Product Datasheet OEM Gas Sensing Module LGD Compact-A Series
15Pages

_ • © axetris Company of the Leister Group LASER GAS DETECTION | MASS FLOW DEVICES | INFRARED SOURCES | MICRO-OPTICS Axetris AG | Schwarzenbergstrasse 10 | 6056 Kaegiswil | Switzerland phone: +41 41 662 76 76 | fax: +41 41 662 75 25 | axetris@axetris.com | www.axetris.com Axetris is offering Laser Gas Detection (LGD) modules with exceptional advantages and value for the customer. Tunable Diode Laser Spectrometry (TDLS), enhanced by proprietary technology, is used for the measurement of CO2, NH3, CH4, HCl, (H2O). The modules are designed for integration by Original Equipment Manufacturers (OEMs), active in the field of gas detection and monitoring in various industries. The LGD Compact series allows the measurement of target gas, based on contactless, near-infrared absorption. The modules come with a flow-through cell set-up for extractive measurements and are self-contained, ready-to-use. The proprietary lock-in technology as well as the onboard digital signal processing unit runs algorithms compensating drift phenomena and providing reliable and stable measurements over time as well as enhanced detectivity. The OEM modules include an analog and digital data interface as well as digital outputs for state-of-the art industrial connectivity. Low maintenance during operation and long lifetime provide customers with exceptional low cost-of-ownership and make the LGD Compact series the ideal solution for your OEM gas sensing applications. • Suited for ambient gas measurement applications • Optical, laser-based and contactless measurement • High selectivity and long-term stability • Fast response • 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 Main applications • 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 LGD Compact-A Rev. A Page 1 o

_ • © 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 LGD Compact-A Rev. A Page 2 of 15 Lowest Detection Limit: (LDL): The LDL is defined as 2 times the standard deviation o 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)...

_ • © axetris Company of the Leister Group Product Datasheet LGD Compact-A Rev. A Page 3 of 15 Lowest Detection Limit: (LDL): The LDL is defined as 2 times the standard deviation a 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 be set up to 600 s. Precision: The precision...

_ • © axetris Company of the Leister Group Product Datasheet LGD Compact-A Rev. A Page 4 of 15 Lowest Detection Limit: (LDL): The LDL is defined as 2 times the standard deviation a 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 be set up to 600 s. Precision: The precision...

_ • © axetris Company of the Leister Group Product Datasheet LGD Compact-A Rev. A Page 5 of 15 Lowest Detection Limit: (LDL): The LDL is defined as 2 times the standard deviation a 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 be set up to 600 s. Precision: The precision...

_ • © axetris Company of the Leister Group Product Datasheet LGD Compact-A Rev. A Page 6 of 15

_ • © axetris Company of the Leister Group Product Datasheet LGD Compact-A Rev. A Page 7 of 15

_ • © axetris Company of the Leister Group Connector assignment J1Pin Name Description Power 1 POWER IN Power supply 3.6 ... 30V Supply 2 GND IN1 Power supply ground 3SHIELDDB 15 Connector - Housing Digital 6 GND1 Ground serial communication Interface 7 RS232 TX UART serial communication 8 RS232 RX UART serial communication Digital Alarms (relay) 4 ALARM 1 On/Off signal at defined conditions for relay control, hardware watchdog, etc. 5 ALARM 2 On/Off signal at defined conditions for relay control, hardware watchdog, etc. 11 ALARM 3 HW watchdog, firmware error and warnings 12 VCC RELAY Relay...

_ • © axetris Company of the Leister Group Connector assignment J5Pin Name Description Power 1 5V1 Power supply input for mainboard Supply 2 5V1 Power supply input for mainboard 3 3.3V Power supply output 3.3V from mainboard to drive digital hardware on interface board; not used in case of removing the interface board Digital 4 TXD TTL UART serial communication TTL-Level Interfaces 5RXD TTLUART 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...