- \n
- Combustion control<\/li>\n
- Safety monitoring<\/li>\n
- Electrofilter Protection<\/li>\n<\/ul>\n
Industries<\/h6>\n
- \n
- Power industry<\/li>\n
- Steel industry<\/li>\n
- Chemical industry<\/li>\n
- Wood board production<\/li>\n<\/ul>\n
Features<\/h6>\n
- \n
- Process temperature:<\/strong> 0 \u2013 1350\u00b0C<\/li>\n
- Real time sensing:<\/strong> response time below 0.2 second<\/li>\n
- High selectivity: <\/strong>automatic compensation for interference effect from other constituents in the gas sample<\/li>\n
- High sensitivity:<\/strong> detection limits down to ppb range<\/li>\n
- In-situ<\/em> monitoring:<\/strong> direct in the process, no sample preparation<\/li>\n
- Maintenance free<\/strong>: equipped with a self-calibrating feature, no field calibration necessary<\/li>\n
- Robustness<\/strong>: IP66 enclosure, suitable for outdoor and indoor installations and harsh environments<\/li>\n
- Insensitive to dust and smoke<\/strong> in the measured process<\/strong>: up to 50 g\/m3<\/li>\n
- ATEX<\/strong> version available.<\/li>\n<\/ul>\n
Operating principle<\/h6>\n
GasEye Extractive is a laser spectrometer that uses single line molecular absorption spectroscopy. A semiconductor laser emits a beam of infrared light which passes through the process and impinges the detector on the receiver side. When the target gas is present the light intensity changes and this can be used to determine the concentration of the measured specimen. The wavelength of the radiation emitted by the laser is chosen to match the specific absorption line wavelength of the gas. The laser continuously scans this single absorption line with a very high spectral resolution. The measurement is free of cross-interferences since the laser light is absorbed very selectively by only one specific line in the scanned spectral range.<\/p>\n
![\"\"](\"https:\/\/thomsongroup.com.au\/wp-content\/uploads\/2024\/06\/AirOptic_wavelength_scanning_process.webp\")
<\/p>\nINFLUENCES ON THE MEASUREMENT<\/h6>\n
Temperature<\/strong><\/h6>\n
The influence of temperature on the measured absorption line is compensated by internal algorithms. The process gas temperature must be provided as a signal into the instrument. The temperature measurement is used to apply a correction of the temperature on the observed line strength. Temperature compensation is obligatory and without it the concentration output is erroneous.<\/p>\n
Pressure<\/strong><\/h6>\n
The influence of pressure on the measured absorption line is compensated by internal algorithms. The process gas pressure must be provided as a signal into the instrument. For known pressure values, the GasEye Cross Duct spectrometer adapts the line shape. Additionally, an external pressure signal can be fed to the analyzer to provide complete mathematical compensation of the pressure influence including the density effect (depending on a specific application and target gas).<\/p>\n
Interferences<\/strong><\/h6>\n
The GasEye Cross Duct can measure the desired gas components very selectively. It may happen that the absorption line of the measured gas is influenced by the presence of other gases. This influence is compensated by the full shape of the detected signal curve analysis and applying algorithms that correct the discrepancies accordingly.<\/p>\n
SG (Single Gauge)<\/strong>
\nThe GasEye Cross Duct SG (Single Gauge)<\/strong> analyzer consists of a pair of cross-duct sensors \u2013 a central unit with a transmitter and a receiver unit. The central unit emits laser radiation directly through the process containing the constituents of interest. The receiver unit collects the radiation on the other side of the process duct. The receiver unit is connected to the central unit by means of a hybrid loop cable. The GasEye Cross Duct utilizes an internal in-line reference gas cell or a process gas (e.g. H2O) for real-time verification of the calibration status.<\/p>\n![\"\"](\"https:\/\/thomsongroup.com.au\/wp-content\/uploads\/2024\/06\/SG_electrical.png\")
<\/p>\n\n\n
\n Transmitter<\/td>\n<\/tr>\n \n Dimensions:<\/td>\n width x height: 330 mm x 230 mm,
\nlength: 350 mm<\/td>\n<\/tr>\n\n Weight:<\/td>\n 15 kg<\/td>\n<\/tr>\n \n Equipment:<\/td>\n display with status indicators,
\npower indicator,
\n4 cable glands,\u00a0Ethernet socket,
\npurging fittings<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n
\n Receiver<\/td>\n<\/tr>\n \n Dimensions:<\/td>\n width x height: 160 mm x 160 mm,
\nlength: 330 mm<\/td>\n<\/tr>\n\n Weight:<\/td>\n 13 kg<\/td>\n<\/tr>\n \n Equipment:<\/strong><\/td>\n 1 cable gland,
\npurging fittings<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n
\n Protection standard<\/td>\n<\/tr>\n \n Degree of protection:<\/strong><\/td>\n In accordance with IP66<\/td>\n<\/tr>\n \n Process windows:<\/strong><\/td>\n Leak tested and certified in accordance with EN1779:1999 norm.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n <\/p>\n
![\"\"](\"https:\/\/thomsongroup.com.au\/wp-content\/uploads\/2024\/06\/SG_3D_blue_bg.png\")
![\"\"](\"https:\/\/thomsongroup.com.au\/wp-content\/uploads\/2024\/06\/SG_assembly_bg.png\")
![\"\"](\"https:\/\/thomsongroup.com.au\/wp-content\/uploads\/2024\/06\/SG_front_bg.png\")
<\/p>\n<\/p>\n
\n\nSafety<\/h2>\n<\/div>\n<\/div>\n
\n\n\n\n
\n RoHS Directive 2011\/65\/EU<\/strong><\/td>\n <\/td>\n<\/tr>\n \n Low Voltage Directive (LVD) 2014\/35\/EU<\/strong><\/td>\n PN-EN 60825-1:2014-11 \u2013 Safety of laser products \u2013 Part 1: Equipment classification and requirements<\/td>\n<\/tr>\n \n PN-EN 61010-1:2011 \u2013 Safety requirements for electrical equipment for measurement, control and laboratory use \u2013 Part 1: General requirements<\/td>\n<\/tr>\n \n Electromagnetic Compatibility Directive (EMC) 2014\/30\/UE<\/strong><\/td>\n Emission:<\/strong><\/td>\n<\/tr>\n \n EN 55016-2-1:2014+A1:2017 \u2013 Measurements of conducted disturbances emission<\/td>\n<\/tr>\n \n EN 55016-2-3:2017+A1:2019 \u2013 Measurements of radiated disturbances emission<\/td>\n<\/tr>\n \n Immunity:<\/strong><\/td>\n<\/tr>\n \n EN 61000-4-2:2009 \u2013 Electrostatic discharge immunity<\/td>\n<\/tr>\n \n EN 61000-4-3:2006 + A1:2008 + A2:2010 \u2013 Radiated, electromagnetic field immunity<\/td>\n<\/tr>\n \n EN 61000-4-4:2012 \u2013 Electrical fast transient \/ burst immunity<\/td>\n<\/tr>\n \n EN 61000-4-5:2014 + A1:2017 \u2013 Surge immunity<\/td>\n<\/tr>\n \n EN 61000-4-6:2014 \u2013 Immunity to conducted disturbances<\/td>\n<\/tr>\n \n EN 61000-4-29:2000 \u2013 Immunity to voltage dips, short interruptions and voltage variations<\/td>\n<\/tr>\n \n ATEX Directive 2014\/34\/EU<\/strong><\/td>\n EN IEC 60079-0:2018 \u2013 Explosive atmospheres \u2013 Part 0: Equipment \u2013 General requirements<\/td>\n<\/tr>\n \n EN 60079-2:2014 \u2013 Explosive atmospheres \u2013 Part 2: Equipment protection by pressurized enclosure \u201cp\u201d<\/td>\n<\/tr>\n \n EN 60079-11:2012 \u2013 Explosive atmospheres \u2013 Part 11: Equipment protection by intrinsic safety \u201ci\u201d<\/td>\n<\/tr>\n \n EN 60079-26:2015 \u2013 Explosive atmospheres \u2013 Part 26: Equipment with Equipment Protection Level (EPL) Ga<\/td>\n<\/tr>\n \n EN 60079-28:2015 \u2013 Explosive atmospheres \u2013 Part 28: Protection of equipment and transmission systems using optical radiation<\/td>\n<\/tr>\n \n Explosion protection (standard version):<\/p>\n - \n
- ATEX II 3G [Ex op is IIC T6 Gc]<\/li>\n
- ATEX II 3D [Ex op is IIIC T85\u00b0C Dc]<\/li>\n<\/ul>\n<\/td>\n<\/tr>\n
\n Explosion protection \u2013 ATEX Zone 1\/21 (optional version):
\nGasEye Cross Duct Ex1:<\/p>\n- \n
- \u00a0II 1\/2G Ex pxb op is IIC T6 Ga\/Gb<\/li>\n
- \u00a0II 1\/2D Ex pxb op is IIIC T85\u00b0C Da\/Db<\/li>\n<\/ul>\n
GasEye Cross Duct Ex1 IS:<\/p>\n
- \n
- \u00a0II 1\/2G Ex pxb ia op is IIC T6 Ga\/Gb<\/li>\n
- \u00a0II 1\/2D Ex pxb ia op is IIIC T85\u00b0C Da\/Db<\/li>\n<\/ul>\n
GasEye Cross Duct Ex1 ET and GasEye Cross Duct Ex1 ET IS:<\/p>\n
- \n
- \u00a0II 1\/2G Ex db eb h ia ib op is pxb q IIC T4 Ga\/Gb<\/li>\n
- \u00a0II 1\/2G Ex h ia ib op is pxb q tb IIIC T135\u00b0C Da\/Db<\/li>\n<\/ul>\n
Certificate No. KDB 20ATEX0003X EN<\/a>
\nCertificate No. KDB 20ATEX0003X PL<\/a><\/td>\n<\/tr>\n\n Explosion protection \u2013 IECEx Zone 2\/22 (optional version):<\/p>\n - \n
- \u00a0op is pzc IIC T6 Gc<\/li>\n
- \u00a0op is pzc IIIB T85\u00b0C Dc<\/li>\n<\/ul>\n
Certificate No. IECEx KDB 19.0004X<\/a><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/table>\n
- Real time sensing:<\/strong> response time below 0.2 second<\/li>\n
- Process temperature:<\/strong> 0 \u2013 1350\u00b0C<\/li>\n