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Summary of Contents for Axetris LGD Compact
- Page 1 Integration Guide V1.8 Laser Gas Detection OEM Module LGD Compact Axetris AG...
- 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 properly 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.
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Page 3: Important Safety Instructions
Risque de brûlure ! Ne pas toucher les raccords de gaz Les réparations doivent exclusivement être ni le boîtier lorsqu’ils sont chauds. Laisser refroidir effectuées par un centre de service Axetris agréé. l’appareil. L’ensemble des informations et avertissements Lors de la mesure de concentrations potentiellement fournis dans la notice d’utilisation doivent être pris... - Page 4 Sin certificación ATEX. Indicación Peligro de quemaduras. No toque las conexiones de Solo los puntos de servicio técnico Axetris están gas ni la carcasa si están calientes. Dejar que el equipo autorizados a realizar reparaciones en el dispositivo.
- Page 5 본 시스템은 폭발 환경에서 사용하지 말아야 합니다. ATEX 인증 안됨. 주의사항 화상위험! 가스 연결부 및 하우징은 가열된 상태에서 수리는 반드시 인증된 Axetris 서비스 대리점을 통해 접촉하지 마십시오. 이런 경우 장치를 냉각시키십시오. 실시해야 합니다. 잠재적 위험이 있는 유독 가스 농도를 측정하는 경우, 사용설명서에...
- Page 6 Any warranties regarding this product, and as mentioned in the General Terms and Conditions of Axetris AG, are void in the event the system is altered or damaged by the user, not installed, used and serviced according to this document.
- Page 7 Read all instructions carefully before using the device. The LGD Compact gas sensor 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.
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Page 8: Table Of Contents
Index GENERAL USER INFORMATION ......................9 LGD Compact introduction ......................9 General Specifications ........................9 Environmental conditions ....................... 9 Mechanical characteristics ....................10 Electrical characteristics ...................... 10 Data interface........................10 Measurement software / Customer Frontend ................11 SYSTEM SET-UP FOR EVALUATION ....................12 Operation conditions, storage &... -
Page 9: General User Information
1 GENERAL USER INFORMATION 1.1 LGD Compact introduction Axetris’ laser gas detector (LGD), “LGD Compact”, is a system for the continuous monitoring of gases such as CH , C2H6, C2H2 and CO . Based on state-of-the-art Tunable Diode Laser Spectrometry (TDLS), the system has a very high selectivity to the target gas and features an innovative, patented measurement principle without the need for a physical reference channel. -
Page 10: Mechanical Characteristics
0 - 5, 12-bit resolution Digital Alarm Outputs (relay) Relay power supply: 10 V < Vcc Relay < 30 V; max. 0.75 A Various alarm outputs available, for more details refer to the User Manual. Axetris AG LGD Compact Integration Guide V1.8 04.12.2019 10/34... -
Page 11: Measurement Software / Customer Frontend
0.75 A Various alarm outputs available, for more details refer to chapter 2.3 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/lgd/downloads-lgd Three different options are available: 1. -
Page 12: System Set-Up For Evaluation
Default measurement time is roughly 1 s (user changeable to up to 600 s integration time or “averaging”). The LGD Compact has a start-up time of 30 s to give a correct concentration reading. For any shipments of the system it is recommended to retain and re-use the original shipment material, which has been tested and proven to be effective protection. -
Page 13: Sensor Module
Sensor module The LGD Compact-A module has two M4 threaded mounting holes located on the side of the sensor (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 14: Electrical Interfaces
Figure 4 Dimensions of the main board Figure 5 Dimensions of the interface board The electronic main board should be connected to the LGD Compact just with the original cable delivered (recommendations for an own cable design can be seen in chapter 3.1.4). -
Page 15: D-Sub Power Supply And Communication J1 (15Pol, 2 Rows)
Windows may identify the device as a serial mouse and the LGD cannot connect from the interfacing software. Position the LGD Compact module at the location where the measurement will be carried out 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 16: Micromatch Connector J3 (16Pol)
The connector assignment of J3 is identical to J1 (see Table 1) except the additional pin 16 which is not used (see Table 2). Table 2 Connector assignment 16pol Micromatch additional pin 16 Name Description Not used Axetris AG LGD Compact Integration Guide V1.8 04.12.2019 16/34... -
Page 17: Micromatch Connector J5 (20Pol)
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 ALARM 3... -
Page 18: Micromatch Connector J6 (10Pol)
Manufacturer: TE connectivity Description: MICRO-MATCH MOW.10P Article number: 8-215083-0 Table 5 Connector assignment 10pol Micromatch Name Description Measurement PD_I Photodiode signal PD_GND* Laser control Laser_Drive Laser diode Laser_GND Axetris AG LGD Compact Integration Guide V1.8 04.12.2019 18/34... -
Page 19: Supply Voltages And Output Signals
(TTL) 2.4 Gas conditioning and filtering information The LGD Compact Gas Sensor Modules are based on an optical measurement technique where performance is directly 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 20: Calibration / Calibration Verification / Offset And Span
In case of air being used for the zeroing, make sure your device is not measuring CO2 as air may contain few hundreds ppm of CO2 that will lead to a wrong value for the offset. Axetris AG LGD Compact Integration Guide V1.8 04.12.2019 20/34... -
Page 21: Gas Supply
3.1 Integration options In order to facilitate the integration of the LGD Compact-A module into a customer-specific device or instrument, 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 appropriate shielding aiming to avoid signal interferences as well as the EMC conformity has to be fulfilled by the integrating Original Equipment Manufacturer itself. -
Page 22: With Electronics Housing
With electronics housing The shielding of the electronics and the LGD Compact-A module is realized as shown in Figure 15. Figure 15 Shielding concept with electronics housing Figure 16 shielding via mounting screws of electronic housing The shielding connection of the electronics boards and the sensor module is done over the electronics housing. -
Page 23: Without Housing
The cable shield from the sensor module has to be connected to the earth potential. The four marked screws (see Figure 18) have to be connected to the same earth potential. Axetris AG LGD Compact Integration Guide V1.8 04.12.2019 23/34... -
Page 24: Instructions For Cable Packaging
Instructions for cable packaging The LGD compact module will be delivered default with this electrical cable from sensor housing to electronic boards: https://www.phoenixcontact.com/online/portal/ch?uri=pxc-oc- itemdetail:pid=1430200&library=chde&tab=1&requestType=product&productId=1430200 All EMC tests were done with this cable packaging. If this cable cannot be used due to integration issues please be aware of the following recommendations for the cable packaging: •... -
Page 25: Data Transmission Protocol
Figure 21 Pin connection for the Micromatch on LGD compact main board 3.2 Data transmission protocol The LGD sensor has multiple commands to communicate with other devices, like microcontrollers, or with the customer user interface when it is connected to a PC. The following describes the structure of all commands necessary for the integration and use of the sensor. - Page 26 Fehler! Verweisquelle konnte nicht gefunden werden. 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 Integration Guide V1.8 04.12.2019 26/34...
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Page 27: Timing & Rs232-Protocol
If a byte is lost during communication, it will result in a wrong checksum and an error is issued accordingly, with potentially other information, such as, which byte seems wrong, and timeout error for the missing 8 byte. Axetris AG LGD Compact Integration Guide V1.8 04.12.2019 27/34... -
Page 28: Measurement Data Format
E0 AB F4 41 = 30.6 °C (single Precision) 00 00 00 00 zeros to reach packet size multiple of 8 4 Bytes Checksum 1 Byte End of packet close brace } 1 Byte Axetris AG LGD Compact Integration Guide V1.8 04.12.2019 28/34... -
Page 29: Change Of User Parameters
Command in ASCII The response contains the sensor serial number and diverse checksums. The response is 64 bytes long; inside the packet the data has the following structure (see Table 13). Axetris AG LGD Compact Integration Guide V1.8 04.12.2019 29/34... -
Page 30: Stop Measurement (Idle)
Reserved variable for future use (dummy) 00 00 00 00 19 – 22 Reserved variable for future use (dummy) 00 00 00 00 23 – 26 Analog output: Min concentration (here: 0) Axetris AG LGD Compact Integration Guide V1.8 04.12.2019 30/34... -
Page 31: Configure User Data
00 00 00 00 Diagnostic Mode (1 = active / 0 = inactive) (here 0) For further details about Diagnostic mode, contact Axetris AG. 00 00 00 00 55 – 58 Laboratory Mode (1 = active / 0 = inactive) (here 0) For further details about Laboratory mode, contact Axetris AG. -
Page 32: Save To Eeprom
00 00 00 00 51 – 54 Diagnostic Mode (1 = active / 0 = inactive) (here 0) For further details about Diagnostic mode, contact Axetris AG. 55 – 58 00 00 00 00 Laboratory Mode (1 = active / 0 = inactive) (here 0) For further details about Laboratory mode, contact Axetris AG. -
Page 33: Status, Error And Failure Response
( {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 sensor operation). When quitting the Axetris Customer Frontend to work with the LGD Sensor Communication Protocol, the sensor stops sending D-packets. -
Page 34: Declaration Of Conformity
Declaration of conformity Axetris AG, Schwarzenbergstrasse 10, 6056 Kaegiswil, Switzerland confirms that the LGD Compact version fulfils the requirements of the following EU Guidelines in the models that we have made available for purchase. Guidelines: 2004/108/EG (valid till 04/19/2016), 2014/30/EU (valid from 04/20/2016)
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