To Order Call Toll Free: HGD-2000 Hydrogen Gas Detector Model # HGD-2000 Product Overview The HGD-2000 Hydrogen Gas Detector allows the user to monitor hydrogen gas buildup in storage rooms and facilities that house batteries. The HGD2000 is easy-to-use and easy-to-install. The detector has a terminal block for connection to single-phase AC power source and two internal relays. The relays can be used to switch a remote exhaust fan and/or alarm on and off. If the concentration of hydrogen gas in the air surrounding the sensor reaches 1% by volume, the yellow LED will light and the 1% internal relay will close. A four second delay prevents false activation. If the concentration reaches 2%, the red LED will flash, the internal 80 db warning alarm will sound, and the 2% internal relay will close. Compliance with IEEE Std 450 Compliance with National Fire Protection Agency (NFPA) Article 64 Compliance with Uniform Building Code (UBC) Section 6400 Automatic Operation and Continuous 24/7 Monitoring Long Lifespan for Reliable Monitoring 12 VDC Operation Voltage High Sensitivity and Stability Inexpensive protection for equipment and personnel Save insurance costs - reduce insurance premiums when placed in battery charging rooms Utilities and Power Plants UPS Power Systems Fuel Cell Test Stations Nuclear Waste Reforming Hydrogen Refueling Stations Fire Department Battery Suppliers Battery Charging Rooms Motive Power Golf Cart Technical Specifications Alarm Relay: Mounting: Operating Environment: Power Requirements: Dimensions: (2) form C contacts provided, user-configurable connections (4) 4.5 mm (3/16 in) screws Temperature: -10 – 40 °C (14 – 104 °F) 85 – 265 VAC, 50/60 Hz (standard) 17 – 60 VDC (upon request) 178 x 120 x 55 mm (7 x 4.75 x 2.5 in) HGD-2000 User Manual Optional: Control Box and cable for remote alarm control and display Optional: Junction Box Hydrogen Gas Detector (Dual-Relay) Remote control box with connection cable