模块特点:1.方便安装2.PCB尺寸:5.1*5.7*1.4CM3.带有MODBUS通讯协议模块可选择测量项:温度,湿度,压力GeneralPerformance:StorageTemperatureRange................-30to+70 CSensorLifeExpectancy........................ 15yearsMaintenanceInterval............................nomaintenancerequiredSelf-Diagnostics...................................completefunctioncheckofthesensormoduleWarm-upTime..................................... 1minOperatingTemperatureRange............0to50 COperatingHumidityRange...................0to95%RH(non-condensing) OperatingEnvironment........................Residential,commercial,industrialspacesandPotentiallydustyairductsusedin HVAC(HeatingVentilationandAir-Conditioning)systems.Electrical/Mechanical:PowerInput...........................................4,5-14VDC,stabilizedtowithin10%(externalprotectioncircuitsrequired) CurrentConsumption............................40mAaverage 150mApeakcurrent(averagedduringIRlampON,120msec) 300mApeakpower(duringIRlampstart-up,thefirst50msec)ElectricalConnections........................terminalsnotmounted(G+,G0,OUT1,OUT2,Din1,Din2,Status,TxD,RxD) Dimensions........................................5,1x5,7x1,4cm(LengthxWidthxapproximateHeight)CO2Measurement:SensingMethod....................................non-dispersiveinfrared(NDIR)waveguidetechnologywithABC automaticbackgroundcalibrationalgorithmSamplingMethod..................................diffusionResponseTime(T1/e)...........................20secdiffusiontimeMeasurementRange............................0-5000ppmvolSensitivity.............................................. 20ppm 1%ofmeasuredvalueAccuracy............................................. 30ppm 5%ofmeasuredvaluePressureDependence...........................+1.6%readingperkPadeviationfromnormalpressure,100kPaOn-boardcalibrationsupport.................Din1switchinputtotriggerBackgroundCalibration@400ppmCO2 Din2switchinputtotriggerZeroCalibration@0ppmCO2LinearSignalOutputs:D/AConversionAccuracy...................... 2%ofreading 20mVOUT1D/AResolution.........................10mV LinearConversionRange........0-4VDCfor0-2000ppm vol. ElectricalCharacteristics...........ROUT 100 ,RLOAD 5k ,Powerinput 4,5VOUT2D/AResolution.........................5mVLinearConversionRange........1-5VDCfor0-2000ppmvol.ElectricalCharacteristics...........ROUT 100 ,RLOAD 5k ,Powerinput 5,5VDigitalOutputs: ElectricalCharacteristicsHighOutputlevelintherange2.3VmintoDVDD=3.3V.(1mAsource) .............................Lowoutputlevel0.75Vmax(4mAsink).Protection56Rresistorinseries. Function..................................HighlevelatCO2High OUT3,CO2HighAlarm/ResetLevel...800/700ppmOUT4,CO2HighAlarm/ResetLevel...1000/900ppm UARTSerialcomport: Protocol...............................................MODBUSopenprotocol,referspecificationandregistersdefinitionsHardwareinterface...............................CMOSUARTwithRxD,TxDRate ......9600