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
o
F (0 to 49
o
C)
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
·
360
o
View Angle Of Alarm LEDs
·
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
