Addressable Smoke / Heat Detectors

Model 4098-9714 Photoelectric Sensor
Model 4098-9733 & 4098-9734 Heat Sensors

TrueAlarm sensor bases contain integral addressable electronics that constantly monitor the status of the detachable photoelectric or heat sensors.

Each sensor’s output is digitized and transmitted to the system fire alarm control panel every four seconds.

Since TrueAlarm sensors use the same base, different sensor types can be easily interchanged to meet specific location requirements. This feature also allows intentional sensor substitution during building construction. When conditions are temporarily dusty, instead of covering the smoke sensors (causing them to be disabled), heat sensors may be installed without reprogramming the control panel. Although the control panel will indicate an incorrect sensor type, the heat sensor will operate at a default sensitivity providing heat detection for building protection at that location.

TrueAlarm analog sensing provides:

  • Digital transmission of analog sensor values via IDNet or MAPNET II two-wire communications

For use with the following Simplex products:

  • 4007ES, 4010, 4010ES, 4100ES, and 4100U Series control panels; and 4008 Series control panels with reduced feature set (refer to data
    sheet S4008-0001 for details)
  • 4020, 4100, and 4120 Series control panels, Universal Transponders, and 2120 TrueAlarm CDTs equipped for MAPNET II operation

Fire alarm control panel provides:

  • Peak value logging allowing accurate analysis of each sensor for individual sensitivity selection
  • Sensitivity monitoring satisfying NFPA 72 sensitivity testing requirements; automatic individual sensor calibration check verifies sensor integrity
  • Automatic environmental compensation, multi-stage alarm operation, and display of sensitivity directly in percent per foot
  • Ability to display and print detailed sensor information in plain English language

Photoelectric smoke sensors provide:

  • Seven levels of sensitivity from 0.2% to 3.7% (refer to additional information on page 3)

Heat sensors provide:

  • Three fixed temperature sensing thresholds: 135° F, 155° F and 190° F
  • Rate-of-rise temperature sensing
  • Utility temperature sensing
  • Listed to UL 521 and ULC-S530

General features:

  • Operation is for ceiling or wall mounting
  • Listed to UL 268 and ULC-S529
  • NEMA 1 rated. See TrueAlarm Analog Sensing Product Selection Chart for more information.
  • Louvered smoke sensor design enhances smoke capture by directing flow to chamber; entrance areas are minimally visible when ceiling mounted
  • Designed for EMI compatibility
  • Magnetic test feature is provided
  • Different bases are available to support a supervised or unsupervised output relay, and/or a remote LED alarm indicator

Additional base reference:

  • For isolator bases, refer to data sheet S4098-0025
  • For sounder bases, refer to data sheet S4098-0028
  • For photo/heat sensors, refer to data sheet S4098-0024 (single address) and S4098-0033 (dual address)

Digital Communication of Analog Sensing.
TrueAlarm analog sensors provide an analog measurement digitally communicated to the host control panel using Simplex addressable communications. At the control panel, the data is analyzed and an average value is determined and stored. An alarm or other abnormal condition is determined by comparing the sensor’s present value against its average value and time.

Intelligent Data Evaluation.
Monitoring each sensor’s average value provides a continuously shifting reference point. This software filtering process compensates for environmental factors (dust, dirt, etc.) and component aging, providing an accurate reference for evaluating new activity. With this filtering, there is a significant reduction in the probability of false or nuisance alarms caused by shifts in sensitivity, either up or down.

Control Panel Selection.
Peak activity per sensor is stored to assist in evaluating specific locations. The alarm set point for each TrueAlarm sensor is determined at the host control panel, selectable as more or less sensitive as the individual application requires.

Timed/Multi-Stage Selection.
Sensor alarm set points can be programmed for timed automatic sensitivity selection (such as more sensitive at night, less sensitive during day). Control panel programming can also provide multi-stage operation per sensor. For example, a 0.2% level may cause a warning to prompt investigation while a 2.5% level may initiate an alarm.

Sensor Alarm and Trouble LED Indication.
Each sensor base’s LED pulses to indicate communications with the panel. If the control panel determines a sensor is in alarm, or is dirty or has some other type of trouble, the details are annunciated at the control panel and that sensor base’s LED will be turned on steadily. During a system alarm, the control panel will control the LEDs such that an LED indicating a trouble will return to pulsing to help identify the alarmed sensors.

Base mounted address selection:

  • Address remains with its programmed location
  • Accessible from front (DIP switch under sensor)

General features:

  • Automatic identification provides default sensitivity when substituting sensor types
  • Integral red LED for power-on (pulsing), or alarm or trouble (steady on)
  • Locking anti-tamper design mounts on standard outlet box
  • Magnetically operated functional test

4098-9792, Standard Sensor Base

4098-9789, Sensor Base with wired connections for:

  • 2098-9808 Remote LED alarm indicator or 4098-9822 relay (relay is unsupervised and requires separate 24 VDC)

Supervised Relay Bases (not compatible with 2120 CDT):

  • 4098-9791, 4-Wire Sensor Base, use with remote or locally mounted 2098-9737 relay, requires separate 24 VDC
  • 4098-9780, 2-Wire Sensor Base, use with remote or locally mounted 4098-9860 relay, no separate power required
  • Supervised relay operation is programmable and can be manually operated from control panel
  • Includes wired connections for remote LED alarm indicator or 4098-9822 relay (relay is unsupervised and requires separate 24 VDC)

2098-9737, Remote or local mount supervised relay:

  • DPDT contacts for resistive/suppressed loads, power limited rating of 3 A @ 28 VDC; non-power limited rating of 3 A @ 120 VAC (requires external 24 VDC coil power)

4098-9860, Remote or local mount supervised relay:

  • SPDT dry contacts, power limited rating of 2 A @ 30 VDC, resistive; non-power limited rating of 0.5 A @ 125 VAC, resistive

4098-9822, LED Annunciation Relay:

  • Activates when base LED is on steady, indicating local alarm or trouble
  • DPDT contacts for resistive/suppressed loads, power limited rating of 2 A @ 28 VDC; non-power limited rating of 1/2 A @ 120 VAC, (requires external 24 VDC coil power)

4098-9832, Adapter plate:

  • Required for surface or semi-flush mounting to 4″ square electrical box and for surface mounting to 4″ octagonal box
  • Can be used for cosmetic retrofitting to existing 6-3/8″ diameter base product

2098-9808, Remote red led Alarm Indicator:

  • Mounts on single gang box (shown in illustration)