20/20SH Hydrogen Flame Optical Detector The SharpEye Triple IR (IR3) Hydrogen Flame Optical Detector 20/20SH is a selfcontained, triple-spectrum flame detector specifically designed for the detection of hydrogen flames. The optical sensors and filters have been carefully selected to ensure the greatest degree of spectral matching to the radiant energy emitted by the hydrogen fire and the lowest degree of matching to non-fire stimuli. The well-known Triple Infrared Spectrum design incorporated in the various SharpEye Optical Flame Detectors has been further developed in this detector to include sensors with special filters with spectral bands typical to hydrogen flame emission main combustion product - water vapor (H2O) in the 1-4 microns band and reference filters to discriminate background radiation. This highly advanced detector uses programmable algorithms, which check the ratio and correlation of data, received by the three sensors. The microprocessor design allows for unique field programmability, making the 20/20SH highly immune to false alarms. The detector has applications in a wide range of industrial and commercial facilities that use hydrogen fuel cells, hydrogen gas generators and hydroxyfuels. As the hydrogen community moves towards commercialization, the new emerging use of hydrogen for automotive transportation requires special safety measures for the unique refilling stations, storage tanks and special hydrogen fuel cells handling facilities. * Note: The hydrogen flame detector is NOT designed to detect hydrocarbons fires. Main Features • Triple Spectrum Design • 4-20mA sink or source (3-4 wires) configuration • Sensitivity Selection • RS-485 Modbus Compatible • User Programmable Configuration • MTBF Minimum 100,000 Hours • Highly Immune to False Alarms • 3-Year Warranty • Automatic and Manual Built-In Test (BIT) • FM, ATEX Approved • Standard 4-wire Connection Applications • Hydrogen fuel cells industry - production, storage and transportation • Parking - special enclosed structures for hydrogen fuelled cars • Hydrogen vehicle refueling stations • Refineries - hydrogenation processes • Battery charging areas • Space industry - hydroxy propellant storage, transportation • Chemical process industry - production, storage, transportation • Stationary fuel cell systems in equipment enclosures 218 Little Falls Road | Cedar Grove | NJ 07009 | USA Tel: +1 (973) 239-8398 | 1 (800) 452-2107 (Toll free US only) | Fax: +1 (973) 239-7614 E-mail: [email protected] | Web-site: www.spectrex-inc.com

20/20SH General Specifications Spectral Response Detection Range (Highest sensitivity setting for a 8" (0.2m) wide, 20" (0.5m) high flame) Response Time Adjustable Time Delay Sensitivity Range Field of View Built-in-Test Temperature Range Humidity Three IR Bands Hydrogen Alcohol (Ethanol) Methanol 100 ft (30m) 60 ft (18m) 26 ft (8m) * Note: Hydrocarbon flames will not be detected at any range. Typical 5 sec. Up to 30 sec. (up to 20 sec. in compliance with FM requirements) 4 Sensitivity Ranges for a 8" (0.2m) wide, 20" (0.5m) high Hydrogen flame: 25 ft (7.5m), 50 ft (15m), 75 ft (22m) and 100...