Notifier FSC-851 User Manual

Fsc-851(a) intelliquad, General, Features

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DN-60412:B • 08/25/2010 — Page 1 of 2

FSC-851(A) IntelliQuad™

Advanced Multi-Criteria Detector
with four unique sensing elements

Intelligent / Addressable Devices

DN-60412:B

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General

This latest addition to Notifier’s Advanced Detection line

combines four complementary technologies into one device to

convey accurate fire sensing information for locations where

absolute certainty is required.
It is designed for use with Notifier’s ONYX series fire alarm

control panels (FACPs).

Features

• Unique ability to detect all four major elements of a fire
• Highest nuisance alarm immunity
• Advanced algorithms interpret and respond to the multiple

inputs

• Six levels of sensitivity
• CO sensing for fastest response to slow developing, smol-

dering fires

• Fully integrated infrared sensing to support the fire alarm

decision

• Automatic drift compensation of smoke sensor and CO cell
• Superior EMI protection
• Twin LED indicators providing 360° visibility
• LEDs can be panel controlled to blink, latch on, latch off
• Built-in test switch
This plug-in fire detector combines four separate sensing

elements in one unit:

1. Electrochemical cell technology that monitors carbon

monoxide (CO) produced by smoldering fires
2. Infrared (IR) sensing that measures ambient light levels

and flame signatures
3. Photo-electric smoke detection
4. Thermal detection for temperature monitoring

The integration of continual monitoring for all four major

elements of a fire has enabled Notifier to create a detector that

responds more quickly to an actual fire with the highest

immunity to nuisances. This advanced multi-criteria detector

operates at a high immunity level, changing to become very

sensitive to identify those that should be ignored, reducing

false alarms.
Its on-board intelligence runs advanced algorithms that

dynamically adjust detection parameters to respond to the

inputs from the sensors, enabling instant response as ambient

conditions change.
The program changes sensor thresholds, sensor gain, time,

delays, combinations, sampling rates, and averaging rates. If

any sensor fails, the detector automatically adjusts the

sensitivity of the remaining sensors. It also recognizes a fault

condition.
The CO cell has an expected lifetime of approximately six

years. It is not a field replaceable component. An internal

timer signals the control panel to indicate the approach of the

CO cell’s end of life. Upon expiration, you should contact the

system supplier to arrange for replacement of the unit.

Detection is not compromised when the CO cell expires. The

algorithms automatically adjust to properly weight the inputs

from the photo-electric, heat, and IR sensors.

NOTE: The CO cell is specifically deployed as a component of
smoke detection in this device. This device is not listed for applica-
tions in which standalone CO detection is required for life safety.

The IR light sensor recognizes specific situations such as

welding and makes adjustments rapidly to further reduce the

potential for nuisance alarms. The thermal detection function

uses thermistor technology with a software-corrected linear

temperature response to offer exceptional nuisance alarm

immunity and excellent fire detection.

Product Line Information

FSC-851: IntelliQuad Advanced Multi-Criteria Detector
FSC-851A: ULC-listed version
Accessories
B710LP:
Flanged mounting base. 6.1” (15.5 cm) diameter.
B710LPA: Flanged mounting base, ULC Listed.
B710LPBP: Flanged mounting base. (Pack of 10)
B200S: Intelligent sounder base, capable of producing a

variety of tone patterns including ANSI Temporal 3.

Compatible with System Sensor sychronization protocol.
B200SA: Intelligent sounder base, capable of producing a

variety of tone patterns including ANSI Temporal 3.

Compatible with System Sensor sychronization protocol, ULC-

listed.
B200SR: Intelligent sounder base, Temporal 3 or Continuous

tone.
B200SRA: Intelligent sounder base, Temporal 3 or Continuous

tone, ULC-listed.
B224RB: Relay base Screw terminals: up to 14 AWG (2.0

mm²). Relay type: Form-C. Rating: 2.0 A @ 30 VDC resistive;

0.3 A @ 110 VDC inductive; 1.0 A @ 30 VDC inductive.

Dimensions: 6.2" (15.748 cm) x 1.2" (3.048 cm)..
B224RBA: Relay base, ULC Listed.

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