Crowcon Open Path Gas Detectors (Hazardous Areas)

Crowcon Open Path Detectors

Crowcon Open Path Detector – call T&D Sales for price, delivery and stock.

Crowcon Open Path Gas Detectors are fixed gas detectors that use infra-red technology for the quick detection of combustible gases and vapours of over a line-of-sight up to 200m long.

The Crowcon Open Path gas detector range uses a well proven superior technology known as “Xenon Flash” which is unaffected by unpredictable weather including sunlight, flame and radiation and false alarms are kept to a minimum even when the gas detector is partially blocked.

Crowcon Open Path Gas Detectors

Crowcon Open Path Gas Detectors – open-path infra-red gas detection system based on well proven technology

Crowcon Open Path fixed gas detectors are part of the SafEye range which comprises of the following devices:

  • SafEye Quasar 900 – gas detector system ideal for use in harsh environments where weather conditions can reduce the signal. The main stainless steel enclosure is Exd flameproof with an integral, segregated, Exe terminal section
  • SafEye 700 series – with heated optics that can deal with arduous environmental conditions no problem. The handy data port allows for easy access and makes configuration simple
  • SafEye 200 series – rugged in design and an economical solution that delivers reliability and high immunity to false alarms
  • Duct Mounted SafEye – specifically designed to monitor hazardous flammable gas concentrations mainly in turbine engines and HVAC air ducts

Crowcon SafEye Quasar 900 Fixed Gas Detector – Key Features

  • Immunity To False Alarms – Quasar 900 is totally immune to interference from sunlight or any other sources of radiation such as flare stacks, arc welding or lightning.
  • Performance In All Weathers – The Quasars 900’s high power xenon lamp will compensate for changing weather conditions, including rain, fog, mist, snow and makes it immune to influences from solar radiation, arc welding, stack flares or vibration from machinery. The optical lenses are thermostacically heated to prevent the formation of ice and build up of snow on the optics even under severe weather conditions. It also eliminates build up of condensation on the lenses. Quasar is rated for operation over a very wide temperature range from -67°F to + 149ºF (-55ºC to + 65ºC) – a truly worldwide product
  • Reliability – Quasar 900 is designed to SIL2 (IEC61508), equipped with heated optics and tolerates a very wide temperature range to provide reliable detection – 24/7
  • Failsafe – No unrevealed failures. In normal operation, the output signal is 4 to 20 mA, depending on the measured gas concentration. Sub-4mA signals includes indications for beam blockage (2mA), a fault (1mA). In addition, a continuous self-test of the Quasar 900 will issue a pre-warning signal (3mA) where the detector is still operational but requires some attention – for example when the transmitter or receiver is misaligned or if there is a deposit build-up on the optics. Maintenance without downtime!
  • Built-In Data Logger – An internal data-logger keeps a detailed record of the previous 100 events.
  • Gas Library – The detector can be calibrated for up to three gases. Each detector is supplied with methane, propane and ethylene calibration as standard which are field selectable by the user. No need for any manual adjustment or standard test gas, due to the built-in calibration of the Quasar 900.
  • Minimum Detectable Level – Due to Quasar 900’s inherent stability and sensitivity, the minimum detectable level is 0.15 LEL.m
  • Simple To Align & Commission – One person can easily align and commission the system without the need for special training or skills. After an initial coarse adjustment by eye, a telescope is fitted allowing fine adjustment to optimized the adjustment for maximum signal strength.

Crowcon SafEye Quasar 700 Fixed Gas Detector – Key Features

  • Proven Technology – The NEW SafEye Version is based on proven technology and performance. Thousands of first generation Flash Type SafEye are installed on offshore platforms, FPSO’s, refineries, and other onshore applications operated by British Petroleum (BP), Shell, ExxonMobil, Statoil, and others.
  • One-Person Commissioning and Installation – One person can simply and easily align and commission SafEye with separate horizontal and vertical adjustments.
  • Fast Response – Direct reading, high sensitivity and fast response (3 sec) ensures instant action and maximum safety.
  • Harsh Environment – Well-proven in harsh environments (rain, snow, fog, hot and humid weather), up to 90% beam blockage, an excellent operational record in many installations worldwide. – Heated Optics on the source and detector increase the temperature of the optical surface to reduce icing, condensation and snow. – Resilient and excellent performance withstanding extreme vibrations, displacement and shock. – Solar blind and immune to false alarms from industrial environments
  • Detects a Wide Range of Gases Reliable detection of gas leaks including a wide range of gaseous hydrocarbons, such as: Alkanes, Alkenes (C1-C8), Alcohols, LNG, LPG, Ethylene, etc.
  • Cost Effective – Less units needed for protection compared with point type detection. One system can replace from 5 to 20 point gas detectors. Low cost of ownership, much lower installation cost!
  • Large Misalignment Tolerance – Provides relatively wide angle of view, better than 1˚, to withstand vibration, mechanical shock and displacements.
  • Standard Interface Options Standard – 4-20 mA output with a new mode (3 mA) “Maintenance call” or RS-485, Modbus compatible output to allow networking (up to 256 detectors) to a central monitoring / PC system. This feature also enables easy maintenance, local and remote diagnostic tools.
  • No Poisoning Effect Electro-optical system, not affected by chemicals.
  • Rugged Structure Stainless steel 316L, IP66/67, Zone 1 ready design

Crowcon SafEye Quasar 200 Fixed Gas Detector – Key Features

  • Proven Technology – Used in highly sensitive areas to detect low gas concentration levels to activate alarms measures only when specific hazardous concentration levels are exceeded. Thousands are installed on offshore platforms, FPSO’s, refineries and other onshore applications operated by British Petroleum (BP), Shell, ExxonMobil, Statoil and others.
  • Cost Saving – One system can replace from 5 to 20 point gas detectors in a straight line of sight, up to 460 ft. (140 m).  Low cost of ownership, much lower installation cost!
  • Fast Response – Adjustable light source flash rate gives high sensitivity and extremely fast detection time. Also prevents detector from going into obscuration when a large cloud of gas passes through the beam.
  • Harsh Environment – Specially designed to perform under extreme conditions such as high-speed airflows, humidity and corrosive gases where point detectors may not be effective.
  • Low Maintenance – High reliability, simple installation, alignment and maintenance, equipment not subject to poisoning.
  • Standard Interface Options – Standard 4-20 mA outputs or RS-485 output to allow networking (up to 64 detectors) to a central monitoring/PC system. This feature also enables easy maintenance, local and remote diagnostic tools.

Crowcon Duct Mounted SafEye Fixed Gas Detector – Key Features

  • High Sensitivity – Alarm up to 0.5 LEL.m. 5 times more sensitive than the normal Open Path equipment
  • Fast Response – Fast response time of 2 seconds (300 series) and ultra fast response of 1 second (200 series). 5 to 10 times faster than the commonly used Open Path detector and 20-50 times faster than the Point Detector.
  • Low Maintenance – High reliability, simple installation, alignment and maintenance, equipment not subject to poisoning.
  • Proven Technology – Used in air ducts on FPSO’s and offshore rigs for British Petroleum (BP), Shell and ABB Lummus for turbines, air intakes, etc.
  • Harsh Environment – Specially designed to perform under extreme conditions such as high-speed airflows, high temperatures (up to 158˚F (70˚C)), humidity and corrosive gases, where point detectors may not be effective.
  • Standard Interface Options – Standard 4-20 mA outputs or RS-485 output to allow networking (up to 64 detectors) to a central monitoring/PC system. This feature also enables easy maintenance, local and remote diagnostic tools.
Crowcon Open Path Fixed Gas Detector Systems

Crowcon Open Path Fixed Gas Detector Systems

Crowcon Open Path Fixed Gas Detector Bump Testing And Calibration

Routine bump testing is recommended for the range of Crowcon fixed gas detectors prior to each use. Bump testing is a brief application of a gas to the sensor to invoke a prescribed reaction, ensuring the gas detector reacts as expected.

Bump testing provides a quick, easy and direct method of verifying gas detectors are performing as required and takes a lot less time than ‘zeroing’ the device.

The bump test is widely accepted as a suitable method of testing gas detection equipment.

Crowcon SafEye Quasar 900  – Product Specifications

Hazardous Area Approval ATEX/IECEx approved per Ex d e ib [ib Gb] IIB + H2 T4 Gb Ex tb IIIC T135°C Db The detector or source units have a combination of approvals. Each is a single enclosure (Exd) with integral, segregated rear terminal section (Exe) and intrinsically safe (Exia) data-port for external in-situ connection to Hand-Held Diagnostic unit. FM/FMC Approved per Class I Div 1 Groups B, C and D, Class II,III Div 1 Groups E, F and G
Performance Approved per FM6325 and tested by FM per EN60079-29-4
ReliabilitySIL2 per IEC61503 (TUV) – Pending
Enclosure The source and detector housings are stainless steel 316L with electro polish finish. The circuit boards are conformal coated and protected from mechanical vibrations. The tilt mount is also stainless steel 316L
Dimensions Detector/Source 10.5 x 5.1 x 5.1 inch (267 x 130 x 130mm) – Tilt Mount 4.7 x 4.7 x 5.5 inch (120 x 120 x 158mm)
Weight Detector/Source 11lb (5kg) – Tilt Mount 4.2lb (1.9kg)
Water and Dust Tight IP66 and IP68 NEMA 250 6P
Environmental Meets MIL-STD-810C for Humidity, Salt and Fog, Vibration, Mechanical Shock, High and Low Temperature

crowcon SafEye 700 Series  – Product Specifications

Hazardous Area ApprovalATEX EX II 2(1) GD, EExde ia [ia] IIC T5 (55˚C). The detector or source units have a combination of approvals. Each is a single enclosure (EExd) with integral, segregated rear terminal section (EExe) and intrinsically safe (EExia) data-port for external in-situ connection to Hand-Held Diagnostic unit IECEx Ex d e ia [ia] IIC T5 (Ta=-40°C to +55°C or -40°C to +70°C)
EnclosureThe source and detector housings are stainless steel 316L with electropolish finish. The circuit boards are conformal coated and protected from mechanical vibrations. The tilt mount is also Stainless Steel 316L
DimensionsDetector – 8.2 x 5.7 x 6 inch (210 x 145 x 154 mm) Source – 10 x 5.3 x 6.9 inch (255 x 135 x 175 mm) Tilt Mount – 4.7 x 4.7 x 5.5 inch (120 x 120 x 140 mm)
WeightDetector – 9.2 Lb (4.2 Kg.) Source – 10.1 Lb (4.6 Kg) Tilt Mount 4.2 Lb (1.9 Kg)
Water and Dust TightIP66 and IP67 NEMA 250 6P
EnvironmentalMeets MIL-STD-810C for Humidity, Salt & Fog, Vibration, Mechanical Shock, High Temp, Low Temp

crowcon SafEye 200 Series  – Product Specifications

Hazardous Area ApprovalsATEX – EX II 2G EExd IIB + H2 T6 (55˚C) EX II 2G EExde IIB + H2 T6 (55˚C), UL – UL No. – E209870, Class I Groups C and D Hazardous Location, GOST R Approved
Dimensions5.2″ (132mm) x 5.2″ (132mm) x max. 11″ (280mm)
WeightAluminium Enclosure – Detector: max 8.8 lb (4 kg) Source: max 10.8 lb (4.9 kg), Steel Enclosure – Detector: max 14.3 lb (6.5 kg) Source: max 16.7 lb (7.6 kg)
Mechanical DesignThe standard detector housing is heavy-duty, copper-free (less than 1%) aluminum. The housing is finished in white epoxy enamel and is also available in 316L Stainless Steel* upon request. *Carries an additional charge.
Environmental StandardsMeets MIL-STD-810C for Humidity, Salt & Fog, Vibration, Mechanical shock, High Temp, Low Temp
Water and Dust TightIP66 and 67 NEMA 250 6P

crowcon Duct Mounted SafEye  – Product Specifications

Hazardous Area ApprovalsATEX – SIRA 00ATEX 1161, EX II 2G EExd IIB + H2 T5 (70˚C), T6 (55˚C) SIRA 00ATEX 1165, EX II 2G EExde IIB + H2 T5 (70˚C), T6 (55˚C) ; UL – UL No. – E209870, Class I Groups C and D Hazardous Location ; FM (300 Series) – Class I, Division 1, Groups B, C and D, Dust Ignition proof for Class II, Division 1, Groups E, F and G
Dimensions5.2″ (132mm) x 5.2″ (132mm) x max. 4.7″ (120mm)
WeightAluminium Enclosure – Detector: max 8.7 lb (3.7 kg) Source: max 8.58 lb (3.9 kg) ;  Steel Enclosure Detector: max 13.4 lb (6.1 kg) Source: max 13.84 lb (6.3 kg)
Mechanical DesignThe standard detector housing is heavy-duty, copper-free (less than 1%) aluminum. The housing is finished in white epoxy enamel and is also available in 316 Stainless Steel* upon request. * Carries an additional charge
Environmental StandardsMeets MIL-STD-810C for Humidity, Salt & Fog, Vibration, Mechanical shock, High Temp, Low Temp
Water and Dust TightIP66 and 67 per En60529 NEMA 250 6P

HAZARDOUS AREA ATEX CERTIFIED GAS DETECTORATEX

Hazardous Area Classification :

SafEye Quasar 900 Fixed Gas Detector

ATEX/IECEx approved per Ex d e ib [ib Gb] IIB + H2 T4 Gb Ex tb IIIC T135°C Db

FM/FMC Approved per Class I Div 1 Groups B, C and D, Class II,III Div 1 Groups E, F and G

SafEye Quasar 700 Fixed Gas Detector

ATEX EX II 2(1) GD, EExde ia [ia] IIC T5 (55˚C).

IECEx Ex d e ia [ia] IIC T5 (Ta=-40°C to +55°C or -40°C to +70°C)

SafEye Quasar 200 Fixed Gas Detector

ATEX – EX II 2G EExd IIB + H2 T6 (55˚C) EX II 2G EExde IIB + H2 T6 (55˚C),

UL – UL No. – E209870, Class I Groups C and D Hazardous Location, GOST R Approved

Duct Mounted SafEye Fixed Gas Detector

ATEX – SIRA 00ATEX 1161, EX II 2G EExd IIB + H2 T5 (70˚C), T6 (55˚C) SIRA 00ATEX 1165, EX II 2G EExde IIB + H2 T5 (70˚C), T6 (55˚C) ;

UL – UL No. – E209870, Class I Groups C and D Hazardous Location ;

FM (300 Series) – Class I, Division 1, Groups B, C and D, Dust Ignition proof for Class II, Division 1, Groups E, F and G

Visit hazardous area gas detectors for explosion and flameproof gas monitoring and detection instruments with certification for potentially explosive atmospheres, including Zone 1 and Zone 2 (according to ATEX and IECEx) and Class/Division categories (according to North American standards).

T&D provide competitive prices and delivery for all Crowcon Gas Detectors, including the Crowcon Open Path Gas Detectors.

➡ Did you know? Crowcon fixed gas detectors protect plant; portable gas detectors protect people.

Crowcon

T&D Sales Team are Certificated by Crowcon to support the specification and supply of their flammable and toxic gas detectors. Additionally, T&D are CompEx Certificated and competent in understanding hazardous area classifications and site requirements for the sale of explosion and flameproof equipment.