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      Senseair二氧化碳模塊K30-STA

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      產(chǎn)品簡介

      模塊特點: 1.方便安裝2.PCB尺寸:5.1*5.7*1.4CM3.帶有MODBUS通訊協(xié)議模塊可選擇測量項:溫度,濕度,壓力

      詳細介紹


      General Performance:

      Storage Temperature Range ................-30 to +70 °C

      Sensor Life Expectancy ........................> 15 years

      Maintenance Interval ............................no maintenance required

      Self-Diagnostics plete function check of the sensor module

      Warm-up Time .....................................≤ 1 min

      Operating Temperature Range ............0 to 50 °C

      Operating Humidity Range ...................0 to 95% RH (non-condensing)

      Operating Environment ........................Residential, commercial, industrial spaces and Potentially dusty air ducts used in

      HVAC (Heating Ventilation and Air-Conditioning) systems.

      Electrical / Mechanical:

      Power Input...........................................4,5-14 VDC, stabilized to within 10% (external protection circuits required)

      Current Consumption ............................40 mA average

      < 150 mA peak current (averaged during IR lamp ON, 120 msec)

      < 300 mA peak power (during IR lamp start-up, the first 50 msec)

      Electrical Connections ........................terminals not mounted (G+, G0, OUT1, OUT2, Din1, Din2, Status, TxD, RxD)

      Dimensions ........................................5,1 x 5,7 x 1,4 cm (Length x Width x approximate Height)

      CO2 Measurement:

      Sensing Method ....................................non-dispersive infrared (NDIR) waveguide technology with ABC

      automatic background calibration algorithm

      Sampling Method ..................................diffusion

      Response Time (T1/e) ...........................20 sec diffusion time

      Measurement Range ............................0 -5 000 ppmvol

      Sensitivity..............................................± 20 ppm ± 1 % of measured value

      Accuracy .............................................± 30 ppm ± 5 % of measured value

      Pressure Dependence...........................+ 1.6 % reading per kPa deviation from normal pressure, 100 kPa

      On-board calibration support.................Din1 switch input to trigger Background Calibration @ 400 ppm CO2

      Din2 switch input to trigger Zero Calibration @ 0 ppm CO2

      Linear Signal Outputs:

      D/A Conversion Accuracy......................± 2 % of reading ± 20 mV

      OUT1 D/A Resolution.........................10 mV

      Linear Conversion Range ........0 -4 VDC for 0 -2 000 ppm vol.

      Electrical Characteristics...........ROUT < 100 Ω, RLOAD > 5kΩ , Power input > 4,5 V

      OUT2 D/A Resolution.........................5 mV

      Linear Conversion Range ........1 -5 VDC for 0 -2 000 ppmvol.

      Electrical Characteristics...........ROUT < 100 Ω, RLOAD > 5kΩ , Power input > 5,5 V

      Digital Outputs:

      Electrical Characteristics High Output level in the range 2.3V min to DVDD = 3.3V. (1 mA source)

      ............................. Low output level 0.75V max (4 mA sink). Protection 56R resistor in series.

      Function .................................. High level at CO2 High

      OUT3, CO2 High Alarm /Reset Level ... 800/700 ppm

      OUT4, CO2 High Alarm /Reset Level ... 1000/900 ppm

      UART Serial com port:


      Protocol ...............................................MODBUS open protocol, refer specification and registers definitions

      Hardware interface ...............................CMOS UART with RxD, TxD

      Rate ......9600

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