Hydrogen (H2) Gas Sensor for detecting H2 leaks in battery rooms and other industrial environments.
|Enclosure||Polycarbonate: Injection-molded, NEMA 3RX washdown duty, with hunged lid and captive screw
Stainless Steel: 18 GA, NEMA 3RX washdown duty, with hinged lid and captive screw
|Dimensions||7.7″ H x 6.7″ W x 3.8″ D|
|Wiring Connection||3-conductor, shielded, stranded, ≥ 20 AWG cable (Belden 8772 or equivalent) up to 1500 ft|
|Terminal Block Plug (Field Wiring)||26-12 AWG, torque 4.5 lbs-in|
|Output Signal||4-20 mA linear output|
|Input Power||+24 vdc|
|Response Time||T50: < 10 seconds | T90: < 30 seconds|
|Zero Drift / month||< 0.1% full scale|
|Span Drift / month||< 3% full scale|
|Repeatability||+/- 1% full scale|
|Operating Temperature||-20°F to +120°F|
|Operating Humidity||5-100% condensing|
|Certification||SGS listed to UL 61010-1, and CSA C22.2 No. 61010-1-12|
|Warranty||2 years sensing element and transmitter|
The GG-H2-EC utilizes proven electrochemical sensor technology for fast and accurate detection. The standard detection range provides real-time continuous monitoring of hydrogen concentrations accurately down to 200 ppm (0-2,000 ppm range), with no false alarms.
The intelligent internal temperature control of the GG-H2-EC provides optimum temperature control for extended cell life. The high-quality injection molded polycarbonate enclosure offers excellent chemical corrosion protection and high impact resistance.
The GG-H2-EC provides an industry standard linear 4-20 mA output signal compatible with most gas detection systems and PLCs. The output signal is not affected by drastic temperature variations or other atmospheric conditions.
The International Fire Code section 608.6.1 states “the ventilation system shall be designed to limit the maximum concentration of hydrogen to 1% (25%LEL) of the total volume of the room” or “continuous ventilation shall be provided at a rate of not less than 1 cfm per square foot of floor area in the room”.
When using the GG-H2-EC in combination with the CTI controller line (or any other 4/20 mA input device), exhaust fan activation will prevent dangerous accumulation of explosive hydrogen gas concentrations. Since continuous ventilation can add up to huge costs, activating exhaust fans only when necessary can amount to thousands of dollars a year in energy savings for your company.
Every circuit board is sealed forever in potting compound, protecting electronic components and copper tracing from corrosion. A specially vented chemical-resistant polycarbonate enclosure protects the sensor from accidental damage, weather, and direct hose-hits from clean-up crews.
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