ZG03 CO2 Module User Manual
Contents
1. Message format EISE DATA DATA 20ms Frame Interval Fig1 Timing of SPI d ZyAura Monitor the invisible ZG03 CO2 Module SPIr Timing voltage specification SPIr is compatible with 3 3Vdc CMOS Data Clock Reset Pin ViH 2 0Vdc ViL 0 8Vdc VoH 2 4Vdc VO 0 8V DAC The analogue output of CO2 and temperature or RH is linear For example Aout CO2 Output is 1 6V that means CO2 concentration is 1 6 v 4 v 3000 ppm 1200ppm Aout Temp Output is 2 0V that means temperature is 2 0 v 4 v 50degC 25 0degC Dimension i 0 76in 12 2 105in 2 67mm Hole Through 2 0in 2Places 50 8mm desnp um Spacing for Interface _ Connector j i 1 0 12in B 1 12in 3 05mm 0 15in n 0 49in 28 48mm l Gsm 1T5in 44 45mm E 2 25in 57 15mm s DNE l Fig2 Board layout and component 0 065in 1 65mm Max 7 ZyAura Monitor the invisible ZG03 CO2 Module Module Type e 7ZG03 D Diffusion this is the default type Air can be introduced to the sensor via the flow port and exit through the diffusion membrane typical configuration for calibration Flow rate of 100cc Min required n Line Fiter 100cc Min Fig 3 Diffusion Filter 7G03 F Flow Through Type this is the optional type The diffusion membrane is replaced with a non permeable seal The two flow ports can be used for flow through s2. ZG03 CO2 Module ZG03 CO2 Module User Manual ZyAura ZyAura a world class leader and supplier of IR sensor technology and temperature measurement devices Small Compact CO2 Module Designed to Integrate Into Existing Controls and Equipment The ZG03 CO2 Module is designed to meet the volume cost and delivery expectations of HVAC All units are factory calibrated ZyAura Monitor the invisible ZG03 CO2 Module Contents gi allQc e M S jew P CUI OIN PTT landline Dip Switch silio m Outp t PEOOCO P ZyAura Monitor the invisible ZG03 CO2 Module Features Dual Beam NDIR Specification An affordable CO2 sensing solution for HVAC DCV UART and DAC output CO2 Temp output RH function optional Diffusion or Flow Through type is selectable sNGC function CAuto Calibration function Method Dual Beam NDIR Non Dispersive Infrared Sampling method Diffusion or Pumped Flow 50 200ml min mPerformance CO2 Measurement Range Accuracy Repeatability Temperature Dependence Pressure Dependence Response Time 0 3 000 ppm display 2000ppm 5000ppm 10 000ppm are optional 70 ppm or 5 of reading 20 ppm Typ 0 2 of reading per C or 2 ppm per C whichever is greater re
3. ampling Flow rate of 100cc Min required n Line Fite 100cc Min Fig4 Flow Through Note 1 Before using this module the In Line Filter must be fixed on the Air cell In Line Filter is not the accessories of the standards ZyAura will not offer otherwise the dust will cause the deviation 2 While power on the positive and negative pole must be connected right otherwise the sensor will burn out Warning This ver User manual is the temporary one please refer to the www ZyAura com for updated version ZyAura Monitor the invisible
4. ature AVOUT CO2 Data of SPIr No connect No connect No connect Clock of SPIr 10 TDX UART 11 RDX UART 12 GND OAANDMNBRWNK Dip Switch Definition On Table 1 1 NA 2 sNGC if the third code switch is ON RH if the third code switch is OFF Temp 3 Temp RH DAC output when the code switch is ON RH when the code switch is OFF Temp 4 NA Note of sNGC After changing status of sNGC the machine should be restarted otherwise the outcome of CO2 will be influenced considerably Function enable of sNGC Please dial the second code switch to ON and open the sNGC Function otherwise the sNGC Function will close i ZyAura Monitor the invisible ZG03 CO2 Module Output protocol UART This protocol is default The digital output is standard UART its baud rate is 19200 check bit none Data bit 8 bit stop bit 1 CO2 ItemCode is lt P gt and Temperature ItemCode is lt B gt Notes The UART of this sensor is compatible with 3 3 Vdc CMOS level specification ZG03 need a External UART to RS232 transmitter to connect PC Port Settings Port number Baud rate 19200 Data bits Parity Stop bits Flow control None v _ There are 2kinds output mode one is Master Mode the other is Slave Mode Under Slave Mode User need send the command to get the CO2 and temperature reading Read CO2 concentration Read the gas ppm as measured by the sensor Respo
5. ferenced to 25 C 0 13 of reading per mm Hg Corrected via user input for altitude About 40sec for 90 of step change Warm Up Time lt 60 seconds m Performance Temperature Temperature Range 32 to 122 F 0 to 50 C Accuracy 2 F 41 C When the fan blows to the device directly the accuracy of temperature is 1 5 C Response Time 20 30 minutes case must equilibrate with environment m Performance RH Optional default is null Measurement Range 20 90 RH Accuracy 5 RH 23 C Response time About 5 min for 63 of step change m Operating Conditions Operating conditions 32 F to 122 F 0 C to 50 C 0 to 95 RH non condensing Storage conditions 4 F to 140 F 20 C to 60 C mPower Supply and Output Power Supply SVDC supply 5 Ripple and Noise mVp p 200 Power Consumption Max 200mA average 20mA Analogue Output 0 4VDC Temperature RH CO2 are independent channel RH and Temp are the same channel optional by Jumper Storage conditions 4 F to 140 F 20 C to 60 C UART Baud Rate 19200 Check Bit None Data Bit 8 bit Stop Bit 1 Digital Output SPIr output Special output S ZyAura Monitor the invisible ZG03 CO2 Module Pin Function 5 VDC input power GND AVOUT Temperature or RH depends the Jumper default is temper
6. nse is a2 byte Decimal value giving the ppm Send 23 31 30 0D Possible Reply 1578 for PPM 1578ppm Read Temp Read the Ambient temperature degC as measured by the sensor Response is a2 byte Decimal value giving the degC Send 23 31 31 0D Possible Reply 2266 for Ambient temperature 22 66degC Notes The sample may be output degC or degF Above sample is degC Under Master Mode that s the default setting The device will send out the CO2 concentration and temperature continuously The format of message is Item MSB LSB Sum CR ZyAura Monitor the invisible ZG03 CO2 Module Item B 42h Tobj Temperature of Obj MSB 8 bit Data Msb LSB 8 bit Data Lsb Sum Item MSB LSB SUM CR ODh end of the message For example The CO2 ItemCode is P If received message 02 50 30 33 32 30 37 33 OD that means P0320 CO2 concentration is Hex2Dec 0320 800ppm The Temperature ItemCode is B If received message 02 42 31 32 38 30 44 34 OD that means B1280 Temperature is Hex2dec 1280 16 273 15 22 85degC The RH optional ItemCode is A if received message 02 41 31 31 44 35 32 37 OD that means ATIDS the actual RH is Hex2Dec 11D5 10000 46 Notes The No 2 of Dip Switch must be ON Otherwise the output protocol will be SPIr Timing of SPIr is below This protocol is for factory calibration CLOCK DATA C sz nX bs X iA na X n2 X piX lbo X bz X bo 500us Byte 0 Byte 1
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