Flame Detectors and Open Path Gas Detectors

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Flame Detectors and Open Path Gas Detectors

• New models from Spectrex

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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

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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

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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

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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
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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

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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

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Spectrex Flame Detectors

• How to select a flame detector
• UV
• UV/IR
• Single IR
• IR3
• Fast Response UV/IR and IR3
• Hydrogen
• CCTV-IR3

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Optical Flame Detection

• General method
• Detecting the unique optical characteristics of
  flames
• Distinguishing between flame radiation and
  background radiation

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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

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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

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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

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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

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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

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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

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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

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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

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UV/IR Flame Detection
Detection of the simultaneous existence of
characteristic infrared and ultraviolet radiation
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3520 Series IR3 Flame Detection

• Advantages
• Moderate speed
• Moderate sensitivity
• Low false alarm rate
• Unaffected by solar radiation
• Applications
• Hydrocarbon fires
• Indoors or outdoors

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IR3 Flame Detection
Detection of the flames characteristic CO2
emission line by the use of three wavelength
bands
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3525 Series Single IR Flame Detection

• Advantages
• Low cost
• Moderate speed
• Moderate sensitivity
• Unaffected by solar radiation
• Applications
• Hydrocarbon fires
• Indoors

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IR/IR Flame Detection
Detects the flames characteristic infrared
radiation in two different wavelengths
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Other SharpEyeFlame Detector Models
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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

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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.
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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.

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Innovation

• The CCTV Flame Detector enables the user to
  investigate the monitored area, identify the
  fires 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)
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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
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SharpEye Accessories

• Swivel Mounting Brackets
• All detectors are provided with a stainless steel
  Mounting/Alignment bracket to allow easy
  installation and direction of the detector.

• 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.

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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.

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Spectrex SafEye Open Path Gas Monitoring Systems
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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.

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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

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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)

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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 PPMm or
  LELm
• 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 ).

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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

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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.

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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

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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

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Sources of Information

• SMC website
• http//www.sierramonitor.com/gas/flame/flame_detec
  tors.asp
• http//www.sierramonitor.com/gas/open_path_gas_det
  ection/Open_Path_Gas_Detectors.asp
• Spectrex website
• http//www.spectrex-inc.com/default.htm