S Y S T E M
74- 3346
ADT-HRSI
Intelligent Heat Detector
SPECIFICATION DATA
FEATURES
• 70ft (21.3 meter) spacing
• 9°C (15°F) per minute rate-of-rise and 57°C (135°F)
fixed temperature alarm threshold
• Intelligent detector with integral microprocessor
• Non-volatile memory
• Automatic device mapping
• Electronic addressing
• Identification of defective detectors
• Twin status LEDs
• Standard, relay, and fault isolator mounting bases
• Designed and manufactured to ISO 9001 standards
DESCRIPTION
Honeywell's Signature Series Model ADT-HRSI Intelligent
Heat Detectors gather analog information from their fixed
temperature and/or rate-of-rise heat sensing elements and
converts it into digital signals. The detector's on-board
microprocessor measures and analyzes these signals. It
compares the information to historical readings and time
patterns to make an alarm decision. Digital filters remove
signal patterns that are not typical of fires. Unwanted alarms
are nearly eliminated.
The microprocessor in each detector provides four additional
benefits; self-diagnostics and history log, automatic device
mapping, stand-alone operation 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.
The information stored in the detector's memory includes:
- Detector serial number, address, and type
- Date of manufacture, hours of operation, and last
maintenance date
- Current detector sensitivity values and the extent of
environmental compensation
- Original detector sensitivity values upon manufacturing
- Number of recorded alarms and troubles
- Time and date of last alarm
- Analog signal patterns just before the last alarm
- Up to 32 possible trouble codes which may be used to
diagnose faults.
In the unlikely event that an unwanted alarm does take place,
the history file can be called up to help isolate the problem
and prevent it from happening again.
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 at its original
location remains relevant and intact.
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.
EN0C-0746E 0599R0-OB
ADT-HRSI INTELLIGENT HEAT DETECTOR
Device mapping allows the Signature loop controller to
discover:
- Unexpected additional device addresses
- Missing device addresses
- Changes to the wiring in the circuit.
Stand-alone Operation:
A decentralized alarm decision by the detector is guaranteed.
On-board intelligence permits the detector to operate in
stand-alone mode. If loop controller CPU communications fail
for more than 4 seconds, all devices on that circuit go into
stand-alone mode. The circuit acts like a conventional alarm
receiving circuit. Each detector on the circuit continues to
collect and analyze information from its surroundings. The
ADT-HRSI detectors alarm if the ambient temperature
increases 57°C (135°F) or if the temperature increases at a
rate exceeding 9°C (15°F) per minute. If the detector is
mounted to a relay base, the relay operates.
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.
The lower baud rate offers several advantages including:
- Less sensitivity to circuit wire characteristics
- Less sensitivity to noise glitches on the cable
- Less emitted noise from the analog wiring
- Twisted or shielded wiring is not required.
Installation Spacing:
The ADT-HRSI detector is rated for installation at up to 70ft
(21.3m) spacing. These detectors may be installed in rooms
with an ambient temperature of up to 100°F (38°C).
Status LEDs:
Twin LEDs are visible from any direction. A flashing GREEN
LED shows normal system polling from the loop controller. A
flashing RED LED means the detector is in alarm state. Both
LEDs on steady shows alarm state - stand- alone mode.
Electronic Addressing:
The loop controller electronically addresses 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.
Installation:
Signature series detectors mount to North American 1-gang
boxes, 3-1/2 in or 4 in octagonal boxes and to 4 in square
electrical boxes 1-1/2 in (38 mm) deep. They also mount to
European BESA and 1-gang boxes with 60.3 mm fixing
centers.
Honeywell recommends that this detector be installed
according to local fire alarm codes.
NOTE:
- 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
heat cannot reach the detector. Heat 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
ionization and photoelectric smoke sensors. The heat
sensor by itself does NOT provide life safety protection.
Under no circumstances should heat detectors be relied
upon as the sole means of fire protection.
Testing and Maintenance:
Each detector automatically identifies when it is defective and
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 should be planned to meet local
codes.
Normal green LED activity is not distracting to building
occupants, but can be quickly spotted by a maintenance
technician.
Quality and Reliability:
Honeywell detectors are manufactured to strict international
ISO 9001 standards. All electronics utilize surface mount
technology (SMT) for smaller size and greater immunity to
RF noise. A conformal coating is used for humidity and
corrosion resistance. All critical contacts are gold plated.
74-3346 2
ADT-HRSI INTELLIGENT HEAT DETECTOR
Ion/ Photo/ Heat
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 1gang boxes and to 3-1/2 in or 4 in octagon boxes, 1-1/2 in
(38 mm) deep. They also mount to European BESA and
1-gang boxes with 60.3 mm fixing centers.
Removing a detector from its base (except isolator base)
does not affect other devices operating on the same circuit.
Standard Base SIGA-SB:
This is the basic mounting base for Honeywell Signature
Series detectors. The SIGA-LED Remote LED is supported
by the Standard Base.
Relay Base ADT-RB:
This base includes a relay. Normally open or closed
operation is selected during installation. The dry contact is
rated for 1 amp (pilot duty) at 30 Vdc. The relay's position is
supervised to avoid accidentally jarring it out of position. The
relay base does not support the SIGA-LED Remote LED.
The relay is controlled by the detector and operates as
follows: at system power-up or reset, the relay is deenergized.
Isolator Base ADT-IB, ADT-IBS:
This base includes a built-in line fault isolator. A detector
must be installed for it to operate. The integral isolator relay
is controlled by the detector or the loop controller. A
maximum of 96 isolator bases can be installed on one
circuit. 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 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.
In Class A operation, the process repeats beginning on the
other side of the loop controller.
Remote LED SIGA-LED:
The remote LED connects to the SIGA-SB Standard Base
only. It features a North American size 1-gang plastic
faceplate with a white finish and red alarm LED.
SIGA-TS Trim Skirt:
Supplied with 4 in bases, it can also be ordered separately to
use with the other bases to help hide surface
imperfections not covered by the smaller bases.
When a detector is installed in the base with the power on,
the relay energizes for 4 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.
Table 1. Test Fires.
Test Fire Type of Sensor
ADT-ISI
Ion
Open Wood Optimum Unsuitable Optimum Very Suitable Optimum
Wood Pyrolysis Suitable Optimum Unsuitable Optimum Optimum
Smoldering Cotton Very Suitable Optimum Unsuitable Optimum Optimum
Polyurethane Foam Very Suitable Very Suitable Suitable Very Suitable Optimum
n-Heptane Optimum Very Suitable Very Suitable Optimum Optimum
Liquid Fire without Smoke Unsuitable Unsuitable Optimum Very Suitable Very Suitable
ADT-PSI
Photo
Application:
Table 1 below shows six standard test fires used to rate the
sensitivity of smoke and heat detectors. The table indicates
that no single sensing element is suited for all test fires.
ADT-HRSI
Rate-of Rise/
Fixed Temp.
ADT-PHSI
Photo/ Heat
3D
ADT-IPHSI
4D
3 74-3346
ADT-HRSI INTELLIGENT HEAT DETECTOR
74-3346 J.S. 12-99
SPECIFICATIONS
Heat Sensor:
Combination fixed temperature and rate of rise, alarms at
57°C (135°F) ambient or temp. increases greater than
9°C (15°F) per min.
Detector Spacing:
70ft (21.3m) center to center
Environmental Limits:
Temperature: 32° to 100°F (0° to 38°C)
Humidity: 0 to 93% rh, non-condensing
Voltage:
15.2 to 19.95 Vdc (19 Vdc nominal)
Operating Current:
Stand-by: 45µA at 19V
Alarm: 45µA at 19V
Emergency stand-alone alarm mode: 18mA
Pulse current: 100µA (100 msec)
During communication: 9 mA max.
Construction:
High impact engineering polymer
Finish:
White
Compatible Mounting Bases:
SIGA-SB standard base
ADT-RB relay base
ADT-IB and ADT-IBS isolator base
LED Operation:
On-board green LED: Flashes when polled
On-board red LED: Flashes when in alarm
Both LEDs: On steady when in alarm (stand-alone)
Compatible remote red LED:
Flashes when in alarm
Compatibility:
Signature loop controller
Address Requirements:
1 device address
Accessories:
SIGA-SB: Detector mounting base
ADT-RB: Detector mounting base with relay
ADT-IB: Detector mounting base with fault isolator
ADT-IBS: Same as above, with loop continuity switch
SIGA-LED: Remote alarm LED
SIGA-TS: Trim skirt (supplied with 4in bases)
Home and Building Control Home & Building Control European Centre of Excellence
Honeywell Inc. Honeywell GmbH
Honeywell Plaza Honeywellstrasse Lovelace Road, Southern Industrial Area
P.O. Box 524 63477 Maintal 1 Bracknell, Berkshire, RG12 8WD
Minneapolis MN 55408-0524 Germany United Kingdom
EN0C-0746E 0599R0-OB Printed in U.S.A.
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