INSTALLATION MANUAL - Automatikprodukter
Contents
1. 9 4 5 9 5 ASSEMBLY AND USE OF THE WSDB 12 5 1 12 5 2 151 1 8 1124 191 1 18127 12 5 3 genre are 12 LIST OF FIGURES 1 WIRING DIAGRAM OF WSDA 3 2 1 TINE 2 8 WIRESIN DETATID 10 4 THEASSEMBLED WSDM 11 HE ASSEMBLED W SDB 13 LIST OF TABLES eames 3 2 ACOMBSHINS canes 7 3 Contents WSDB 12 Warning EMC Compatibility The installation of the following equipment must be installed in accordance with the following instructions detailed in this manual or EMC may be violated 2 eee Automatikprodukter WIND SENSOR SYSTEM WS SERIES 1 GENERAL DESCRIPTION OF THE SYSTEM The WSDA senso2. Accuracy 2 Linearity 2 Contactrating 50 Watts resistive Supply Voltage 100 maximum Current 1 Amaximum Note These are contact maximum ratings The product of the voltage and current that is switched must notexceed the maximum wattage rating of the contacts 50 Watts The use of this design also allows the anemometer to be used in circuits down to zero voltage and current without reducing the life expectancy of the reed switch It will be noticed in the circuit diagram Figure 1 thata 100 ohmresistor is fitted into the wiring This is because in long cable runs the capacitance between conductors is appreciable When the switch closes the capacitance 18 discharged across the contacts without resistor fitted this could lead not only to shortening of switch life but also to the generation of transients within the other wires Although only needed in longer cable runs this resistor is fitted as standard within the WSDA head Start up is defined as the speed required to commence the movement of the cups from a standstill in zero wind However in practice an anemometer rarely stops and very low wind speeds are able to be detected due to the low inertia cup assembly 6 eee Automatikprodukter WIND SENSOR SYSTEM WS SERIES 3 1 2 Direction sensor This is alow torque 1 Kohm potentiometer design using a3 mm shaft and associated bearings 3 off The vane is ofa balanced design Mechanic
3. lt i gt WIND SENSOR SYSTEM WS SERIES INSTALLATION MANUAL 1 kprodukter WIND SENSOR SYSTEM WS SERIES auco TABLE OF CONTENTS PAGE 1 GENERAL DESCRIPTION OFTHE SYSTEM 1 1 1 2 2 WIRING AND CONNECTION INFORMATION 3 2 1 tact eats a 3 3 ADDITIONAL TECHNICALINFORMATION 4 3 1 iaie aaa iaa eaa 4 3 1 1 SPECA SENSON ai a a E R E 4 3 1 2 Directon senson 5 3 1 3 Generalcableinftormation 5 3 1 4 1 5 3 1 5 Cable tunis onthe WS 4 6 3 2 Listofconnection information sheets csccessceceenceceeeeeceeneeceeeeeceeneeceeeeceeeeseeeeenaeeees 6 4 ASSEMBLY AND USE OF THE WSDM 7 4 1 B sic assembly E 7 42 a ea a 7 4 3 PNAS 7 4 4 Final 51111515
4. means that there are thus three blacks within the cable and care must be taken to ensure that the user does not confuse these To help in this regard each conductor has been labeled with a heat shrink marker The labels used are shown in Table 1 Table 1 Details of wiring colours COLOUR CONDUCTOR USE REED switch via 100 resistor REED switch POTENTIOMETER T1 usually excited viaaresistor POTENTIOMETER T3 usually to excitation GND WIPER of POTENTIOMETER T2 usually to analogue HI POTENTIOMETER usually to analogue LO GND 100R 1 WIND SPEED MERCURY WETTED REED SWITCH T1 WIND DIRECTION POTENTIOMETER 1KQ Figure 1 WIRING DIAGRAM OF WSDA 5 Automatikprodukter WIND SENSOR SYSTEM WS SERIES 3 ADDITIONAL TECHNICALINFORMATION This section gives a greater amount of information ofa technical nature relating to the WSDA sensor head including information relating to the cable whichis connected This 15 relevantif the cable is extended whichis quite common when the head has to be mounted in high positions or the logging display unit is to be positioned some distance from the head 3 1 Technical specifications 3 1 1 Speed Sensor This is amagnet operated mercury wetted reed switch giving a bounce free pulse per revolution of anemometer cups Calibration 1 contact closure 1 493 m Reeddetector Benchtestedtoa minimum speed of 90 m s Startup 0 5 m stypically
5. obtained Some would be around 2 Vdc and some around 0 Vdc If these were now averaged a result of around 1 Vdc would be obtained equivilent to South To get over this problem itis necessary to use a vectoring system to produce the correct results 3 2 List of connection information sheets For users that require further technical information on the connection of the WSDA head to specific loggers Environmental Measurements can supply further information in the form of data sheets These can be posted or faxed to the user ifrequired free of charge Order code Logger s covered WSDCAM 001 Campbell Scientific 10 21 8 Automatikprodukter WIND SENSOR SYSTEM WS SERIES 4 ASSEMBLY AND USE OF THE WSDM KIT The kit consists of the WSDA sensor head plus a full mast kit for mounting the head at the standard two metres height Itis of alightweightall aluminium construction and suitable for temporary or permanentuse All the alloy parts are black anodised with the exception of the elbow this being clear anodised Stainless steel screws are used throughout 4 1 Basic assembly Unpack and identify all parts of the WSDM kit from the box by using Figures 2 3 and4 and Table 2 The assembly instructions will refer to the item letters contained in Table 2 Table 2 Contents listof WSDM kit WSDA head elbow mount mast adaptor mast 2 sections mastjoiner base plate 4 pegs guy wires kit scr
6. 4 4 Final assembly Ifthe system is being assembled in the field then the four steel pegs are now fitted through the corners of the Baseplate f and into the ground They may require a little persuasion with a mallet Assemble an M6 bolt and washer through the hole ina stake k fit another washer and then the first shoulder nut as shown in Figure 3 and fully tighten Repeat for the other two stakes Place the upper mast assembly into the mast joiner e and tighten the six M4 set screws Again if this is in the field then while keeping the mastnear vertical itis necessary to position the three stakes k to be equispaced around the mast while at the same time ensuring the distance from the mast will suit the guys When the position is correct drive the stakes into the ground using a mallet Fit the ring end of the guy adjusters over the original shoulder nut and then fit another shoulder nut and tighten Repeat for the other two stakes Ensure mastis vertical by using a spirit level against mast and turn adjusters to set this Tighten the adjuster s locknuts Screw the M8 stud of the WSDA a head into the threaded end of the elbow b and then place end of elbow b into the top of mast 4 5 Alignment Using acompass the elbow of the mast must be aligned to point to the north See Figure 4 for explanation This method is usually accurate enough 50 however for better accuracy then an alternative is to lightly hold the windv
7. al travel 360 Endless Electrical travel 357 20 Calibration 0 1 Kohm potentiometer for 0 357 electrical travel Resistance tolerance 3 Linearity tolerance 0 5 Temperature Coefficient of wire 20 ppm C Temperaturerange 20 709 Supply Voltage 80 Recommended Max Voltage 24 It will be noticed in the circuit diagram Figure 1 thata 100 Kohm pull down resistor is fitted into the wiring within the head This is fitted to effectively remove the gap at north by tying the wiper T2 to the low terminal T3 The analogue inputs on some loggers will float giving odd readings when there is no input this value of resistor should eliminate this Linearity is slightly affected however this is only 0 01 which can usually be ignored due to the potentiometer s 0 5 linearity 3 1 3 General cable information Cable supplied as standard is 3 metres in length and may be shortened or lengthened as required If the cable is lengthened please ensure a good quality environmental connector or suitable waterproof junction box is used Extension cables used must be of a similar specification however separate cables for the speed and the direction components could be run 3 1 4 Cable technical information The cable sheathing is of halogen free polyolefin whichis flame retardant to BS 4066 and IEC 322 Part 3 The conductors 7 0 2 mm 24awg stranded tinned copper polyolefin insulated twisted pa
8. ane pointing in the direction of North and rotate the elbow until North is displayed on the real time display of the logger display unit This will obviously depend upon the logger used The easiest method of all relies on the logger firstly using a vectoring method of averaging and secondly being able to accept an offset of the resulting answer to be programmed in After aligning tighten the six set screws to stop the elbow from rotating The cable ties should be fitted to ensure atidy cable run down the mast Try to keep the cable following around the outside bend of the elbow to present as clean a profile to the wind vane as possible Also note that flapping of cables in the wind is a very common source of sensor failures 11 kprodukter WIND SENSOR SYSTEM WS SERIES GUY WIRES KIT g 2 7 DI WASHERS M6BOLT FIT EYE OF THE GUY TENSIONER HERE SHOULDER NUTS MOUNTINGS IN CLOSE UP STAKE k Figure 3 GUY WIRES IN DETAIL 12 Automatikprodukter WIND SENSOR SYSTEM WS SERIES Figure 4 THE ASSEMBLED WSDM KIT 13 kprodukter WIND SENSOR SYSTEM WS SERIES 5 ASSEMBLY AND USE OF THE WSDB KIT The WSDM kit consists of the WSDA sensor head plus a simpler mounting than the WSDM kit used when fixing to masts or poles of up to 50 mm in diameter The mounting is of an all clear anodised al
9. apolating the wind readings to distances well beyond the position of the sensor may not therefore be justifiable however with the low cost of the WSDA and the use ofa multi channel logger several heads could be installed over an area giving a better spatial coverage and amore precise estimate of an area s wind characteristics Highly precise measurements made at just one point may well be a waste of money due to spatial variability Vandalism can be a problem However if a fence is built around the station it should not be too close and should be of fairly open construction Due tothe compact and lightweight design of the WSDA head however itcan easily be installed high enough to be out of reach This may be sufficient to prevent interference 4 Automatikprodukter WIND SENSOR SYSTEM WS SERIES 2 WIRING AND CONNECTION INFORMATION This section gives information on connecting the WSDA to loggers including a circuit diagram For details on connecting the WSDA to specific loggers please see list of additional data sheets If extended cables are being used then ensure that the relevant technical information has been read in Section 3 of this manual 2 1 Wiring colours The cable supplied with the WSDA sensor head consists of three twisted pairs of inner conductors plus screen The 15 NOT connected within the head A pair of conductors consists of one colour plus it s associated black This
10. ews kit wire ties stakes 1 1 1 1 1 f 1 g 1 h 1 j 10 k 3 4 2 Lower mast assembly The mastis supplied part assembled and requires swinging the lower tube 41 of the mast through 90 to be vertical to the baseplate f Place a washer onto the bolt and slide bolt through holes in baseplate f and lower tube 41 then fit the washer and nut Screw six M4 set screws into the threaded holes of the mast joiner e Ensure the set screws do not protrude into the inside of the joiner 4 3 Upper mast assembly The upper mast also comes part assembled having the mast adaptor c pre fitted Screw six M4 set screws into the threaded holes of the mast adaptor c Three of these screws are fitted through the upper end of the tube d2 Ensure the set screws do not protrude into the inside of the joiner c The guy wires g again are supplied preassembled and should now be fitted to the mast Remove one of the M6 screws from the mast fit the small plate on the end of a guy wire g over the screw and replace the screw Repeat for the other two guy wires 9 kprodukter WIND SENSOR SYSTEM WS SERIES JOINER UPPER MAST TUBE d2 LOWER MAST M6 WASHERS 8 TUBE d1 M6 NUT BASEPLATE f Figure 2 MAST ASSEMBLY IN DETAIL 10 Automatikprodukter WIND SENSOR SYSTEM WS SERIES
11. irs 3 pairs A similar size drain wire is included with overall foil wrap screen Operating temperature 25 759 Overall dia 6 0mm Char impedance 85 ohm Capacitance metre 108 pF Equivalents BrandRex 57503 Belden 9503 ULstyle 2464 1 use voltages higher than the RECOMMENDED MAXIMUM then series limiting resistor must be included within the circuit If this is not done then a very effective HEATER will be produced 7 kprodukter WIND SENSOR SYSTEM WS SERIES 3 1 5 Long cable runs on the WSDA As mentioned in the Speed Sensor section there are no problems when long cable runs are used However with the Direction Sensor the situation is different in that the longer the cable is the longer the signal rise time and the longer itis before the inputhas settled This error is greater for the larger angles of wind direction If the logger allows for this forexample as Campbell Scientific CR10 or21X loggers do then use delay to eliminate this 10 m s 15 usually enough for virtually all situations but this does depend on the logger used Users beware For users who are new to wind monitoring a word of advice may be useful Ifa simple averaging system is used on wind direction a problem arises around the North direction Example If 357 equals a2 Vdc full scale reading and 0 equals a0 Vdc output Then if the wind 18 hovering either side of North anda number of readings are
12. lay unit This will obviously depend upon the unit used 14 Automatikprodukter WIND SENSOR SYSTEM WS SERIES 8 STUD d Detailing alternative horizontal mounting FIGURE 5 THE ASSEMBLED WSDB KIT 15 kprodukter WIND SENSOR SYSTEM WS SERIES The easiest method of all relies on the logger firstly using a vectoring method of averaging and secondly being able to accept an offset of the resulting answer to be programmed in After aligning tighten the clamps to stop the assembly from rotating The cable ties should be fitted to ensure a tidy cable run down the mast Ifthe WSDB kitis being fitted to a horizontal mast then the two M6 screws should be removed the bracket rotated 90 and the screws replaced and fully tightened When fitting to the mast ensure that the assembly is also vertically aligned 16 Automatikprodukter
13. loy construction 5 1 Unpacking and Assembly Unpack and identify all parts of the WSDB kit from the box by using Figure 5 and Table 3 Allofthe assembly will refer to the item letters contained in Table 3 Table 3 Contents listof WSDB kit WSDA head elbow mount bracket plate U bolts nuts washers M6bolts washers wire ties Assembly consists of fitting the two washers to the M6 bolts e and passing the bolts through the bracket plate c and screwing them into the threaded holes of the elbow mount Do notover tighten Screw the M8 stud of the WSDA head into the threaded end of the elbow mount b and while keeping the WSDA head perpendicular to the elbow mount b tighten the locknut to fix the WSDA head in position The U bolts d are now fitted through the bracket plate c and the nuts and washers fitted This completes the assembly 5 2 Fitting to a mast This completed assembly is simply fitted by slackening or removing the U clamps and placing the V section against the chosen mast then replace the clamps 5 3 Alignment Before tightening the clamps use acompass to ensure the elbow mountis aligned to the north See Figure 5 for explanation This method is usually accurate enough 50 however for better accuracy then an alternative is to lightly hold the windvane pointing in the direction of North and rotate the assembly until North is displayed on the real time display of the logger or disp
14. osen to install the WSDA sensor head will depend in part on the application to which it is being put and in part on the particular circumstances at the site Ifthe application is very specific such as monitoring wind speeds on abridge then the siting of the head is largely prescribed by use However even then some precautions need to be taken These are largely self evident but often overlooked Firstly a site should be chosen whichis as representative as possible of the area to be monitored Circumstances may limit choice but extremes shouldbe avoided when possible unless of course itis desired to measure the weather at these particular extreme sites Forexample sites on the top of hills however small will give increased windspeeds while in valleys and small hollows the reverse will also be the case Too close proximity to buildings trees will also affectreadings due to their shielding properties while deployment actually ona building flat roof or wall is particularly bad due to the obstruction of wind flow causing turbulence and eddies Because windspeed increases logarithmically with height above the ground for the first 20 metres but less thereafter exposure on a tall mast will give higher windspeeds Two metres is the most usual height adopted although the UK Meteorological Office standard is 9 metres It should also be remembered that all weather characteristics are spatially variable even over quite short distances Extr
15. r head incorporates a combination of wind speed and wind direction sensors and is manufactured in clear anodised HT30 aluminiumalloy The Wind Speed component consists ofa low inertia ABS cup assembly for fast response mounted on a dual ballrace supported stainless steel shaft The use of a Bremag 10 magnet operating a long life mercury wetted reed switch produces one bounce free pulse per revolution of the rotor The Wind Direction component consists of adynamically balanced wind vane operating a triple ballrace supported shaft and micro torque 357 potentiometer with a deadband of 3 at North With the above designs most modern loggers can be connected to these sensors with little or no interfacing An additional benefitis the zero power requirement Various possibilities exist for mounting the WSDM sensor head anda length of 8 mm stainless steel studding is supplied for this purpose However two systems are recommended the full mast kit WSDM or the bracket kit WSDB See the relevant sections within this manual for further details on the assembly and use of the above For OEM use special mountings could be made to suit if required dependent on demand Please contact Automatikprodukter to discuss yourexactrequirements The dimensions of the WSDA sensor head are Height 280mm arc 120mm Weight 500 gms approx 3 kprodukter WIND SENSOR SYSTEM WS SERIES 1 1 Choosing a site The site ch
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