Instruction Manual

Page 2 of 9 — DN-6856:A • 12/01/06
• Multi-detector algorithm involves nearby detectors in alarm
decision (U.S. Patent 5,627,515).
• Automatic detector sensitivity testing.
• Maintenance alert (two levels).
• Self-optimizing pre-alarm.
VIEW® (VERY INTELLIGENT EARLY WARNING)
SMOKE DETECTION TECHNOLOGY:
• Revolutionary spot laser design.
• Advanced intelligent sensing algorithms differentiate between
smoke and non-smoke signals (U.S. Patent 5,831,524).
• Addressable operation pinpoints the fire location.
• No moving parts to fail or filters to change.
• Early warning performance comparable to the best aspiration
systems at a fraction of the lifetime cost.
ACCLIMATE PLUS™
LOW-PROFILE INTELLIGENT MULTI-SENSOR:
• Detector automatically adjusts sensitivity levels without oper-
ator intervention or programming. Sensitivity increases with
heat.
• Microprocessor-based technology; combination photo and
thermal technology.
• FlashScan® or classic mode compatible with NFS-640.
• Low-temperature warning signal at 40°F ± 5°F (4.44°C ±
2.77°C).
HARSH™ HOSTILE-AREA SMOKE HEAD:
• Provides early warning of smoke detection in environment
where traditional smoke detectors are not practical.
• The detector's filters remove particulates down to 30 microns
in size.
• Intake fan draws air into photo chamber, while airborne parti-
cles and water mist are removed.
• Requires auxiliary 24 VDC from system or remote power
supply.
RELEASING FEATURES:
• Ten independent hazards.
• Sophisticated cross-zone (three options).
• Delay timer and Discharge timers (adjustable).
• Abort (four options).
• Low-pressure CO
2
listed.
VOICE AND TELEPHONE FEATURES:
• Solid state message generation.
• Hard-wired voice control module options.
• Firefighter telephone option.
• 30- to 120-watt high-efficiency amplifiers (AA Series).
• Backup tone generator and amplifier option.
• Multichannel voice transponder (XPIQ).
HIGH-EFFICIENCY OFFLINE SWITCHING
3.0 AMP POWER SUPPLY (6.0 A IN ALARM):
• 120 or 220/240 VAC.
• Displays battery current/voltage on panel (with display).
FlashScan®
Exclusive World-Leading Detector Pro-
tocol
At the heart of the NFS-640 is a set of detection devices and
device protocol — FlashScan® (U.S. Patent 5,539,389). Flash-
Scan® is an all-digital protocol that gives superior precision and
high noise immunity.
In addition to providing quick identification of an active input
device, this protocol can also activate many output devices in a
fraction of the time required by competitive protocols. This high
Sample
System
Options
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