Senseair二氧化碳模块K30-STA

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

General Performance:

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

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

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

Self-Diagnostics ...................................complete 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)

CO2Measurement:

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

                                                             automatic background calibration algorithm

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

Response Time (T_1/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...........R_OUT< 100 Ω, R_LOAD> 5kΩ , Power input > 4,5 V

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

Linear Conversion Range ........1 -5 VDC for 0 -2 000 ppm_vol. Electrical Characteristics...........R_OUT< 100 Ω, R_LOAD> 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 atCO2High

 OUT3, CO2High Alarm /Reset Level ... 800/700 ppm

OUT4, CO2High 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