DESCRIPTION

The System Sensor 1151 low profile ionization type smoke

detectors are specifically designed to meet the performance

requirements of fire detection/alarm systems. The 1151 ion-

ization detector uses a state-of-the-art, dual unipolar sensing

chamber. The detector is designed to provide open area de-

tection and, when installed in a two-wire base, is compatible

with FCI fire alarm control panels. The detector’s operation

and sensitivity can be tested in place.

The 1151 detector is of plug-in construction and plugs into

the same base as the System Sensor 2151photoelectronic

smoke detector, making both models interchangeable. Bases

are available for two-wire, four-wire, 120 VAC four-wire op-

eration and also with an audible sounder.

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 1151 detector is Listed for use inside ducts up to a ve-

locity of 500 FPM.

Functional testing is performed by placing a test magnet

against the cover. The LED on the detector should light

within 30 seconds.

Field metering of detector sensitivity may be performed

with the aid of a voltmeter and Test Kit, MOD 400R.

APPROVALS

SPECIFICATIONS

Sensitivity

1.9 %/ft. (nominal)

Operating voltage

15 - 32 VDC peak

Standby current

200 uA max. avg.

Operating temperature

32 to 120

Relative humidity

10 to 93 % (non-condensing)

Air velocity

500 feet per minute maximum

Construction

Off-white flame retardant plastic

Diameter

4 inches (10.2 cm)

Height

1.7 inches (4.2 cm)

Weight

3.6 oz. (104 g)

1151

SYSTEM SENSOR

LOW PROFILE, IONIZATION

PLUG-IN SMOKE DETECTOR

9020-0582/Ver. 1.1

16 Southwest Park, Westwood, MA 02090 USA TEL: (781) 471-3000 FAX: (781) 471-3099

Specifications are provided for information only, are not intended to be used for installation purposes, and are believed to be accurate. However, no responsibility is assumed by Fire Control

Instruments, Inc. for their use. Specifications subject to change without notice.

© 2003 All Rights Reserved

FEATURES

· Unique Dual Unipolar Sensor

Provides Exceptional Stability

· Low Profile Construction

· Easy plug-in of the Head to Base

· Tamper-resistant Feature

· Test Switch

· Compatible with FCI Control Panels

· Audible Sounder Base (Optional)

· Field Metering of Detector Sensitivity

· Removable Insect Screen and Cover

for Field Cleaning

· Insect-resistant Screening

(.020"/.508 mm openings)

An ISO 9001 Certified Company