1451

The System Sensor 1451 ionization type smoke detectors are specifically designed to meet the performance requirements of fire detection/alarm systems. The 1451 ionization detector uses a state-of-the-art, dual unipolar sensing chamber. The detector is designed to provide open area detection and when installed in a two-wire base is compatible with FCI fire alarm control panels. The detectors operation and sensitivity can be tested in place.

The 1451 detector is of plug-in construction and plugs into the same base as the 2451 Series photoelectronic smoke detectors, making both models interchangeable. Bases are available for two-wire, four-wire, and 120 VAC fourwire operation.

Two visible LEDs on each detector flash approximately 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 1451 detector is Listed for use inside ducts up to a velocity of 1,200 FPM.

Sensitivity testing is performed by placing a test magnet against the cover. The LED on the detector should light within 5 seconds.

Field metering of detector sensitivity may be performed with the aid of a voltmeter and Test Kit, MOD 400R.