HY-ALERTA^® 2620 Explosion Proof Area Hydrogen Monitor

Applications

H2scan’s 2620 Explosion Proof Area Hydrogen Monitor provides hydrogen-specific leak detection and measurement for hydrogen concentrations as low as 4000 ppm and can be scaled to any concentration up to 5% hydrogen by volume, a range representing 10% to 125% of hydrogen’s low flammability limit. The monitor is designed for either ceiling or wall mount. H2scan’s hydrogen-specific sensor technology has no cross sensitivity to other combustible gases, thus eliminating false positive alarms and ensuring safety system reliability.

• Battery Rooms
• Control Rooms/Analyzer Buildings
• Laboratories
• Alternative Energy
• Hydrogen Cooled Generators and Turbines
• Industrial Gas Supply and Hydrogen Production
• Furnaces and Manufacturing
• Other Applications

Advantages

• Highly reliable
• Low life cycle cost
• Easy to install and operate
• Minimal maintenance required
• No cross sensitivity to combustible gases
• Not vulnerable to poisoning like other detectors
• Wide hydrogen-specific detection range
• Works in air, oxygen, or inert gas background
• Non-consumable solid state technology
• No cross sensitivity to combustible gases
• Not vulnerable to poisoning like other detectors
• Field-configurable settings
• Will not saturate with exposure to hydrogen

Configuration Details

Performance

• Hydrogen Sensitivity Range: 0.4% to 5.0% hydrogen by volume, 10% to 125% hydrogen lower flammable limit
• Response Time: T90 < 60 sec
• Ingress Protection: IP64 capable
• Calibration Interval: 90 days
• Product Life Expectancy: 10 years
• Accuracy: ± (3% of reading + 0.2) percent hydrogen by volume

Interface Options

• Input Voltage Range: 90 VAC to 240 VAC
• Input Power: 15W
• Analog Outputs:
  • Output Currents
    • 4 mA to 20 mA
    • 0 mA to 20 mA
    • User-specific mA range
• Serial Communication Options: RS232 or RS422
• Relay Contacts: Two programmable relays and one fault relay with both normally open (N.O.) and normally closed (N.C.) contacts:
  • 5A/240VAC
  • 5A/ 30 VDC

Dimensions

• Width: 13.8 cm (5.4 in)
• Length: 19.2 cm (7.5 in)
• Depth: 13.0 cm (5.7 in)

Operating Conditions

• Operating Temperature Range: -20ºC to 55ºC
• Storage Temperature Range: -30ºC to 80ºC
• Operating Humidity: 0% to 95% RH (non-condensing)
• Calibration Background Gas: Air

Adapter Fittings

• 1/4 in. Tube for Calibration Gas Connection

Certifications

General
2620	UL 508, 1203 USC – Class I, Division 1, Groups B, C, and D Hazardous (Classified)
Remote	UL 913 CAN/CSA C22.2 No. 157-92

Technical Information