Smoke detector 2151 series

The System Sensor 2151 low profile photoelectronic smoke detector is specifically designed to meet the perfor- mance requirements of the fire detection/alarm systems. The 2151 detector uses a state-of-the-art optical sensing chamber and is designed so that if the LED fails, it will not cause an alarm. The detector is designed to provide open area detection, and when installed in a two-wire base, is compatible with the Gamewell-FCI fire alarm control pan- els. The detector's operation and sensitivity can be tested in place. The 2151 detector is designed with plug-in construction and plugs into the same base as the 1151 ionization smoke detector, making both models interchangeable. Bases are available for the following types of operation. • two-wire • 120 VAC four-wire • four-wire • an audible sounder Two visible LEDs on each detector flash approximately every ten seconds indicating that the 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 2151 is UL® Listed for mounting inside ducts up to a velocity of 3.000 FPM. To perform functional testing, place a test magnet against the cover. The LED on the detector should light within 30 seconds. To perform the field metering of the detector sensitivity, use a voltmeter and Test Kit. Part Number. MOD 400R.