Notifier SD-851E User manual

Page 1 of 2 — 990-077
990-077, Issue 1 June 2002
This document is not intended to be used for installation purposes. Every care has been taken in the
preparation of this document but no liability can be accepted for the use of the information therein.
Design features may be changed or amended without prior notice. For more information, contactNOTIFIER.
Charles Avenue, Burgess Hill, West Sussex, RH15 9UF. United Kingdom
Phone: [phone] Fax: [phone]
ISO9001
Design, Manufacture and Supply
to Quality Management Systems
Certified to ISO9001:1994
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007
SD-851E
ConventionalPhotoelectric
Smoke Detector
Section: Conventional Devices
FEATURES
•Low profile design
•Low current draw
•Wide operating voltage 8
to 30VDC
•Bi-colour LED detector
status indicator
•Automatic drift
compenstation
•Programmable Sensitivity
•Addressable Feature
•Advanced maintenance
features via remote hand-
held test unit
•Range of detector bases
available
•Approved to EN54 part 7
(2000)
•3 Year warranty
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Ref No. 199m/03
VdS
G202013
BOSEC
TCC2
9057
GENERAL
The SD-851E forms part of the
ProcessorenhancedDetectionseriesof
conventional detectors. These
detectors have been produced using
the latest in manufacturing and design
techniques,pushingouttheboundaries
of existing conventional detector
technology. With an on board
microprocessor, it’s multitude of
enhanced features including drift
compensation, provides the best in
conventional detection.
The SD-851E photoelectric smoke
detector incorporates an optical
chamber which is continually
monitored by an on board processor
which uses algorithms developed
specifically for the unit. An alarm
signal is only enabled in the detector
once the processor is satisfied that an
incipientfirehasbeendetectedtherby
reducing the incidence of nuisance
alarms.
‘Drift compensation’ algorithms are
one of the key features of the SD-851E
detector. These internal algorithms
ensure a consistent alarm sensitivity
threshold for periods between service
intervals. This provides the user with
maintenance savings by extending the
period before cleaning of the detector
chamber is required whilst minimising
the risk of nuisance alarms.
The sensitivity of a smoke detector is
critical to its overall performance, this
is reflected in both its ability to detect
real fire conditions and its resilience to
non-fire stimuli. The SD-851E’s
performance can be optimised for it’s
application by selecting from one of
three preset alarm thresholds - Low,
Medium and High, offering greater
stability and optimum performance
within the environment in which it has
been installed. The selection is easily
achieved through the use of a remote
hand-held tool.
The remote hand-held programming
tool can also be used in conjunction
with thePhDseriesofdetectors togain
access to other enhanced features. The
features available include: read/write
last maintenance date, read chamber
contamination level, read value of
thermal element and perform an alarm
test.

Page 2 of 2 — 990-077
ORDERING
INFORMATION
Part No. Description
SD-851E Conventional
Photoelectric Smoke
Detector
Base:
B401 Standard Base
B401D Standard Base with
schotty diode
B401R Resistor base with 470
ohm resistor
B312NL 12V non-latching relay
base
B312RL 12V latching relay base
B324RL 24V latching relay base
Accessories:
S300RPTU Remote Programming
andTestUnitAccessories
S300RTU Remote Test Unit
S300SAT Remote Programming
Interface Unit
S300ZDU Zonal Display Unit
SPECIFICATIONS
·Dimensions
üHeight: 43 mm
üDiameter: 102 mm
üWeight: 75g
·Current Consumption
üAlarm:50 mA at24 VDC (limited
by panel)
üStandby:120µA at 24 VDC
·Operating Voltage
ü8to30VDC(Nominal12/24VDC)
·Environmental Limits
ü-30°C to +70°C
üHumidity 5 to 95% (non-
condensing)
Wiring Diagram (Diode Base)
INSTALLATION
Each detector can be given a unique
address. When used in conjunction
withtheS300ZDUZoneDisplayUnitthe
addresswillbedisplayedwheneverthe
detector is in alarm.
All the features via the hand-held
programming unit are achieved
effectivelyandeffortlesslywithoutthe
need to remove the detector or having
to gain direct physical access (other
than by the use of servicing poles in
conjunction with the S300SAT), saving
valuable commissioning/maintenance
time.
They provide the end user with the
confidence to know that the system is
being regularly serviced and that it is
operating at it’s optimum level, with
minimum disruption to business
activities.
In addition to the comprehensive
programmingtool,asimplelaserbased
alarm test unit is also available. The
codedsignaltransmittedbythisdevice
can instruct the detector to generate a
fullalarm condition at arange of up to
5 metres from the detector, and is an
ideal tool for initial commissioning and
routine system testing.
The PhD seriesdetectorsincorporatea
bi-colour LED indicator. The integral
LED changes colour according to the
detector’s status: Green = Normal, Red
= Alarm. This benefits the user by
providing clear, instant visual
indication of the detector’s condition.
TheGreenLEDcanbeprogrammedfor
blink/no blink operation.
A variety of detector bases are
available providing compatibility with
a wide range of Fire Alarm Control
Panels making it ideal for expansions
and retrofit applications. All bases are
fitted with a shorting spring to permit
circuit testing prior to fitting the
detector and have a tamper resistant
feature,whichwhenactivatedprevents
removal of the detector without the
use of a tool.
+
-
CONTROL
PANEL
End Of
Line Device
Optional
Zonal
Display
Unit 4
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