Weather Stations Blue v5 - Ekotechnika

WEATHER STATIONSPRODUCT INFORMATIONDELTA-T DEVICESDelta-T Weather Stations are in useall over the world. Application areasinclude agriculture, hydrology,ecology and meteorology.Whatever theapplication, Delta-Tcan help you selectthe best combinationof sensors, datalogger andaccessories.● Field proven in severe weatherconditions worldwide● Unattended weather recording atremote and exposed sites● Wide choice of sensors andaccessories● GSM modem communicationsWimbledon Centre CourtOne of the most valuable "crops" in the world is the grass surfaceon which international sporting events take place. Whether thesport is soccer, rugby, golf or lawn tennis, the grass has to be inthe best possible condition to withstand periods of intensive use. AtWimbledon, the Centre Court is rarely used outside the famousannual Tournament, butduring these 2 or 3 weeks itreally takes a pounding.The experts responsible forthese surfaces need tomeasure and react to theenvironmental variablesthat profoundly affect grassgrowth and health. AtWimbledon a Delta-TWeather Station and soilmoisture sensors help toensure that the grass is inoptimal condition for theopening day.Automatic weather stations from Delta-T can be assimple or as complex as your application requires. Evenafter installation, it’s easy to expand or adapt thesystem; the additional hardware and software can beinstalled by the user, in the field.All systems are based on the dependable DL2e DataLogger which has the power and flexibility to handlealmost any environmental sensor.Off-the-peg systems are available for the mostpopular sensor combinations:– The Standard System type WS-STD1comprises 7 sensors (rain, wind speedand direction, solar energy, RH, air andsoil temperature), with 2m mast,canopy and accessories.– The High Performance Systemtype WS-HP1 (illustrated) alsocomprises 7 sensors, measuringthe same variables, but somesensors are higher specificationmodels (see page 2 for details).These off-the-peg weather stationscan also be used as handy buildingblocks when specifying simpler ormore complex environmental monitoringsystems.Simple systems If your application requiresjust a few sensors, Delta-T can offer a suitable,minimised system with or without a mast. In ourexperience, many such systems are laterexpanded to include additional sensors, andthis is easy to do with the DL2e Logger.Complex systems Delta-T has extensiveexperience of supplying and installingcomplex weather stations. These often involvea wide range of inputs, including soilmoisture sensors andhydrological sensors.These EnvironmentalMonitoring Systemscan involve hundredsof sensors at multiplesites – please seepages 2 and 3 fordetails.

SensorsPrecipitationType Description Max. rate Operating Sensitivity Funnel Logger Cableof rainfall temp. dia. input detailsrange type §RG1 Tipping bucket raingauge. Usually used with Levelling Baseplate type RGB1. 500mm in 0 to 0.2mm 254mm COUNT 6m/2w(Heated version of RG1 available for use in snow - please ask Delta-T) 1 hour +60°C per tipRG2 Tipping bucket raingauge with optional accessories for ground or mast fixing. 360mm in 0 to 50°C 0.2mm 160mm COUNT 6m/2wCompact design. 1 hour per tipSurface WetnessSensor type SWSEvaporation Pan type EV2/PWater depthType Applications Sensor Measuring Error Operating Output Power Probe Logger Cabletype range at 20°C temp. voltage requirement length/dia input details[j] range (mm) type §WL1 Pressure transducer water depth probe for Silicon 0-350hPa ±6mm -20 to 100mV at 10V DC 96/17.5 DIF 5m/6wdepth measurements in sea, lakes, wells, diaphragm (mbar) or H 2 O +60°C 10V regulated, (contact ventedtanks, bore-holes, etc. transducer 0-3.57m H 2 O [k] excitation 5mA nominal Delta-T)[j] For other depths, please enquire [k] Assuming zero and span offsets are nulledSurface wetnessType Description Output Operating Sensitivity Active Probe Power Logger Cabletemp. (distilled area length/dia requirement input detailsrange water) (mm) (mm) type §SWS Surface wetness sensor for detecting dew or rain. Supplied 0V dry -25 to 1mm dia. 30 x 15 150/20 8-18V DC DIF 2m/4wwith 300mm galvanised steel pin for ground fixing >1.0V wet +55°C droplet 5mAEvaporationType Description Measuring Error Output Sensitivity Power Operating Logger Cablerange & Resolution range Requirement temp. input detailsrange type §EV2/G High precision pressure transducer design with no 0-250mm ±1mm 40 - 200mV 0.64mV 7.5 to 28V dc 0 to 50°C DIF 5m/4wmoving parts. No stilling well requirement water depth (typ ±0.5) per mm up to 22 mA ventedres. 0.2mmEV2/P Evaporation pan. Class A with drain plug. 1207mm diameter, 245mm deep.Solar radiationA comprehensive range of sensors forSolar and UV radiation measurement, suitablefor energy studies and most meteorological,environmental and agronomic applications.Sensor types ES2, QS2, GS1, GS2 and all UVsensors are cosine corrected.Solar radiation sensors (from top) Dome Net Radiometer NR2 and Tube Solarimeter TSLType Description Measuring Error Spectral Operating Sensitivity Logger Cablerange response temp.range input type details §ES2 High quality Si photodiode for solar energy measurements in 0 to 2kW m -2 ±15% 400-1050nm -10 to 10mV per SE 5m/2wnatural, unobstructed daylight. 30mm dia x 48mm. [l] [m] [n] +60°C (kW m -2 )QS2 High stability Si photodiode for solar radiation measurements 0 to 3 ±5% [l] 400-700nm -10 to 10mV/per SE 5m/2wfor crop and plant growth. Gives PAR output. Size as ES2 mmol m -2 s -1 +60°C mmol m -2 s -1TSL Tube solarimeter based on Monteith pattern thermopile, for 0 to 1.33 ±10% [l] 400-2200nm -30 to 15mV per SE 5m/2wmeasuring solar energy interception, e.g. in crops. Length 970mm kW m -2 +60°C (kW m -2 )GS1 Dome solarimeter (pyranometer), based on thermopile, for WMO 0 to 2kW m -2 ±10% 305-2800nm -40 to 10-35mV SE 5m/2wclass 2 solar energy reference measurements. Dome 36mm dia [l] [o] +80°C per (kW m -2 )GS2 Albedometer using 2 GS1s mounted back-to-back. For measuring 0 to 2kW m -2 ±10% 305-2800nm -40 to 10-35mV 2 x SE 5m/2wboth incident and reflected radiation [l] [o] +80°C per (kW m -2 ) 2 cablesNR2 Dome net radiometer based on thermopile, for reference -0.5 to ±5% at 0.25-60µm -40 to 100mV per SE 7m/2wmeasurements of net radiation +1kW m -2 20°C [p] +60°C (kW m -2 )[l] For daily integrals. [m] Can be reduced to ±5% (typical) with on-site calibration with thermopile pyranometer.[n] ±3% under standard lamp.[o] Over -10 to +40°C operating range.[p] Manufacturer’s figure.Not all sensor types and options can be listed in the space available. For example, some sensors have optional heaters.If you can’t see the item you require, please contact us.

SensorsUV radiationType Description Measuring Peak Band- Sensitivity Power Size Logger Cablerange wavelength width (per W m-2) requirement (mm) input detailstype §UV3pA A range of 3 UV sensors fitted with a photodiode 0-150W m -2 373 ± 2nm 31 ± 2nm 1mV 7-15V DC 50mm DIF 3m/4wUV3pBdetector and transimpedence amplifier. Accuracyfor all models is ±7.5% at 20°C.0-150W m -2 313 ± 2nm 26 ± 2nm 2mA dia xUV3pAB 0-200W m -2 360 ± 5nm 72 ± 5nm 48mmSunshine duration and solar irradianceType Description Output types, measuring range and Output Temp Power Logger Cablesensitivity and accuracy [q] Range Range require- input[r] ment typeBF3 Sunshine Sensor forPAR 0-2500 mmol.m -2 .s -1 1mV = 1 µmol.m -2 .s -1 0-2500mV -20 to + 50°C 5 to 15V 2 x DIF [s]Energy 0-1250 W.m -2 1mV = 0.5 W.m -2 0-2500mV with Alkaline DCIlluminance 0-200 klux 1mV = 0.100 klux 0-2000 mV cells or -20 to+ 70°CLithium cells6.5mA,(or 4 x1.5V AAsimultaneous outputs of Totaland Diffuse radiation andSunshine Status. Output unitscan be preset to PAR, Energyor Illuminance units, by theuser.internalSunshine No sun = open circuit, or = 0V n/a n/a 1 x DIGalkalineStatus [t] Sun = short circuit, or = 3.3Vbatteries)- analogueSunshine 0-1 Sun Hrs/hr n/a n/a 1 x DIFStatus [t] 0-24 Sun Hrs/dayLoggercable for3 outputsBFDL-05,BFDL-10,BFDL-25,BFDL-505m, 10m,25m,50mBF3H Thermostatically controlled Heater option 7 to 15V DC n/a n/a -20°C at 0 m/s 18W at n/a Heaterheater option for BF3. - requires 1.5A at 12 V wind speed 12V DC cableCannot be retro-fitted. power -10°C at 2 m/s 1.5A at BF3H-Cwind speed [u] 12V 5m[q] Accuracy: Total: ±12% Diffuse: ±15% Sun hours: ±10%wrt WMO definition.[t] Available as analogue or digital output.[r][u]Use 0.8 attenuator with logger cable to limit input rangefor DL2e to 0-2000mV max.Lowest snow and ice-free temperatures.[s]1 channel Total radiation and 1 channel for Diffuseradiation.Weather Station masts, enclosures and accessoriesM2M2-MINM-ENCL-BM-ENCL-MS/POLEM2-CAWS-CANES-MOUNTWS-GRKWeather Station Mast 2m - Comprises 2m Mast, cross arm, levelling unit, baseplate assembly, DL2e Logger canopy, guy ropes, stakes, assembly kitand user manual.M2 Mast excl Logger canopy - Comprises 2m Mast, cross arm, levelling unit, baseplate assembly, guy ropes, stakes, assembly kit and user manual.Excludes DL2e Logger canopy.Enclosure and 12V wiring kit, for mounting onto Delta-T masts. Back-plate mounted 12V battery wiring system with protected input power terminals.Comprises lockable IP54 steel enclosure, cable glands, DIN-rail, trunking and power distribution to sensors. Suitable for DL2e Data Logger and GSMmodem systemsEnclosure amd mains wiring kit, for mounting onto Delta-T masts. Description as M-ENCL-B but also includes main transformer and isolator. (Suitablefor 110-230V at 50-60 Hz).2m anodised aluminium pole - Aluminium mast suitable for mounting enclosure. Requires fixing in concrete base.Cross arm for WS masts. With mounting bracket for Weather Station Masts. Suitable for mounting Wind Speed and Wind Direction Sensors.DL2e Logger Canopy - includes 2 x U Bolts and DL2e mounting kit. Supplied as standard with M2 Mast.Levelling unit for ES2, QS2 and UV3 sensors - Mounting assembly for solar radiation sensors. For use with M2 and M2-MIN masts. Includes bubblelevel. Supplied as standard with the M2 mastGrounding and Rod Strap. Suitable for Delta-T masts.Taller masts are also available - please enquire for further details.Climate change research - Morecambe BayTo gain a better understanding of climate change,researchers at the UK Institute of Terrestrial Ecology used amobile laboratory to analyse emissions of carbon dioxide,methane and nitrous oxide collected at a number oflocations on the mudflats. A Delta-T Weather Stationprovided essential meteorological data that revealed, forexample, that rainfall quickly altered the composition of gasemissions, whereas wind speed and direction dictated thebuild up of trace gases above the mudflats.As often happens, the Delta-T Logger served more than onepurpose: it also recorded soil water content with aThetaProbe, water table fluctuation via bore-hole pressuretransducers and temperature profiles in the soil and estuarysediments with thermistor probes.The BF3 can measure the Total and Diffuse componentsof solar radiation, and calculates sunshine statusaccording to the WMO threshold (of 120 Wm -2 ) in thedirect beam. The BF3 does not need to be adjusted orrepositioned to track the sun.Delta-T Devices Ltd128 Low Road, Burwell, Cambridge, CB5 0EJ, EnglandTel: +44 (0)1638 742922 Fax: +44 (0)1638 743155Email: sales@delta-t.co.uk Web: www.delta-t.co.ukDOC REF: W/STN 05-2004