Scott固定式氣體探測器和火焰探測器****行業(yè)

Reduce inventory and installation costs associated with multiplegas detection points throughout a facility by as much as 40 percentwith the Scott? Freedom? Direct gas detector. Specifically designedto detect combustible gases and carbon dioxide using IR orCatalytic Bead sensor technologies, the Scott Freedom Directdetector delivers information on gas concentrations directly to acontroller that is designed to accept Catalytic Bead sensorswithout the need for a transmitter. By eliminating the use of thetransmitter, the Freedom Direct detector reduces the initialinvestment needed to maintain
plant safety.

Product Features:

• Simple, Low-Cost Design
• Remote, Stand-Alone Operation
• Simple, Flexible Installation
• Plug-and-Play Sensor Technology
• Upgradable to the Freedom 6000 in the Field
• IR and Bead Sensor Capable

 

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Freedom? 6000 IR Transmitter

The Freedom 6000 Transmitter provides a solid foundation for ourgrowing Freedom 6000 product family. At the core of the Freedom6000 Transmitter is our distinctive plug and play sensortechnology. When coupled with our modular infrared gas sensor, theFreedom 6000 Transmitter provides a new level of simplicity forprotection including detecting the presence of hydrocarbons.

Applications:

• Oil and Gas Production Platforms
• Refineries
• Gas Collection and Distribution Facilities
• LNG /LPG Processing and Storage Facilities
• Chemical Plants
• Solvent Vapors
• Wastewater Treatment Facilities
• General Industry

 

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Freedom PIDTransmitter

At the heart of the Freedom PID transmitter is an internal PIDsensor capable of detecting hundreds of organic compounds. Simplychoose the particular gas or gases from the preprogrammed libraryand the instrument is tuned to measure for that VOC. This broadrange PID sensor is also ideal for determining unknown or potentialVOC’s regardless of the environment. The Freedom PID transmitteraffords an alternate detection solution for applications wheretraditional technologies have been limited. The intrinsic PIDsensor does not loose its zero stability when over-ranged like atraditional catalytic bead or electrochemical sensor. And, this PIDsensor offers much lower level ranges of detection where toxicityis an important criteria in day to day operations. Many of thecombustible materials found in industrial environments are in theLEL range and are highly toxic at levels far below the range oftraditional detection instruments. The Freedom PID transmitteroffers a solution for these applications as well. The Freedom PIDis a critical component of a complete gas detection solution formost any application.

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Freedom 5600 Gas Detector

Freedom 5600's advanced sensor technology combines with itsuniversal transmitter electronics to help users streamline thetransmitter's operation and maintenance requirements.The uniqueelectrical design of the 5600 transmitter and sensor virtuallyeliminate false alarms due to RFI/EMI sources. The transmitter canbe mounted directly to rigid conduit and is available with severaloptional adaptors.

Advantages

• Sensor warm-up times are reduced
• Corrosion resistance
• No RFI/EMI induced alarms
• Field maintenance and calibration
• Stocking additional electronics
• No sensor pins or wires

 

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Freedom? 5000 Transmitter

Freedom 5000's advanced sensor technology combines with itsuniversal transmitter electronics to help users streamline thetransmitter's operation and maintenance requirements.The uniqueelectrical design of the 5000 transmitter and sensor virtuallyeliminate false alarms due to RFI/EMI sources. The transmitter canbe mounted directly to rigid conduit and is available with severaloptional adaptors. Calibration is non-intrusive, performed bytouching a magnet to the "Z" (zero) and "S" (span) markings on theenclosure.

Features:

• No sensor warm-up times
• Corrosion resistance
• RFI/EMI induced alarms eliminated
• Simple field maintenance and calibration.
• No stocking additional electronics for various sensor types.
• Non-intrusive operation/calibration.
• No sensor pins or wires.
• Intrinsically safe
• Utilizes field proven GasPlus sensor technology

 

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4688 GasPlus-IR? Transmitter

The Model 4688-IR is a rugged, reliable solution for combustiblegas or carbon dioxide gas detection. Designed with extensive userinput, the instrument is extremely flexible, easy to use, and easyto maintain.

IR technology provides numerous advantages that may bebenificial for your application’s conditions:

• Reduced maintenance (no span calibration required).
• No saturation from high gas concentrations
• No oxygen required for operation
• Continuous sensor fault monitoring
• Sensor lifetime not reduced by exposure to gas
• Rapid speed of response
• Minimal temperature and humidity effects

Features:

• Low Maintenance
• No span calibration required
• Zero adjustment a quick, non-intrusive procedure
• Many user adjustable parameters
• Rugged Design with stainless steel optics component protection
• Multiple Output Choices 4-20mA and RS/485 (Modbus protocol)outputs. Relays with user adjustable set/reset points, and timedelays are available as an option.

 

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4600 GasPlus? UniversalTransmitter

The Series 4600 GasPLUS? is a toxic gas and oxygen transmitterdesigned for single and multi-point monitoring applications whereruggedness, flexibility, and ease of maintenance are critical.

The basic Series 4600 transmitter is a two-wire device providinga 4-20 mA output. For additional output flexibility, Series 4600 MBtransmitters offer RS-485/232 MODBUS? RTU output and relay contactsin a multi-wire configuration.

• Local display
• Non-intrusive calibration
• No sensor warm-up time
• Remote sensor maintenance
• Sensor removal without the need to declassify the area
• Sensor end-of-life indicator

4600MB Additional Features:

• Optional built-in alarm relays
• RS-485/232 MODBUS? RTU output
• Security lockout

Approvals: (for x-proof NEMA-7 housing with intrinsically safesensor connection)

• (4600)ETL & UL/C-UL Class I,Division 1,Groups B,C,D
• RS-485/232 MODBUS? RTU output
• (4600MB) Class 1/Zone 1/Groups IIC, EX d IIC T6

 

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SafEye? Open PathTransmitters

SafEye's unique,patented “Flash Type” light source provides foran alignment tolerance of ±1° in all directions and is protectedagainst false gas reading and alarms due to partial beamblockage.

Unlike traditional open path systems, SafEye is immune to thefalse alarms experienced by traditional open path systems that arecaused by responses to direct or reflected radiation from sunlight,flares, illumination and other “black body” radiation sources.

 

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Sample Draw System

Positive Flow Detector Panels provide gas monitoring from remotelocations via a flow system allowing for monitoring in areas whereconventional diffusion detectors cannot or should not be utilizeddue to environmental and/or process conditions such astemperature,particulate matter, etc. Although typically used forcombustible gas monitoring, the Positive Flow Panel can also beused for monitoring other toxic materials and oxygen.

• Various configurations are available from Scott and can includean optional automatic water blowdown coalescent filter.
• Any Scott transmitter can be included on the flow panel.Contact factory for details
  

Gases such as Methylene Chloride and Nitrogen Trifluoride cannotbe detected by ordinary electrochemical gas sensors. By breakingthese gases into simpler compounds, the Pyrolyzer Gas DetectionSystem enables users to monitor low levels of the toxic gases.

The Pyrolyzer Gas Detection System uses a powerful internal pumpto continuously draw gas from the source. The gas passes through asuper-heated cylinder where it is broken down into by-productcompounds. These compounds, generated in fixed proportions fromeach molecule, are measured by the electrochemical sensor.Transmitter electronics calculate conversion ratios and produce ahighly accurate output signal proportional to target gasconcentration