The various chemical vapors, acids and bases used in the semiconductor manufacturing wet benches pose a high potential for costly fires. Fires may result in costly damage to equipment, inventory and clean room facili- ties. Personnel injury and costly business interruptions are also likely. Factory Mutual requires
The Model 3200 easily adapts to most standard fire extinguishing systems and wet bench systems. It uti- lizes relay output for alarm and trouble and does not require special controllers or wiring / junction boxes.
The Model 3200 Flame Detector uses proven, stable UV/IR technology to continuously monitor for flame in wet bench applications. Using
Model 3200 Series Wet Bench Flame Detector
rejecting common false alarms. Continuous self diag- nostics perform tests of the detector operation. Each flame detector is tested to respond to a
The standard Model 3200 has a sealed polypropylene housing designed to an IEC 529 IP67 rating for pro- tection from a wide variety of acids and solvents. Thus occasional submersion by these chemicals will not dam- age the detector. The detector is rated over a wide operating temperature range for those applications where drying or heating elements are used. A version utilizing Polyvinylidene Fluoride (PVDF) is also avail- able.
Model 3200 Dimensions
Detector Response to Various Fuels
Fuels | Distance | Fire Size | Response Time |
Polypropylene | 8 ft. | 4 in. dia. | Less than 3 sec. |
Isopropyl Alcohol | 10 ft. | 4 in. dia. | Less than 3 sec. |
Heptane | 40 ft. | 1 sq. ft. | Less than 3 sec. |
MEK | 15 ft. | 4 in. dia. | Less than 3 sec. |
Silane | 30 ft. | 18 in. jet | Less than 3 sec. |
Hydrogen | 15 ft. | 18 in. jet | Less than 3 sec. |
Field of View
Sierra Monitor Corp 1991 Tarob Court Milpitas, CA 95035 USA (408)