The HGD-2000 H2 Hydrogen Detector and Sensor allows the user to monitor hydrogen gas buildup in storage rooms and facilities that house batteries. The HGD-2000 is easy-to-use and easy-to-install. The detector has a terminal block for connection to a 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.
| Alarm Relay | (2) form C contacts provided, user-configurable connections |
|---|---|
| Mounting | (4) 4.5 mm (3/16 in) screws |
| Operating Environment | Temperature: -10 – 40 °C (14 – 104 °F) |
| Power Requirements | 85 – 265 VAC, 50/60 Hz (standard) 17 – 60 VDC (upon request) |
| Compliance | IEEE Standard 450; National Fire Protection Agency (NFPA) Article 64; NFPA 2: Hydrogen Technologies Code; Uniform Building Code (UBC) Section 6400; National Electric Code (NEC) Section 480.9 (A); NEC 501.125 (B); NEC 501.105 (1)-3 – use in Class 1 Division 2 Group B. |
| Dimensions | 178 x 120 x 55 mm (7 x 4.75 x 2.5 in) |