using the flange gasket and the M6 nuts bolts and washers provided ensurin...

Page 31: ...the 31 way Clipper plug through the tube Connect the plug by twisting it whilst pushing it gently into the socket on the WindMaster When it locates twist the outer sleeve clockwise to connect and lock the plug Fix the pipe mount adaptor to the pipe using the 2 off M8 stainless steel screws provided Note the customer MUST fit appropriate strain relief to the cable this is particularly important wit...

Page 32: ...e illustration Align the unit North Spar N marking to North as required see Page 27 Figure 3 and then tighten the 3 set screws in place Tighten and torque the two Jubilee clips in turn evenly to a figure of 5 Newton Metres or 45 Pounds Inch Notes The M20 Cable gland from the connection box is designed to accept cables with an outer diameter between 8mm to 13mm Connect the external cable screen s t...

Page 33: ...to the pipe section of the mount Slide on the two supplied 35 45mm Jubilee Clips over the two rubber strips see above illustration Slot the WindMaster into position on to the mounting pipe engage to depth of 90mm Fit the 3 off M5 set screws into three equidistant holes in the pipe mount see above illustration Align the unit North Spar N marking to North as required see Page 27 Figure 3 and then ti...

Page 34: ...the supplied M4 parts illustrated above Appropriate strain relief MUST be fitted to the cable connected through the M20 cable gland this is particularly important with pipe mounting The weight of the Pipe Mount is approximately 1 12kg Grounding Earthing For protection against lightning the WindMaster MUST be earthed via its mountings The unit MUST be connected to an appropriate grounding point wit...

Page 35: ...f Sound On Sonic Temp On Analogue inputs On PRT On In this mode the wind speed outputs are given as signed i e positive or negative speeds along the U axis V axis and the W vertical axis Format for software configuring is STX ID UUU UU VVV VV WWW WW U CCC CC TTT TT SS 1 1111 2 2222 3 3333 4 4444 PP PPC ETX CC CR LF Where STX Start of string character ASCII value 2 ID Anemometer Identification A Z ...

Page 36: ...played in degrees C Status This indicates either correct operation Code 00 or status code See 11 4 for explanation of codes Analogue Inputs Unit order option If enabled the four Analogue inputs are an order option see Para 8 1 PRT Unit order option If enabled the Platinum Resistance Thermometer input is an order option see Para 8 2 Checksum This enables the host system to check that the data has b...

Page 37: ...7 2 Mode 2 ASCII Polar Continuous Default Output Parameters in red a Mode 2 Normal Resolution Shown J1 ASCII Polar W Continuous Speed of Sound On Sonic Temp On Analogue inputs On PRT On Format for software configuring is STX ID DDD MMM MM WWW WW U CCC CC TTT TT SS 1 1111 2 2222 3 3333 4 4444 PP PPC ETX CC CR LF Where STX Start of string character ASCII value 2 ID Anemometer Identification A Z DDD ...

Page 38: ...ogue input 1 in volts 2 2222 Analogue input 2 in volts 3 3333 Analogue input 3 in volts 4 4444 Analogue input 4 in volts PP PPC PRT temperature in degrees C e g 23 13deg C output as 23 13C in the string ETX End of string character ASCII value 3 CC Checksum of all Characters between STX and ETX HEX byte CR LF Carriage Return and Line Feed 7 3 Mode 3 ASCII UVW Polled Mode 3 Normal Resolution Shown A...

Page 39: ...e possibility of erroneous poll generation If the unit is powered down after use or upon switch on then allow 5 seconds from switch on before sending poll commands When in polled mode the unit will respond to a poll data command within 30mS of receiving the command Maximum poll rate for all modes is 20Hz Syncpoll 0 Mode Notes Default Default Syncpoll 0 is set up as follows Open Wind Software Type ...

Page 40: ...oll command will trigger a single 50mS or 31 25mS ultrasonic measurement and at the same time will trigger a Wind measurement output resultant from the previous polled measurement The minimum Poll command rate is 20Hz Analogue inputs are not supported in Syncpoll 1 mode RS485 Networking Examples Use of a PC with integrated RS485 PCI Card In tests four WM WMP were connected to a PC PCI card and usi...

Page 41: ...Analogue input 3 in volts 4 4444 Analogue input 4 in volts PP PPC PRT temperature in degrees C e g 23 13deg C output as 23 13C in the string ETX End of string character ASCII value 3 CC Checksum of all Characters between STX and ETX HEX byte CR LF Carriage Return and Line Feed See also Polled Notes above 7 5 Mode 7 Binary Polar Short B1 B1 STATUS DIR MAG W SOS CHECKSUM B1 B1 STATUS Status data Cod...

Page 42: ...iption Byte 0xB4 0xB4 Start message identifier HEX B4 decimal 180 1 2 Sta Status data Information only on low byte Codes 00 to 0B 3 4 high byte always zero Wc1 U axis wind velocity 16 bit signed integer 5 6 Wc2 V axis wind velocity 16 bit signed integer 7 8 Wc3 W axis wind velocity 16 bit signed integer 9 10 SoS Speed of Sound in 0 01ms 16 bit signed integer 11 12 A1 Analogue input 1 16 bit signed...

Page 43: ...e not supported in Syncpoll 1 mode 8 1 Analogue Inputs The input range is fixed at 5V For pin connections see 6 6 1 and 6 6 2 Connections The WindMaster can be configured for 4 single analogue inputs 31 way connector Pins 27 28 29 and 24 or on Pipe mount box A IN 1 A IN 2 A IN 3 and A IN 4 or 2 differential analogue inputs 31 way connector Input 1 Pins 27 and 28 and Input 2 Pins 29 and 24 or Pipe ...

Page 44: ...e of the following U V W Polar Angle Horizontal Direction Speed of Sound Sonic Temperature Status Polar magnitude Horizontal Wind Speed 9 2 Output types They are user configurable as Voltage 0V to 5V or 2 5V to 2 5V or 5V to 5V Current 4 20 mA or 0 20mA 9 3 Voltage outputs The output impedance is less than 1 ohm To prevent inaccuracies the outputs should be connected to an input with an impedance ...

Page 45: ...Scaling for Speed of Sound and Sonic Temperature Instrument Software version 2329 110 onwards is as follows Sonic Temp Deg C 40 30 20 10 0 10 20 30 40 50 60 70 SOS m s 300 00 306 36 312 73 319 09 325 45 331 82 338 18 344 55 350 91 357 27 363 64 370 00 5V 5 00 4 09 3 18 2 27 1 36 0 45 0 45 1 36 2 27 3 18 4 09 5 00 0 5V 0 00 0 45 0 91 1 36 1 82 2 27 2 73 3 18 3 64 4 09 4 55 5 00 2 5 2 50 2 05 1 59 1...

Page 46: ... rate and message type may be unsupported 10 1 Configuring with Gill WIND software Download the WIND software from the Gill website www gillinstruments com Assuming the WindMaster has been correctly connected to the PC and a Power Supply the opening menu will show the WindMaster in Measurement mode A short Start message will be displayed followed by continuous wind information displayed the defaul...

Page 47: ...________________________________________________ 47 The unit is set to factory default 1 Hz output and in Polar mode A typical message format after Synchronising Comms is shown below If you need to review your instrument settings click Tools and Report config in the tool bar When selected a similar message to that below will be displayed ...

Page 48: ...________________________________________________________________ 48 To change the WindMaster configuration click Tools and Wizard in the tool bar Typical screens are shown below The Customer is able to adjust all the settings as required taking into account the options selected at time of order e g Analogue inputs and PRT ...

Page 49: ...____________________________________________________________________ 49 When the changes are complete the Wizard will display a confirmation of the changes with all changes shown in red this may be printed as a hard copy if required Click next and the WindMaster will be re configured and will return to measurement mode ...

Page 50: ...ning menu will show the WindMaster in Measurement mode and scroll continuous wind information data Entering Configuration mode From Continuous mode From Polled mode N where N is the Unit identifier a letter between A and Z The WindMaster responds with a CONFIGURATION MODE message stops reporting wind measurements and waits for a command as detailed below Returning to Measurement mode Q ENTER The W...

Page 51: ...OMMAND USER A SOS Sonic Temp Output B Baud rate C Analogue angle wrapping D Diagnostic Config info E Set Physical Comms F Signal Processing G Averaging Settings H Power on message I Disable Enable analogue input J High Low Resolution K Minimum Direction Velocity L Message Terminator M Message Format N Set Unit ID O Set ASCII format P Set output rate Q MEASUREMENT MODE R Not used S Analogue output ...

Page 52: ...ing B ENTER at the new Baud rate E g If set to B3 9600 baud to change to B5 38400 baud enter B 5 ENTER change host terminal to 38400 baud and confirm by entering B ENTER NOTE a random echo may be generated after the B5 confirmation Certain combinations of output rate baud rate and message type may be unsupported Cx Analogue output polar direction wrapping 1 540 degree wraparound on analogue output...

Page 53: ...etting Config 01 5m s to Config 08 120m s and Configuration code for Mode 5 equates to angle wrapping where Config 01 540 degree wraparound Config 02 360 degree wraparound Ex Set Physical Communications 1 AUTO 2 485 3 232 It is recommended to leave the unit in AUTO mode This can also be overridden from RS232 to RS422 485 by On 31 way connector units without a Pipe Mount Box link the comms line to ...

Page 54: ...rtake a full set of firings at 20 Hz or 32Hz and output the average result of them after the 1 second period 12 Calibration Enabled Default is ON Enabled Generic data based on that collected during wind tunnel testing is programmed into an internal calibration table that is used to compensate for turbulence created around the spars and transducers Disabled Turns off the calibration table data ther...

Page 55: ...eatedly fails after power on contact your supplier Ix Enable Disable analogue input message 1 Analogue input data off 2 Analogue input data on 3 Analogue inputs set for 2 Differential Mode pairs Jx Set the unit Resolution 1 Select Normal Resolution 2 decimal point readings 2 Select High Resolution 3 decimal point readings J2 High resolution is applicable to Wind Speed and Wind direction for Metres...

Page 56: ...e condition Q 251 7 000 860 000 401 M 346 43 024 80 00 2 4181 2 4187 2 4169 2 4175 50 00C 7F Q 999 9 999 999 999 999 M 999 99 999 99 07 2 4181 2 4187 2 4169 2 4181 50 00C 77 Px Set output rate Note the P9 setting is an option on the WindMaster unit which must be specified at the time of ordering 1 Rate is 1 Hz 20Hz Sampling 2 Rate is 2 Hz 20Hz Sampling 3 Rate is 4 Hz 20Hz Sampling 4 Rate is 5 Hz 2...

Page 57: ...set required ranges 1 0V to 5V range 2 2 5V to 2 5V range 3 4mA to 20mA range 4 5V to 5V range 5 0mA to 20mA range Ux Set units 1 m s 2 Knots 3 MPH 4 KPH 5 FPM Vx Enable Disable PRT 1 OFF 2 ON Note PRT not an Option fitted to the WindMaster Xx Axis Alignment 1 Align U Axis to unit North Spar See Fig 2 2 Align U to the top axis transducer 1 3 Same as X1 but inverted for upside down operation 4 Same...

Page 58: ...____________ 58 10 3 Viewing and logging WindMaster Data using Gill WindView Software WindView is supplied on the equipment CD but can also be downloaded from http gillinstruments com main software html Open WindView and Select File Connect Select appropriate connection COM Port number and instrument Baud rate Select output format UV or Polar to match the WindMaster setting ...

Page 59: ..._______________________________________________________________________________________________________________________ 59 WindMaster 3 axis data will scroll on screen at the instruments output rate 2Hz shown Click on the WindSock tab to see a graphical display of wind ...

Page 60: ...menu click on Settings Logging If segmented logging files are required tick Enable and set the time for creating each log file Append Time stamp Append record count as required A free text field is available for logging comments Select a file directory and Name Click on Apply Follow Note instruction to start logging on the top Menu Select File Log Start To Stop Logging Data When logging is require...

Page 61: ...ind Software Tools Synch Comms 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 WindMaster and host system match Try using Gill Wind Software Tools Synch Comms Try a slower baud rate Check cable lengths and type of cable One way communicati...

Page 62: ...tus error codes 5 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 all three axes are functioning 6 Note that this a quick functional test There are no calibration adjustments See 12 3 Note Refer to Dx diagnostic and configuration information for further self tests 12 2 Head Alignment Test A test is available...

Page 63: ..._____________ 63 On the screen use the drop down menu for Connect using and select COM1 Port or applicable COM port Click OK On the following screen Set Bits per second drop down menu to the appropriate WindMaster baud rate setting e g 19200 bauds is the default WindMaster setting Set Data Bits to 8 Set Parity to None Set Stop Bits to 1 Set Flow Control to None Click on OK ...

Page 64: ...te with the WindMaster Type or hold down star This will bring up the text CONFIGURATION MODE Type D1 The unit will respond with the serial number Type D2 The unit will respond with the Software version Type D3 The unit will respond with the unit Configuration D6 Test Type D6 xx and then press Enter where xx is the temperature in deg C between the limits 14 to 22 deg C So for instance if you have a...

Page 65: ...justments the unit is designed NOT to require re calibration within its lifetime Standard calibration Accuracy at 12 m s Wind speed 1 5 RMS Direction 2 Certified calibration The unit can be Wind tunnel calibrated in accordance with ISO 16622 with traceability to national standards This should be specified when ordering or the unit can be returned to Gill Instruments for retrospective calibration A...

Page 66: ...e 1 Hz or faster sonic temperature performance remains excellent and unchanged Eddy Covariance Quality The improvements allow the WM WM Pro users to consider using the sonic temperature output as a general thermometer reading where appropriate for ancillary measurements and to assist in H2O flux corrections without the need for additional thermometers and associated errors time series different sp...

Page 67: ...sional wind flows using Gill 3 Axis products without any head correction applied so no u v or w correction Using Gill Wind software allows the user to disable Calibration to collect data in a raw mode without any correction and also to allow users to decide if they wish to apply any recent AoA Angle of Attack corrections being developed by the community Nakai et al 2012 for example Users of Gill W...

Page 68: ...d WindMaster Pro 1561 PS 0001 Issue 11 February 2017 ________________________________________________________________________________________________________________________ 68 13 3 Nakai 2012 Correction Information ...

Page 69: ...ter and WindMaster Pro 1561 PS 0001 Issue 11 February 2017 ________________________________________________________________________________________________________________________ 69 13 4 Electrical Conformity ...