CO2 Archives - Thomson Environmental Systems https://thomsongroup.com.au/product-tag/co2/ Thu, 26 Jun 2025 04:07:21 +0000 en-AU hourly 1 https://wordpress.org/?v=6.9 https://thomsongroup.com.au/wp-content/uploads/2022/03/cropped-TES_favicon-32x32.png CO2 Archives - Thomson Environmental Systems https://thomsongroup.com.au/product-tag/co2/ 32 32 Model 7500za-7600za https://thomsongroup.com.au/product/model-7500za-7600za/ Thu, 26 Jun 2025 03:48:55 +0000 https://thomsongroup.com.au/?post_type=product&p=21114 The 7500ZA and 7600ZA Infrared (IR) Analyzers are capable of detecting IR absorbing components on a continuous basis. Conveniently packaged in a 19” rack mount, the analyzer can also be supplied with an oxygen sensor, providing the operator with space saving, multi-component analysis, and cost-effective design. Features 4-digit indication, LCD with CFL Backlight Follow & […]

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]]> The 7500ZA and 7600ZA Infrared (IR) Analyzers are capable of detecting IR absorbing components on a continuous basis. Conveniently packaged in a 19” rack mount, the analyzer can also be supplied with an oxygen sensor, providing the operator with space saving, multi-component analysis, and cost-effective design.

Features

  • 4-digit indication, LCD with CFL Backlight
  • Follow & Hold output signal control (during calibration)
  • Remote range change control
  • 85-264 VAC 50/60 Hz power
  • Simultaneous measurement of up to multiple components, one or two ranges each
  • In-depth, valuable analyzer functions attainable from the front panel user interface buttons
  • Range ID signals
  • Instrument or calibration error contact outputs
  • 19” rack configuration with optional slide-out, chassis design to facilitate any optical or maintenance adjustments required to fine-tune analyzer performance.

Applications

  • Emission Gas Analysis
  • Food and Beverage CO2 Analysis
  • Industrial Bulk Gas Analysis.

Download Brochure

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]]> Prismatic 3 https://thomsongroup.com.au/product/prismatic-3/ Tue, 27 May 2025 02:18:00 +0000 https://thomsongroup.com.au/?post_type=product&p=20789 TIGER OPTICS™ Prismatic 3™ laser-based, multi-species trace gas analyzer, provides a critical tool for use in research and industrial applications, where real-time, on-line gas monitoring is essential. The Prismatic 3 is ideally suited for fuel-cell hydrogen purity monitoring throughout the entire hydrogen supply chain—from production to transportation and storage to the fueling station. This compact, […]

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]]> TIGER OPTICS™ Prismatic 3™ laser-based, multi-species trace gas analyzer, provides a critical tool for use in research and industrial applications, where real-time, on-line gas monitoring is essential. The Prismatic 3 is ideally suited for fuel-cell hydrogen purity monitoring throughout the entire hydrogen supply chain—from production to transportation and storage to the fueling station.

This compact, CRDS-based analyzer for the detection of H2O, CO, CO2 and CH4 from parts-per-billion to parts-per-million levels to ensure purity requirements in line with SAE J2719 and ISO 14687:2019.

Prismatic 3 is easy to install and operate with integrated touchscreen and intuitive graphical user interface to allow efficient data trending and analysis. The cost of ownership is extremely low, with no calibration, spare parts or utility gases required.

The Prismatic 3 features:

  • Simultaneous parts-per-billion detection of CO, CO2, H2O and CH4
  • Ideal analyzer to meet Hydrogen purity requirements of SAE J2719 and ISO 14687:2019
  • Powerful Cavity Ring-Down Spectroscopy (CRDS) technology
  • Low Cost of Ownership: no calibration or utility gas requirements
  • Easy to install and use per ASTM Standard Test Method D7941

Applications

  • Air Separation Units & Nitrogen Plants
  • Gas Quality Control
  • Gaseous CRMs & Calibration Gas Mixtures
  • Greenhouse Gas Monitoring
  • High-Purity Gases & Systems
  • Hydrogen Fuel Cells
  • Research & Development

Data Sheet

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]]> MIRA Strato N2O/CO2: UAV/Drone https://thomsongroup.com.au/product/mira-strato-n2o-co2-uav-drone/ Tue, 03 Sep 2024 05:36:50 +0000 https://thomsongroup.com.au/?post_type=product&p=20347 MIRA Strato N2O/CO2 is the highest sensitivity gas analysis tool for UAV/Drone-based environmental monitoring. At just 1.9kgs, this miniature, lightweight, high sensitivity/high accuracy natural gas leak detection system combines a breakthrough, realtime laser absorption spectrometer with built-in GPS capability to produce the World’s most compact, sensitive and powerful leak detection tool. The Strato N2O/CO2 operates […]

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]]> MIRA Strato N2O/CO2 is the highest sensitivity gas analysis tool for UAV/Drone-based environmental monitoring.
At just 1.9kgs, this miniature, lightweight, high sensitivity/high accuracy natural gas leak detection system combines a breakthrough, realtime
laser absorption spectrometer with built-in GPS capability to produce the World’s most compact, sensitive and powerful leak detection tool.
The Strato N2O/CO2 operates in the mid-IR, achieving unparalleled, simultaneous nitrous oxide and carbon dioxide sensitivity at a very low level, resp. <200ppt/s and <200ppb/s . The ability to simultaneously monitor N2O and CO2 in real-time with a portable analyzer enables a wide range of field applications that were previously impractical due to traditional size, weight, power, and cost constraints. Strato Series analyzers representing a paradigm shift in high sensitivity laser-based gas analysis systems.

Key Features include:

  • Superior sensitivity: <200ppt/s N2O , <200ppb/s CO2
  • Real-time analytics, statistics
  • Fast response time
  • Hermetically sealed sensor core keeps optics clean
  • 1 or 2 Hz operation standard, up to 10Hz optional
  • High accuracy GPS, compact antennae
  • Wi-Fi, RS232, data streaming capability
  • Low power consumption, battery or drone powered
  • Robust platform: 100x less sensitive to contamination than “cavity-based” systems
  • Water vapour measured to report dry mole fractions
  • Data in .kml format for viewing in Google Earth.

Download Specifications

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]]> GasEye Extractive https://thomsongroup.com.au/product/gaseye-extractive/ Tue, 18 Jun 2024 03:56:26 +0000 https://thomsongroup.com.au/?post_type=product&p=20185 The GasEye Extractive is a versatile gas analyzing tool for industrial process applications. A process gas sample is continuously fed into the analyzer where it is analyzed in real-time utilizing laser absorption spectroscopy. It can be configured to operate in the near-infrared (NIR), mid-infrared (MIR), and infrared (IR) wavelength range thereby allowing to analyze the […]

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]]> The GasEye Extractive is a versatile gas analyzing tool for industrial process applications. A process gas sample is continuously fed into the analyzer where it is analyzed in real-time utilizing laser absorption spectroscopy.

It can be configured to operate in the near-infrared (NIR), mid-infrared (MIR), and infrared (IR) wavelength range thereby allowing to analyze the majority of gases of interest in the industrial process monitoring.

GasEye Extractive analyzer is assembled in a 19” RACK IP20 or wall-mounted IP66 enclosure.

Applications
  • Safety monitoring
  • Process Control
  • Custody transfer.
Industries
  • Chemical industry
  • Petrochemical industry
  • Food industry.
Features
  • Sample temperature: 0 – 200°C
  • Real time sensing: response time below 1s
  • High selectivity: automatic compensation for interference effect from other constituents in the gas sample
  • High sensitivity: detection limits down to ppb range
  • Maintenance free: equipped with a self-calibrating feature, no field calibration necessary
  • ATEX version available
Most common application
Model: Minimum range: Typical Application:
GasEye Extractive H2O 0 – 5 ppmv Moisture in NG, LNG, H2
GasEye Extractive H2S 0 – 10 ppmv H2S in NG, LNG, H2
GasEye Extractive H2 0 – 10 vol% Hydrogen applications
GasEye Extractive CO/CO2/CH4 CO: 0 – 1 ppmv
CO2: 0 – 2 ppmv
CH4: 0 – 10 ppmv		 Hydrogen purity PSA/PSA+
GasEye Extractive HCOOH/HCHO/NH3 HCOOH: 0 – 1 ppmv
HCHO: 0 – 1 ppmv
NH3: 0 – 1 ppmv		 Hydrogen purity
GasEye Extractive H2/O2 H2: 0 – 10 vol%
O2: 0 – 100 ppmv		 Hydrogen applications
Operating principle

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.

19″ RACK VERSION
 

GasEye Extractive 19″ RACK analyzer is assembled in a standard 19-inch rack 4U version.

It exists in several various configurations from single gas to multi gas applications.

Specification:
Dimensions: width x height: 482 mm x 177 mm
length: 650 mm
Weight: 35 kg (for the model with multipass cell, vacuum pump, and safety valves)
Gas connection: 6 mm tubing
Degree of protection: IP20 to EN 60529
Materials:
Housing: aluminium
Internal process cell: stainless steel 316
Cell window: sapphire
 Climatic conditions
Ambient temperature: 5ºC to 40ºC
Ambient pressure: 800 – 1200 hPa
Ambient humidity: RH < 90%, non-condensing
Measurement conditions
Sample gas pressure: 0.05 – 5 barG
Sample gas temperature: ambient
Sample gas flow: 0.5 – 20 Ndm3/min
Safety:
Low Voltage Directive (LVD) 2014/35/EU PN-EN 60825-1:2014-11 – Safety of laser products – Part 1: Equipment classification and requirements
PN-EN 61010-1:2011 – Safety requirements for electrical equipment for measurement, control and laboratory use – Part 1: General requirements
EMC Directive 2014/30/EU EN 61326-1:2013-6 – Electrical equipment for measurement, control and laboratory use
RoHS Directive 2011/65/EU

 

WALL MOUNTED VERSION

The GasEye Extractive Wall Mounted type analyzer exists in general purpose and hazardous area configuration (version Ex1). It exists in several various configurations from single-gas to multi-gas applications. The system is IP66 rated with ambient temperature ranges from -30ºC to +60ºC and can be mounted outside without a need for a container.

GasEye Extractive Ex1 provides Ex p (purge and pressurization) type of explosion protection. Ex p pressurized equipment is the technique of guarding against the ingress of the external atmosphere into an enclosure by maintaining a protective gas therein at a pressure above that of the external atmosphere. The overpressure is maintained either with or without a continuous flow of the protective gas.

 

Specification:
Dimensions: width x height: 460 mm x 230 mm
depth: 650 mm
Weight: 60 kg
Gas connection: connector 6 mm Swagelok
Materials:
Housing: SS 1.4301 (AISI 304)
Internal process cell: SS 1.4404 (AISI 316L)
Cell window: sapphire
Climatic conditions:
Ambient temperature: -30ºC to +60ºC
Ambient pressure: 800 – 1200 hPa
Ambient humidity: RH < 90%, non-condensing
Measurement conditions:
Precision: +/- 1% of the measured value or LOD and response time 30 sec
Accuracy: +/- 2% of the measured value or LOD and response time 30 sec
Conditioning of the sample: dry, free from oils and particles
Calibration: factory calibration using certified gas
Zero drift and span drift: irrelevant
Sample temperature: 0°C to 200°C (depends on application)
Safety:
Low Voltage Directive (LVD) 2014/35/EU PN-EN 61010 – 1:2011- Safety requirements for electrical equipment for measurement, control and laboratory use
PN-EN 60825 – 1:2014-11- Safety of laser products
EMC Directive 2014/30/EU EN 61326-1:2013-06 – Electrical equipment for measurement, control and laboratory use
RoHS Directive 2011/65/EU
EN IEC 60079-0:2018 – Explosive atmospheres – Part 0: Equipment – General requirements
EN 60079-2:2014 – Explosive atmospheres – Part 2: Equipment protection by pressurized enclosure “p”
EN 60079-26:2015 – Explosive atmospheres – Part 26: Equipment with Equipment Protection Level (EPL) Ga
EN 60079-28:2015 – Explosive atmospheres – Part 28: Protection of equipment and transmission systems using optical radiation
ATEX Directive 2014/34/EU  
Explosion protection (standard version):

  • ATEX II 3G [Ex op is IIC T6 Gc]
  • ATEX II 3D [Ex op is IIIC T85°C Dc]
Explosion protection – ATEX Zone 1/21 (optional version):

GasEye Extractive Ex1:

  • II 1/2G Ex op is pxb IIC T* Ga/Gb
  • II 1/2D Ex op is pxb IIIC T** Da/Db

GasEye Extractive Ex1 ET:

  • II 1/2G Ex db eb h ia ib op is pxb q IIC T* Ga/Gb
  • II 1/2D Ex h ia ib op is tb pxb q IIIC T** Da/Db

*/** temperature class depends on the medium temperature according to:

ID Medium temperature: Ambient conditions: Temperature class: Maximum surface temperature:
1 < 50°C -30°C to 50°C T6 85°C
2 < 100°C -30°C to 60°C T5 100°C
3 < 135°C -30°C to 60°C T4 135°C
4 < 200°C -30°C to 60°C T3 200°C

Certificate No. KDB 20ATEX0056X EN
Certificate No. KDB 20ATEX0056X PL

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]]> GasEye Cross Duct MG (Multi Gas) https://thomsongroup.com.au/product/gaseye-cross-duct-mg-multi-gas/ Tue, 18 Jun 2024 03:12:15 +0000 https://thomsongroup.com.au/?post_type=product&p=20179 GasEye Cross Duct MG (Multi Gas) is a high performance in-situ analyzer that provides analysis for 17 standard gas combinations and can be customised for specific combinations. GasEye Cross Duct MG utilizes tunable diode laser (TDL) absorption spectroscopy. The central unit sends a laser light through the process which is detected by the receiver unit […]

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]]> GasEye Cross Duct MG (Multi Gas) is a high performance in-situ analyzer that provides analysis for 17 standard gas combinations and can be customised for specific combinations. GasEye Cross Duct MG utilizes tunable diode laser (TDL) absorption spectroscopy. The central unit sends a laser light through the process which is detected by the receiver unit mounted on the opposite side of the process. When a gas of interest is present in this process, it will absorb the laser light. The optical power detected in the receiver unit will depend on the concentration of the gas, temperature, pressure, and optical pathlength according to Lambert’s Beer law. Thus in order to determine the gas concentration, the analyzer requires information regarding temperature, pressure, and optical pathlength. Temperature and pressure signals can be provided by analog inputs, via industrial communication protocols, or as manual values via Webserver or HMI.

In the GasEye Cross Duct analyzer, the laser wavelength is specifically chosen to match the fingerprint region of the particular gas of interest and is being continuously scanned over the absorption line(s). Since full spectral information is recovered with very high spectral resolution the analyzer remains immune to foreign gas broadening and is immune to cross-interferences from dust and any other gas constituents in the process. GasEye Cross Duct by design can operate in several wavelength regions from Near-Infrared to Mid-Infrared.

Applications
  • Combustion control (boilers)
  • Safety monitoring
  • Electrofilter Protection.
Industries
  • Power industry
  • Steel industry
  • Chemical industry.
Multi-Gas Combinations
  • CO+O2
  • CO+CO2
  • CO+CH4
  • H2S+O2
  • HCHO+H2O
  • HCOOH+CO
  • HCL+H2O
  • NH3+H2O
  • NO+NH3
  • NO+O2
  • NO+NO2
  • CO+CH4+O2
  • CO+O2+H2O+CH4
  • C2H2+C2H4+C2H6
  • SO2+HCL+NH3+H2O
  • SO2+HCL+NO+H2O
  • SO2+HCL+CO+H2O
Features
  • Process temperature: 0 – 1350°C
  • Real time sensing: response time below 0.2 second
  • High selectivity: automatic compensation for interference effect from other constituents in the gas sample
  • High sensitivity: detection limits down to ppb range
  • In-situ monitoring: direct in the process, no sample preparation
  • Maintenance free: equipped with a self-calibrating feature, no field calibration necessary
  • Robustness: IP66 enclosure, suitable for outdoor and indoor installations and harsh environments
  • Insensitive to dust and smoke in the measured process: up to 50 g/m3
  • ATEX version available.
Operating principle

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.

INFLUENCES ON THE MEASUREMENT
Temperature

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.

Pressure

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).

Interferences

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.

MG (Multi Gauge)
The GasEye Cross Duct MG (Multi Gauge) analyzer consists of a pair of cross-duct sensors – a transmitter and a receiver unit as well as a central unit. The transmitter 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 central unit, located close to the transmitter unit (< 2 meters) contains analyzer electronics, MMI and I/O. The receiver unit is connected to the central unit by means of a hybrid loop cable (included) and the transmitter unit is connected to the central unit by one or two electrical cables (included).

 

Transmitter
Dimensions: width x height: 230 mm x 200 mm,
length: 350 mm
Weight: 15 kg
Equipment: 2 x laser sockets,
purging fittings
Receiver
Dimensions: width x height: 160 mm x 160 mm,
length: 330 mm
Weight: 13 kg
Equipment: 1 cable gland,
purging fittings
Central Unit
Dimensions: width x height: 330 mm x 230 mm,
length: 110 mm
Weight: 6 kg
Equipment: display with status indicators,
6 cable glands, Ethernet socket,
purging fittings
Protection standard
Degree of protection: In accordance with IP66
Process windows: Leak tested and certified in accordance with EN1779:1999 norm.

 



 

 

Safety

RoHS Directive 2011/65/EU  
Low Voltage Directive (LVD) 2014/35/EU PN-EN 60825-1:2014-11 – Safety of laser products – Part 1: Equipment classification and requirements
PN-EN 61010-1:2011 – Safety requirements for electrical equipment for measurement, control and laboratory use – Part 1: General requirements
Electromagnetic Compatibility Directive (EMC) 2014/30/UE Emission:
EN 55016-2-1:2014+A1:2017 – Measurements of conducted disturbances emission
EN 55016-2-3:2017+A1:2019 – Measurements of radiated disturbances emission
Immunity:
EN 61000-4-2:2009 – Electrostatic discharge immunity
EN 61000-4-3:2006 + A1:2008 + A2:2010 – Radiated, electromagnetic field immunity
EN 61000-4-4:2012 – Electrical fast transient / burst immunity
EN 61000-4-5:2014 + A1:2017 – Surge immunity
EN 61000-4-6:2014 – Immunity to conducted disturbances
EN 61000-4-29:2000 – Immunity to voltage dips, short interruptions and voltage variations
ATEX Directive 2014/34/EU EN IEC 60079-0:2018 – Explosive atmospheres – Part 0: Equipment – General requirements
EN 60079-2:2014 – Explosive atmospheres – Part 2: Equipment protection by pressurized enclosure “p”
EN 60079-11:2012 – Explosive atmospheres – Part 11: Equipment protection by intrinsic safety “i”
EN 60079-26:2015 – Explosive atmospheres – Part 26: Equipment with Equipment Protection Level (EPL) Ga
EN 60079-28:2015 – Explosive atmospheres – Part 28: Protection of equipment and transmission systems using optical radiation
Explosion protection (standard version):

  • ATEX II 3G [Ex op is IIC T6 Gc]
  • ATEX II 3D [Ex op is IIIC T85°C Dc]
Explosion protection – ATEX Zone 1/21 (optional version):
GasEye Cross Duct Ex1:

  •  II 1/2G Ex pxb op is IIC T6 Ga/Gb
  •  II 1/2D Ex pxb op is IIIC T85°C Da/Db

GasEye Cross Duct Ex1 IS:

  •  II 1/2G Ex pxb ia op is IIC T6 Ga/Gb
  •  II 1/2D Ex pxb ia op is IIIC T85°C Da/Db

GasEye Cross Duct Ex1 ET and GasEye Cross Duct Ex1 ET IS:

  •  II 1/2G Ex db eb h ia ib op is pxb q IIC T4 Ga/Gb
  •  II 1/2G Ex h ia ib op is pxb q tb IIIC T135°C Da/Db

Certificate No. KDB 20ATEX0003X EN
Certificate No. KDB 20ATEX0003X PL
Explosion protection – IECEx Zone 2/22 (optional version):

  •  op is pzc IIC T6 Gc
  •  op is pzc IIIB T85°C Dc

Certificate No. IECEx KDB 19.0004X

The post GasEye Cross Duct MG (Multi Gas) appeared first on Thomson Environmental Systems.

]]> GasEye Cross Duct SG (Single Gas) https://thomsongroup.com.au/product/gaseye-cross-duct-sg-single-gas/ Tue, 11 Jun 2024 01:52:29 +0000 https://thomsongroup.com.au/?post_type=product&p=20165 GasEye Cross Duct SG (Single Gauge) is a high performance in-situ analyzer that provides analysis for 23 analytes as standard and can be customised for specific combinations. GasEye Cross Duct SG utilizes tunable diode laser (TDL) absorption spectroscopy. The central unit sends a laser light through the process which is detected by the receiver unit […]

The post GasEye Cross Duct SG (Single Gas) appeared first on Thomson Environmental Systems.

]]> GasEye Cross Duct SG (Single Gauge) is a high performance in-situ analyzer that provides analysis for 23 analytes as standard and can be customised for specific combinations. GasEye Cross Duct SG utilizes tunable diode laser (TDL) absorption spectroscopy. The central unit sends a laser light through the process which is detected by the receiver unit mounted on the opposite side of the process. When a gas of interest is present in this process, it will absorb the laser light. The optical power detected in the receiver unit will depend on the concentration of the gas, temperature, pressure, and optical pathlength according to Lambert’s Beer law. Thus in order to determine the gas concentration, the analyzer requires information regarding temperature, pressure, and optical pathlength. Temperature and pressure signals can be provided by analog inputs, via industrial communication protocols, or as manual values via Webserver or HMI.

In the GasEye Cross Duct analyzer, the laser wavelength is specifically chosen to match the fingerprint region of the particular gas of interest and is being continuously scanned over the absorption line(s). Since full spectral information is recovered with very high spectral resolution the analyzer remains immune to foreign gas broadening and is immune to cross-interferences from dust and any other gas constituents in the process. GasEye Cross Duct by design can operate in several wavelength regions from Near-Infrared to Mid-Infrared.

Applications
  • Combustion control
  • Safety monitoring
  • Electrofilter Protection
Industries
  • Power industry
  • Steel industry
  • Chemical industry
  • Wood board production
Features
  • Process temperature: 0 – 1350°C
  • Real time sensing: response time below 0.2 second
  • High selectivity: automatic compensation for interference effect from other constituents in the gas sample
  • High sensitivity: detection limits down to ppb range
  • In-situ monitoring: direct in the process, no sample preparation
  • Maintenance free: equipped with a self-calibrating feature, no field calibration necessary
  • Robustness: IP66 enclosure, suitable for outdoor and indoor installations and harsh environments
  • Insensitive to dust and smoke in the measured process: up to 50 g/m3
  • ATEX version available.
Operating principle

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.

INFLUENCES ON THE MEASUREMENT
Temperature

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.

Pressure

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).

Interferences

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.

SG (Single Gauge)
The GasEye Cross Duct SG (Single Gauge) analyzer consists of a pair of cross-duct sensors – 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.

Transmitter
Dimensions: width x height: 330 mm x 230 mm,
length: 350 mm
Weight: 15 kg
Equipment: display with status indicators,
power indicator,
4 cable glands, Ethernet socket,
purging fittings
Receiver
Dimensions: width x height: 160 mm x 160 mm,
length: 330 mm
Weight: 13 kg
Equipment: 1 cable gland,
purging fittings
Protection standard
Degree of protection: In accordance with IP66
Process windows: Leak tested and certified in accordance with EN1779:1999 norm.

 

 

Safety

RoHS Directive 2011/65/EU
Low Voltage Directive (LVD) 2014/35/EU PN-EN 60825-1:2014-11 – Safety of laser products – Part 1: Equipment classification and requirements
PN-EN 61010-1:2011 – Safety requirements for electrical equipment for measurement, control and laboratory use – Part 1: General requirements
Electromagnetic Compatibility Directive (EMC) 2014/30/UE Emission:
EN 55016-2-1:2014+A1:2017 – Measurements of conducted disturbances emission
EN 55016-2-3:2017+A1:2019 – Measurements of radiated disturbances emission
Immunity:
EN 61000-4-2:2009 – Electrostatic discharge immunity
EN 61000-4-3:2006 + A1:2008 + A2:2010 – Radiated, electromagnetic field immunity
EN 61000-4-4:2012 – Electrical fast transient / burst immunity
EN 61000-4-5:2014 + A1:2017 – Surge immunity
EN 61000-4-6:2014 – Immunity to conducted disturbances
EN 61000-4-29:2000 – Immunity to voltage dips, short interruptions and voltage variations
ATEX Directive 2014/34/EU EN IEC 60079-0:2018 – Explosive atmospheres – Part 0: Equipment – General requirements
EN 60079-2:2014 – Explosive atmospheres – Part 2: Equipment protection by pressurized enclosure “p”
EN 60079-11:2012 – Explosive atmospheres – Part 11: Equipment protection by intrinsic safety “i”
EN 60079-26:2015 – Explosive atmospheres – Part 26: Equipment with Equipment Protection Level (EPL) Ga
EN 60079-28:2015 – Explosive atmospheres – Part 28: Protection of equipment and transmission systems using optical radiation
Explosion protection (standard version):

  • ATEX II 3G [Ex op is IIC T6 Gc]
  • ATEX II 3D [Ex op is IIIC T85°C Dc]
Explosion protection – ATEX Zone 1/21 (optional version):
GasEye Cross Duct Ex1:

  •  II 1/2G Ex pxb op is IIC T6 Ga/Gb
  •  II 1/2D Ex pxb op is IIIC T85°C Da/Db

GasEye Cross Duct Ex1 IS:

  •  II 1/2G Ex pxb ia op is IIC T6 Ga/Gb
  •  II 1/2D Ex pxb ia op is IIIC T85°C Da/Db

GasEye Cross Duct Ex1 ET and GasEye Cross Duct Ex1 ET IS:

  •  II 1/2G Ex db eb h ia ib op is pxb q IIC T4 Ga/Gb
  •  II 1/2G Ex h ia ib op is pxb q tb IIIC T135°C Da/Db

Certificate No. KDB 20ATEX0003X EN
Certificate No. KDB 20ATEX0003X PL
Explosion protection – IECEx Zone 2/22 (optional version):

  •  op is pzc IIC T6 Gc
  •  op is pzc IIIB T85°C Dc

Certificate No. IECEx KDB 19.0004X

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]]> Gas Sample Dilution Probe SP2000-H/DIL https://thomsongroup.com.au/product/gas-sample-dilution-probe-sp2000-h-dil/ Fri, 23 Jun 2023 05:35:39 +0000 https://thomsongroup.com.au/?post_type=product&p=20021 The electrically heated M&C dilution probe is used in processes where the measuring procedure or the handling of the process gas requires the dilution of the sample gas or the component(s) to be measured, e.g. for extremely toxic gases, for moisture or emission measurement in flue gases. Since the M&C dilution probe SP2000-H/DIL is based […]

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]]> The electrically heated M&C dilution probe is used in processes where the measuring procedure or the handling of the process gas requires the dilution of the sample gas or the component(s) to be measured, e.g. for extremely toxic gases, for moisture or emission measurement in flue gases.

Since the M&C dilution probe SP2000-H/DIL is based on the well-proven M&C gas sample probe SP2000H, a variety of applications requiring special filter techniques, materials, etc. can be handled without any problems with this dilution probe.

Gas sample dilution probe type SP2000‑H/DIL features:

  • external ceramic filter type S‑2K150
  • filter porosity: 2 µm
  • electrically heated external filter from 0 to 180 °C, adjustable by an integrated thermostat
  • high‑temperature limiter with reset key responding at +30 °C above Tset and low‑temperature alarm with potential‑free status‑alarm contact at ‑30 °C below Tset,
  • incl. weather protection shield with insulation
  • power: 230 V/50 Hz, 800 W
  • mounting flange: DN 65 PN 6B with G 3/4″ f connection
  • sample gas OUT: 8‑mm‑tube
  • material: SS 316Ti, ceramic, Viton®
  • Dilution ratio to be indicated with the order

Gas Sample Dilution Probe SP2000-H/DIL brochure

 

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]]> Portable Gas Sample Probe PSP4000-H https://thomsongroup.com.au/product/portable-gas-sample-probe-psp4000-h/ Thu, 04 May 2023 22:52:41 +0000 https://thomsongroup.com.au/?post_type=product&p=19977 Portable gas sample probe type PSP4000‑H with external ceramic filter type S‑2K, filter porosity: 2 µm, electrically heated external filter 100 to 180 °C adjustable by an integrated thermostat with indicator light (standard: 180 °C), 7‑pin plug with 4 m connection cable and mains plug, thermally insulated housing with carrying handle and chain incl. mounting […]

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]]> Portable gas sample probe type PSP4000‑H with external ceramic filter type S‑2K, filter porosity: 2 µm, electrically heated external filter 100 to 180 °C adjustable by an integrated thermostat with indicator light (standard: 180 °C), 7‑pin plug with 4 m connection cable and mains plug, thermally insulated housing with carrying handle and chain incl. mounting clamp for connecting the heated sample line, gas inlet: G 3/8″ f, gas outlet: G 1/8″ NPT with tube connector 6 mm, power: 230 V/50 Hz, 200 W, material: SS 316Ti, ceramics, Viton®

Gas Sample Probe SP4000-H brochure

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]]> Gas Sample Probe SP2000-H https://thomsongroup.com.au/product/gas-sample-probe-sp2000-h/ Thu, 04 May 2023 05:57:24 +0000 https://thomsongroup.com.au/?post_type=product&p=19972 Gas sample probe type SP2000‑H with external ceramic filter type S‑2K150, filter porosity: 2 µm, with electrically heated external filter 0 to 180 °C, adjustable by an integrated thermostat, high‑temperature limiter with reset key responding at +30 °C Tset and low‑temperature alarm with potential‑free status‑alarm contact at ‑30 °C below Tset, incl. weather protection shield […]

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]]> Gas sample probe type SP2000‑H with external ceramic filter type S‑2K150, filter porosity: 2 µm, with electrically heated external filter 0 to 180 °C, adjustable by an integrated thermostat, high‑temperature limiter with reset key responding at +30 °C Tset and low‑temperature alarm with potential‑free status‑alarm contact at ‑30 °C below Tset, incl. weather protection shield with insulation, power: 230 V/50 Hz, 800 W, mounting flange: DN 65 PN 6B with G 3/4″ f connection, sample gas OUT: 1/4″ NPT f, material: SS 316Ti, ceramic, Viton®

Gas Sample Probe Series SP®Versions SP2000, SP2000-H, SP2300-H, SP2400-H range brochure

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]]> Model 2020 Thermal Conductivity Analyzer https://thomsongroup.com.au/product/model-2020-thermal-conductivity-analyzer/ Thu, 04 May 2023 04:01:17 +0000 https://thomsongroup.com.au/?post_type=product&p=19958 The Series 2000 represents a complete line of Thermal Conductivity Detector (TCD) based analyzers which can be applied in a wide range of applications and industries. By using field proven filament-based and semiconductor based TC detectors, Teledyne is able to continuously monitor hydrogen and a variety of other gases of interest in either binary or […]

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]]> The Series 2000 represents a complete line of Thermal Conductivity Detector (TCD) based analyzers which can be applied in a wide range of applications and industries. By using field proven filament-based and semiconductor based TC detectors, Teledyne is able to continuously monitor hydrogen and a variety of other gases of interest in either binary or multi-component sample gas streams.

Series 2000 Platform

To contend with the numerous and varied analyzer requirements among industrial users, Teledyne has developed a feature rich, user-friendly platform. The Series 2000 comes with a standard software program incorporating such flexible features as (3) user-programmable ranges, automatic calibration, and customer selectable gas constituents.

Thermal conductivity is a basic property of gases that relates to their ability to conduct heat. Good conductors of heat such as H2 and He, have a high thermal conductivity whereas poor conductors of heat, such as CO2 and Ar, have low values. This ability to conduct heat forms the basis of detecti​on. The Series 2000 analyzes gas compositions by continuously comparing the sample gas with a reference gas (sealed or flowing) of known thermal conductivity. This comparison is performed in a 2 chamber detector cell block. Reference gas occupies one chamber and sample gas the other.​

A pair of temperature-sensitive heated filaments is mounted in each chamber. These filaments are part of a Wheatstone Bridge circuit. Should the sample gas composition change, its thermal conductivity will also change, conducting different amounts of heat away from the sample gas filaments. Since the resistance of the filaments is a function of their temperature, the resistance changes when the sample gas changes.

Any such change results in an imbalance in the Wheatstone Bridge, resulting in an electrical signal proportional to the change. Since the temperature of the filaments is tightly temperature controlled, the Series 2000 provides an accurate measure of any change in the sample gas composition. Teledyne offers this cell design in a variety of wetted parts to contend with corrosive gas streams typically found within the hydrocarbon processing industry.

Sensor Operating Principle

The thermal conductivity sensor measures the concentration of a specific gas between a hot surface resistor and an ambient temperature reference resistor using the thermal conductivity coefficient of the gas itself.

Sensor Description

The sensor structure consists of an integrated heater located on a thin electrical and thermal insulating membrane. Two thin film resistors are used for heating and measuring the temperature of the membrane. Two resistors are integrated on the silicon beside the membrane for the compensation of the ambient temperature changes.

Gases which have a lower density than air (CH4) cause a decrease on the surface membrane temperature. On the other hand, gases with densities heavier than air (CO2) increase the temperature of the measuring resistor.

Options

​C – Integrally mounted auto-calibration valving

H – Stainless steel cell block with gold filaments (for gas streams with H2S)

K – 19″ rack mount for 2000A

L – Gas selector panel for sample and cal gas selection and flow control

N – 220 VAC operation

R – Sealed reference (for filament-based TCD)

2000 Series Thermal Conductivity Analysers

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