A100R Switching Anemometer - Bad Request
Contents
1. Pty Ltd CSAf PO Box 2450 Somerset West 7129 SOUTH AFRICA www csafrica co za e sales csafrica co za Campbell Scientific Australia Pty Ltd CSA PO Box 444 Thuringowa Central QLD 4812 AUSTRALIA www campbellsci com au e info campbellsci com au Campbell Scientific do Brazil Ltda CSB Rua Luisa Crapsi Orsi 15 Butant CEP 005543 000 S o Paulo SP BRAZIL www campbellsci com br e suporte campbellsci com br Campbell Scientific Canada Corp CSC 11564 149th Street NW Edmonton Alberta T5M 1W7 CANADA www campbellsci ca e dataloggers campbellsci ca Campbell Scientific Centro Caribe S A CSCC 300N Cementerio Edificio Breller Santo Domingo Heredia 40305 COSTA RICA www campbellsci cc e info campbellsci cc Campbell Scientific Ltd CSL Campbell Park 80 Hathern Road Shepshed Loughborough LE12 9GX UNITED KINGDOM www campbellsci co uk e sales campbellsci co uk Campbell Scientific Ltd France Miniparc du Verger Bat H 1 rue de Terre Neuve Les Ulis 91967 COURTABOEUF CEDEX FRANCE www campbellsci fr e info campbellsci fr Campbell Scientific Spain S L Psg Font 14 local 8 08013 Barcelona SPAIN www campbellsci es e info campbellsci es Campbell Scientific Ltd Germany Fahrenheitstrasse13 D 28359 Bremen GERMANY www campbellsci de e info campbellsci de Please visit www campbellsci com to obtain contact information for your local US or International representative2. to specific sections T SDECHICATONS ieaie aaora sinapsi aio 1 2 Mounting euer aoaea ance ep AEE Ea 2 3 Connection to Datalogger 2 4 Programming the Datalogger 3 4 1 Example Program for CRBasic data loggers eee 3 4 2 Example Program for Edlog data loggers 4 5 Replacement of Bearings 5 Appendix A Fitting and Using the HE 1 De icing Heater A 1 Figures 1 A100R Anemometer Sectional View i 6 Tables Instruction 3 Multipliers for Different Execution Intervals with Option 12 ooi enge et eee ie ER ee rere 4 A100R Switching Anemometer The A100R anemometer is a precision instrument which is easily interfaced with Campbell Scientific dataloggers to give accurate measurements of wind run or mean wind speed A magnet turns with the rotor spindle producing a varying field which causes a mercury wetted reed switch to make and break contact once per revolution of the rotor The contacts are bounce free and no power is required apart from that necessary to detect contact closure the A100R is thus well suited for use on remote sites The rotor is tested by comparison with a rotor calibrated at the National Physical Laboratory and a calibration figure is provided with each instrument The anemometer is constructed from anodised aluminium alloy sta
3. use Please note however that when a power supply adapter is ordered it will be suitable for use in your country Reference to some radio transmitters digital cell phones and aerials may also not be applicable according to your locality Some brackets shields and enclosure options including wiring are not sold as standard items in the European market in some cases alternatives are offered Details of the alternatives will be covered in separate manuals Recycling information At the end of this product s life it should not be put in commercial or domestic refuse but sent for recycling Any batteries contained within the product or used during the products life should be removed from the product and also be sent to an appropriate recycling facility Campbell Scientific Ltd can advise on the recycling of the equipment and in some cases arrange collection and the correct disposal of it although charges may apply for some items or territories For further advice or support please contact Campbell Scientific Ltd or your local agent CAMPBELL SCIENTIFIC EUROPE WHEN MEASUREMENTS MATTER Campbell Scientific Ltd Campbell Park 80 Hathern Road Shepshed Loughborough LE12 9GX UK Tel 44 0 1509 601141 Fax 44 0 1509 601091 Email support campbellsci co uk www campbellsci co uk Contents PDF viewers note These page numbers refer to the printed version of this document Use the Adobe Acrobat bookmarks tab for links
4. washer and magnetic rotor 9 Unscrew the bearing retainer screws 8 and pull out the spindle with bearing retainer from below Remove the old seal 2 using a small screwdriver and push out the old top bearing from below using the spindle Clean all parts Place the lower bearing 6 onto the spindle 4 by inserting the spindle end into the packet of bearings to avoid contamination Place the bearing retainer 7 over the bearing and assemble with the top plate Replace screws 8 Slide on the magnetic rotor 9 place the washer 11 over the special nut 10 and screw on loosely Slide on the top bearing 3 by pushing the spindle end into the packet Press down using either a special jig the old clean bearing or a small screwdriver do not apply excessive pressure to the inner ring Ease in the new rubber seal 2 Re tighten nut 10 Lock this nut and screws 8 with a drop of shellac Replace the bottom 0 ring and top 0 ring fully up against the flange on the top plate Push on the body tube insert the module 16 with wires attached positioned such that the wires on the base plate will fall into the space provided at the bottom of the module If the module is to be changed a matching magnetic rotor should be obtained Alternatively the small magnet between the terminals can be broken free re adjusted and fixed using epoxy resin glue Test for 50 mark space ratio by connecting the anemometer to an ohm m
5. 1 1 Reps 2 1 Pulse Channel 1 3 12 Switch Closure Counts Discard Bad Intervals 4 1 Loc Wind_Spd Input Label 5 0 0625 Mult 6 0 0 Offset Offset see Note below NOTE ON OFFSETS For general use it is recommended that you use a zero offset with the A100R anemometer Use of a non zero offset improves low speed accuracy but adds an error at higher wind speeds However if you need to study very low wind speeds and you consider that a non zero offset may improve your measurements you may wish to specify an offset of 0 25 which represents the instrument s threshold speed of 0 25ms Ly User Manual 5 Replacement of Bearings The manufacturer recommends that the bearings be changed every 2 3 years In dusty environments this interval may need to be reduced The procedure is outlined below the numbers in brackets refer to Figure 1 1 10 11 12 Switch off the power disconnect the cable and remove the instrument from its mount Remove the rotor as described earlier Replace the spindle protector tube Clean the anemometer and rotor using a damp cloth or soapy water do not immerse Unscrew the nuts holding the base plate 15 using a SBA 5 5mm AF nut driver Pull off the base plate body tube and circuit module 16 Remove the protector tube Grip the spindle end using a hand vice with soft jaws and unscrew the magnetic rotor retaining nut 10 using a 6BA Smm AF spanner Remove the nut
6. A100R Switching Anemometer User Manual Issued 16 3 10 Copyright 2010 Campbell Scientific Ltd CSL 15 Guarantee This equipment is guaranteed against defects in materials and workmanship This guarantee applies for twelve months from date of delivery We will repair or replace products which prove to be defective during the guarantee period provided they are returned to us prepaid The guarantee will not apply to e Equipment which has been modified or altered in any way without the written permission of Campbell Scientific e Batteries e Any product which has been subjected to misuse neglect acts of God or damage in transit Campbell Scientific will return guaranteed equipment by surface carrier prepaid Campbell Scientific will not reimburse the claimant for costs incurred in removing and or reinstalling equipment This guarantee and the Company s obligation thereunder is in lieu of all other guarantees expressed or implied including those of suitability and fitness for a particular purpose Campbell Scientific is not liable for consequential damage Please inform us before returning equipment and obtain a Repair Reference Number whether the repair is under guarantee or not Please state the faults as clearly as possible and if the product is out of the guarantee period it should be accompanied by a purchase order Quotations for repairs can be given on request When returning equipment the Repair Reference Number m
7. ater and so the rotor calibration is affected Reduce the rotor calibration figure by 1 3 when a heater is fitted A 2 Specifications NOTE Operating Voltage AC or DC 5 12V Nominal Current 0 5A Element Resistance 45 24 ohms Nominal Power Rating 6W Temperature Rise 5 2 1 7 C W Max Allowable Temperature 70 C In still air figure in square brackets refers to 10m s wind speed i e anti icing of bearings effective to 10 C i e should not be operated continuously at ambient temperatures above 39 C When supplied separately the HE 1 is equipped with 3 metres of 6mm diameter 2 wire cable to DEF61 12 part 5 0 2mm tinned copper stranded cores nominal resistance 40mohms m overall braided screen and black pvc sheath If extending the cable use as low a resistance cable as is practical to avoid reducing the voltage supplied to the heater The screen is isolated from the heater end of the cable It should be earthed at the power supply end to give some protection in the event of lightning and also to minimise any interference from noise on the power supply output A 1 A100R Switching Anemometer A 3 Fitting the HE 1 to the Sensor A 2 a L heat shrink 3mm sleeve Referring to the above illustration fit the HE 1 heater as follows 1 Connect the two blue wires together and then connect the supply across the blue and white wires Thoroughly clean the surface of the tube Peel
8. back the protective paper and apply the centre of the heater against the tube and work outwards from the centre in both directions around the tube Place the heat shrink sleeve over the element as shown Using a heat gun hot air blower rotate the instrument slowly while applying heat evenly along the length of the sleeve so that the sleeve just shrinks sufficiently to touch the tube and element While still rotating the instrument move the heat gun closer in order to shrink the sleeve tightly Start from the spindle end and work towards the base in order to exclude any trapped air Check that the sleeve is in all round contact with the extension tube and that molten adhesive can be seen at the ends Bend the leads neatly around the instrument and tie or tape to the cable from the base Appendix A Fitting and Using the HE 1 De icing Heater A 4 Power Supply Connections The power consumed by the HE 1 is much greater than the normal requirements of a standard weather station e g 1A at 12V for a wind sensor pair It is not advisable to try to draw this power from the normal weather station supply e g from the PS100E LA power supply An alternative 12V power source is recommended which would normally be provided from an AC mains supply A 3 CAMPBELL SCIENTIFIC COMPANIES Campbell Scientific Inc CSI 815 West 1800 North Logan Utah 84321 UNITED STATES www campbellsci com e info campbellsci com Campbell Scientific Africa
9. e Main Program BeginProg Scan 2 Sec 1 0 Default Datalogger Battery Voltage measurement BattV Battery BattV A100R Wind Speed Sensor CSL measurement WS ms PulseCount WS ms 1 1 2 1 1 25 0 Offset see Note below If WS ms 0 01 Then WS ms 0 Call Data Tables and Store Data CallTable Table2 NextScan EndProg A100R Switching Anemometer 4 2 Example Program for Edlog data loggers The most convenient configuration code to use with Instruction 3 is 22 switch closure discard counts from excessive intervals output frequency A typical program would then be T Pulse P3 I ob Reps 2 1 Pulse Channel 1 3 22 Switch Closure Output Hz 4 1 Loc Wind Spd Input Label 5 1 25 Mult 6 0 0 Offset Offset see Note below See the individual rotor calibration sheet and when a heater is fitted Appendix A for minor corrections to the nominal figure Older Edlog dataloggers which do not have the frequency output option must be programmed with configuration code 12 In this case the multiplier chosen to give an output in units of ms depends on the execution interval set for whichever Table contains the Pulse Count instruction see Table 1 Table 1 Instruction 3 Multipliers for Different Execution Intervals with Option 12 Execution Interval Multiplier for A100R Anemometer 60s 0 0208 30s 0 0417 20s 0 0625 10s 0 1250 Example Program Execution Interval 20 seconds 2 Pulse P3
10. eter and rotating the spindle The meter should read half way across the scale Re wire the green and yellow leads to the outer lower two pins Ensure that the 0 ring is in place on the base plate rotate slightly when applying so that it rolls into place Replace the base plate A100R Switching Anemometer 13 Apply non drying silicone rubber compound around the studs replace the washers and nuts 15 Wipe off excess compound PS Vector ka Screen connect to datalogger ground Connect green wire to datalogger pulse counting channel and yellow wire to power ground blue and red wires not used Figure 1 A100R Anemometer Sectional View Appendix A Fitting and Using the HE 1 De icing Heater This Appendix gives the specification and details of the optional HE 1 anti icing heater When specified at the time of ordering the heater is fitted to the sensor during manufacture The information below gives full details of fitting the heater to an existing wind sensor A 1 Introduction NOTE The heating element must be supplied with a separate external 12V AC or DC power supply The effectiveness of the heater is dependent on the prevailing wind speed Typically it will provide protection down to 10 C at wind speeds of up to 10m s in dry air The heater does not prevent snow and ice build up on the rotor vane When a heater is fitted the airflow around the sensor is altered due to the physical shape of the he
11. inless steels and weather resisting plastics A stainless steel shaft runs in two precision corrosion resistant ball races The bearings are protected from the entry of moisture droplets and dust resulting in an instrument suitable for permanent exposure to the weather In the marine version A100R3 available to special order a touching shaft seal is fitted for extra protection in place of the standard non contact seal please note that this gives a small increase in the threshold speed An optional anti icing heater can be fitted if required see Appendix A 1 Specifications Threshold Speed 0 25ms 0 6ms A100R3 Max speed Greater than 75ms Accuracy 1 0 1ms Distance Constant 5m Calibration 0 80 revolutions per metre 1 pulse per 1 25 metres Temp Range 30 C to 55 C Size Height 200mm case diameter 55mm attached cable 3m Rotor Standard 150mm diameter 3 cup rotor Weight 350g including standard cable Fixing Rotor Patented gravity sensitive fastener for rapid attachment and release Anemometer Standard tripod screw 1 4 BSW UNC taper adapter also available Note that mounting must be within 15 of vertical Electrical Switching Voltage 100V DC max Switching Current 0 5A max Switch Rating 28W max DC resistive Duty Cycle 50 5 up to 50ms 10 up to 75ms Contact Resistance 0 050 Actuating Time 1 5ms Switch Bounce NIL Min Current NIL life not reduced by use i
12. n dry circuits Switch Life Rated 25 x 10 operations minimum See the individual rotor calibration sheet and when a heater is fitted Appendix A for minor corrections to the nominal figure A100R Switching Anemometer 2 Mounting CAUTION NOTE NOTE To attach the rotor remove the white protector tube hold the anemometer slightly out of vertical and lightly push on the rotor until positive location is obtained Take care not to damage the cups To remove the rotor first turn the instrument upside down and press upwards to release a gravity sensitive catch within the hub which will then slide off Avoid excessive force and take care not to damage the cups The A100R rotor is not interchangeable with the rotor from any other model of Vector Instruments anemometer Mount the anemometer using a 1 4 BSW screw into the base A 6 taper mounting is available as an alternative for portable applications Mount the instrument vertically to ensure accurate results and a long operational life Do not operate when the instrument is inclined at more than 15 from the vertical Bearing wear increases significantly if the anemometer is not properly levelled This instrument contains a magnetic reed switch partly filled with mercury If subject to shock or vibration during transit the mercury tends to become distributed in globules which may prevent correct operation of the instrument To rectify hold the anemometer ap
13. proximately vertical and shake downwards firmly and sharply This will drive the mercury back into its reservoir and force the globules together 3 Connection to Datalogger Contact closure is between the yellow and green wires the blue and red wires are not used Connect the green wire to one of the pulse counting channels on your datalogger and connect the yellow wire to power ground see note below It is also advisable to connect the screen to ground at the datalogger User Manual NOTE Power ground is marked G on the CR200 CR800 CR850 CR1000 CR3000 CR5000 CR23X CR10 10X and CR510 and il on the 21X and CR7 dataloggers 4 Programming the Datalogger Anemometers of the switching or contact closure type such as the A100R are measured with the Pulse Count instruction configured for Switch Closure Output is required as a wind speed in units of ms The nominal calibration of the A100R is such that Ims corresponds to 0 8 pulses sec if the likely maximum wind speed is 10ms then the maximum pulse rate from the anemometer will be 8 0 pulses sec 4 1 Example Program for CRBasic data loggers CR1000 Example program showing measurement of a single A100R sensor every 2 seconds Declare Variables and Units Public BattV Public WS ms Units BattV Volts Units WS_ms metres second Define Data Tables DataTable Table2 True 1 DataInterval 0 1440 Min 10 Minimum 1 BattV FP2 False False EndTabl
14. ust be clearly marked on the outside of the package Note that goods sent air freight are subject to Customs clearance fees which Campbell Scientific will charge to customers In many cases these charges are greater than the cost of the repair CAMPBELL SCIENTIFIC EUROPE WHEN MEASUREMENTS MATTER Campbell Scientific Ltd Campbell Park 80 Hathern Road Shepshed Loughborough LE12 9GX UK Tel 44 0 1509 601141 Fax 44 0 1509 601091 Email support campbellsci co uk www campbellsci co uk PLEASE READ FIRST About this manual Please note that this manual was originally produced by Campbell Scientific Inc primarily for the North American market Some spellings weights and measures may reflect this origin Some useful conversion factors Area 1 in square inch 645 mm Length 1 in inch 25 4 mm 1 ft foot 304 8 mm 1 yard 0 914 m 1 mile 1 609 km Mass 1 oz ounce 28 35 g 1 Ib pound weight 0 454 kg Pressure 1 psi Ib in 68 95 mb Volume 1 UK pint 568 3 ml 1 UK gallon 4 546 litres 1 US gallon 3 785 litres In addition while most of the information in the manual is correct for all countries certain information is specific to the North American market and so may not be applicable to European users Differences include the U S standard external power supply details where some information for example the AC transformer input voltage will not be applicable for British European
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