Siemens FDL241-9 Guide

FDL241-9
Linear smoke detector
Mounting
Commissioning
A6V10332811_e_en_-- Smart Infrastructure
2019-06-18

Imprint
Technical specifications and availability subject to change without notice.
Transmittal, reproduction, dissemination and/or editing of this document as well as
utilization of its contents and communication thereof to others without express
authorization are prohibited. Offenders will be held liable for payment of damages.
All rights created by patent grant or registration of a utility model or design patent
are reserved.
Issued by:
Siemens Switzerland Ltd.
Smart Infrastructure
Global Headquarters
Theilerstrasse 1a
CH-6300 Zug
Tel. [phone]
www.siemens.com/buildingtechnologies
Edition: 2019-06-18
Document ID: A6V10332811_e_en_--
© Siemens Switzerland Ltd, 2011
Imprint
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A6V10332811_e_en_-- 3 | 44
Table of contents
1 About this document................................................................................. 5
2 Structure and function .............................................................................. 6
2.1 Overview................................................................................................... 6
2.2 Function.................................................................................................... 6
2.2.1 Infrared ray ................................................................................. 7
2.3 Reflectors ................................................................................................. 10
3 Mounting/Installation............................................................................... 11
3.1 Switching detector over to collective operation ........................................ 11
3.2 Installing the detector base....................................................................... 12
3.3 Electrical connection................................................................................. 14
3.3.1 Connection to an addressed detector line .................................. 14
3.3.2 Connection to a collective detector line ...................................... 17
3.4 Installing the reflector for long distance (prism)........................................ 19
3.5 Installing the reflectors for middle distance and short distance (foil) ........ 20
4 Commissioning ......................................................................................... 21
4.1 Set parameter set ..................................................................................... 21
4.2 Installing the detector unit......................................................................... 23
4.3 Installing the detector heating unit (optional)............................................ 24
4.4 Inserting the filter in detector (optional) .................................................... 24
4.5 Commissioning the adjustment device ..................................................... 25
4.6 Checking the signal level and distance .................................................... 27
4.7 Preliminary setting of the detector optics (optional).................................. 29
4.8 Fine-tuning of the detector optics ............................................................. 30
4.9 Initializing the detector.............................................................................. 32
4.10 Testing detectors ...................................................................................... 34
5 Specifications ........................................................................................... 35
5.1 Technical data .......................................................................................... 35
5.2 Dimensions............................................................................................... 38
5.3 Environmental compatibility and disposal................................................. 39
6 Details for ordering ................................................................................... 40
6.1 Linear smoke detector FDL241‑9 ............................................................. 40
6.2 Base for linear smoke detector FDLB291................................................. 40
6.3 Reflector for long distance (prism) DLR1191 ........................................... 40
6.4 Reflector for middle distance (foil) DLR1192............................................ 41
6.5 Reflector for short distance (foil) DLR1193 .............................................. 41
6.6 Short distance filter DLF1191-AA ............................................................. 41
6.7 Short distance filter DLF1191-AB ............................................................. 42
6.8 Extraneous light filter DLF1191-AC .......................................................... 42
6.9 Detector heating unit DLH1191A.............................................................. 42
6.10 Adjustment kit FDLU291........................................................................... 42
6.11 Detector tester for linear smoke detector RE10 ....................................... 43

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6.12 Alarm test filter TF04 ................................................................................ 43
6.13 M20x1.5 metal cable gland..................................................................... 43

1 About this document
Goal and purpose
This document contains all the information you will need to install and commission
the linear smoke detector FDL241-9.
Prerequisites:
● The installation locations for the detector and reflector are defined according to
the planning information.
● The supply network is produced, connected and checked in line with the
country-specific installation guidelines.
● Installation should be performed by a specialist in compliance with safety
regulations.
For more information, please refer to document 007016.
In accordance with EN62471, 'Photobiological Safety of Lamps and Lamp
Systems', the linear smoke detector falls into the 'Exempt Group'.
Applicable documents
Document ID Title
007016 Technical manual Linear smoke detector FDL241-9
007017 Data sheet ASA Linear smoke detector FDL241-9
About this document 1
A6V10332811_e_en_-- 5 | 44

2 Structure and function
2.1 Overview
The linear smoke detector FDL241‑9 detects fires according to the principle of light
attenuation by smoke. The linear smoke detector works together with a reflector,
which is installed opposite the detector.
Properties
● Communication via FDnet/C-NET detector line or collective detector line
● Signal processing with ASAtechnology (ASA = Advanced Signal Analysis)
● Detection distance 5…100m1
● Three sensitivity levels
1 The detection distance of 10…100m meets the requirements of standard
EN54‑12.
In accordance with EN62471, 'Photobiological Safety of Lamps and Lamp
Systems', the linear smoke detector falls into the 'Exempt Group'.
2.2 Function
The linear smoke detector smoke detector consists of a transmitter and a receiver
and works according to the principle of light attenuation by smoke. The transmitter
transmits to the reflector a highly focused, pulse-shaped infrared ray. If no smoke
is present, a large part of the infrared ray reaches the reflector and is returned to
the receiver. The incoming light generates an electric signal on the receiver's photo
diode.
E
S
1 2
3
Figure 1: Function of the linear smoke detector without smoke
1 Detector E Receiver
2 Reflector S Transmitter
3 Measuring section 5…100m1
1 The detection distance of 10…100m meets the requirements of standard
EN54‑12.
Structure and function
Overview
2
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When smoke is present, part of the infrared ray is absorbed when it encounters the
smoke particles, while another part is scattered by smoke particles. The rest
reaches the reflector and is returned to the receiver. The infrared ray is attenuated
further. Only a small part of the infrared ray initially transmitted reaches the
receiver, and the electrical signal becomes weaker.
1
2
3
4
2
5
Figure 2: Function of the linear smoke detector with smoke
1 Absorption 4 Smoke particle
2 Scattering 5 Infrared ray
3 Attenuated infrared ray
The linear smoke detector measures the distance, which enables an exact
alignment of the smoke detector to the reflector when the detector is
commissioned.
Due to distance measuring, the smoke detector recognizes when the measuring
section is crossed by a reflecting object. In this case, the smoke detector sends a
fault signal to the control panel.
2.2.1 Infrared ray
Setup of the infrared ray
The infrared ray is scattered, giving it a conical shape. The radiation energy
decreases outwards. The infrared ray is divided into the following three ranges:
Structure and function
Overview 2
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● Effective range(1): The effective range is the connection between the
transmitter, reflector and receiver.
● Core range(2): In the core, enough radiation energy is present to operate the
system.
● Scattering range(3): The radiation energy in the scattering range is insufficient
and does not ensure the functionality of the system.
FDL DLR
1 2 3
Figure 3: Setup of the infrared ray
1 Effective range 3 Scattering range
2 Core range
1
2
3
DLR
d
0,57°
0,57°
FDL
Figure 4: Diameter of the core
1 Opening angle d Diameter of the core range
depending on the detection
distance
2 Diameter of the core l Detection distance
3 Infrared ray
Example of calculating the diameter of the core range depending on the detection
distance:
Known: Detection distance l = 100m
Wanted: Diameter d of the core
Adjustment options for the infrared ray
The infrared ray can be adjusted horizontally by a maximum of 10° in either
direction and vertically by a maximum of 5° in either direction. This adjustment
range can be used for an optimum positioning of the devices. In the case of
detection distances greater than 50m, position the detector and reflector as close
to opposite one another as possible. This makes adjustment easier.
Structure and function
Overview
2
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One turn of the knurled screw moves the infrared ray by approx.0.8 mper 100m
distance.
FDL
DLR
10°
10°
18 m18 m
100 m
DLR
1
Figure 5: Horizontal adjustment range
1 Diameter of the core
FDL
DLR
5°
5°
9 m9 m
100 m
DLR
1
Figure 6: Vertical adjustment range
1 Diameter of the core
Structure and function
Overview 2
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2.3 Reflectors
Retro-reflectors reflect rays of light that reach them in parallel. The reflector does
not necessarily have to be installed at a right angle to the ray of light. Vibrations
and distortions on the mounting surface do not interfere with this. Interfering light is
also reflected in parallel and does not therefore reach the receiver.
The reflectors must be installed at an maximum inclination angle of 20° in all
directions.
max. 20°
max. 20°
1 1 1
Figure 7: Reflectors with various inclinations
1 Reflector
Reflector for long distance (prism) DLR1191
The reflector for long distance consists of a prism and a housing. The retro-
reflecting prism has the shape of an even pyramid, the lateral surfaces of which are
made up from isosceles, right-angled triangles. Light rays coming in through the
base surface are completely reflected thrice by the lateral surfaces and are than
scattered back through the base.
The reflector for long distance is fitted with a heating unit and can therefore be
used in environments with a danger of moisture condensation. The heating unit
must be connected to a 24 V supply.
1
Figure 8: Reflector and principle of the reflector
1 Ray of light
Reflector for middle distance (foil) DLR1192 and reflector for short
distance (foil) DLR1193
The reflectors for middle distance and for short distance consist of a film with
micro-prismatic elements, which are formed in a transparent, synthetic resin.
sealed and mounted on a plastic base. The foil basically works in the same way as
the prism.
Structure and function
Reflectors
2
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3 Mounting/Installation
Prerequisites
● The installation locations for the detector and reflector are defined according to
the planning information.
● The supply network is produced, connected and checked in line with the
country-specific installation guidelines.
Sequence
1. Switch detector over to collective operation (optional)
2. Installing the detector base
3. Electrical connection
4. Installing the reflector for long distance (prism)
5. Installing the reflectors for middle distance and short distance (foil)
Information on the individual steps can be found in the following chapters.
The detector is only installed on the detector base during commissioning.
3.1 Switching detector over to collective operation
When supplied, the detector is set for operation on an FDnet/C-NET detector line.
When operating a collective detector line, the control panel normally switches the
detector to collective operation automatically.
Some collective control panels do not however automatically switch from FDnet/C-
NET operation to collective operation. In these cases, you must switch the detector
over manually. If you are not certain whether the detector is switched over
automatically, switch it manually to collective operation before installing.
The detector always switches automatically from collective operation to FDnet/C-
NET operation.
Procedure
Note the positive and negative poles.
wThe detector base must not be connected to the detector line.
1. Connect the detector base to a DC 12V to 28V source of DC voltage, e.g. a
battery, according to the connection diagram shown below. Use a screwdriver
to remove the load from the springs in the socket strip so you can slide in the
wire.
2. Insert the detector unit into the detector base.
3. Wait around 15 seconds and then remove the detector unit and source of DC
voltage.
aThe detector is switched over to collective operation and can be connected to a
collective detector line.
Mounting/Installation
Switching detector over to collective operation 3
A6V10332811_e_en_-- 11 | 44

-
+
Figure 9: Connection diagram for the source of DC voltage
3.2 Installing the detector base
WARNING
Danger of falling
Bodily injury
● When installing, use a secured ladder or work platform.
CAUTION
Using the device in a damp and/or corrosive environment
Device function is impaired.
● Use the M20x1.5 metal cable gland in damp and/or corrosive environments.
12
Figure 10: Mounting and electrical connection
1 Detector base 2 Carrier for connection terminals
1. Break open the plastic parts in the detector base(1) at the openings you
require for cable entry. Note the arrows in the detector base indicating which
side should be at the top.
2. If necessary screw the M20x1.5 metal cable gland into the openings.
3. Install the detector base on a stable, vibration-free surface with two screws.
Mounting/Installation
Installing the detector base
3
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4. Guide the cables from the detector line and external alarm indicator into the
detector base. You will also need a 24 V supply if you are using the detector
heating unit DLH1191A.
5. Mount the carrier (2) for the connection terminals by inserting two screws into
the detector base. The arrows in the carrier indicate which side should be at
the top.
6. If you are using the detector heating unit DLH1191A, insert the terminal block
supplied with the detector heating unit into the carrier (2).
aThe detector base is installed.
Mounting/Installation
Installing the detector base 3
A6V10332811_e_en_-- 13 | 44

3.3 Electrical connection
● Specialist electrical engineering knowledge is required for installation.
● Only an expert is permitted to carry out installation work.
Incorrect installation can take safety devices out of operation unbeknown to a
layperson.
The electrical connection depends on the following factors:
● Connection to an FDnet/C-NET detector line or collective detector line
● Use of unshielded cables or shielded cables
The general process is described below. The connection diagrams and more
information on the various connection variants can be found in the following
chapters.
Note the following with regard to the electrical connection:
CAUTION
Using the device in a damp and/or corrosive environment
Device function is impaired.
● Use the M20x1.5 metal cable gland in damp and/or corrosive environments.
Note the positive and negative poles.
Only connect one wire per terminal. This is the only way to ensure the connection
is failure-free for the entire service life of the device.
● Wherever possible use twisted, unshielded cables. Shielded cables are only
required in special cases, such as strong high-frequency fields. This also
applies to connecting the external alarm indicators.
● Only use cables with a conductor cross-section of 0.2…1.5mm2.
General procedure
wThe detector base and the carrier for connection terminals are mounted.
1. Connect the wires as shown in the corresponding connection diagram. Use a
screwdriver to remove the load from the springs in the socket strip so you can
slide in the wire.
2. If you are using the detector heating unit, connect the wires of the 24 V supply
according to the connection diagram shown below.
-
+ -
+
Figure 11: Connection diagram for the detector heating unit
3.3.1 Connection to an addressed detector line
The following applies to FDnet/C-NET detector lines:
Mounting/Installation
Electrical connection
3
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● Loops, stubs and T-branches are possible.
● You may only connect external alarm indicators to one detector.
● Permissible cables for detectors with more than one external alarm indicator
according to the collective connection diagram may be migrated to the FDnet/
C-NET without any changes.
● Note document 001508 for installation (calculation of the capacity layer).
3.3.1.1 Use of unshielded cables
The connection is established from base to base using twisted or non-twisted wire
pairs.
LINE
+
-
-
+
12
3
4
2
+
4
+
LINE
++ __ +_
LINE
++ __ +_
LINE
++ __ +_
LINE
++ __ +_
LINE
++ __ +_
Figure 12: Connection diagram for addressed detector line with and without external alarm indicators
(without shielded cables)
1 Control panel 3 Auxiliary terminals DBZ1190‑xx
2 Detector 4 External alarm indicator
3.3.1.2 Use of shielded cables
The detector line shielding must be connected through in the detector base with
auxiliary terminals DBZ1190-xx.
Mounting/Installation
Electrical connection 3
A6V10332811_e_en_-- 15 | 44

There are two ways of connecting external alarm indicators:
LINE
1
2
3
2
4
A
B
4
+
+
3
3
LINE
++ __ +_
LINE
++ __ +_
LINE
++ __ +_
LINE
++ __ +_
LINE
++ __ +_
Figure 13: Connection diagram for addressed detector line with and without external alarm indicators
(with shielded cables)
1 Control panel 3 Auxiliary terminals DBZ1190‑xx
2 Detector 4 External alarm indicator
Variant A
1. Connect the positive pole of the external alarm indicator to the positive pole for
the external alarm indicator on the detector.
2. Connect the negative pole of the external alarm indicator to the negative pole
for the external alarm indicator on the detector.
3. Connect the shielding of the connection cable between the external alarm
indicator and detector on the detector side to the positive pole for the external
alarm indicator via an auxiliary terminal DBZ1190-xx.
Variant B
1. Connect the positive pole of the external alarm indicator to the positive pole for
the external alarm indicator on the detector.
2. Leave the negative pole for the external alarm indicator on the detector
unoccupied.
Mounting/Installation
Electrical connection
3
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3. Connect each of the two negative poles of the external alarm indicator
separately to both negative poles of the detector line.
The two negative connections of the external alarm indicator are decoupled
externally in the alarm indicator by diodes.
4. Connect the shielding of the detector line with the shielding of the connection
cable to the external alarm indicator with an auxiliary terminal DBZ1190-xx.
3.3.2 Connection to a collective detector line
Connect a control panel-specific end-of-line to the end of the collective detector
line.
3.3.2.1 Use of unshielded cables
The connection is established from base to base using twisted or non-twisted wire
pairs.
LINE
+
-
1
2
C
4
B
3
A
+
LINE
++ __ +_
LINE
++ __ +_
LINE
++ __ +_
Figure 14: Connection diagram for collective detector line with and without external alarm indicators
(without shielded cables)
1 Control panel 3 External alarm indicator
2 Detector 4 End-of-line depending on control
panel
Standard circuitry
With standard circuitry, the external alarm indicator is connected to the positive and
negative poles of each detector.
Wire-saving cabling
NOTICE
Cabling for new sites
Wire-saving cabling in external alarm indicators is prohibited for new sites.
With wire-saving cabling, the external alarm indicator is connected as follows:
● The external alarm indicator must be connected to the positive and negative
poles of at least one detector (A).
● The external alarm indicator must be connected to the positive pole of every
other detector (B).
● The external alarm indicator need not be connected to the negative pole of
every other detector (C).
Mounting/Installation
Electrical connection 3
A6V10332811_e_en_-- 17 | 44

3.3.2.2 Use of shielded cables
The detector line shielding must be connected through in the detector base with
auxiliary terminals DBZ1190-xx.
There are two ways of connecting external alarm indicators:
LINE
1
2
3
B
4
++
A
5
4
LINE
++ __ +_
LINE
++ __ +_
LINE
++ __ +_
LINE
++ __ +_
Figure 15: Connection diagram for collective detector line with and without external alarm indicators
(with shielded cables)
1 Control panel 4 External alarm indicator
2 Detector 5 End-of-line depending on control
panel
3 Auxiliary terminals DBZ1190‑xx
Variant A
1. Connect the positive pole of the external alarm indicator to the positive pole for
the external alarm indicator on the detector.
2. Connect the negative pole of the external alarm indicator to the negative pole
for the external alarm indicator on the detector.
3. Connect the shielding of the connection cable between the external alarm
indicator and detector on the detector side to the positive pole for the external
alarm indicator via an auxiliary terminal DBZ1190-xx.
Variant B
1. Connect the positive pole of the external alarm indicator to the positive pole for
the external alarm indicator on the detector.
2. Leave the negative pole for the external alarm indicator on the detector
unoccupied.
3. Connect the negative pole of the external alarm indicator with the negative pole
on the input side of the detector line on the detector via an auxiliary terminal
DBZ1190‑xx.
4. Connect the shielding of the detector line with the shielding of the connection
cable to the external alarm indicator via an auxiliary terminal DBZ1190-xx.
Mounting/Installation
Electrical connection
3
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3.4 Installing the reflector for long distance (prism)
WARNING
Danger of falling
Bodily injury
● When installing, use a secured ladder or work platform.
-
+ -
+
1
2
3
Figure 16: Installing the reflector
1 Base 3 Terminals for heating
2 Prism unit
Mounting without heating unit
wThe mounting location of the reflector is defined according to the planning
information.
1. Install the base(1) with two screws on a level surface.
2. Install the prism unit(2) on the base with four screws.
aThe reflector is installed.
Mounting with heating unit
Note the positive and negative poles.
Only connect one wire per terminal. This is the only way to ensure the connection
is failure-free for the entire service life of the device.
wThe mounting location of the reflector is defined according to the planning
information.
wYou need a 24 V supply for the heating. Only use cables with a conductor
cross-section of 0.2…1.5mm2.
1. Break open the plastic parts in the base(1) at the openings you require for
cable entry.
2. If necessary screw the M20x1.5 metal cable gland into the openings.
3. Install the base with two screws on a level surface.
4. Insert the cable for the 24 V supply into the base.
Mounting/Installation
Installing the reflector for long distance (prism) 3
A6V10332811_e_en_-- 19 | 44

5. Connect the wires to the terminals for the heating unit(3) according to the
connection diagram.
6. Install the prism unit(2) on the base with four screws.
3.5 Installing the reflectors for middle distance and
short distance (foil)
WARNING
Danger of falling
Bodily injury
● When installing, use a secured ladder or work platform.
wThe installation location of the reflector is defined according to the planning
information.
lInstall the reflector with one screw on a level surface. The diameter of the hole
is 4mm.
Mounting/Installation
Installing the reflectors for middle distance and short distance (foil)
3
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