Siemens FDOOT241-9, FDOOT221, FDOOT241-8, FDO241, FDO221 Technical Manual

...

Building Technologies

Fire Safety & Security Products

FDOOT241-9, FDOOT241-8,

FDOOT221, FDO241, FDO221,

FDT241, FDT221

Automatic fire detectors

Technical manual

Technical specifications and availability subject to change without notice.

We reserve all rights in this document and in the subject thereof. By acceptance of the document the recipient acknowledges these rights and undertakes not to publish the document nor the subject thereof in full or in part, nor to make them available to any third party without our prior express written authorization, nor to use it for any purpose other than for which it was delivered to him.

Building Technologies 007004_k_en_--

Fire Safety & Security Products 16.04.2009

About this document ....................................................................................7

2 Safety............................................................................................................11

2.1 Safety notices................................................................................................11

2.2 Safety regulations for the method of operation .............................................13

2.3 Standards and directives complied with........................................................15

3 Structure and function................................................................................16

3.1 Overview .......................................................................................................16

3.1.1 Detectors with ASAtechnology (S-LINE) ....................................... 16

3.1.2 Detector with detection algorithms (C-LINE) .................................17

3.1.3 Details for ordering ........................................................................17

3.2 S-LINE and C-LINE.......................................................................................18

3.2.1 C-LINE ........................................................................................... 19

3.2.2 S-LINE ...........................................................................................20

3.3 Detectors .......................................................................................................22

3.3.1 Neural fire detector ........................................................................22

3.3.1.1 Variants of the FDOOT241-9 ....................................23

3.3.2 Wide-spectrum smoke detector .....................................................24

3.3.3 Heat detector .................................................................................25

3.4 Function.........................................................................................................26

3.4.1 Parameter sets...............................................................................26

3.4.2 Danger levels.................................................................................26

3.4.3 Diagnosis levels .............................................................................27

3.4.4 Line separator................................................................................29

3.4.5 Automatic recognition of the detector line protocol........................29

3.4.6 Internal alarm indicator ..................................................................29

3.4.7 Connection of external alarm indicators ........................................29

3.4.8 Renovation mode...........................................................................30

3.4.9 Test mode ......................................................................................30

3.4.10 Behavior in degraded mode...........................................................30

3.4.11 Interface to service devices ...........................................................31

3.4.12 Line tester ......................................................................................31

3.5 Mechanical setup ..........................................................................................32

3.6 Options ..........................................................................................................33

3.6.1 Detector base FDB221/FDB221-AA..............................................33

3.6.2 Detector base FDB201/FDB201-AA..............................................33

3.6.3 Detector base FDB222 ..................................................................34

3.6.4 Detector base FDB202 ..................................................................34

3.6.5 Sounder base FDSB291................................................................34

3.6.6 Sounder base FDSB292................................................................35

3.6.7 Base attachment FDB291..............................................................35

3.6.8 Base attachment humid FDB293...................................................35

3.6.9 Base adapter FDB281 ...................................................................36

3.6.10 Detector heating unit FDBH291.....................................................36

3.6.11 Designation plate FDBZ291...........................................................36

3.6.12 Designation plate DBZ1193A ........................................................37

3.6.13 Detector locking device FDBZ293 .................................................37

3.6.14 Dummy detector FDX291 ..............................................................37

3.6.15 Detector dust cap FDZ291............................................................. 37

3.6.16 Protective cage DBZ1194..............................................................38

Table of contents

Building Technologies 007004_k_en_--

Fire Safety & Security Products 16.04.2009

3.6.17 EMC-protective cage FDBZ294 .....................................................38

3.6.18 Micro terminal DBZ1190-AA ..........................................................38

3.6.19 Connection terminal DBZ1190-AB.................................................39

3.6.20 M20 x 1.5 metal cable gland ..........................................................39

4 Project engineering.....................................................................................40

4.1 Compatibility..................................................................................................40

4.2 Ambient features ...........................................................................................40

4.3 Parameter sets: Neural fire detector .............................................................42

4.3.1 Neural fire detector FDOOT241-x (sensor mode 0) ......................42

4.3.1.1 Description.................................................................42

4.3.1.2 Application .................................................................44

4.3.1.3 Specification ..............................................................45

4.3.2 Neural fire detector FDOOT241-x (sensor mode 1, 'Heat detector')46

4.3.3 Neural fire detector FDOOT241-x (sensor mode 2, 'Smoke

detector') ........................................................................................47

4.3.4 Neural fire detector FDOOT221.....................................................48

4.3.4.1 Description.................................................................48

4.3.4.2 Application .................................................................48

4.3.4.3 Specification ..............................................................48

4.4 Parameter sets: Wide-spectrum smoke detector..........................................49

4.4.1 Wide-spectrum smoke detector FDO241 ......................................49

4.4.1.1 Description.................................................................49

4.4.1.2 Application .................................................................49

4.4.1.3 Specifications ............................................................50

4.4.2 Wide-spectrum smoke detector FDO221 ......................................51

4.4.2.1 Description.................................................................51

4.4.2.2 Application .................................................................51

4.4.2.3 Specification ..............................................................51

4.5 Parameter sets: Heat detector ......................................................................52

4.5.1 Heat detector FDT241 ...................................................................52

4.5.1.1 Description.................................................................52

4.5.1.2 Specifications ............................................................53

4.5.2 Heat detector FDT221 ...................................................................54

4.5.2.1 Description.................................................................54

4.5.2.2 Specifications ............................................................54

4.6 Default settings..............................................................................................55

4.7 Application examples ....................................................................................56

5 Mounting / Installation ................................................................................57

5.1 Required space .............................................................................................57

5.2 Detector base FDB201/221...........................................................................58

5.3 Detector base FDB202/222...........................................................................59

5.4 Base attachment FDB291 .............................................................................60

5.5 Base attachment humid FDB293 ..................................................................61

5.6 Base adapter FDB281...................................................................................62

5.7 Detector locking device FDBZ293.................................................................63

5.8 Designation plate FDBZ291 ..........................................................................64

5.9 Designation plate DBZ1193A ........................................................................64

Building Technologies 007004_k_en_--

Fire Safety & Security Products 16.04.2009

5.10 Detector heating FDBH291 ...........................................................................65

5.10.1 Installation of the detector heating unit..........................................65

5.10.2 Connection of the detector heating unit.........................................66

5.11 Protective cages............................................................................................67

5.11.1 Installation of the protective cages ................................................67

5.11.2 Grounding of the EMC-protective cage FDBZ294.........................67

5.12 Cable entry....................................................................................................68

5.12.1 Auxiliary terminals DBZ1190-AA/-AB ............................................69

5.13 Detector lines ................................................................................................69

5.13.1 Connection diagram (addressed) ..................................................70

5.13.1.1 Use of unshielded cables .......................................... 70

5.13.1.2 Use of shielded cables ..............................................71

5.13.2 Connection diagram (collective) ....................................................73

5.13.2.1 Use of unshielded cables .......................................... 74

5.13.2.2 Use of shielded cables ..............................................75

5.13.3 Connection diagram (MS8)............................................................76

5.13.3.1 Use of unshielded cables .......................................... 76

5.13.3.2 Use of shielded cables ..............................................77

5.14 Detector dust cap FDZ291 ............................................................................78

6 Commissioning ...........................................................................................79

7 Maintenance / repair ...................................................................................80

7.1 Status polling with the detector exchanger and tester ..................................80

7.2 Performance check .......................................................................................80

7.3 Testing detectors...........................................................................................81

7.3.1 Testing detectors with detector exchanger and tester...................82

7.3.2 Testing detectors without detector exchanger and tester..............82

8 Specifications ..............................................................................................83

8.1 Technical data FDOOT241-x, FDOOT221 ...................................................83

8.1.1 General (irrespective of the detector line) .....................................83

8.1.2 Detector lines .................................................................................85

8.2 Technical data FDO221, FDO241.................................................................89

8.3 Technical data FDT221, FDT241.................................................................. 91

8.4 Dimensions....................................................................................................93

8.5 Environmental compatibility ..........................................................................93

9 Index .............................................................................................................94

Building Technologies 007004_k_en_--

Fire Safety & Security Products 16.04.2009

About this document

Building Technologies 007004_k_en_--

Fire Safety & Security Products 16.04.2009

1 About this document

Goal and purpose

This document contains information on automatic fire detectors. Consistent compliance with the instructions guarantees correct and safe use.

Target groups

The information in this document is intended for the following target groups:

Target group Activity Qualification

Product Manager z Is responsible for information

passing between the manufacturer and regional company.

z Coordinates the flow of information

between the individual groups of people involved in a project.

z Has obtained suitable specialist training for

the function and for the products.

z Has attended the training courses for

Product Managers.

Project Manager z Coordinates the deployment of all

persons and resources involved in the project according to the schedule.

z Provides the information required to

run the project.

z Has obtained suitable specialist training for

the function and for the products.

z Has attended the training courses for Project

Managers.

Project Engineer z Parameterizes the product

according to country-specific and customer-specific requirements.

z Checks operability and releases the

product for commissioning at the place of installation.

z Searches for and corrects

malfunctions.

z Has obtained suitable specialist training for

the function and for the products.

z Has attended the training courses for Project

Engineers.

Installation personnel z Assembles and installs the product

components at the place of installation.

z Carries out a performance check

following installation.

z Has received specialist training in the area of

building installation technology or electrical installations.

Maintenance personnel z Carries out all maintenance work.

z Checks that the products are in

perfect working order.

z Searches for and corrects

malfunctions.

z Has obtained suitable specialist training for

the function and for the products.

About this document

Building Technologies 007004_k_en_--

Fire Safety & Security Products 16.04.2009

Document identification

Position Information

Title page z Product type

z Product designation z Document type

Last page, bottom left z Document ID

ID_ModificationIndex_Language_COUNTRY

z Edition date

Last page, bottom right z Manual

z Register

Conventions for text marking

Markups

Special markups are shown in this document as follows:

⊳ Requirement for a behavior instruction

⇨ Intermediate result of a behavior instruction

⇨ End result of a behavior instruction

'Text' Quotation, reproduced identically

<Key> Identification of keys

Supplementary information

The

symbol identifies supplementary information such as a tip for an easier

way of working.

Supplementary information is labeled using the 'i' symbol.

About this document

Building Technologies 007004_k_en_--

Fire Safety & Security Products 16.04.2009

Technical terms

Term Explanation

AI Alarm indicator

ASA Advanced Signal Analysis

DA Detection algorithms

C-LINE Fire detector for standard applications

S-LINE Fire detector for sophisticated applications

ES Product version

FDnet Addressed detector line (field device net)

FET Field Effect Transistor

GMT Limit value detection technology (collective)

LED Light-emitting diode

MC link Maintenance and Commissioning Link; interface to the detector

exchanger and tester

MS8 Pulse detection technology (addressed); also known as PMT

PMT Pulse detection technology (addressed); also known as MS8

SIGMASYS Fire detection system

Reference documents

Document ID Title

008331 List of compatibility

007227 FDUD292 detector exchanger and tester

009718 FDUD293 intelligent detector tester

008250 FDUL221 line tester

010030 Fire detector application guideline

About this document

Building Technologies 007004_k_en_--

Fire Safety & Security Products 16.04.2009

History of changes

Document ID Edition date Brief description

007004_k_en_-- 04.2009 Sensitivities for FDOOT241-x with High

Suppression now 2.3 and 8 %/m. Accessories with order no. Detector base FDB2x1-AA with 1 micro terminal. FDSB291 compatible with heat detector FDT2xx

(as of ES ≥43). Connection diagram for shielded cables.

007004_j_de_-- 07.2008 Safety instructions revised

Technical data restructured

007004_i_de_-- 02.2008 Chap. 4.3.1.3: Only parameter set 8 doesn't satisfy

the EN 54-7 and CEA 4021 standards. Parameters set 0 added to chaps. 4.3.2 and 4.3.3. Index added.

007004_h_de_-- 02.2008 FM approvals supplemented.

IP protection category for FDB291/FDB293 corrected.

Structure in chap. 'Detector lines' uniform. Various corrections to parameter sets of

FDOOT241-x, FDO241 and FDT241. KMK in chap. 8.1.4: Par. sets specified more

precisely. New chapters 'Default settings' and 'Protective

cages'. New options:

- Detector base FDB202/FDB222

- Dummy detector FDX291

007004_g_de_-- 10.2007 Cross-reference list of detector names added in

chap. 'Overview'. Display texts for detector exchanger and tester

added in 'Diagnosis levels' chapter. Various corrections to FDOOT241-x parameter sets.

EMC-protective cage FDBZ294 included in options. 'Mode' replaced by 'sensor mode'. Supplements in the 'Technical data':

- Line separator

- IP protection categories

- LPCB approvals

- Standard EN 54-17 Images with language texts replaced by language-

neutral images

007004_f_de_-- 09.2006 Complete revision (devices with ES ≥ 30 included)

007004_e_de_-- 04.2005 Chapters 5.1, 5.3, 5.5.3, 5.7.2, 5.8.1, 5.8.2, 6.11.1,

6.11.2, 9.3.2, 9.3.3, 9.4, 9.5

007004_d_de_-- 01.2005 Chapters 4.4.1, 5, 9.3.1, 9.3.4, 9.3.6 and 9.4

adapted

007004_c_de_-- 12.2004 Text in chapter 0, titles 5.5.1, 5.5.2, 5.5.3 adapted

007004_b_de_-- 11.2004 Document layout adapted, parameter sets adapted,

various minor changes

007004_a_de_-- 06.2004 First edition

Safety

Building Technologies 007004_k_en_--

Fire Safety & Security Products 16.04.2009

2 Safety

2.1 Safety notices

The safety notices must be observed in order to protect people and property.

The safety notices in this document contain the following elements:

z Symbol for danger

z Signal word

z Nature and origin of the danger

z Consequences if the danger occurs

z Measures or prohibitions for danger avoidance

Symbol for danger

This is the symbol for danger. It warns of risks of injury.

Follow all measures identified by this symbol to avoid injury or death.

Additional danger symbols

These symbols indicate general dangers, the type of danger or possible consequences, measures and prohibitions, examples of which are shown in the following table:

General danger

Explosive atmosphere

Voltage/electric shock

Laser light

Battery

Heat

Safety

Building Technologies 007004_k_en_--

Fire Safety & Security Products 16.04.2009

Signal word

The signal word classifies the danger as defined in the following table:

Signal word Danger level

DANGER DANGER identifies a dangerous situation, which will result

directly in death or serious injury if you do not avoid this situation.

WARNING WARNING identifies a dangerous situation, which may result

in death or serious injury if you do not avoid this situation.

CAUTION CAUTION identifies a dangerous situation, which could result

in slight to moderately serious injury if you do not avoid this situation.

NOTICE

identifies possible damage to property that may

result from non-observance.

How risk of injury of presented

Information about the risk of injury is shown as follows:

WARNING

Nature and origin of the danger

Consequences if the danger occurs

z Measures / prohibitions for danger avoidance

How possible damage to property is presented

Information about possible damage to property is shown as follows:

NOTICE

Nature and origin of the danger

Consequences if the danger occurs

z Measures / prohibitions for danger avoidance

Safety

Building Technologies 007004_k_en_--

Fire Safety & Security Products 16.04.2009

2.2 Safety regulations for the method of operation

National standards, regulations and legislation

Siemens products are developed and produced in compliance with the relevant European and international safety standards. Should additional national or local safety standards or legislation concerning the planning, assembly, installation, operation or disposal of the product apply at the place of operation, then these must also be taken into account together with the safety regulations in the product documentation.

Electrical installations

WARNING

Electrical voltage

Electric shock

z Work on electrical installations may only be carried out by qualified

electricians or by instructed persons working under the guidance and

supervision of a qualified electrician, in accordance with the electrotechnical

regulations.

z Wherever possible disconnect products from the power supply when carrying

out commissioning, maintenance or repair work on them.

z Lock volt-free areas to prevent them being switched back on again by mistake.

z Label the connection terminals with external external voltage using a

'DANGER External voltage' sign.

z Route mains connections to products separately and fuse them with their own,

clearly marked fuse.

z Fit an easily accessible disconnecting device in accordance with IEC 60950-1

outside of installation.

z Produce earthing as stated in local safety regulations.

Assembly, installation, commissioning and maintenance

z If you require tools such as a ladder, these must be safe and must be intended

for the work in hand.

z When starting the fire control panel ensure that unstable conditions cannot

arise.

z Ensure that all points listed in the 'Testing the product operability' section below

are observed.

z You may only set controls to normal function when the product operability has

been completely tested and the system has been handed over to the customer.

Safety

Building Technologies 007004_k_en_--

Fire Safety & Security Products 16.04.2009

Testing the product operability

z Prevent the remote transmission from triggering erroneously.

z If testing building installations or activating devices from third-party companies,

you must collaborate with the people appointed.

z The activation of fire control installations for test purposes must not cause

injury to anyone or damage to the building installations. The following instructions must be observed:

‒ Use the correct potential for activation; this is generally the potential of the

building installation. ‒ Only check controls up to the interface (relay with blocking option). ‒ Make sure that only the controls to be tested are activated.

z Inform people before testing the alarming control devices and allow for possible

panic responses.

z Inform people about any noise or mist which may be produced.

z Before testing the remote transmission, inform the corresponding alarm and

fault signal receiving stations.

Modifications to the system layout and products

Modifications to the system and to individual products may lead to faults, malfunctioning and safety risks. Written confirmation must be obtained from Siemens and the corresponding safety bodies for modifications or additions.

Modules and spare parts

z Components and spare parts must comply with the technical specifications

defined by Siemens. Only use products specified or recommended by Siemens.

z Only use fuses with the specified fuse characteristics.

z Wrong battery types and improper battery changing lead to a risk of explosion.

Only use the same battery type or an equivalent battery type recommended by Siemens.

z Batteries must be disposed of in an environmentally friendly manner. Observe

national guidelines and regulations.

Disregard of the safety regulations

Before they are delivered, Siemens products are tested to ensure they function correctly when used properly. Siemens disclaims all liability for damage or injuries caused by the incorrect application of the instructions or the disregard of danger warnings contained in the documentation. This applies in particular to the following damage:

z Personal injuries or damage to property caused by improper use and incorrect

application

z Personal injuries or damage to property caused by disregarding safety

instructions in the documentation or on the product

z Personal injury or damage to property caused by poor maintenance or lack of

maintenance

Safety

Building Technologies 007004_k_en_--

Fire Safety & Security Products 16.04.2009

Disclaimer

We have checked that the content of this document matches the hardware and software described. Despite this, we cannot rule out deviations and cannot therefore assume liability for them matching completely. The details in this document are checked regularly and any corrections needed included in subsequent editions.

We are grateful for any suggestions for improvement.

2.3 Standards and directives complied with

A list of the standards and directives complied with is available from your Siemens contact.

Structure and function

Building Technologies 007004_k_en_--

Fire Safety & Security Products 16.04.2009

3 Structure and function

3.1 Overview

In this document the following detectors are summarized under the term "Automatic fire detectors":

z Neural fire detector FDOOT2x1-x

z Wide-spectrum smoke detector FDO2x1

z Heat detector FDT2x1

The same detectors may have different names, depending on the document type.

Detector type Designation 1 (e.g. in technical documentation

etc.)

Designation 2 (e.g. in catalog sheets etc.)

FDOOT221 Neural fire detector Multi-sensor smoke detector, neural DA

FDOOT241-x Neural fire detector Multi-sensor smoke detector, neural ASA

FDO221 Wide-spectrum smoke detector Smoke detector, FDnet wide spectrum DA

FDO241 Wide-spectrum smoke detector Smoke detector, FDnet wide spectrum ASA

3.1.1 Detectors with ASAtechnology (S-LINE)

Neural fire detector FDOOT241-9

Neural fire detector FDOOT241-8

Wide-spectrum smoke detector

FDO241

Heat detector FDT241

Can be used either addressed in FDnetor collectively

Can be used either addressed in MS8/PMT or in FDnet

Can be used addressed on the FDnet

Can be set as neural fire detector, wide-spectrum smoke detector or heat detector on the part of the software

Selectable detection behavior thanks to application-specific ASA parameter sets

Structure and function

Building Technologies 007004_k_en_--

Fire Safety & Security Products 16.04.2009

3.1.2 Detector with detection algorithms (C-LINE)

Neural fire detector FDOOT221

Wide-spectrum smoke detector FDO221

Heat detector FDT221

Can be used addressed on the FDnet

Selectable detection behavior thanks to different DA parameter sets

3.1.3 Details for ordering

Type Order no. Designation

FDOOT241-9 A5Q00004813 Neural fire detector

FDOOT241-8 A5Q00004663 Neural fire detector

FDO241 A5Q00004811 Wide-spectrum smoke detector

FDT241 A5Q00004812 Heat detector

FDOOT221 A5Q00001566 Neural fire detector

FDO221 A5Q00001565 Wide-spectrum smoke detector

FDT221 A5Q00001567 Heat detector

Structure and function

Building Technologies 007004_k_en_--

Fire Safety & Security Products 16.04.2009

3.2 S-LINE and C-LINE

Regarding the detectors, there are two product lines: S-LINE and C-LINE. They differ regarding the different detector variants and functionalities in both the detectors and control panels. The application range of the S-LINE detectors is wider than that of the C-LINE detectors.

Application range

fast / sensitive

Response behavior slow / insensitive

S-LINE

C-LINE

Few Deceptive phenomena Many

S-LINE detectors are suited to applications where many deceptive phenomena have to be expected, or fast fire detection is required.

z C-LINE detectors are suited to applications where few deceptive phenomena

have to be expected.

FDnet devices of the S-LINE and C-LINE can be combined on the same detector

line.

Structure and function

Building Technologies 007004_k_en_--

Fire Safety & Security Products 16.04.2009

3.2.1 C-LINE

The C-LINE detectors are characterized by a very high detection reliability combined with a high immunity to deceptive phenomena. The detectors have two parameter sets, by means of which they can be adapted to the conditions prevailing at the installation location.

Operating mode: Signal processing with detection algorithms

The following figure shows signal processing with C-LINE detectors in a diagram.

Sensory

Signal analysis

Algorithms

Result

Danger level

Standard ambience

Selection of parameter

The signals captured by the sensor technology are transmitted to the algorithm. The algorithm analyses and evaluates the course of the signals (signal intensity, rate of rise and fluctuation). The algorithms are set by selecting the parameter set, which sets the detectors to the expected types of fire and ambient influences.

Structure and function

Building Technologies 007004_k_en_--

Fire Safety & Security Products 16.04.2009

3.2.2 S-LINE

Properties

In contrast to the C-LINE detectors, S-LINE detectors have the following features:

z Dynamic influence on the parameter sets

z Pattern recognition

z Real time interpretation of the situation

z Process- and time-controlled switchover of the parameter sets

Signal processing of the S-LINE detectors is based on ASAtechnology (ASA = Advanced Signal Analysis). ASAtechnology can also be characterized as second generation algorithms. Signal processing with ASAtechnology permits optimum adaptation of the detector behavior to the particular ambient conditions.

S-LINE detectors are characterized by their unique detection reliability and high immunity to deceptive phenomena.

Operating mode: Signal processing with ASAtechnology

The following figure shows signal processing with S-LINE detectors in the form of a diagram.

Dynamic influence of parameter

Environment

Evaluation of the situation

Danger level

Result

Algorithms

Signal analysis

Sensory

The signals captured by the sensory are transmitted to the algorithm. The algorithms are set by selecting the parameter set.

Structure and function

Building Technologies 007004_k_en_--

Fire Safety & Security Products 16.04.2009

Algorithms

In comparison to the detection algorithms (DA), the individual parameters of the selected parameter set can be adapted with ASAtechnology. A real time interpretation of the situation leads to a dynamic influence on the algorithm. This results in a broadening of the application range of the parameter set and thus of the detector. The detector reacts more sensitively in the event of fire, and more robustly in the event of deceptive phenomena.

Switching over the parameter set

In addition to the selection of the parameter set, the S-LINE detectors enable timeor process-controlled switching over of the parameter sets (Manned/Unmanned switchover). Thanks to this function, the detector can be used in places where the situation changes regularly and frequently (e.g. kitchen, production hall).

Downloadable parameter sets

Detectors of the S-LINE have several permanently programmed parameter sets. For special applications new, additional parameter sets can be downloaded in the field (depending on the control panel).

Structure and function

Building Technologies 007004_k_en_--

Fire Safety & Security Products 16.04.2009

3.3 Detectors

3.3.1 Neural fire detector

The neural fire detector is a multiple criteria fire detector and is equipped with two optical and two thermal sensors. The following neural fire detectors are available:

z FDOOT241-9

z FDOOT241-8

z FDOOT221

The following table shows the most important differences between the neural fire detectors.

Parameter FDOOT241-9 FDOOT241-8 FDOOT221

Signal processing ASAtechnology ASAtechnology Detection algorithms

Communication protocol z FDnet

z Collective

z FDnet z MS8

z FDnet

Structure and function

1 2

1 Heat sensors 3 Forward scatterer

2 Backward scatterer 4 Labyrinth

The detector has a sophisticated opto-electronic measuring chamber with two optical emitters, an optical receiver and two thermal sensors.

The transmitters illuminate the smoke particles from different angles. One sensor acts as forward scatterer, the other as backward scatterer. The scattered light then hits the receiver (photodiode) and generates a measurable electric signal.

The combination of a forward and backward scatterer facilitates an optimum detection and the differentiation of light and dark particles, which leads to a homogenous response behavior and optimizes the differentiation of wanted signals and deceptive phenomena.

Structure and function

Building Technologies 007004_k_en_--

Fire Safety & Security Products 16.04.2009

In addition, the heat sensors make it possible to detect fires without smoke generation.

The combination of optical and thermal sensor signals optimizes detection reliability. This has the following advantages:

z Early detection of all types of fire, whether they generate light or dark smoke, or

no smoke at all.

z The neural fire detector can be operated at a lower sensitivity level and thus

achieves a higher immunity against false alarms which may otherwise be

caused by cold aerosols (e.g. by smoking, electrical welding, etc.). In the case

of an open fire, the smoke sensitivity is heightened by the temperature

increase, which means that a detection reliability level that is comparable to

that of the wide-spectrum smoke detector can be achieved.

The neural fire detectors FDOOT241-8/9 may as well be applied either as optical smoke detectors or as out-and-out heat detectors. This is possible by selecting one of the following sensor modes (with the detector exchanger and tester or on the control panel):

z Sensor mode 0: Application as neural fire detector

z Sensor mode 1: Application as heat detector

z Sensor mode 2: Application as smoke detector

In sensor mode 1 or 2 the parameter sets of the heat detector FDT241 or of the wide-spectrum smoke detector FDO241, respectively, can be selected. Then, these neural fire detectors behave like the heat detector FDT241 or smoke detector FDO241.

3.3.1.1 Variants of the FDOOT241-9

The neural fire detector FDOOT241-9 is available in three different variants A, B and C. The compatibility differs depending on the variant. The following table provides an overview of the compatibility of the different variants. Refer to document 008331 'List of compatibility' for compatibility details.

Variants Part number Product version Compatibility

FDnet Collective control

panels from Germany

Collective control panels from Switzerland

A A5Q00004813 < 13 X X –

B A5Q00015955 13 ≤ ES < 30 X – only CZ10

C A5Q00004813 ≥ 30 X X X

Notes

z Variant B has been available only as kit (FDOOT241-9M) consisting of the

neural fire detector and the detector base FDB201.

z The specifications of variant B largely correspond to those of variant A. Any

possible deviations are marked accordingly in this document.

z Variant C is available both as single detector and as kit (FDOOT241-9M).

Structure and function

Building Technologies 007004_k_en_--

Fire Safety & Security Products 16.04.2009

The following figure shows how the different variants are marked (to the left: Variant B; to the right: Variants A and C).

3.3.2 Wide-spectrum smoke detector

The wide-spectrum smoke detector is an optical smoke detector with an optical sensor. It works according to the principle of forward scattering. This detector reacts with extreme sensitivity to light fire aerosols. The following wide-spectrum smoke detectors are available:

z FDO241 (with ASAtechnology)

z FDO221 (with detection algorithms)

Structure and function

1 Labyrinth 2 Forward scatterer

The wide-spectrum smoke detector has the same measuring chamber as the neural fire detector, however, it has only a forward scatterer. The increased sensitivity makes the early detection of smoldering and open fires possible.

Structure and function

Building Technologies 007004_k_en_--

Fire Safety & Security Products 16.04.2009

3.3.3 Heat detector

The heat detector is a pure heat detector with two thermal sensors. The following heat detectors are available:

z FDT241

z FDT221

The following table indicates the most important differences between the two heat detectors.

Parameters FDT241 FDT221

Signal processing ASAtechnology Detection algorithms

Alarm activation by: z Temperature increase

z Reaching the maximum

temperature

z Temperature increase

Setup and function

1 Heat sensors

Thanks to the two sensors, a total failure can be avoided if one of the two sensors fails or breaks down.

Structure and function

Building Technologies 007004_k_en_--

Fire Safety & Security Products 16.04.2009

3.4 Function

3.4.1 Parameter sets

The parameter sets influence the detection behavior of the detectors and specifically set them to the expected fire phenomena and ambient influences in the environment to be monitored.

All parameter sets are programmed in the detectors. During commissioning, the optimum parameter set must be selected for the conditions at the place of installation. On a FDnet detector line, this is carried out at the control panel. On a collective or MS8 detector line this is done with the detector exchanger and tester.

On a FDnet detector line, the parameter set must always be set explicitly. Unless a parameter set is selected in collective or MS8 operation, the detector works with the default parameter set '0'. In this case the number of the selected parameter set is always '0'.

Siemens FDOOT241-9, FDOOT221, FDOOT241-8, FDO241, FDO221 Technical Manual

Specifications and Main Features

Frequently Asked Questions

User Manual