LGDF200 A CH4
8Pages

axetris* Company of the Leister Group INFRARED SOURCES MASS FLOW DEVICES LASER GAS DETECTORS MICRO-OPTICS axetris@axetris.com www.axetris.com Product Datasheet Laser Gas Detection OEM Modules LGD F200-A CH4 1 General description 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 diverse industries. The LGD F200 series is based on a contactless, near-infrared absorption measurement of the target gas. The systems are self-contained, ready-to-use OEM modules, using a flowthrough cell set-up for extractive measurements. The slightly bigger LGD F200 (H) version features optional cell heating up to 190°C for hot gas measurements in process control and environmental compliance related applications. The system has micro-processor-driven readout electronics and digital and/or analog data outputs for industry-standard connectivity. Proprietary electronic lock-in technology allows separating gas absorption information from electro-optical system information, eliminating the need for a physical reference channel and providing continuous sensor status monitoring. Low maintenance operation and long life time provide customers with exceptionally low cost-of-ownership and make the LGD F200 the ideal instrument for your OEM applications. Main applications • Process control: SCR, incineration & combustion processes • Emission monitoring: Power generation, engine development, waste incineration furnaces, ... • Environmental monitoring: Landfill & green-house gases, livestock, ... Key features • Made for easy integration by OEMs • Optical, contact-less measurement • Accurate laser-diode electro-optics • High selectivity • Fast response • Self-contained • Continuous sensor status monitoring • Low maintenance • Low cost-of-ownership • Digital and analog output • Chemical engineering: Production control & monitoring . • Safety: Leak detection, refrigeration, toxic gases, . • Climate control & monitoring: Livestock, climate chambers & rooms, ..

axetris Company of the Leister Group 2 Hardware specifications 2.1 Gas detection specifications Important: Reference conditions, external: 20°C, 1013 hPa, 45% r.H. Parameter Unit Value / Range Gas Principle of detection Measuring range Zero drift3 over 2 h period Span drift4 over 8 h period Max. error on temp. comp. - Tunable Diode Laser Spectrometry (TDLS) calibration to full scale (FS) range, standard is 100 ppm, (possible up to 40'000 ppm, no warranty of precision) - ± 2% full scale reading depending on integration stability (temperature & pressure) ppm 1.0 @ 1 s...

_ • ® axetris Company of the Leister Group Unit Value / Range Usage Maximum operating temperature range Operating humidity Operating pressure Storage temperature Storage humidity Parameter Unit Value / Range Measurement cell - Flow-through set-up Standard cell length mm 200 Std. optical path length mm 400 Standard cell volume mL 15 Maximum measurement mL / min 5’000 (1 ’000); std. calibration carried out at 3’000 gas flow (Minimum) Dimensions housing, mm3 340 x 107 x 78 ambient (A) version: Approx. weight, ambient kg 1.9 (A) version Inlet /...

Parameter Unit Value / Range Digital I/O RS232 dig. Analog output Current output mA Voltage output V Protocol available; standard On request only _ • ® axetris Company of the Leister Group 4...20, 12-bit resolution (on 0 ... 25 mA); standard 0...5, 12-bit resolution; on request upon order Customer definable 3.1 System Power / User interface connector assignments Connector assignment: VCC RELAY GND* ALANALOG GND* ALANALOG OUT Power supply 10 ... 30V Power supply ground DB 15 Connector - Housing Ground serial communication UART serial communication UART serial communication I2C...

Figure 2: General view of the LGD F200 (A) sensor. Figure 3: Side view, with gas connectors. Dimensions in mm. Product Datasheet -

Figure 4: Front view. Dimensions in mm. Figure 5: Top view. Dimensions in mm. Product Datasheet -

_ • ® axetris Company of the Leister Group 5 Mechanical interface The module is equipped at its front & back end with mounting brackets. The brackets can be fixed in four different 90° rotated positions. To increase vibration and shock protection Axetris provides rubber fixations that can be mounted between the brackets and the instrument mounting location. 6 Gas Conditioning and filtering Due to the multitude of applications for the LGD, gas conditioning and filtering has to be carried out by the integrating Original Equipment Manufacturer (OEM). The following points are crucial in order...

Company of the Leister Group 8 Factory calibration The LGD F200 are factory calibrated to customer specifications. In some cases a more specific customer calibration might be needed where complicated measurement conditions or complex gas matrices are present. In this case the customer might proceed to perform his own calibration of the system. Systematic differences between the factory calibration set-up and the customer measurement/calibration set-up can be handled with an off-set and gain adjustment of the sensor. 9 Installation instructions Questions related to the user interface,...