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2451T Datasheet(PDF) 1 Page - Gamewell-FCI by Honeywell |
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2451T Datasheet(HTML) 1 Page - Gamewell-FCI by Honeywell |
1 / 2 page DESCRIPTION The System Sensor 2451 Series photoelectronic smoke de- tectors are specifically designed to meet the performance re- quirements of fire detection/alarm systems. The 2451 and 2451T detectors use state-of-the-art optical sensing cham- bers and are designed so that LED failure will not cause an alarm. The detectors are designed to provide open area detec- tion and when installed in a two-wire base are compatible with FCI fire alarm control panels. The detectors operation and sensitivity can be tested in place. The Model 2451T unit has the same specifications as the Model 2451, but also fea- tures a built-in fixed temperature (135 o F) thermal detection unit. The detectors are of plug-in construction and plug into the same base as the 1451 series ionization smoke detectors, making both models interchangeable. Bases are available for two-wire, four-wire, and 120 VAC four-wire operation. Two visible LEDs on each detector flash every ten seconds indicating that power is being applied to the detector. The LEDs light steadily when the detector is in alarm. A remote LED annunciator is available as an optional accessory. The 2451 is UL Listed for mounting inside ducts up to a ve- locity of 3,000 FPM. Sensitivity testing is performed either by applying a test magnet or inserting a calibrated test card according to the test procedures. Field metering of detector sensitivity may be performed with the aid of a voltmeter and Test Kit, MOD 400R. APPROVALS TECHNICAL SPECIFICATIONS Nominal sensitivity 3.0 %/ft. Operating voltage 8.5 - 35 VDC (24 VDC nominal) Operating temperature 32 o to- 120o F(0o to 49o C) Operating humidity 0%-93% relative humidity Air velocity 3,000 feet per minute maximum Construction Off-white flame retardant plastic Diameter 6.2 inches (15.7 cm) Height 3.3 inches (8.2 cm) Weight 0.5 lb. (277 g) 2451 SYSTEM SENSOR PHOTOELECTRONIC SMOKE DETECTOR 9020-0585/Ver. 1.1 16 Southwest Park, Westwood, MA 02090 USA TEL: (781) 471-3000 FAX: (781) 471-3099 FEATURES · Easy plug-in of the Head to Base · Built-in Tamper-resistant Feature · Built-in Test Switch · Built-in Visual Alarm Indicators · 360o View Angle Of Alarm LEDs · Compatible with FCI Control Panels · Field Metering of Detector Sensitivity · Removable Insect Screen and Cover for Field Cleaning · Sealed against Dirt, Insects, and Back Pressure · Insect-resistant screening (.020"/.508 mm openings) An ISO 9001 Certified Company |
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