OEM Gas Sensing Module LGD Compact-A Series
15Pages

LASER GAS DETECTION axetris@axetris.com www.axetris.com Suited for ambient gas measurement applications Optical, laser-based and contactless measurement High selectivity and long-term stability Fast response time Compact and self-contained design permitting quick integration by OEMs Digital and analog data interfaces, digital outputs Continuous sensor status monitoring Power supply 3.6 - 5 VDC and 10-30 VDC Low power consumption for battery-powered applications Low cost-of-ownership Leak Detection: portable instruments, static measurement stations, vehicle-mounted, underwater, refrigeration, toxic gases, ... Environmental & Climate Monitoring: landfill, greenhouse gases, biogas, livestock, underwater research Medical Applications related to Breath Analysis gastrointestinal diseases, lung cancer detection • Various Applications: gas analysis, control and monitoring in various sectors such as industrial, chemical, automotive, semiconductor, agricultural, ... Product Datasheet Preliminary DS LGD Compact-A RevD Page 1 of 15

_ • ® axetris Company of the Leister Group 2 Execution Specifications 2.1 Gas detection specifications for LGD Compact-A CH4 Reference conditions (if not otherwise specified): operating temperature 20°C, pressure 1013 hPa and humidity 45% r.H., power supply 10-30 VDC Product Datasheet Preliminary DS LGD Compact-A RevD Page 2 of 15 Lowest Detection Limit: (LDL): The LDL is defined as 2 times the standard deviation o evaluated over a time period of a 2 min measurement at stable reference conditions with set point 0 ppm. The LDL of the system can be improved by mean of averaging. Averaging...

Company of the Leister Group 2.2 Gas detection specifications for LGD Compact-A CH4/C2H6 Reference conditions (if not otherwise specified): operating temperature 20°C, pressure 1013 hPa and humidity 45% r.H., power supply 10-30 VDC Value / Range Tunable Diode Laser Spectroscopy (TDLS) Measuring range (Full Scale) (Full Scale) Sampling rate dual gas mode Sampling rate single gas mode Cross interference Gas matrix and application dependent 0 to 40 Examples for C2H6 detection in CH4 gas matrix C2H6 Product Datasheet Preliminary DS LGD Compact-A RevD Page 3 of 15 Lowest Detection Limit: (LDL):...

_ • ® axetris Company of the Leister Group Product Datasheet Preliminary DS LGD Compact-A RevD Page 4 of 15 10 Lowest Detection Limit: (LDL): The LDL is defined as 2 times the standard deviation o evaluated over a time period of a 2 min measurement at stable reference conditions with set point 0 ppm. The LDL of the system can be improved by mean of averaging. Averaging time: An exponential moving average (EMA) is applied on measured concentration values. The averaging time expresses the period of time of past measurements considered to compute the next averaged value. The averaging time can...

_ • ® axetris Company of the Leister Group 14 H2O Range: depending on operating temperature, non-condensing conditions required in any case. 15 Lowest Detection Limit: (LDL): The LDL is defined as 2 times the standard deviation o evaluated over a time period of a 2 min measurement at stable reference conditions with set point 0 ppm. The LDL of the system can be improved by mean of averaging. 16 Averaging time: An exponential moving average (EMA) is applied on measured concentration values. The averaging time expresses the period of time of past measurements considered to compute the next...

_ • ® axetris Company of the Leister Group 19 H2O Range: depending on operating temperature, non-condensing conditions required in any case. 20 Lowest Detection Limit: (LDL): The LDL is defined as 2 times the standard deviation o evaluated over a time period of a 2 min measurement at stable reference conditions with set point 0 ppm. The LDL of the system can be improved by mean of averaging. 21 Averaging time: An exponential moving average (EMA) is applied on measured concentration values. The averaging time expresses the period of time of past measurements considered to compute the next...

_ • ® axetris Company of the Leister Group 24 For application specific temperature ranges please see the specifications in chapter 2 Product Datasheet Preliminary DS LGD Compact-A RevD Page 7 of 15

_ • ® axetris Company of the Leister Group Product Datasheet Preliminary DS LGD Compact-A RevD Page 8 of 15

_ • ® axetris Company of the Leister Group Description Power Supply Power supply ground Digital Interface Ground serial communication UART serial communication UART serial communication Digital Alarms (relay) On/Off signal at defined conditions for relay control, hardware watchdog, etc. On/Off signal at defined conditions for relay control, hardware watchdog, etc. HW watchdog, firmware error and warnings Relay power supply: 10 V < Vcc Relay < 30 V; max. 0.75 A Ground, relay alarms Analog Interface ANALOG GND* Analog ground 10 ANALOG OUT Analog output Factory setting: current output...

_ • ® axetris Company of the Leister Group Power Supply Power supply input for mainboard (3.6 - 5V) Power supply input for mainboard (3.6 - 5V) Power supply output 3.3V from mainboard to drive digital hardware on interface board; not used in case of removing the interface board Digital Interfaces UART serial communication TTL-Level UART serial communication TTL-Level Digital 13 ALARM 1 Signal for alarm 1 from Microcontroller, contact Axetris if Alarms needed 15 ALARM 2 Signal for alarm 2 from Microcontroller, contact Axetris if needed 14 ALARM 3 Signal for alarm 3 from Microcontroller,...

_ • ® axetris Company of the Leister Group Connector assignment J3 The connector assignment of J3 is identical to J1 (refer to section 4.1) except the additional pin 16 which is not used. Description n/a Product Datasheet Preliminary DS LGD Compact-A RevD Page 11 of 15

Product Datasheet Preliminary DS LGD Compact-A RevD Page 12 of 15

_ • ® axetris Company of the Leister Group Product Datasheet Preliminary DS LGD Compact-A RevD Page 13 of 15