ATI - EE82 Series - Dual Beam CO2 Sensor - Data Sheet

98Measuring instruments in green houses or life stock barns areexposed to a very demanding environment: high humidity levels,pollutants like fertilizers, herbicides and high ammonia concen-trations are just a few of the many hazards.The robust, functional housing of the EE82 with integrated special filter has been designed for such applications.The air diffuses through the filter into the instrument enclosure.Then the air diffuses further through a second membrane filterintegrated in the CO2 measuring cell.The CO2 measurement is based on the non-dispersive infrared(NDIR) technology. The patented auto-calibration procedurecompensates for aging of the infrared source and guaranteeshigh reliability, long term stability and eliminates the need ofperiodical recalibration in the field.Measuring ranges of 0...2000/5000/7000ppm correspond to an analogue interface of 0 - 5/10V or 4 - 20mA.Selectively a switching output with adjustable switching point and hysteresis is available. The very practical snap-in mounting flange and connector for the supply voltage and outputs allow quick andeasy installation of the EE82 without ever opening the housing.Measuring ValuesMeasuring principle Non-Dispersive Infrared Technology (NDIR)Sensing element E+E Dual Source Infrared SystemMeasuring range 0...2000/5000/7000ppmAccuracy at 20°C (68°F) 0...2000ppm < ± (50ppm +2% of measuring value)and 1013mbar 0...5000ppm < ± (50ppm +3% of measuring value)0...7000ppm < ± (50ppm +5% of measuring value)Response time t63 1) < 120sTemperature dependence typ. 2ppm CO2/°CLong term stability typ. 20ppm / yearSample rate ca. 30sOutputAnalogue Output0...2000/5000/7000ppm 0 - 5 / 0 - 10V -1mA < IL < 1mA4 - 20mA RL < 500 OhmSwitching OutputMax. switching voltage 50V AC / 60V DCMax. switching load 1A at 50V AC 1A at 30V DCMin. switching load 1mA at 5V DCContact material Ag+Au cladGeneralSupply voltage SELV 24V AC ±20% 15 - 35V DC SELV = Safety Extra Low VoltagePower requirement < 3WWarm up time < 5 minHousing / protection class PC / IP54Electrical connection M12 plugElectromagnetic compatibility EN 61000-6-3 ÖVE EN61326-1+A1+A2:05.2002EN 61000-6-1 FCC Part 15 ICES-003 ClassBWorking temperature and conditions -20...60°C (-4...140°F) 0...100% RH Storage temperature and conditions -20...60°C (-4...140°F) 0...95% RH (not condensating)1) minimum air velocity 1m/s (200ft/min)EE82EE82 Series EE82 Series green housesfruit and vegetable storagelife stock barnseasy installationcompact housingauto-calibrationmeasuring range 0...2000/5000/7000ppmanalogue or switching outputCO2 Transmitters and Switches forAgriculture ApplicationsTTypical ypical AApplicapplicationstions FFeaeaturturesesTTecechnical Dahnical Datatav1.3EE829951 (2”)80 (3.15”)80 (3.15”)CO2 (C)MODEL0...2000ppm (2)0...5000ppm (5)0...7000ppm (7)MEASURING RANGE OUTPUTEE82-0 - 5V (2)0 - 10V (3)4 - 20mA (6)switching output (S)Dimensions (mm)Dimensions (mm)Connection DiaConnection DiaggrramamOrOrdering Guidedering Guide OrOrder Exampleder ExampleEE82-5C3Measuring range: 0...5000ppmModel: CO2Output: 0 - 10VEE82snap in - mounting kit1) GND internally conectedAnalogue Output Switching OutputEE82-xCSEE82-xC2/3/6switching offppm20001000500relay statusswitching onONOFFHysteresis [% of MR]Level [% of MR]25% of MR