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Flame Detectors and Open Path Gas Detectors

Flame Detectors and Open Path Gas Detectors. New models from Spectrex. Presentation Outline. Sierra Monitor flame product line Spectrex flame detectors Flame detector selection guide Flame detector types Applications Open Path Gas Detectors Open path gas detector types. Flame Detectors.

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Flame Detectors and Open Path Gas Detectors

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  1. Flame Detectors and Open Path Gas Detectors New models from Spectrex

  2. Presentation Outline • Sierra Monitor flame product line • Spectrex flame detectors • Flame detector selection guide • Flame detector types • Applications • Open Path Gas Detectors • Open path gas detector types

  3. Flame Detectors • Flame detectors used in same applications as combustible gas detectors • SMC flame detectors – 120o cone of vision, multiple gas types (hydrocarbon and non-hydrocarbon based) • 3100 – UV/IR/Visible wavelengths • 3200 – Semiconductor wet bench applications • 3300 – Indoor UV/IR flame detector

  4. Spectrex Flame Detectors • Compliment to SMC flame detectors • Lower price – 90o cone of vision • Wider range of detector types for wider range of applications • UV • UV/IR • Single IR • IR3 • Fast response • Hydrogen • CCTV-IR3

  5. Spectrex Flame Detectors • Competitive priced with comparative features to most industrial flame detectors • Scott and MSA flame detectors are manufactured by Spectrex and they receive same discount as SMC Spectrex IR3 MSA IR3 Scott IR3

  6. Distributor for Spectrex • Sierra Monitor is a new distributor for Spectrex • Sold as a Spectrex product, not as an SMC product • Spectrex handles technical support • Thus, advantages of wider range of flame detectors, without disadvantage of costs for support and engineering

  7. Flame and Open Path • Spectrex distributorship adds wider range of flame detectors and open path gas detectors to SMC product line • Ideal combination for many applications

  8. Spectrex Flame Detectors • How to select a flame detector • UV • UV/IR • Single IR • IR3 • Fast Response UV/IR and IR3 • Hydrogen • CCTV-IR3

  9. Optical Flame Detection General method: • Detecting the unique optical characteristics of flames • Distinguishing between flame radiation and background radiation

  10. Selecting a Flame Detector • Defining the Application: • Fuels present • Location of potential fires • Minimum fire sizes to detect • Maximum detection distance • Speed of response needed • Sources of nuisance radiation • Environmental conditions

  11. Selecting a Flame Detector • Fuel types: • Hydrocarbon or non-organic fuel types • Liquid or gases fuel source • Potential sources of false alarms • Fire size: • Detector sensitivity and range relatedto fire size

  12. Selecting a Flame Detector • Location of Flame Detector: • Flame detectors are optical devices and needs clear view of area • 3-D cone of vision ranging from 90o to 120o • Sensitivity diminishes at edges of cone • Sensitivity and range related, further away from fire source, the detectable fire size will vary according to inverse square law. • Doubling detector distance results in only ¼ of radiant energy reaching detector

  13. Optical Flame Detectors Applications • Outdoor or indoors • Oil & Gas installations (onshore & offshore) • Power Generation / Turbines • Paint spray booth • Hazardous storage tanks / loading/ offloading areas • Aircraft Hangars • Pharmaceutical Industry • Printing Industry • Warehouses for flammable materials • Waste Disposal Facilities

  14. 3100 UV/IR/Vis Flame Detection • Advantages: • Widest cone of vision • Low false alarm rate • Unaffected by solar radiation • Multiple fuel types • FM and CSFM approvals • Applications: • Hydrocarbon fires • Hydrogen, Silane and other hydrogen based fuels • Indoors or Outdoors

  15. 3200 UV/IR/Vis Flame Detection • Advantages: • Enclosure resistant to various semiconductor materials • FM and CSFM approvals • Applications: • Semiconductor wet bench applications • IPA and other semiconductor fuels • Indoors

  16. 3510 Series UV Flame Detection • Advantages: • High speed • Moderate sensitivity • Low cost • Unaffected by hot objects or solar radiation • Applications: • Hydrocarbon fires • Hydrogen, Silane and other hydrogen bases fuel types • Metal fires • Indoors

  17. 3500 Series UV/IR Flame Detection • Advantages: • Very low false alarm rate • Moderate speed • Unaffected by solar radiation • High immunity to false alarms • Applications: • Hydrocarbon fires • Hydrogen, Silane, Ammonia and other hydrogen-based fires • Metal fires • Indoors

  18. UV/IR Flame Detection Detection of the simultaneous existence of characteristic infrared and ultraviolet radiation

  19. 3520 Series IR3 Flame Detection • Advantages: • Moderate speed • Moderate sensitivity • Low false alarm rate • Unaffected by solar radiation • Applications: • Hydrocarbon fires • Indoors or outdoors

  20. IR3 Flame Detection Detection of the flame’s characteristic CO2 emission line by the use of three wavelength bands

  21. 3525 Series Single IR Flame Detection • Advantages: • Low cost • Moderate speed • Moderate sensitivity • Unaffected by solar radiation • Applications: • Hydrocarbon fires • Indoors

  22. IR/IR Flame Detection Detectsthe flame’s characteristic infrared radiation in two different wavelengths

  23. Other SharpEyeFlame Detector Models

  24. SharpEye Fast Response Versions • 20/20F high speed UV/IR Optical Flame Detector • High speed applications involving explosives and propellant fires, invisible Hydrogen flames and other hydroxy-flames like Silane, Ammonia, etc. • Response Time: Max. 5 milliseconds(msec) for 5" gasoline pan fire at 1 ft

  25. SharpEye Fast Response Versions • Triple IR (IR3) 20/20FI offers a fast response time of 0.2 at a range of 6.6 ft (2m) and 1 second at a range 33 ft (10m) • Designed for applications that require high-speed, reliable flame detection with the highest immunity to false alarms. For applications that may involve fast developing fires such as solvents, ethylene, polyethylene, LNG and LPG and other volatile gases.

  26. CCTV / IR3 Flame Detector • Live Color Video Image • Visual and Spectral Flame Analysis • Multiple Sensitivity Selection • 3-Year WarrantyIdentifies 1ft2 (0.1m2) gasoline flame at 100ft (30m), offering a “live video” image of the monitored area.

  27. Innovation The CCTV Flame Detector enables the user to investigate themonitored area, identify the fire’s source and location and help select the best response, e.g. activation of fire suppression Picture of a 1ft² gasoline flame taken by the CCTV Flame Detector from a distance of 83 ft. (25 m)

  28. Accessories – Fire Simulators • Test the operation of the various SharpEye Optical Flame Detectors. • Emit radiation in a unique sequential pattern simulating a fire by the specific SharpEye Flame Detectors. • Can test under ‘real ’ fire conditions without the associated risks of an open flame. • Beam collimator extends range where detector access is difficult, thus avoiding costly access work, scaffolding, etc. With collimator Without collimator

  29. SharpEye Accessories Laser Pointer • Evaluates detector coverage on-site. • Enables designers and installers to optimize detector location and assess the actual coverage of installed detectors. • Universal and can be used with all SharpEye Optical Flame Detectors. Swivel Mounting Brackets All detectors are provided with a stainless steel Mounting/Alignment bracket to allow easy installation and direction of the detector.

  30. SharpEye Accessories High Temperature Duct Mount Designed to allow flame detection in ducts where high temperatures exist. Comprises a special duct mount arrangement and heat sink. Air Shield Air Shield allows connection of compressed air line to prevent particle build-up on window.

  31. Spectrex SafEye Open Path Gas Monitoring Systems

  32. SafEye Monitoring System Consists of two modules: • Light source – A unique UV flash source that emits a wide spectral band. • Detector – The sensing and analyzing module of the system.

  33. SafEye System Description • Unique light source (Flash) • Discriminative narrow band filtered sensors • Identification and concentration determination of flammable and toxic gases in very low concentrations

  34. SafEye Features • High Sensitivity (PPM to LEL %) • Flexible detection range (0.5-140 m) • Immunity to industrial and environmental harsh conditions. • Standard interfaces (multiple standard output interfaces like 4-20mA, RS-485,etc)

  35. Gas Concentration Definition • Distance between light source and detector varies for different installations, so the gas concentration is determined as an average value over the entire optical path, either in PPM•m or LEL•m • Dividing the above value by the distance L (m) between the light source and the detector , the gas average concentration is obtained - C (PPM or LEL %).

  36. The SafEye Solution • Radiation sources – Flash • Blocking, misalignment, vibration – Unique three lenses design • Atmospheric conditions - High absorption around 3.4µ, Automatic gain control, Unique reference filter • Correct LEL measurement for relevant gases -Standard calibration to four gases – mixtures • Temperature - Internal temperature calibration

  37. SafEye IR Gas Model 2003560-2XX Combustible Gas • Detect all vapors/gases that absorb IR radiation in the 1-5 micron band. • Typical gases include: Methane, LPG, LNG, Ethylene and all the other Paraffin, Olefins linear and Cyclic Hydrocarbons.

  38. SafEye UV Gas Models 4003560-4XX Toxic Gases • Detect all vapors/gases that absorb UV radiation in the 0.2-0.3 micron band. • Typical gases include: • Ammonia, H2S, CS2, Benzene and other Aromatic and Toxic gases

  39. SafEye Xenon 7003560-7XX Combustible Gases • Long range detection up to 140 meters • High Sensitivity and fast response • Heated Optics, for all weather operation • Simple installation, alignment and functional check • No need for interconnecting cable between source & detector • No need for hand-held unit to align system

  40. Sources of Information • SMC website • http://www.sierramonitor.com/gas/flame/flame_detectors.asp • http://www.sierramonitor.com/gas/open_path_gas_detection/Open_Path_Gas_Detectors.asp • Spectrex website • http://www.spectrex-inc.com/default.htm

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