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Axetris LGD Compact Operation And Integration Instructions

Laser gas detection, oem module
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Operating & Integration Instructions
Laser Gas Detection
OEM Module
LGD Compact

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Summary of Contents for Axetris LGD Compact

  • Page 1 Operating & Integration Instructions Laser Gas Detection OEM Module LGD Compact...
  • Page 2 Foreword Dear customer, we thank you for acquiring an Axetris LGD Compact laser gas detection module. Please read this document carefully and entirely, to professionally install and operate your device. Axetris laser gas detection modules are manufactured with extreme attention and the highest quality standards to offer you the best performance for full benefit in your application.
  • Page 3 Risque de brûlure ! Ne pas toucher les raccords de gaz Les réparations doivent exclusivement être effectuées ni le boîtier lorsqu’ils sont chauds. Laisser refroidir par un centre de service Axetris agréé. l’appareil. Lors de la mesure de concentrations potentiellement L’ensemble des informations et avertissements fournis...
  • Page 4 Sin certificación ATEX. Indicación Peligro de quemaduras. No toque las conexiones de gas Solo los puntos de servicio técnico Axetris están ni la carcasa si están calientes. Dejar que el equipo se autorizados a realizar reparaciones en el dispositivo.
  • Page 5 가동해야 합니다. 본 시스템은 폭발 환경에서 사용하지 말아야 합니다. ATEX 인증 안됨. 주의사항 수리는 반드시 인증된 Axetris 서비스 대리점을 통해 화상위험! 가스 연결부 및 하우징은 가열된 상태에서 접촉하지 마십시오. 이런 경우 장치를 냉각시키십시오. 실시해야 합니다. 잠재적 위험이 있는 유독 가스 농도를 측정하는 경우, 사용설명서에...
  • Page 6 Throughout the text, warning and information notes in red, as shown below, inform the user about crucial points to observe. These warnings and informational notes must be followed scrupulously and Axetris AG takes no responsibility for any personal injury, death or any damage to equipment or property resulting from not observing these indications.
  • Page 7  Read all instructions carefully before using the device.  The LGD Compact gas sensor OEM-modules are not designed to sense liquid flow and damage will result if liquid is passed through the sensor.  Gas loaded with particles will eventually contaminate the optics and affect the performance of the sensor.
  • Page 8 Index GENERAL USER INFORMATION ......................10 LGD Compact introduction ......................10 General Specifications ........................10 1.2.1 Environmental conditions ...................... 10 1.2.2 Mechanical characteristics ....................11 1.2.3 Electrical characteristics ......................11 1.2.4 Data interface ........................12 Measurement software / Customer Frontend ................12 SYSTEM SET-UP FOR EVALUATION ....................
  • Page 9 Troubleshooting ..........................40 IMPORTANT DISCLAIMER / NOTICE ....................41 FCC STATEMENT ..........................41 ANNEX ................................. 42 Status, Warning and Error Code Listing for Evaluation ................42 Examples for Analog Output Adjustments ..................... 44 Axetris AG LGD_Compact_Operating and Integration Instructions RevF 9/46...
  • Page 10 Axetris` homepage. 1.2 General Specifications The LGD Compact Series Generation 1, in the phase out process until end of 2023 is progressively replaced by the Generation 2, that brings some integration improvements. This document describes both Generations focusing on the gaps between both versions.
  • Page 11 Voltage supply without 3.7 – 5 (no inrush current limitation) interface board; min. - max. ≤ 1 at T 20°C Power consumption (Up to 3 W in extreme conditions) Start-up time ≤ 30 Axetris AG LGD_Compact_Operating and Integration Instructions RevF 11/46...
  • Page 12 No protection implemented 1.3 Measurement software / Customer Frontend There is a measurement software / Customer Frontend available for download on the Axetris` homepage. https://www.axetris.com/en The LGD Customer Frontend is a .NET application providing a user interface to LGD modules using the LGD communication driver.
  • Page 13 Relevant Operation & Storage conditions as described above as well as in the Product Datasheet need to be respected for shipment. In case of a return Axetris AG will not be responsible for shipping damage because of improperly packaged systems and recommends customers to ship systems insured for full value.
  • Page 14 2.2.1.1 Sensing module The LGD Compact-A module has 2 x M4 threaded mounting holes located on the side (see Figure 2, recommended to use two pan head cap screw M4x16 (1.5 Nm) for mounting). For gas supply there are straight/angled QSML-M5-4 quick connectors for 4 mm diameter tubes.
  • Page 15 2.2.2 Generation 2 Same as for Generation 1, the LGD Compact-A module Generation 2 has 2 x M4 threaded mounting holes located on the side (use two pan head cap screw M4x16 (1.5 Nm) for mounting). For gas supply there are...
  • Page 16 Remark: Generation 2 has a stappled boards inside the housing, but connections are the same as Generation 1. Figure 6 Electronics housing LGD Compact-A Generation 2: interface board (up), main board (down) Basic product execution Figure 7 Generation 2 LGD Compact-A module Basic Execution...
  • Page 17 Please avoid starting-up or restarting a computer when the LGD is connected to the serial interface or through a USB port. Position the LGD Compact module at the location where the measurement will be conducted and where computer, power supplies and gas delivery systems can be installed. For customer support and system service it is ideal if the computer also can be connected to the internet.
  • Page 18 D-Sub 15 Connector – Housing Digital GND* Ground serial communication Interfaces RS232 TX UART serial communication RS232 RX UART serial communication Digital ALARM 1 On/Off signal at defined conditions for relay control, Alarms hardware watchdog, etc. Axetris AG LGD_Compact_Operating and Integration Instructions RevF 18/46...
  • Page 19 Table 2 Connector assignment 16pol Micromatch additional pin 16 Name Description Not used 2.4.3 Micromatch connector J5 (20pol) Figure 15 Connector assignment Micromatch 20pol Ordering number receptacle:  Manufacturer: TE connectivity  Description: MICRO-MATCH MOW.20P  Article number: 9-215083-0 Axetris AG LGD_Compact_Operating and Integration Instructions RevF 19/46...
  • Page 20 TXD TTL UART serial communication TTL-Level Interfaces RXD TTL UART serial communication TTL-Level Digital ALARM 1 Signal for alarm 1 from Microcontroller, contact Axetris if Alarms needed ALARM 2 Signal for alarm 2 from Microcontroller, contact Axetris if needed Analog DAC ANALOGOUT Analog output signal (0…2.5V) from Microcontroller, contact...
  • Page 21 Table 6 Supply voltages and output signals with/without interface board Supply Voltage RS232 Communication Analog Output High High With interface 10-30V -12V +12V board 20mA Without 3.7 - 5V (Pmax 0...0.4V 2.4…3.3V (TTL) 2.5V interface board = 1.6W) (TTL) Axetris AG LGD_Compact_Operating and Integration Instructions RevF 21/46...
  • Page 22 2.5 Gas conditioning and filtering information The LGD Compact Gas Sensor OEM-modules are based on an optical measurement technique where performance is linked to optical transmission through the measurement cell. Sample gas containing particles and aerosols are likely to contaminate the optical windows of the measurement cell and degrade the optical transmission more or less quickly.
  • Page 23 U or I , normalized by its physical unit and N is the normalized value of U is the lower value of the pair C and C is the higher one. Axetris AG LGD_Compact_Operating and Integration Instructions RevF 23/46...
  • Page 24 When measuring potentially dangerous concentrations of toxic gases (CH4 C2H2, etc.), properly vent the exhaust of the device to a safe area. Improper venting of the exhaust may cause severe injury. Axetris AG LGD_Compact_Operating and Integration Instructions RevF 24/46...
  • Page 25 3.1 Integration options To facilitate the integration of the LGD Compact-A sensor module the electronics housing as well as the interface board can be removed, and the module can be operated with the main board only. In this case, an...
  • Page 26 3.1.1 With electronics housing The shielding of the electronics and the LGD Compact-A sensor module Generation 1 is realized as shown in Figure 20 Figure 20 Shielding concept with electronics housing Remark: Generation 2 has a stappled boards inside the housing, but connections are the same...
  • Page 27 The cable shield from the sensor module has to be connected to the earth potential.  The four marked screws (see Figure 24) have to be connected to the same earth potential. Axetris AG LGD_Compact_Operating and Integration Instructions RevF 27/46...
  • Page 28 3.1.4 Instructions for cable packaging The LGD compact module Generation 1 will be delivered with an electrical cable from sensor housing to electronic boards. The EMC conformity tests were done with the cable packaging M12 straight D sub 200 mm shielded (Phoenix Contact 1430200).
  • Page 29 The data transfer is based on packets constituted of a multiple of 8 Bytes. The general structure for data transmission to the device is given in Table 7 and an example is given in Table 8. Axetris AG LGD_Compact_Operating and Integration Instructions RevF 29/46...
  • Page 30 Additional zeros to reach multiple of 8 Checksum End of packet } Command Response Analog to the structure, the packets have the same general format and are given in Table 9, with an example in Axetris AG LGD_Compact_Operating and Integration Instructions RevF 30/46...
  • Page 31 See Annex A and B Data Additional zeros to reach multiple of 8 n - 1 Check sum Check sum (sum from 1 to n-1 = 0) “}” End of the packet Axetris AG LGD_Compact_Operating and Integration Instructions RevF 31/46...
  • Page 32 For long commands (< 64 bytes), two successive bytes should not be separated by more than 200 ms, but a maximal time of 500 ms is allowed for the full packet. If this occurs, errors are issued and the packet should Axetris AG LGD_Compact_Operating and Integration Instructions RevF...
  • Page 33 End of packet close brace } 1 Byte  Floats are coded based on IEEE754 - tools can be used under http://www.binaryconvert.com/convert_float.html to convert them. (Bytes order should be reverted “Little endian.”) Axetris AG LGD_Compact_Operating and Integration Instructions RevF 33/46...
  • Page 34 Integer 8 (1 byte) Checksum hardware Integer 8 (1 byte) Checksum update  Version After power-on the device will send this -packet only once. This also indicates a start up / reset. Axetris AG LGD_Compact_Operating and Integration Instructions RevF 34/46...
  • Page 35 51 – 54 00 00 00 00 Diagnostic Mode (1 = active / 0 = inactive) (here 0) For further details about Diagnostic mode, contact Axetris AG. 55 – 58 00 00 00 00 Reserved variable for future use (dummy) 59 –...
  • Page 36 51 – 54 00 00 80 3F Diagnostic Mode (1 = active / 0 = inactive) (here 1) For further details about Diagnostic mode, contact Axetris AG. 55 – 58 00 00 00 00 Reserved variable for future use (dummy) 59 –...
  • Page 37  For the execution LGD Compact CH4/C2H6 it is important not to send Save to EEPROM command when changing the Measurement Mode from single gas to dual gas measurement to avoid a shorter a lifetime due to limited writing cycles of the EEPROM.
  • Page 38 ( {D…} ). The D-packets are for internal use only and can only be monitored while working with the Axetris Customer Frontend (they can be ignored by the customer in standard device operation). When quitting the Axetris Customer Frontend to work with the LGD module Communication Protocol, the device stops sending D-packets.
  • Page 39 4 MAINTENANCE AND TROUBLE SHOOTING 4.1 Maintenance The Axetris LGD Compact gas sensor OEM-modules will not require routine maintenance when the installation and operation instructions described in this document are carefully applied. The surface of the instrument can be cleaned with a soft tissue and the use of isopropyl alcohol. Any gas filtration and conditioning equipment must be checked and replaced periodically according to manufacturer specifications.
  • Page 40 The correct serial port is set on start-up  If the LGD Compact measurements do not correspond to the expected values, please check that the sensor is used within the specified operation and calibration range. After verifying the factors above, follow the troubleshooting procedures outlined here below:...
  • Page 41 No obligation or liability to recipient or any third-party shall arise or flow out of Axetris rendering of technical or other services.
  • Page 42 0xE3 not interrupt PeakCheck process: Distance between gas1 and gas2 out 0xE4 of range Sensor line-locking not secured Contact Axetris customer support if 0xEE problem persists 0xEF End of life The sensor will soon be out of service Opticalhead's temperature out of range Check if ambient temperature is within specified range.
  • Page 43 Customer & application specific parameter User can change Alarm 1 level Alarm 2 out of defined limit Sensor working correctly. 0xFF Customer & application specific parameter User can change Alarm 1 level Axetris AG LGD_Compact_Operating and Integration Instructions RevF 43/46...
  • Page 44   Span       Offset For this example, the sensor parameters to type into the interface are:  AnalogOut_Min_Conc:  AnalogOut_Max_Conc: -0.25  AnalogOut_Offset: 0.01  AnalogOut_Span: Axetris AG LGD_Compact_Operating and Integration Instructions RevF 44/46...
  • Page 45 Electrical equipment, accessories and packaging should be recycled in an environment friendly way. When you are disposing of our products, please observe the national and local regulations. For EU countries: Do not dispose of electrical equipment with household refuse. Axetris AG LGD_Compact_Operating and Integration Instructions RevF 45/46...