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Houston, TX USA

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$8,084.00     Availability: 3 Weeks
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Spectrex SafEye 301DS Air Duct Gas Detection System for hydrocarbons (0-2.5 LEL). Detects C1-C8 flammable gases. Reliable High Speed Detection. 4-20mA or RS-485 outputs. 24 VDC power supply. IP66 and IP67. ATEX Approved for Class I Div 1 and Class II Div 1.

Part# with Options:        301DS
Price with Options:        8,084.00


(1) Approvals for Spectrex 300 Series

  Availability 3 Weeks  ]

SafEye 300 Duct Open Path Detectors were specially designed and are widely used to monitor and alarm against ingress of hazardous gas concentrations into air intakes of turbine engines and HVAC air ducts. Formation and migration of gas clouds and their possible penetration into safe places, control rooms, turbine engines, etc. is a substantial risk that needs to be addressed.

Users, designers and safety and operational engineers are increasingly required to provide for adequate and fast detection and alarm to protect these hazards.

For duct applications, over a small path across an air inlet, the system is designed to respond with a very high sensitivity, full scale of 1 LEL.m for 2-6.6 ft. (0.6-2 m) wide inlet and full scale of 2.5 LEL.m for 6.6-23 ft. (2-7 m) wide inlet.

The SafEye 300 Duct system, due to its special optics design, provides for a misalignment tolerance of 2° in all directions and is protected against false gas reading and alarms which are caused by partial obscuration and blocking, misalignment, vibration, flexing or tilts.

Each SafEye unit is factory calibrated in a temperature cycle run at the entire operating temperature range. The temperature compensating mechanism allows correct operation in changing and extreme temperatures while maintaining the system’s accuracy. Its internal microprocessor will automatically compensate for low signals with its internal Automatic Gain Control (AGC).

The SafEye 300 Duct system can be factory calibrated to gas mixtures that are associated with offshore production and processing and onshore installations.

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.
  • 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.


    The following optional accessories designed for the SafEye system are available.

    Duct Mounting

    The duct mount interfaces between the detector and the duct surface.

    The duct mount enables the detector's alignment up to 3 ̊ in all directions (P/N 794716).

    Commissioning / Alignment Kit for standard and duct type units is required for commissioning and future maintenance checks. Only one kit is required per site.

    The kit includes an Alignment Telescope P/N 794110, a Magnetic Mode Selector P/N 790285 and a Function Check Filter P/N 794220-1÷5 for system testing along with socket keys for access to units (P/N 792247).

    Typical Applications

    Offshore Oil & Gas Rigs and FPSOs; Onshore Oil & Gas Terminals; Storage Farms and Filling Stations; Petrochemical and Chemical Industries; Power Utilities and Turbines areas; Automotive, Painting, Printing, Pharmaceutical Industries and many more...

    Specific applications include:

    • HVAC ducts (Heating Ventilation Air Conditioning) in accommodations areas
    • Air ducts in process areas
    • Stacks and exhaust towers
    • Compressors and generators enclosures
    • Curing ovens and drying equipment, printing equipment
    • Engine & Turbine air intake and exhaust
    • Air intake to safety enclosures
    • Paint-booths and paint production and drying processes
    • Air ventilation shafts

    General Specifications
    Detected Gases Simultaneous detection of C1-C8 flammable gases
    Detection Range and Response Time 301DS: 2-11.5ft (0.6-3.5m) / 2 sec.
    302DS: 9.9-49.5ft (3-15m) / 5 sec.
    Immunity to False Alarm Not influenced by solar radiation, hydrocarbon flames, other external IR radiation sources, high airflows and high loaded streams
    Spectral Response 3.0-4.0 μm
    Sensitivity Range 0-2.5 LEL.m Standard; 0-1 LEL.m by dip-switch setting
    Misalignment Tolerance ±2˚
    Drift Long-term ±5% of full scale
    Temperature Range -40 ̊F (-40 ̊C) to 158 ̊F (70 ̊C)
    Electrical Specifications
    Power Supply 24 VDC (18-32 VDC)
    Power Consumption Detector: 150mA @ 24 VDC (200 mA Peak)
    Source: 100mA @ 24 VDC (220 mA Peak)
    Electrical Connection 2 x 3/4'' - 14NPT conduits or 2 x M25 x 1.5 mm ISO
    Electrical Input Protection According to MIL-STD-1275B
    Electromagnetic Compatibility EMI/RFI protected CE Marked
    Sink (source option) configuration
    Maximum load: 600Ω at 18-32 VAC
    4-20mA: Gas reading
    4mA: Normal, zero reading
    2mA: Obscuration/misalignment /beam block
    1mA: Zero calibration mode
    0mA: Fault
    HART Protocol HART communications on the 0-20mA analog current (FSK) - used for maintenance, configuration changes and asset management
    RS-485 The RS-485 input/output provides complete data information to a PC and receives control commands from the PC or handheld unit
    Type Normal Position Maximum Ratings
    Alarm SPDP NO, NC 2A at 30VDC or 0.5 at 250 VAC
    Accessory SPST Open 5A at 30VDC or 250VAC
    Fault SPST Closed 5A at 30VDC or 250 VAC
    Mechanical Specifications
    Dimensions 5.2" (132mm) x 5.2" (132mm) x max. 4.7" (120mm)
    Weight Al. Encl. Detector:max 8.7 lb (3.7 kg) / Source: max 8.58 lb (3.9 kg)
    St. Encl. Detector: max 13.4 lb (6.1 kg) / Source: max 13.84 lb (6.3 kg)
    Mechanical Design The 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
    Environmental Standards Meets MIL-STD-810C for Humidity, Salt & Fog, Vibration, Mechanical shock, High Temp, Low Temp
    Water and Dust Tight IP66 and 67 per EN60529
    NEMA 250 6P
    Hazardous Area Approvals
    ATEX (301DS, 302DS) SIRA 00ATEX 1161, EX II 2G EExd IIB + H2 T5 (70 ̊C)
    SIRA 00ATEX 1165, EX II 2G EExde IIB + H2 T5 (70 ̊C))
    UL (301DU, 302DU) UL No. E209870, Class I Groups C and D Hazardous Location
    FM (301DF, 302DF) Class I, Division 1, Groups B, C and D, Dust Ignition proof for Class II, Division 1, Groups E, F and G. Performance per Class no. 6325
    Reliability Approvals
    TUV (SIL-2) (301DS, 302DS) 968/EZ 443.00/10

      792247 Commissioning Kit for Spectrex SafEye Series 300 (Standard Mount). Includes alignment telescope, mode selector and function test filter plus tools in carry case. ..

      TD100246 Commissioning Kit for Spectrex SafEye Series 300 (Duct Mount). Includes alignment telescope, mode selector and function test filter plus tools in carry case. ..

      794079-1 USB / RS485 converter kit for PC / laptop USB port, incl. software for Spectrex 200, 300 and 400 Series..

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    > ACCESSORIES > SAFEYE OPEN PATH :    1 Items found.

    Commissioning Kit for Safeye Quasar 900 open path gas detectors, includes: alignment telescope w/ 900 eye piece, calibration magnet, test filter, hand tools and carry case.



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