Évaluations - 4, GPA: 4.5
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Facilité d'utilisation
Personnel injury and costly business interruptions are also likely. Factory Mutual requires electro-optical flame detectors in the semiconductor wet benches to monitor for fire. These flame detectors must be suitable for the hostile chemicals used in the etching process (such as hydrofluoric, sulfuric, and hydrochloric acids). Furthermore, they must be tested and approved for fire response to FR polypropylene now used in the construction of wet benches as well as other fuels such as isopropyl alcohol. The Model 3200 easily adapts to most standard fire extinguishing systems and wet bench systems. It utilizes 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 state-of-the-art microprocessor controlled fire algorithms, the Model 3200 can recognize different types of flame signatures while Model 3200 Dimensions Field of View Model 3200 Series Wet Bench Flame Detector rejecting common false alarms. Continuous self diagnostics perform tests of the detector operation. Each flame detector is tested to respond to a 4-inch diameter isopropyl alcohol (IPA) fire at 10 feet with a 120o field of view. The standard Model 3200 has a sealed polypropylene housing designed to an IEC 529 IP67 rating for protection from a wide variety of acids and solvents. Thus occasional submersion by these chemicals will not damage 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 available. 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. Sierra Monitor Corp 1991 Tarob Court Milpitas, CA 95035 USA (408) 262-6611 (800) 727-4377 Fax: (408) 262-9042 Model 3200 Series Flame Detectors Specifications Sensitivity: 3.0 seconds to a 4 inch diameter isopropyl alcohol pan fire (on-axis) @ 10 feet Field of View: 120o full cone False Alarm Does not alarm to sunlight, Immunity: fluorescent lights, flashlights, or infrared heaters. Input Voltage: 12 to 30 volts DC typically 24 VDC Current Draw: @24 VDC; 28 mA normal mode; 54 mA alarm mode Operating Range Temperature: Operating: 32o to 167oF (0o to 75o C) Storage: -40o to 185o F ( -40o to 85o C) Humidity: 10 to 90% RH Typical Fire Type: FR & HB polypropylene and isopropyl alcohol Red LEDs: Two, indicating Normal Operation and Trouble/Alarm Alarm Relay: 1.0 amp @ 30 VDC resistive Trouble Relay: 1.0 amp @ 30 VDC resistive UV Sensor: Solar-blind Ultraviolet sensor - radiant energy in the 185 to 260 nm band IR Sensor: Solid state infrared sensor detecting IR energy in the .715 to 3.5 microns Acid/Solvent Resistant Surfaces: Housing: Dimensions: Weight: Approval: Additional Features Self-Test Models: Enhanced Models: Resistant to sulfuric acid, phosphoric acid, hydrofluoric acid, hydrochloric acid, ammonium hydroxide, nitric acid, isopropyl alcohol, deionized water, chromium phosphate, n-methyl-pyrrolidane, organic solvent base photoresist strips, ozone, etc. FR Polypropylene (IP67, UL94 flamability rating V0) or (Polyvinylidene Fluoride - PVDF available) (for models -2X and -3X) with a 6 foot pigtail (8 wires standard - 4 wires for the fire relay, 2 wires for the trouble relay and 2 wires fro the power) 3.4 x 4.2 x 1.0 inches (8.6 x 10.7 x 2.5 cm) 1 lb (0.5 Kg) FMApproved, CSFM 7210-1608:101 Incorporate internal self-test for UV lamp Incorporate internal self-test and a RS-485 computer interface for downloading real time spectral data pre-fire spectral data (includes 2 additional wires in pigtail) False Alarm and Fire Response "This table shows the detectors ability to tolerate both modulated and unmodulated false alarm stimuli and still to detect a fire in the presence of the false alarm source (all fire tests used a 1.75" diameter alcohol pan fire at 6 feet) False Alarms Source Distance Unmodulated Modulated Response Time to Fire Resistive Electric Heater 1320 Watt 6 Feet No Response No Response Less than 3 sec. Fluorescent Lights (2) 40 Watt Bulbs 6 Feet No Response No Response Less than 3 sec. Halogen Light 500 Watt 10 Feet No Response No Response Less than 3 sec. Incandescent Light 100 Watt 6 Feet No Response No Response Less than 3 sec. Ordering Information 3200-01 Standard, (Normally Closed -NC Trouble Relay) 3200-02 Self-test, (NC Trouble Relay) 3200-03 Enhanced, (NC Trouble Relay) 3200-04 Standard, with SealCon and Turk connectors (NC Fire, NC Trouble) Options: 3240-01 Flame Detector Tester (for Model 3200 Flame Detector) Sierra Monitor Corp 1991 Tarob Court Milpitas, CA 95035 USA (...