ALPHASENSE USER MANUAL LED CO2 NDIR Sensor Evaluation Kit
Contents
1. temperature T is a measure of the ambient temperature O is a measure of the optical signal strength Z is the CO2 gas concentration in pom 10 For general measurements only the CO2 gas concentration measure need be used The other outputs are available for fine calibration for specific applications This output can be viewed on a general communication application eg Hyperterminal Temperature Range 0 to 45C Measurement Range 0 5 Dimensions Sensor support PCB 40mm x 25mm Sensor 20mm diameter 16mm height im DH ii E R We BR 2 ol ttt Gell a 20665 REX 7122 HB 518031 Fig O755 83680810 83680820 83680830 83680860 EA 0755 83680866 itt www apollaunion com AR Sales apollounian com LED CO NDIR Sensor Evaluation Kit 072 0139 Issue 1 Molex connector on sensor support PCB Pin Factory calibration use only Serial Transmit NB inverted Serial Receive NB inverted 8 N C Factory calibration use only 9 N C Factory calibration use only _ 10 GNDO OV S OV Apollo Page 2 w M h M E kh WR Be a HEHE Beal RA p e2060 EEATT 12E Fis 0755 83680810 83680820 83680830 83680860 WH www apollounion com Abd 518031 A 0755 836803866 WR sales apollounion com2. Apollo ALPHASENSE USER MANUAL Page 1 LED CO NDIR Sensor Evaluation Kit 072 0139 Issue 1 Evaluation Kit comprises 1 single Channel NDIR CO2 sensor and support PCB 1 Evaluation board The single channel sensor is a complete gas sensor for COs requiring only the addition of a display computer connection and a regulated 5VDC power supply Operation The unit can be powered from a PP3 9V battery or from an external power supply The sensor will drift if the supply voltage drops too low therefore it is recommended that an external power supply between 9V and 15V is used Switch on the unit The LED will light and the LCD display will light During the first 10 seconds the unit will self zero This will zero the unit to the ambient conditions during switch on e The COs Evaluation PCB will update the display and serial output approximately once per second e The unit should be zeroed by pressing button S4 on the Demo board e lf required the LCD brightness can be varied by adjusting the brightness control Power supply 9V PP3 battery or 9V 15V DC external supply Power consumption Sensor and support PCB 20mA typical 5V Peak current 200mA Evaluation Board 45mA 9V LCD display of gas concentration Serial Output 9600 baud 8 bit no parity 1 stop bit No hardware flow control only RX TX and GND The output has the following format V 12345 T 12345 O 12345 Z 12345 lt CR lt LF gt In which V is a measure of the sensor
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