Addressable Multi-Detector with Base
TrueAlarm multi-sensor 4098-9754 combines the
established performances of a TrueAlarm photoelectric
smoke sensor with a fast-acting and accurate TrueAlarm
thermal sensor to provide both features in a single
sensor/base assembly.
Digital Communication of Analog Sensing.
Analog information from each sensor is digitally
communicated to the control panel where it is analyzed.
Photoelectric sensor input is stored and tracked as an
average value with an alarm or abnormal condition being
determined by comparing the sensor’s present value
against its average value. Thermal data is processed to
look for absolute or rate-of-rise temperature as desired.
Intelligent Data Evaluation. Monitoring each
photoelectric sensor’s average value provides a software
filtering process that compensates for environmental
factors (dust, dirt, etc.) and component aging, providing
an accurate reference for evaluating new activity. The
result is a significant reduction in the probability of false
or nuisance alarms caused by shifts in sensitivity, either
up or down.
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Description
General Operating Specifications
Communications and Sensor Supervisory Power IDNet or MAPNET II communications, auto-selected, 2 addresses per base
Communications and Sounder Power Connections Screw terminals for in/out wiring, 18 to 14 AWG
Remote LED Alarm Indicator
Current 1 mA typical supplied from communications, no impact to alarm current
LED Connections Color coded wire leads, 18 AWG
UL Listed Temperature Range 32° F to 100° F (0° C to 38° C)
Operating Temperature Range 15° F to 122° F (-9° C to 50° C)
Storage Temperature Range 0° F to 140° F (-18° C to 60° C)
Humidity Range 10 to 95% RH
Smoke Sensor Sensitivity Range 0.2 % to 3.7% per foot of smoke obscuration, selectable at host control panel
Smoke Sensor Air Velocity Range 0-4000 ft/min (0-1220 m/min)
Thermal Sensor Operation
(selected at host control panel)
Fixed alarm temperature setting of 135° F (57.2° C), and/or rate-of-rise temperature
alarm at 15° F (8.3° C) or 20° F (11.1° C), also selectable as utility monitoring
operation from 32° F to 122° F (0° C to 50° C), availability is panel dependent
Sensor, Bases, and Adapter Plate Color Frost White
Sounder Operation with 4098-9795 Multi-Sensor Sounder Base
Sounder Voltage 18 to 32 VDC from steady external source or from NAC
Alarm Current (sounder on) 20 mA @ 24 VDC, 24 mA maximum @ 32 VDC
Sounder Output 88 dBA minimum @ 10 ft (3 m) per UL Standard 464, Audible Signaling Appliances
and UL Standard 268, Smoke Detectors for Fire Protective Signaling Systems
Sounder Power Supervision
(selectable)
Supervised Select for continuous 24 VDC power, loss of power is communicated to panel
Unsupervised Select when connected to NAC for sounder power, NAC provides supervision
NAC Powered Operation When sounder is activated by control panel, sounder output tracks connected NAC to
allow synchronized coding (Temporal or March Time, etc.)
4098-9822 Unsupervised Relay Option
Externally Supplied Relay Voltage 18-32 VDC, steady source recommended (connects to remote LED leads)
Alarm Current 13 mA from separate 24 VDC supply
Contact Ratings, DPDT contacts for
resistive/suppressed loads
Power limited rating: 2 A @ 30 VDC
Non-power limited rating: 1/2 A @ 120 VAC
Relay Operation Tracks base LED status, relay is on with trouble or alarm at the base
