CGESCO2D2ALN

Environmental SensorsCO2 Transmitters• Simple installation• Compact housing• Auto-calibration• Measuring ranges: 0...2000ppm or 0...5000ppm• 0-10V or 4-20mA output• Duct mounting• CE, RoHSProduct DescriptionOrdering KeyCGESC02D2 V L NDuct mounted CO2transmitters of the CGES series are designed forHVAC applications. The CO2sensing element uses theNon-Dispersive Infrared Technology(NDIR). A patented auto-calibration procedure compensates for drift caused by the aging ofthe sensing element and guarantees outstanding long term stability. Installed into a duct a small flow of air will be established byconvectionthroughtheprobe into the transmitter housing andbackintothe duct. Inside the transmitter housing theairwilldiffuse through a membrane into the CO2sensing element.Measuring ranges of 0...2000ppm and 0...5000ppm correspond toananalogue interface of0-10V or 4-20mA. The instruments can be easily positioned in the duct with the standard mounting flange.ModelMeasuring rangeOutputProbe lengthVersionType SelectionModel OutputMeasuring range Probe Length Ordering No.CO2 Transmitter0-10 V 0...2000ppm 200 mm CGESC02D2VLN0-10 V 0...5000ppm 200 mm CGESC02D5VLN4-20 mA0...2000ppm 200 mm CGESC02D2ALN4-20 mA0...5000ppm 200 mm CGESC02D5ALNGeneral SpecificationsVoltage supply24VAC ±20%15-35VDCRecommended min.flow speed1m/sTemperature rangesCurrent consumptiontyp. 15mA + output currentWarm up time <5minHumidity 0...95% (not condensing)operating temperature range0°C - +50°Cstorage temperature range-20°C - +60°CElectromagnetic compatibility EN61326-1, EN61326-2-3Measuring ValuesCO2Measurement principle Non-Dispersive InfraredResponse time τ100s at 3m/s air speed in ductTechnology (NDIR)Measuring range 0...2000ppm / 0...5000ppmAccuracy @ 25°Cand 1013mbar0...2000ppm<±(50ppm +2% of meas. value)0...5000ppm<±(50ppm +3% of meas. value)Temperature dependence typ. 2ppm CO2/°CSample rate~15sSpecifications are subject to change without notice (05.09.2014)1