CO2传感器

(6(6(6(6�������������������� � &2��VHQVRU�PRGXOH&2��VHQVRU�PRGXOH&2��VHQVRU�PRGXOH&2��VHQVRU�PRGXOH���� 'DWD�6KHHW'DWD�6KHHW'DWD�6KHHW'DWD�6KHHW� � 5HYLVLRQ����5HYLVLRQ����5HYLVLRQ����5HYLVLRQ�������� ���� � � � � � � � 9HU������������������������(6����� � � �� � � � � � /LVW� ����＞?＞?＞?＞?����6666XPPDUL]HXPPDUL]HXPPDUL]HXPPDUL]H＞?＞?＞?＞?.............................................................................................................................. ���� ����＞?＞?＞?＞?7777HFKQLFDO�SDUDPHWHUVHFKQLFDO�SDUDPHWHUVHFKQLFDO�SDUDPHWHUVHFKQLFDO�SDUDPHWHUV���� ............................................................................................. ���� ����＞?＞?＞?＞? 3333LFWXUH�RI�IUDPH�VL]HLFWXUH�RI�IUDPH�VL]HLFWXUH�RI�IUDPH�VL]HLFWXUH�RI�IUDPH�VL]H＞?＞?＞?＞? ......................................................................................... ���� ����＞?＞?＞?＞? 6666LJQDO�RXWSXWLJQDO�RXWSXWLJQDO�RXWSXWLJQDO�RXWSXW：?：?：?：? .................................................................................................................. ���� ����＞?＞?＞?＞? ,,,,QVWDOODWLRQQVWDOODWLRQQVWDOODWLRQQVWDOODWLRQ�VWDWH�VWDWH�VWDWH�VWDWH：?：?：?：? ................................................................................................... ���� 9HU������������������������(6����� ����：?：?：?：? ����6666XPPDUL]HXPPDUL]HXPPDUL]HXPPDUL]H：?：?：?：?���� The ES-103 CO2 module is designed to measure CO2 level in the air. This product is maintenance- free, low cost and integrated into other equipments especially. It’s main application area is Indoor Air Quality, HVAC, CO2 transmitter, Agriculture. ���� ���� ���� ���� ���� ���� ���� ���� ���� ���� 9HU������������������������(6����� ���� ���� ���� ����：?：?：?：? 7777HFKQLFDO�SDUDPHWHUVHFKQLFDO�SDUDPHWHUVHFKQLFDO�SDUDPHWHUVHFKQLFDO�SDUDPHWHUV�������� Measurement Range＞? 0三?5000ppm＞?selection of range＞? Resolution＞? 5ppm＞?0三?2000ppm＞? 10ppm＞?2000三?5000ppm＞? Precision＞? f50ppm Repeatability＞? f30ppm Step Response Time(90%)＞? 30 Sec warm-upTime＞? ＞?3 Min Operating Temperature＞? 0三?60、? Operating Humidity＞? 0%三?90%RH＞?Non-condensing＞? Storage Temperature: -20三?60、? Power Input＞? 4三?6V Current consumption＞?Max�＞?100mA, Average＞?50mA Work life＞? ＞?5Years 9HU������������������������(6����� ����：?：?：?：? 3LFWXUH�RI�IUDPH�3LFWXUH�RI�IUDPH�3LFWXUH�RI�IUDPH�3LFWXUH�RI�IUDPH�VL]HVL]HVL]HVL]H���� 9HU������������������������(6����� ����：?：?：?：? 6LJQDO�RXWSXW6LJQDO�RXWSXW6LJQDO�RXWSXW6LJQDO�RXWSXW���� Signal＞?Simulation Voltage Output＞?PWM Output and UART Output Pad1、? Pad15＞?Vin＞?Power Input 4~6 V＞? Pad2、?Pad3、? Pad12＞?GND Pad4＞?DAC2 Pad5＞?DAC1 Pad6＞?PWM output Pad7、? Pad8、? Pad9＞?NC Pad10、?Pad13＞?UART＞?RXD＞? 0三?3.3V Date Input Pad11、?Pad14＞?UART＞?TXD＞? 0三?3.3V Date Input 三?、?Simulation Voltage Output DAC1 Voltage Output Range＞?0三?2.5V＞?＞?parallelism CO2 concentration＞?0三? full range＞? DAC2 Voltage Output Range＞?0.4三?2V＞?＞?parallelism CO2 concentration＞?0三? full range＞? 二?、?PWM Output CO2 concentration Output range 0ppm三?2000ppm OC Allow Max Current 5mA maximum period 1004mVf��� period began part high YROW�RXWSXW������PV＞?QRPLQDO＞?� PLGGOH�SDUW�SHULRG��������������������PVf��� SHULRG�HQG�SDUW�ORZ�YROW�RXWSXW������PV＞?QRPLQDO＞?� 3:0�JHW�QRZ�&2��concentration date＞?� )4/()2(2000 msTTmsTC LHHppm −+−×= � among＞?� ppmC ���calculate and receive the CO2 concentration Date＞?XQLW�LV�SSP＞?� HT �RQH�RXWSXW�SHULRG三?V�KLJK�YROW�WLPH＞?� LT �RQH�RXWSXW�SHULRG三?V�ORZ�YROW�WLPH＞?� Figure3＞?PWM Output sketch map 9HU������������������������(6����� 三?、?UART communicate agreement Date get of proceeding and hardware of RS232 communication Baud rate＞?9600; Number of Bits:8 Bits; Stop Bit:1 Bit＞?None verify Bit Each date 9 bits＞?0xff Began＞?verify number over Verify number = ＞?Get negative＞?DATA1+DATA2+、＞、＞+DATA7＞?＞?+1 1、?Read sensoU�concentration date and temperature date＞? lead computer send sensor concentration date: as follows is send order＞? 0 1 2 3 4 5 6 7 8 Began 0XFF Monitor Serial number Instruct 0x86 00 00 00 00 00 verify number 9HU������������������������(6����� Second computer return date pattern＞? 0 1 2 3 4 5 6 7 8 Began 0XFF Monitor Serial number Passage high Passage low temperature passage Verify date Gas concentration date = high *256+ low, Sensor Serial number＞?0x01 Environment T Date = T Passage 2. Zero verify: 0xff, 0x87,0x87,0x00,0x00,0x00,0x00,0x00,0xf2 First bit(0xff) is began bit＞?Second (0x87)is repeat order＞?Third(0x87)is order, after five bit is random date, last bit(0xf2)is verify and none return message、? CO2 sensor zero verify need giving five minute N2、? 3. SPAN dot verify＞?0xff,0x88,0x88,0x00,0x00,0x00,0x00,0x00,0xf0 First bit(0xff) is began bit＞?Second (0x88)is repeat order＞?Third(0x88)is order, fourth bit is span high date＞?Fifth bit is span low date＞?After three bits is random date, last bit (0xf0) is verify and none return message、? ����：?：?：?：? ,,,,QVWDOODWLRQQVWDOODWLRQQVWDOODWLRQQVWDOODWLRQ�VWDWH�VWDWH�VWDWH�VWDWH����