LIFE SAFETY & INCIDENT MANAGEMENT
Intelligent 3D
Multisensor
Detector
SIGA-PHS
EDWARDS Catalog u Intelligent Initiating
Overview
The Signature Series Model SIGA-PHS Intelligent 3D Multisensor
Detector gathers analog information from each of its two fire sensing elements (photoelectric and heat) and converts it into digital
signals. The detector’s on-board microprocessor measures and
analyzes these signals separately with respect to a third element
- Time. We call this technology 3D. It compares the information to
historical readings, time patterns, and several known fire characteristics to make an alarm decision. Digital filters remove signal
patterns that are not typical of fires. Unwanted alarms are virtually
eliminated.
Standard Features
• Integrates photoelectric smoke and 135 º F (57 º C) fixed-temperature heat sensing technologies
• Non-volatile memory
• Automatic device mapping
• Electronic addressing
• Environmental compensation
• Integral microprocessor - intelligent detector
• Wide 0.67% to 3.77%/ft. sensitivity range
• Twenty pre-alarm sensitivity values, set in 5% increments
• Identification of dirty or defective detectors
• Automatic day/night sensitivity adjustment
• Twin RED/GREEN status LEDs
• Standard, relay, fault isolator, and audible mounting bases
• Designed and manufactured to ISO 9001 standards
Note: Some features described here may not be supported by all control
systems. Check your control panel’s Installation and Operation Guide for
details.
MEA
7272-1657:
0126
S853
Signature Series Overview
The microprocessor in each detector provides four additional
benefits - Self-diagnostics and History Log, Automatic Device
Mapping, and Fast, Stable Communication.
Self-diagnostics and History Log - Each Signature Series
detector constantly runs self-checks to provide important maintenance information. The results of the self-check are automatically
updated and permanently stored in the detector’s non-volatile
memory. This information is accessible for review any time at the
control panel, PC, or by using the SIGA-PRO Signature Program/
Service Tool.
Automatic Device Mapping - The loop controller learns where
each device’s serial number address is installed relative to other
devices on the circuit. This mapping feature provides supervision
of each device’s installed location to prevent a detector from being
reinstalled (after cleaning etc.) in a different location from where it
was originally. The history log for the detector remains relevant and
intact regardless of its new location.
The Signature Series Data Entry Program also uses the mapping
feature. With interactive menus and graphic support, the wired circuits between each device can be examined. Layout or “as-built”
drawing information showing wire branches (T-taps), device types
and their address are stored on disk for printing hard copy. This
takes the mystery out of the installation. The preparation of as-built
drawings is fast and efficient.
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Fast Stable Communication - On-board intelligence means less
information needs to be sent between the detector and the loop
controller. Other than regular supervisory polling response, the detector only needs to communicate with the loop controller when it
has something new to report. This provides very fast control panel
response time and allows a lower baud rate (speed) to be used for
communication on the circuit.
Environmental Compensation - Detection sensitivity for the
SIGA-PHS is virtually independent of its installed environment and
its physical condition. Environmental compensation means each
sensing element adapts to long-term changes caused by dirt,
humidity, temperature, aging etc. It even compensates for small
amounts of normal ambient smoke.
Sensitivity Range - The SIGA-PHS has a sensitivity range or
window of 0.67 - 3.70% obscuration per foot. The installer selects
the detector’s ALARM sensitivity level. Five settings ranging from
the least sensitive at 3.5% obscuration/ft to the most sensitive at
1.0% obscuration/ft are available.
Automatic Day/Night Sensitivity Selection - Signature Series
detectors may be programmed for different sensitivities during day
and night periods. This allows the detector to be more sensitive
during unoccupied periods when lower ambient background conditions are expected.
Stability - The 3D detector’s sensitivity remains stable in wind
velocities up to 500 ft/min (2.53 m/sec). Ambient temperature has
very little affect on the detector. The detector may be installed in
rooms with ambient temperatures up to 100oF (38oC).
Electronic Addressing - The loop controller electronically ad-
dresses each detector, saving valuable time during system commissioning. Setting complicated switches or dials is not required. Each
detector has its own unique serial number stored in its on-board
memory. The loop controller identifies each device on the circuit and
assigns a “soft” address to that device’s serial number. If desired,
detectors can be addressed using the SIGA-PRO Signature Program/Service Tool.
Testing & Maintenance
Each detector automatically identifies when it is dirty or defective
and causes a “dirty detector” message. The detector’s sensitivity measurement can also be transmitted to the loop controller. A
sensitivity report can be printed to satisfy NFPA sensitivity measurements which must be conducted at the end of the first year
and every two years thereafter.
The user-friendly maintenance program shows the current state
of each detector and other pertinent messages. Single detectors
may be turned off temporarily, from the control panel. Availability of
maintenance features is dependent on the fire alarm system used.
Scheduled maintenance (Regular or Selected) for proper detector operation should be planned to meet the requirements of the
Authority Having Jurisdiction (AHJ). Refer to current NFPA 72 and
ULC CAN/ULC 536 standards.
Installation
Signature Series detectors mount to North American 1-gang
boxes, 3-1/2 inch or 4 inch octagon boxes, and to 4 inch square
electrical boxes 1-1/2 inches (38 mm) deep. They mount to European BESA and 1-gang boxes with 60.3 mm fixing centers.
Compatibility
The SIGA-PHS detectors are compatible only with the Signature
Loop Controller.
Application
Although photoelectric detectors have a wide range of fire sensing capabilities they are best suited for detecting slow, smoldering
fires. The table below shows six standard test fires used to rate
the sensitivity of smoke and heat detectors. The table indicates
SIGA-HRS and
Test Fire SIGA-PS Photo
Open Wood unsuitable optimum very suitable optimum
Wood Pyrolysis optimum unsuitable optimum optimum
Smouldering Cotton optimum unsuitable optimum optimum
Poly Urethane Foam very suitable suitable very suitable optimum
n-Heptane very suitable very suitable optimum optimum
Liquid Fire without
Smoke
unsuitable optimum very suitable very suitable
SIGA-HFS Rate-ofRise/ Fixed Temp.
that no single sensing element is suited for all test fires.
EDWARDS recommends that this detector be installed according
to latest recognized edition of national and local fire alarm codes.
SIGA-PHS
Photo Heat 3D
SIGA-IPHS
Ion/Photo/Heat 4D
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Not to be used for installation purposes. Issue 1
Typical Wiring
Max resistance
per wire
must not exceed
10 Ohms
DATA IN (-)
DATA IN (+)
From Signature Controller
DATA OUT (-)
DATA OUT (+)
To Next Device
Remote LED
The detector mounting bases accept #18 AWG (0.75mm2), #16 (1.0mm2), #14 AWG (1.5mm2), and #12 AWG (2.5mm²) wire sizes.
Note: Sizes #16 AWG (1.0mm2) and #18 AWG (0.75mm2) are preferred for ease of installation. See Signature Loop Controller catalog
sheet for detailed wiring requirement specifications.
Standard Detector Base, SIGA-SB, SIGA-SB4
Term Description
1 Not Used
2 DATA IN/OUT (+)
3 Not Used
4 DATA IN (-)
4 Remote LED (-)
5 Remote LED (+)
6 Not Used
7 DATA OUT (-)
Relay Detector Base, SIGA-RB, SIGA-RB4
Term Description
1 Normally-Open
2 DATA IN/OUT (+)
3 Common
4 DATA IN (-)
5 Not Used
6 Normally-Closed
7 DATA OUT (-)
CONTACT RATING
1.0 Amp @ 30 VDC
(Pilot Duty)
Isolator Detector Base, SIGA-IB, SIGA-IB4
Term Description
1 Not Used
2 DATA IN/OUT (+)
3 DATA IN (-)
4 Not Used
5 Not Used
6 DATA OUT (-)
7 Not Used
Accessories
All detector mounting bases have wiring terminals that are accessible from the “room-side” after mounting the base to the electrical
box. The bases mount to North American 1-gang boxes and to 3½
inch or 4 inch octagon boxes, 1½ inches (38 mm) deep. They also
mount to European BESA and 1-gang boxes with 60.3 mm fixing
centers. The SIGA-SB4, SIGA-RB4, and SIGA-IB4 mount to North
American 4 inch square electrical boxes in addition to the above
boxes. They include the SIGA-TS4 Trim Skirt which is used to cover
the “mounting ears” on the base. The SIGA-AB4G mounts to a 4”
sqare box only.
Standard Base SIGA-SB, SIGA-SB4 - This is the basic mount-
ing base for EDWARDS Signature Series detectors. The SIGA-LED
Remote LED is supported by the Standard Base.
Relay Base SIGA-RB, SIGA-RB4 - This base includes a relay.
SIGA-AB4G
Audible Base
SIGA-SB
Standard Base
SIGA-IB
Isolator Base
Normally open or closed operation is selected during installation.
The dry contact is rated for one amp (pilot duty) @ 30 Vdc. The
relay’s position is supervised to avoid accidentally jarring it out of
position. The SIGA-RB can be operated as a control relay if programmed to do so at the control panel (EST3 V. 2 only). The relay
base does not support the SIGA-LED Remote LED.
Audible Base SIGA-AB4G - This base is designed for use where
localized or group alarm signaling is required. When the detector
senses an alarm condition, the audible base emits a local alarm
signal. The optional SIGA-CRR Polarity Reversal Relay can be
SIGA-RB
Relay Base
SIGA-LED
Remote LED
Audible Detector Base, SIGA-AB4G
Volume setting
Default=High volume
Cut for low volume
24 Vdc in
From power supply or
previous base
From Signature controller or
Datain
previous device
DATA-
DATA-INDATA+
OUT
SIG+ SIG-
-
+
-
+
Tone setting
Default =Temporal pattern
Cut for steady tone
IN/OUT
-
+
-
+
To configure output volume
or tone, cut the circuit board
as shown.
24 Vdc out
To next base or EOL relay
Data out
To next Signature device
used for sounding to other audible bases on the same 24 Vdc
circuit.
Relay and Audible Bases operate as follows:
- at system power-up or reset, the relay is de-energized
- when a detector is installed in the base with the power on, the
relay energizes for four seconds, then de-energizes
- when a detector is removed from a base with the power on,
the relay is de-energized
- when the detector enters the alarm state, the relay is energized.
Isolator Base SIGA-IB, SIGA-IB4 - This base includes a built-in line
fault isolator for use on Class A circuits. A detector must be installed
for it to operate. The isolator base does not support the SIGA-LED
Remote LED.
The isolator operates as follows:
- a short on the line causes all isolators to open within 23 msec.
- at 10 msec intervals, beginning on one side of the Class A
circuit nearest the loop controller, the isolators close to provide
the next isolator down the line with power.
- when the isolator next to the short closes, it reopens within
10 msec.
The process repeats beginning on the other side of the loop controller.
Remote LED SIGA-LED - The remote LED connects to the
SIGA-SB or SIGA-SB4 Standard Base only. It features a North
American size 1-gang plastic faceplate with a white finish and red
alarm LED.
SIGA-TS4 Trim Skirt - Supplied with 4 inch bases, it can also
be ordered separately to use with the other bases to help hide
surface imperfections not covered by the smaller bases.
Page 3 of 4 DATA SHEET E85001-0247
Not to be used for installation purposes. Issue 1
LIFE SAFETY & INCIDENT MANAGEMENT
Contact us...
Email: edwards.fire@fs.utc.com
Web: Edwards-fire.com
Warnings & Cautions
This detector will not operate without electrical power. As fires frequently cause power
interruption, we suggest you discuss further safeguards with your fire protection specialist.
This detector will NOT sense fires that start in areas where smoke or heat cannot reach
the detector. Smoke from fires in walls, roofs, or on the opposite side of closed doors may
not reach the detector to alarm it. The heat sensor in this device only provides a source
of information to supplement the information provided by the photoelectric smoke sensor.
The heat sensor by itself does NOT protect life against fire and smoke.
EDWARDS is a UTC brand.
1016 Corporate Park Drive
Mebane, NC 27302
© 2016 United Technologies Corporation.
All rights reserved.
Specifications
Smoke Sensing
Element
Heat Sensing Element Fixed Temperature Alarms at 135ºF (57ºC) Ambient
Operating and Storage
Environment
Sensitivity Range ULI/ULC - 0.67% to 3.77%
User Selected Alarm
Sensitivity Settings
Pre-alarm Sensitivity 5% increments, allowing up to 20 pre-alarm settings
Operating Voltage 15.2 to 19.95 Vdc (19 Vdc nominal)
Operating Current Quiescent: 45µA @ 19 V. Alarm: 45µA @ 19 V. Pulse Current: 100 µA
Construction & Finish High Impact Engineering Polymer - White
Compatible Mounting
Bases
LED Operation On-board Green LED - Flashes when polled On-board Red LED -
Compatibility Use With: Signature Loop Controller
Address Requirements Uses one Device Address
Agency Listings UL, ULC, CSFM, MEA
UL Listed Spacing 30 ft
Photoelectric - Light Scattering Principle
Operating Temp: 32ºF to 100ºF (0ºC to 38ºC) Storage Temp: -4ºF to
140ºF (-20ºC to 60ºC) Humidity: 0 to 93% RH, Non-Condensing
Most Sensitive: 1.0%/ft. More Sensitive: 2.0%/ft. Normal: 2.5%/ft. Less
Sensitive: 3.0%/ft. Least Sensitive: 3.5%/ft.
(100 msec). During Communication: 9 mA maximum.
SIGA-SB Standard Base, SIGA-RB Relay Base, SIGA-IB Isolator Base,
SIGA-AB4, SIGA-AB4G Audible Bases
Flashes when in alarm. Compatible Remote Red LED (model SIGALED) Flashes when in alarm
Ordering Information
Catalog
Number
SIGA-PHS Intelligent 3D Multisensor Detector - UL/ULC Listed .5 (.23)
Accessories
SIGA-SB Detector Mounting Base
SIGA-SB4 4-inch Detector Mounting Base c/w SIGA-TS4 Trim Skirt
SIGA-RB Detector Mounting Base w/Relay
SIGA-RB4 4-inch Detector Mounting Base w/ Relay c/w SIGA-TS4 Trim Skirt
SIGA-IB Detector Mounting Base w/Fault Isolator
SIGA-IB4 4-inch Detector Mounting Base w/Fault Isolator c/w SIGA-TS4 Trim Skirt
SIGA-LED Remote Alarm LED
SIGA-
AB4G
SIGA-TS4 Trim Skirt (supplied with 4-inch bases) 0.1 (.04)
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Not to be used for installation purposes. Issue 1
Description Ship Wt.
Audible (Sounder) Base 0.3
lbs (kg)
0.2 (.09)
(0.15)
10-27-16
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