Gastech

SafEye 700 consists of an advanced Xenon Flash infrared transmitter (source) and infrared detector (receiver), separated over a line of sight from 13 ft. (4 m) up to 460 ft. (140 m) to detect and quantify flammable gas presence, even when challenged by extremely harsh environments where dust, fog, rain, snow or vibration can cause a high reduction of signal.

The SafEye 700 analyzes atmospheric absorption at three selected spectral bands, two in a region where the target gas absorbs and one where it does not absorb. The ratio between these absorption lines can provide accurate information of the gas concentration along an optical path.

The reference sensor detects beam blockage, compensates for changing humidity and detects failed light source or dirty optics.

SafEye’s source and detector units are both housed in low profile, rugged, stainless steel, ATEX approved enclosures. The main enclosure is approved EExd flameproof with an integral, segregated, EExe increased safety terminal section. The hand-held communication unit can be connected in-situ via the intrinsically safe approved (EExia) data port on the detector. The combined ATEX approval is therefore Ex II 2(1) GD, EExde ia [ia] IIC T5 (55°C).

SafEye 700 includes heated optics on the transmitter (source) and receiver (detector) to address icing, condensation and snow.

Modern accessories include an Intrinsically Safe approved, Hand-Held Unit which is an all-in-one Diagnostic / Calibration / Interrogation plug-in unit that assists one-person installation and maintenance.

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 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 effected by chemicals.

• Rugged Structure

Stainless steel 316L, IP66/67, Zone 1 ready design.

Applications

• Offshore Oil & Gas drilling and production
• Petrochemical and Chemical storage and production areas
• Storage & loading of hazardous materials and waste areas
• Engine & Turbine air intake and modules
• LNG-LPG storage, pumping and filling
• Fence-line emission monitoring
• Storage Tank Farm protection
• Paint industries, including paint-booths
• Bus terminals (natural gas powered)
• Waste disposal and processing