USER MANUAL
Contents
1. LB 2 byte length followed does not include CS CMD command EC the error code that command is not implemented correctly CS CS NAK LB CMD DF EC 01 Order length is wrong 02 There is no this command 03 Can t implement this command under current status Function list No Function C Description MD 1 Check measuring results 0x01 Besides measuring data it also has status information CE PS CE LD DIWELL ELECTRONICS Additional Information stat Ce X CIUM Diwell Electronics Co Ltd HIE PEN DAH 148HZ 17 A 10035 SAXE SHIT A 1003 17 Gosan ro 148beon gil Gunpo si Gyeonggi do Korea Phone 070 8235 0820 82 70 8235 0820 Fax 031 429 0821 82 31 429 0821 Homepage http www diwell com Shopping mall www diwellshop com JIE U OH Z email expoeb2 diwell com dsjeong diwell com2. Max Drift T2 FS Resolution 10ppm Response Time T90 30S Accuracy 40ppm 2 reading Size 41 43 16 mm Repeatability lt 2 Sampling mothed diffusion Working voltage DC5V 5 Working current average OmA peak 120MA PWM linear output UART Data bit 8 Stop bit 1 Check bit null Standard baud rate 9600bps Working voltage OC 50C Humidity 0 95 RH non condensing Singal output PWM RS232 TTL 0 4V 12C Life Time 5 10years 4 Dimensions 4 1 schematic diagram 43 16 41 4 2Product Display 1 5 NG main board light source S air chamber contact pin probe 4 3 IVO definitions r POWER SUPPLY INPUT 5V z PWM2 Reservation Note Pin1 and Pin2 are RS232 communication terminals on the board RS232 TTL on the board is 0 3 3V able to be compatible with 5V SCM It should convert TTL if connecting to the computer via RS232 For example Using transferred IC ADM3202 RS232 communication reference diagram 5 PWM output PWM cycle 1004ms Positive pulse width PWM output diagram PPM 2 2ms 1004ms OPPM pA APPM yl ae Sms JMS Pe sppm d li O gl _ C34ms JU a 500PPM 999ms Ok om 1994PPM NI 100ems CMS EN ES e2000PPM 100 Ams DE re 6 zero setting short circuit for 3seconds the model is adjusted to 400ppm Note please do zero setting in Well ventilated areas 7 Note The marked place in belo
3. MINI INFRARED NDIR CARBON DIOXIDE CO2 SENSOR MODULE CM1104 USER MANUAL ADD Fenghuang No 3 Road Fenghuang Industrial Park Eastlake Hi tech Development Zone Wuhan 430205 China Ver 2013 11 TEL 86 27 81628831 Wuhan Cubic Optoelectronics Co Ltd FAX 86 27 87405251 info gassensor com cn Note The data in the picture is for reference only and the actual delivered goods shall prevail 1 Function CM1103 CO2 gas sensor module is mainly used to test CO2 concentration indoor air quality measurement such as CO2 measurement in ventilation control system building school hospital and CO2 control in air conditioner mushroom fireplace 2 Working principle CO2 gas is composed of different types of atoms have absorption spectrum in infrared range Absorption intensity abides by Lamber Beers Law Basic working principle of NDIR sensor is as below Inlet outlet detector spectral filter Basic mathematical model A majority of both organic and inorganic polyatomic gas have specific absorptive wavelength in infrared region It observes Lambert Beer Law formula l0e kpl when infrared light is coming through Light absorption intensity i can be described as i I0 I 10 1 e kpl 10 intensity of incoming ray transmitting beams thickness of gaseous medium p gas concentration k absorption coefficient 3 Specification Technology NDIR Measurement range 0 2000ppm 0 5000ppm 0 10000ppm
4. w picture must be hang in the air The socket place must be hang in the air 8 After sales services and consultancy TEL 86 27 81628831 86 15623290125 ADD Fenghuang No 3 Road Fenghuang Industrial Park Eastlake Hi tech Development Zone Wuhan 430205 China FAX 86 27 87401159 Skype shirley wenya Http www gassensor com cn E mail info gassensor com cn Communication protocol Baud rate 9600bps Data bit 8 Stop bit 1 Check bit null Summary 1 The data in the explanation are all hex data Such as 46 is decimal 70 2 xx is single byte data no symbol 0 255 xx is double byte data signed integer 32768 to 32767 the top one is ahead followed by explanation 3 All the data are integer It has 100 10 and 1 times relationship with true data 4 The length of command byte is LB 3 Command Format Send IP LB CMD DF CS IP address fixed as 11 LB byte length followed does not include CS CMD command DF parameter items with command optional CS CS IP LB CMD DF Response a When the command is implemented correctly it responses ACK LB CMD DF CS ACK 0X16 right command LB byte length followed does not include CS CMD command DF parameter items with command optional CS CS ACK LB CMD DF b When the command is not implemented correctly it responses NAK LB CMD EC CS NAK 0X06 Command is not implemented correctly
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