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1.4
1.4.1
1.4.2
1.4.3
1.4.4
HONEYWELL
Overview
Model SS4-AI Infrared Flame Detector
The Model SS4-AI Infrared (IR) Flame Detectors are micro-computerized
devices that see the visible and infrared spectral bands. The SS4-AI
Detector Module is contained in an Explosion-Proof and Weather-Proof
housing which is approximately 4 3/4 inches in diameter and 4 3/4 inches
long. The housing has two integral 3/4 inch NPT conduit openings for
wiring and an optional Swivel Mount (Model SM4) for greater flexibility in
mounting locations.
There are two (2) LED's on the Model SS4-AI Detector that indicate the
state of the Detector. During normal operation both of the LED's blink will
every 10 seconds.
If a Model SS4-AI Detector has a Fault, it de-energizes its Fault relay and
turns on one (1) of its LED's. (The LED will not light if the Fault is a "No
Power Fault".) If the Fault condition is cured, such as a "Low Voltage
Fault", the Detector will automatically return to Normal Operation. Faults
caused by Excessive Input Voltage or temperatures outside the operating
temperature range require factory re-certification. Re-certification required
Faults are indicated by both LED's rapidly blinking. (about 2 Hz.)
If a Model SS4-AI Detector alarms to a fire, it energizes its Fire relay and
turns on its two LED's in the following sequence. One LED is turned on
immediately and the second LED will rapidly blink for several seconds
indicating that the Detector's FirePic is being permanently stored in the
Detector's solid-state memory. (FirePic is the several seconds of Detector
data that preceded an alarm event.) Once the FirePic data is stored the
second LED will remain on.
Detection Range
The detection range of the detector is field adjustable between 15 (fifteen)
and 45 (fourtyfive) feet to an industry-standard one square foot gasoline
pan fire within 5 seconds. Each detection range is calibrated to a one
square foot fire. The Detector's ranges are optimized but not limited to a
specific distance. A larger size fire outside the set range may cause the
Detector to alarm based on the "Inverse Square Law" for radiated energy.
Field-of-View
120 degrees circular - minimum. The fire emissions received by the
detector diminish at extreme range and edges of the field-of-view. It is
recommended that the detector be pointed at the fire threat area for the
fastest response times to the smallest size fire. When multiple detectors
are used to cover large areas the Field-of-Views should overlap to insure
complete coverage of the fire threat area. The Field-of-View is not limited
to 120 degrees, larger fires outside the 120 degree Field-of-View may
cause the detector to alarm.
Configuration Settings
The SS4-AI Detector may be reconfigured in the field for special
applications. The configuration of the Detector is set from a dip switch
located on the middle circuit board of the SS4-AI Module. These settings
OPERATOR MANUAL //
SECTION 1: FAMILIARIZAT ION
5
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