Alarm systems - Intrusion and hold-up systems - Part 2-3: Requirements for microwave detectors

This document is for microwave detectors installed in buildings and provides for security grades 1 to 4 (see EN 50131-1), specific or non-specific wired or wire-free detectors, and uses environmental classes I to IV (see EN 50130-5). This document does not include requirements for detectors intended for use outdoors.
The purpose of the detector is to emit microwave signals and analyse the signals that are returned to detect an intruder and to provide the necessary range of signals or messages to be used by the rest of the intrusion alarm system.
The grade-dependent requirements of this document apply and it is essential that a detector fulfils all the requirements of the specified grade.
Functions additional to the mandatory functions specified in this document can be included in the detector, providing they do not influence the correct operation of the mandatory functions.
Requirements for system interconnections are not included in this document.

Alarmanlagen - Einbruch- und Überfallmeldeanlagen - Teil 2-3: Anforderungen an Mikrowellenmelder

Dieses Dokument gilt für in Gebäuden installierte Mikrowellenmelder und berücksichtigt die Sicherheitsgrade 1 bis 4 (siehe EN 50131-1), exklusiv oder nicht exklusiv verdrahtete oder drahtlose Melder und deckt die Umweltklassen I bis IV ab (siehe EN 50130-5). Dieses Dokument enthält keine Anforderungen an Melder, die für die Verwendung im Freien vorgesehen sind. Der Zweck des Melders ist es, Mikrowellensignale auszusenden und die zurückgesendeten Signale zu analysieren, um einen Eindringling zu erkennen und die erforderliche Auswahl von Signalen oder Meldungen, die vom übrigen Teil der Einbruchmeldeanlage verwendet werden, zur Verfügung zu stellen. Es gelten die vom Grad abhängigen Anforderungen in diesem Dokument und es ist von grundlegender Bedeutung, dass ein Melder alle Anforderungen des festgelegten Grades erfüllt. Zusätzlich zu den in diesem Dokument festgelegten verbindlichen Funktionen kann ein Melder über weitere Funktionen verfügen, sofern diese nicht den ordnungsgemäßen Betrieb der verbindlichen Funktionen beeinträchtigen. Dieses Dokument umfasst keine Verbindungen zwischen Anlageteilen.

Systèmes d’alarme - Systèmes d'alarme contre l’intrusion et les hold-up - Partie 2-3 : Exigences pour détecteurs à hyperfréquences

Alarmni sistemi - Sistemi za javljanje vloma in ropa - 2-3. del: Zahteve za mikrovalovne javljalnike

Ta dokument se uporablja za mikrovalovne javljalnike, ki so nameščeni v zgradbah, določa varnostne razrede od 1 do 4 (glej EN 50131-1) in lastnosti specifičnih oziroma nespecifičnih kabelskih ali brezžičnih javljalnikov ter uporablja okoljske razrede od I do IV (glej EN 50130-5). Ta dokument ne zajema zahtev za javljalnike, namenjene za zunanjo uporabo.
Namen javljalnika je oddajanje mikrovalovnih signalov in analiziranje prejetih signalov za zaznavanje vsiljivca, ter zagotavljanje potrebnega obsega signalov ali sporočil, ki jih uporablja preostali del sistema za javljanje vloma.
Zahteve javljalnika, ki veljajo v tem dokumentu, so odvisne od razreda, pri čemer je bistveno, da javljalnik izpolnjuje vse zahteve določenega razreda.
Poleg obveznih funkcij, ki so opredeljene v tem dokumentu, ima lahko javljalnik tudi dodatne funkcije, pri čemer te ne smejo vplivati na pravilno delovanje obveznih funkcij.
Zahteve za medsebojne sistemske povezave niso vključene v ta dokument.

General Information

Status
Published
Public Enquiry End Date
22-Jul-2021
Publication Date
09-Jan-2022
Technical Committee
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
03-Jan-2022
Due Date
10-Mar-2022
Completion Date
10-Jan-2022

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Standards Content (sample)

SLOVENSKI STANDARD
SIST EN 50131-2-3:2022
01-februar-2022
Nadomešča:
SIST EN 50131-2-3:2009
SIST EN 50131-2-3:2009/IS1:2014
Alarmni sistemi - Sistemi za javljanje vloma in ropa - 2-3. del: Zahteve za
mikrovalovne javljalnike

Alarm systems - Intrusion and hold-up systems - Part 2-3: Requirements for microwave

detectors

Systèmes d’alarme - Systèmes d'alarme contre l’intrusion et les hold-up - Partie 2-3 :

Exigences pour détecteurs à hyperfréquences
Ta slovenski standard je istoveten z: EN 50131-2-3:2021
ICS:
13.310 Varstvo pred kriminalom Protection against crime
13.320 Alarmni in opozorilni sistemi Alarm and warning systems
SIST EN 50131-2-3:2022 en,fr

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
SIST EN 50131-2-3:2022
---------------------- Page: 2 ----------------------
SIST EN 50131-2-3:2022
EUROPEAN STANDARD EN 50131-2-3
NORME EUROPÉENNE
EUROPÄISCHE NORM
December 2021
ICS 13.320 Supersedes EN 50131-2-3:2008,
EN 50131-2-3:2008/IS1:2014 and all of its amendments
and corrigenda (if any)
English Version
Alarm systems - Intrusion and hold-up systems - Part 2-3:
Requirements for microwave detectors

Systèmes d'alarme - Systèmes d'alarme contre l'intrusion et Alarmanlagen - Einbruch- und Überfallmeldeanlagen -

les hold-up - Partie 2-3 : Exigences pour détecteurs à Teil 2-3: Anforderungen an Mikrowellenmelder

hyperfréquences

This European Standard was approved by CENELEC on 2021-11-11. CENELEC members are bound to comply with the CEN/CENELEC

Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.

Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC

Management Centre or to any CENELEC member.

This European Standard exists in three official versions (English, French, German). A version in any other language made by translation

under the responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the

same status as the official versions.

CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,

Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the

Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,

Turkey and the United Kingdom.
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels

© 2021 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.

Ref. No. EN 50131-2-3:2021 E
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SIST EN 50131-2-3:2022
EN 50131-2-3:2021 (E)
Contents Page

European foreword ................................................................................................................................. 3

Introduction ............................................................................................................................................. 5

1 Scope ................................................................................................................................................. 6

2 Normative references ....................................................................................................................... 6

3 Terms, definitions and abbreviations ............................................................................................ 7

4 Functional requirements ................................................................................................................. 8

5 Marking, identification and documentation .................................................................................14

6 Testing .............................................................................................................................................15

Annex A (normative) Dimensions and requirements of the standardized test magnets .............28

A.1 Introduction ..................................................................................................................28

A.2 Requirements ...............................................................................................................28

Annex B (normative) General testing matrix ....................................................................................31

Annex C (normative) Walk test diagrams .........................................................................................33

Annex D (informative) Equipment for walk test velocity control....................................................41

D.1 General ..........................................................................................................................41

D.2 Moving light source guiding system .........................................................................41

D.3 Metronome ....................................................................................................................41

Annex E (informative) Immunity to microwave signal interference by fluorescent lights ...........42

Annex F (informative) Example list of small tools ...........................................................................43

Annex G (informative) Test for resistance to re-orientation of adjustable mountings ................44

Bibliography ..........................................................................................................................................46

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SIST EN 50131-2-3:2022
EN 50131-2-3:2021 (E)
European foreword

This document (EN 50131-2-3:2021) has been prepared by CLC/TC 79, “Alarm systems”.

The following dates are fixed:
• latest date by which this document has to be (dop) 2022-11-11
implemented at national level by publication of
an identical national standard or by
endorsement
• latest date by which the national standards (dow) 2024-11-11
conflicting with this document have to be
withdrawn

This document supersedes EN 50131-2-3:2008 and all of its amendments and corrigenda (if any).

EN 50131-2-3:2021 includes the following significant technical changes with respect to

EN 50131-2-3:2008:
— editorial changes and refinement of wording;
— clarification to significant reduction of range requirements;

— clarification to the Electrical requirements section and certain environmental conditions;

— addition of requirements, tests and corresponding Annexes throughout the overall standard, to

support ceiling mounted detectors;
— improvement of the requirements of the supplied documentation;
— improvement of the standard conditions for testing;

— addition of chapter which defines the condition for the mounting height while the tests are

performed;
— refinement of the standard requirements for the Testing procedures;

— refinement of the Immunity to air flow test to allow for better repeatability of the test results;

— verifying and clarifying of the wording of the test for resistance to or detection of re-orientation of

adjustable mountings;

— updating of the test magnet specification for resistance to magnetic field interference;

— verifying and clarifying of the wording for the detection of detector masking in regards to the

conditions and the test material;

— review and optimization of the methods for temperature adjustments for the test environment;

— review of Sample Testmatrix;
— review and verifying of references to other standards.

EN 50131 will consist of the following parts, under the general title Alarm systems - Intrusion and hold-

up systems:
— Part 1: System requirements
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SIST EN 50131-2-3:2022
EN 50131-2-3:2021 (E)
— Part 2–2: Intrusion detectors – Passive infrared detectors
— Part 2–3: Intrusion detectors – Microwave detectors

— Part 2–4: Intrusion detectors – Combined passive infrared / Microwave detectors

— Part 2–5: Intrusion detectors – Combined passive infrared / Ultrasonic detectors

— Part 2–6: Intrusion detectors – Opening contacts
— Part 2–7–1: Intrusion detectors – Glass break detectors – Acoustic
— Part 2–7–2: Intrusion detectors – Glass break detectors – Passive
— Part 2–7–3: Intrusion detectors – Glass break detectors – Active
— Part 3: Control and indicating equipment
— Part 4: Warning devices

— Part 5–3: Requirements for interconnections equipment using radio frequency techniques

— Part 6: Power supplies
— Part 7: Application guidelines
— Part 8: Security fog devices
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SIST EN 50131-2-3:2022
EN 50131-2-3:2021 (E)
Introduction

This document deals with microwave detectors (to be referred to as the detector) used as part of

intrusion alarm systems installed in buildings. It includes four security grades and four environmental

classes.

The purpose of the detector is to emit microwave signals and analyse the signals that are returned to

detect an intruder and to provide the necessary range of signals or messages to be used by the rest of

the intrusion alarm system.

The number and scope of these signals or messages will be more comprehensive for systems that are

specified at the higher grades.

This version of the standard contains limited requirements for Grade 4 detectors. Future revisions of the

standard are expected to include enhanced requirements for Grade 4 detectors.

This document is only concerned with the requirements and tests for the detector. Other types of

detector are covered by other documents identified as in the EN 50131-2 series.

NOTE Each country has certain regulations in regards to which part of the microwave spectrum is allowed to

be used in this application. This information can be found in ERC recommendation 70-03.

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SIST EN 50131-2-3:2022
EN 50131-2-3:2021 (E)
1 Scope

This document is for microwave detectors installed in buildings and provides for security grades 1 to 4

(see EN 50131-1), specific or non-specific wired or wire-free detectors, and uses environmental classes

I to IV (see EN 50130-5). This document does not include requirements for detectors intended for use

outdoors.

The purpose of the detector is to emit microwave signals and analyse the signals that are returned to

detect an intruder and to provide the necessary range of signals or messages to be used by the rest of

the intrusion alarm system.

The grade-dependent requirements of this document apply and it is essential that a detector fulfils all

the requirements of the specified grade.

Functions additional to the mandatory functions specified in this document can be included in the

detector, providing they do not influence the correct operation of the mandatory functions.

Requirements for system interconnections are not included in this document.
2 Normative references

The following documents are referred to in the text in such a way that some or all of their content

constitutes requirements of this document. For dated references, only the edition cited applies. For

undated references, the latest edition of the referenced document (including any amendments) applies.

EN 50130-4, Alarm systems - Part 4: Electromagnetic compatibility - Product family standard: Immunity

requirements for components of fire, intruder, hold up, CCTV, access control and social alarm systems

EN 50130-5, Alarm systems - Part 5: Environmental test methods

EN 50131-1, Alarm systems - Intrusion and hold-up systems - Part 1: System requirements

EN 60404-5, Magnetic materials - Part 5: Permanent magnet (magnetically hard) materials - Methods

of measurement of magnetic properties (IEC 60404-5)

EN 60404-8-1, Magnetic materials - Part 8-1: Specifications for individual materials - Magnetically hard

materials (IEC 60404-8-1)

EN 60404-14, Magnetic materials - Part 14: Methods of measurement of the magnetic dipole moment

of a ferromagnetic material specimen by the withdrawal or rotation method (IEC 60404-14)

---------------------- Page: 8 ----------------------
SIST EN 50131-2-3:2022
EN 50131-2-3:2021 (E)
3 Terms, definitions and abbreviations
3.1 Terms and definitions

For the purposes of this document, the terms, definitions and abbreviations given in EN 50131-1 and

the following apply.

ISO and IEC maintain terminological databases for use in standardization at the following addresses:

— IEC Electropedia: available at https://www.electropedia.org/
— ISO Online browsing platform: available at https://www.iso.org/obp
3.1.1
basic detection target
microwave reflector designed to verify the operation of a detector
3.1.2
coverage angle

width of field of view in degrees provided by the detector when measured in the horizontal plane

3.1.3
detection settings

adjustments which influence the performance of the detector (e.g. Sensitivity (distance moved), gain

settings (detection range)
3.1.4
detector reference axis

virtual line determined by the detector manufacturer projecting from the point of origin of the detection

coverage pattern
3.1.5
incorrect operation

physical condition that causes an inappropriate signal from a detector in the context of this document

3.1.6
masking

interference with the ability to detect human intruders by the introduction of a physical obstruction such

as metal, plastic, paper or sprayed paints or lacquers on or in close proximity to the detector

3.1.7
microwave detector

device used to determine the presence of human intruders by sensing the differences between emitted

and reflected microwave signals due to movement
3.1.8
simulated walk test target
non-human microwave reflector designed to simulate the standard walk test target
3.1.9
standard walk test target
human being of defined weight and height clothed in close fitting garments
3.1.10
walk test

operational test to demonstrate detection performance during which a detector is stimulated by the

standard walk test target in a controlled environment
3.1.11
walk test attitude, crawling

orientation of the standard walk test target moving with hands and knees in contact with the floor

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SIST EN 50131-2-3:2022
EN 50131-2-3:2021 (E)
3.1.12
walk test attitude, upright

orientation of the standard walk test target standing and walking with arms held at the sides of the body

3.2 Abbreviations
EMC Electromagnetic Compatibility
SWT Standard Walk-test Target
BDT Basic Detection Target
FOV Field Of View
4 Functional requirements
4.1 Event processing
Detectors shall process the events shown in Table 1.
Table 1 — Events to be processed by grade
Grade
Event
1 2 3 4
Intrusion Detection M M M M
Tamper Detection Op M M M
Masking Detection Op Op M M
Low Supply Voltage Op Op M M
Total Loss of Power Supply Op M M M
Local Self-Test Op Op M M
Remote Self-Test Op Op Op M
M = Mandatory
Op = Optional
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SIST EN 50131-2-3:2022
EN 50131-2-3:2021 (E)
Detectors shall generate signals or messages as shown in Table 2.
Table 2 — Generation of Signals or Messages
Signals or Messages
Event
Intrusion Tamper Fault
No Event NP NP NP
Intrusion M NP NP
Tamper NP M NP
Masking M Op M
Low Supply Voltage Op Op M
Total Loss of Power Supply M Op Op
Local Self-Test Pass NP NP NP
Local Self-Test Fail NP NP M
Remote Self-Test Pass M NP NP
Remote Self-Test Fail NP NP M
M = Mandatory
NP = Not Permitted
Op = Optional

This permits two methods of signalling a masking: either by the intrusion signal and fault signal, or by a

dedicated masking or message. Use of the intrusion signal and fault signal is preferable, as this requires

fewer connections between CIE and detector. If multiple events overlap there will be some signal

combinations that may be ambiguous. To overcome this ambiguity it is suggested that detectors should

not signal ‘intrusion‘ and ‘fault‘ at the same time except to indicate masking. This implies that the detector

should prioritize signals, e.g. 1 Intrusion, 2 Fault, 3 Masking.

When, in Table 1, an event may optionally generate signals or messages, they shall be as shown in this

table.
An independent signal or message may be provided instead.
Total loss of Power Supply does not apply for message based detectors.
4.2 Detection
4.2.1 Detection performance

The detector shall generate an intrusion signal or message when the standard or simulated walk-test

target moves at velocities and attitudes specified in Table 3. For detection across the boundary the walk-

test distance shall be 1,5 m either side of the boundary. For test “Detection within the boundary” the

walk-test distance shall be 3,0 m.
---------------------- Page: 11 ----------------------
SIST EN 50131-2-3:2022
EN 50131-2-3:2021 (E)
Table 3 — General walk test velocity and attitude requirements
Test Grade 1 Grade 2 Grade 3 Grade 4
Detection across the boundary Required Required Required Required
−1 −1 −1 −1
Velocity 1,0 ms 1,0 ms 1,0 ms 1,0 ms
Attitude Upright Upright Upright Upright
Detection within the boundary Required Required Required Required
−1 −1 −1 −1
Velocity 0,3 ms 0,3 ms 0,2 ms 0,1 ms
Attitude Upright Upright Upright Upright
Detection at high velocity Not required Required Required Required
−1 −1 −1
Velocity N/A 2,0 ms 2,5 ms 3,0 ms
Attitude N/A Upright Upright Upright
Close-in detection performance
Required Required Required Required
(For coverage angles less than or equal
to 180°)
Distance 2,0 m 2,0 m 0,5 m 0,5 m
−1 −1 −1 −1
Velocity 0,5 ms 0,4 ms 0,3 ms 0,2 ms
Attitude Upright Upright Crawling Crawling
Detection of radial movement
Required Required Required Required
(For coverage angles of 360°)
−1 −1 −1 −1
Velocity 0,5 ms 0,4 ms 0,3 ms 0,2 ms
Attitude Upright Upright Upright Upright
Intermittent movement detection
Not required Not required Required Required
performance
−1 −1
Velocity N/A N/A 1,0 ms 1,0 ms
Attitude N/A N/A Upright Upright

The detector shall provide an intrusion signal or message either during the walk test or within 10 s of

its completion

For grade 3 and 4 detectors, the intermittent movement shall consist of the SWT walking 1 m at a velocity of

1,0 ms-1 then pausing for 5 s before continuing. The sequence shall be maintained until the SWT has traversed

through the entire detection area. This constitutes one walk test. The test shall be repeated in each of the

directions shown in Figure C.3.

The detection performance tests required for a detector will depend on the coverage angle claimed.

Therefore this document differentiates between detectors with coverage angles less than or equal to

180°, such as those typically used for wall mounted applications, and detectors with coverage angles of

360° detectors intended for ceiling mounting.
4.2.2 Indication of detection

An indicator shall be provided at the detector to indicate when an intrusion signal or message has been

generated. At grades 1 and 2 this indicator shall be capable of being enabled and disabled either

remotely at Access Level 2 and/or locally enabled/disabled after removal of a cover which provides

tamper detection as described in Tables 1 and 4. At grades 3 and 4 this indicator shall be capable of

being enabled and disabled remotely at Access Level 2.
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SIST EN 50131-2-3:2022
EN 50131-2-3:2021 (E)
4.3 Operational requirements
4.3.1 Time interval between intrusion signals or messages

Detectors using wired interconnections shall be able to provide an intrusion signal or message not more

than 15 s after the end of the preceding intrusion signal or message.

Detectors using wire free interconnections shall be able to provide an intrusion signal or message after

the end of the preceding intrusion signal or message within the following times:
Grade 1 300 s
Grade 2 180 s
Grade 3 30 s
Grade 4 15 s
4.3.2 Switch on delay

The detector shall meet all functional requirements within 180 s of the power supply reaching its nominal

voltage as specified by the manufacturer.
4.3.3 Self-tests
4.3.3.1 General

Self-tests shall detect failures of a critical function (e.g. unable to detect the reflected microwave signals)

and signal these situations according to Table 2. As a minimum a self-test shall detect failures of the

output of the sensing technology.
4.3.3.2 Local Self-Test

The detector shall automatically test itself at least once every 24 h according to the requirements of

Tables 1 and 2. If normal operation of the detector is inhibited during a local self-test, the detector

inhibition time shall be limited to a maximum of 30 s in any period of 2 h.
4.3.3.3 Remote Self-Test

A detector shall process remote self-tests and generate signals or messages in accordance with

Tables 1 and 2 within 10 s of the remote self-test signal being received, and shall return to normal

operation within 30 s of the remote test signal being received.
4.4 Immunity to incorrect operation
4.4.1 General

The detector shall be considered to have sufficient immunity to incorrect operation if the following

requirements have been met. No intrusion signal or message shall be generated during the tests.

4.4.2 Immunity to microwave signal interference by fluorescent lights

The microwave detector shall not initiate the generation of any signals or messages due to the operation

of a fluorescent light source mounted nearby.
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SIST EN 50131-2-3:2022
EN 50131-2-3:2021 (E)
4.5 Tamper security
4.5.1 General
Tamper security requirements for each grade of detector are shown in Table 4.
Table 4 — Tamper security requirements
Requirement Grade 1 Grade 2 Grade 3 Grade 4
Resistance to access to the inside of the
Required Required Required Required
detector
Detection of access to the inside of the
Not Required Required Required Required
detector
Removal from the mounting surface wired
Not required Not Required Required Required
detectors
Removal from the mounting surface wire
Not required Required Required Required
free detectors
Resistance to, or detection of, re-
Not required Required Required Required
orientation
Applied torque 2 Nm 5 Nm 10 Nm
Magnetic field immunity Not required Required Required Required
Magnet Type defined in Annex A Type 1 Type 2 Type 2
Masking Detection Not required Not required Required Required

4.5.2 Resistance to and detection of unauthorised access to components and means of

adjustment

All components, means of adjustment and access to mounting screws, which, when interfered with,

could adversely affect the operation of the detector, shall be located within the detector housing. Such

access shall require the use of an appropriate tool and depending on the grade as specified in Table 4

shall generate a tamper signal or message before access can be gained.

It shall not be possible to gain such access without generating a tamper signal or message or causing

visible damage.
4.5.3 Detection of removal from the mounting surface

A tamper signal or message shall be generated if the detector is removed from its mounting surface for

each claimed mounting type (e.g. wall, ceiling, corner, brackets) in accordance with Table 4.

The tamper detection mechanism shall not be defeated by the use of small tools as per the examples

in Annex F.
4.5.4 Resistance to, or detection of, re-orientation
Detectors mounted on adjustable mountings, shall resist or detect reorientation.

After the torque given in Table 4 has been applied and then removed from the detector it shall not have

rotated more than 5° from its original position. Alternatively, when the torque given in Table 4 has been

applied, a tamper signal or message shall be generated if the detector rotates by more than 5°.

4.5.5 Immunity to magnetic field interference

It shall not be possible to inhibit any signal or message with a magnet of grade dependence according

to Table 4. The magnet types shall be as described in Annex A.
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SIST EN 50131-2-3:2022
EN 50131-2-3:2021 (E)
4.5.6 Detection of masking

Means shall be provided to detect inhibition of the operation of the detector by masking according to the

requirements of Table 4.

The maximum response time for the masking detection device shall be 180 s. Masking shall be signalled

according to the requirements of Table 2. The signals or messages shall remain for at least as long as

the masking condition is present. A masking signal or message shall not be reset while the masking

condition is still present. Alternatively, the masking signal or message shall be generated again within

180 s of being reset if the masking condition is still present.

NOTE From a system design point of view it would be preferable for masked detectors to automatically reset

after the masking condition is removed.

No masking signal or message shall be generated by normal human movement according to Figure C.5.

For detectors where detection of masking may be remotely disabled the detection of masking shall

operate when the I&HAS is unset; it is not required to operate when the I&HAS is set.

4.6 Electrical requirements
4.6.1 General

The grade-dependencies appear in Table 5. These requirements do not apply to detectors having

internal Type C power supplies. For these detectors, refer to EN 50131-6.
Table 5 — Electrical requirements
Test Grade 1 Grade 2 Grade 3 Grade 4
Detector current consumption Required Required Required Required
Input voltage range Required Required Required Required
Slow input voltage rise Not required Required Required Required
Input voltage ripple Not required Required Required Required
Input voltage step change Not required Required Required Required
4.6.2 Detector current consumption

The detector's quiescent and maximum current consumption shall not exceed the figures claimed by the

manufacturer at the nominal input voltage.
4.6.3 Slow input voltage change and voltage range limits

The detector shall meet all functional requirements when the input voltage lies between ± 25 % of the

nominal value, or between the manufacturer’s stated values if greater. When the supply voltage is

lowered slowly, the detector shall function normally at the specified range limits.

The detector shall generate a fault signal or message according to Table 1 and 2, prior to the situation

where the detector is unable to function correctly due to low supply voltage.
4.6.4 Input voltage ripple

The detector shall meet all functional requirements during the modulation of the input voltage by a peak

to peak voltage of 10 % of the nominal value, at a frequency of 100 Hz.
4.6.5 Input voltage step change

No signals or messages shall be caused by a step in the input voltage between nominal and maximum

and between nominal and minimum.
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EN 50131-2-3:2021 (E)
4.7 Environmental classification and conditions
4.7.1 Environmental classification

The environmental classification is described in EN 50131-1 and shall be specified by the manufacturer.

4.7.2 Immunity to environmental conditions

Detectors shall meet the requirements of the environmental tests described in Tables 7 and 8. These

tests shall be performed in accordance with EN 50130-4 and EN 50130-5.

Unless specified otherwise for operational tests, the detector shall not generate unintentional intrusion,

tamper, fault or other signals or messages when subjected to the specified range of environmental

conditions.

Impact tests shall not be carried out on delicate detector components such as LEDs, optical windows or

lenses.

For endurance tests, the detector shall continue to meet the requirements of this document after being

subjected to the specified range of environmental conditions.
5 Marking, identification and documentation
5.1 Marking and/or identification

Marking and/or identification shall be applied to the product in accordance with the requirements of

EN 50131-1.
5.2 Documentation

The product shall be accompanied with clear and concise documentation conforming to the main

systems document EN 50131-1. The documentation shall additionally state:

a) a list of all options, functions, inputs, signals or messages, indications and their relevant

characteristics;

b) the manufacturer’s diagram as scaled drawing of the detector and its claimed detection boundary

showing top and side elevations at the claimed nominal mounting height, superimposed upon a

scaled 2,0 m squared grid. The size of the grid shall be directly related to the size of the claimed

detection boundary;

c) the claimed nominal mounting height, and the effect of changes to it on the claimed detection

boundary;

d) the effect of adjustable controls on the detector’s performance or on the claimed detection boundary

including at least the minimum and maximum settings;
e) any disallowed field adjustable control settings or combinations of these;

f) any specific settings needed to meet the requirements of this document at the claimed grade;

g) any non-compliant detection settings shall be identified;

h) where alignment adjustments are provided, these shall be labelled as to their function;

i) a war
...

SLOVENSKI STANDARD
oSIST prEN 50131-2-3:2021
01-julij-2021
Alarmni sistemi - Sistemi za javljanje vloma in ropa - 2-3. del: Zahteve za
mikrovalovne javljalnike

Alarm systems - Intrusion and hold-up systems - Part 2-3: Requirements for microwave

detectors

Systèmes d’alarme - Systèmes d'alarme contre l’intrusion et les hold-up - Partie 2-3 :

Exigences pour détecteurs à hyperfréquences
Ta slovenski standard je istoveten z: prEN 50131-2-3:2021
ICS:
13.310 Varstvo pred kriminalom Protection against crime
13.320 Alarmni in opozorilni sistemi Alarm and warning systems
oSIST prEN 50131-2-3:2021 en

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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oSIST prEN 50131-2-3:2021
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oSIST prEN 50131-2-3:2021
EUROPEAN STANDARD DRAFT
prEN 50131-2-3
NORME EUROPÉENNE
EUROPÄISCHE NORM
April 2021
ICS 13.320 Will supersede EN 50131-2-3:2008, EN 50131-2-
3:2008/IS1:2014 and all of its amendments and corrigenda
(if any)
English Version
Alarm systems - Intrusion and hold-up systems - Part 2-3:
Requirements for microwave detectors
Systèmes d'alarme - Systèmes d'alarme contre l'intrusion et To be completed
les hold-up - Partie 2-3 : Exigences pour détecteurs à
hyperfréquences
This draft European Standard is submitted to CENELEC members for enquiry.
Deadline for CENELEC: 2021-07-23.
It has been drawn up by CLC/TC 79.

If this draft becomes a European Standard, CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which

stipulate the conditions for giving this European Standard the status of a national standard without any alteration.

This draft European Standard was established by CENELEC in three official versions (English, French, German).

A version in any other language made by translation under the responsibility of a CENELEC member into its own language and notified to

the CEN-CENELEC Management Centre has the same status as the official versions.

CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,

Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the

Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,

Turkey and the United Kingdom.

Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are aware and to

provide supporting documentation.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without notice and

shall not be referred to as a European Standard.
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels

© 2021 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.

Project: 73005 Ref. No. prEN 50131-2-3:2021 E
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prEN 50131-2-3:2021 (E)
1 Contents Page

3 European foreword ................................................................................................................................. 3

4 Introduction ............................................................................................................................................. 5

5 1 Scope ................................................................................................................................................. 6

6 2 Normative references ....................................................................................................................... 6

7 3 Terms, definitions and abbreviations ............................................................................................ 7

8 4 Functional requirements ................................................................................................................. 8

9 5 Marking, identification and documentation .................................................................................14

10 6 Testing .............................................................................................................................................15

11 Annex A (normative) Dimensions and requirements of the standardized test magnets .............28

12 A.1 Introduction ..................................................................................................................28

13 A.2 Requirements ...............................................................................................................28

14 Annex B (normative) General testing matrix ....................................................................................31

15 Annex C (normative) Walk test diagrams .........................................................................................33

16 Annex D (informative) Equipment for walk test velocity control....................................................42

17 D.1 General ..........................................................................................................................42

18 D.2 Moving light source guiding system .........................................................................42

19 D.3 Metronome ....................................................................................................................42

20 Annex E (informative) Immunity to microwave signal interference by fluorescent lights ...........43

21 Annex F (informative) Example list of small tools ...........................................................................44

22 Annex G (informative) Test for resistance to re-orientation of adjustable mountings ................45

23 Bibliography ..........................................................................................................................................46

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26 European foreword

27 This document (prEN 50131-2-3:2021) has been prepared by CLC/TC 79, “Alarm systems”.

28 This document is currently submitted to Enquiry.
29 The following dates are proposed:
• latest date by which the existence of this (doa) dor + 6 months
document has to be announced at national
level
• latest date by which this document has to be (dop) dor + 12 months
implemented at national level by publication of
an identical national standard or by
endorsement
• latest date by which the national standards (dow) dor + 36 months
conflicting with this document have to be (to be confirmed or
withdrawn modified when voting)

30 This document will supersede EN 50131-2-3:2008 and all of its amendments and corrigenda (if any).

31 prEN 50131-2-3:2021 includes the following significant technical changes with respect to

32 EN 50131-2-3:2008:
33 — editorial changes and refinement of wording;
34 — clarification to significant reduction of range requirements;

35 — clarification to the Electrical requirements section and certain environmental conditions;

36 — addition of requirements, tests and corresponding Annexes throughout the overall standard, to

37 support ceiling mounted detectors;
38 — improvement of the requirements of the supplied documentation;
39 — improvement of the standard conditions for testing;

40 — addition of chapter which defines the condition for the mounting height while the tests are

41 performed;
42 — refinement of the standard requirements for the Testing procedures;

43 — refinement of the Immunity to air flow test to allow for better repeatability of the test results;

44 — verifying and clarifying of the wording of the test for resistance to or detection of re-orientation of

45 adjustable mountings;

46 — updating of the test magnet specification for resistance to magnetic field interference;

47 — verifying and clarifying of the wording for the detection of detector masking in regards to the

48 conditions and the test material;

49 — review and optimization of the methods for temperature adjustments for the test environment;

50 — review of Sample Testmatrix;
51 — review and verifying of references to other standards.
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52 EN 50131 will consist of the following parts, under the general title Alarm systems - Intrusion and hold-

53 up systems:
54 — Part 1: System requirements
55 — Part 2–2: Intrusion detectors – Passive infrared detectors
56 — Part 2–3: Intrusion detectors – Microwave detectors

57 — Part 2–4: Intrusion detectors – Combined passive infrared / Microwave detectors

58 — Part 2–5: Intrusion detectors – Combined passive infrared / Ultrasonic detectors

59 — Part 2–6: Intrusion detectors – Opening contacts
60 — Part 2–7–1: Intrusion detectors – Glass break detectors – Acoustic
61 — Part 2–7–2: Intrusion detectors – Glass break detectors – Passive
62 — Part 2–7–3: Intrusion detectors – Glass break detectors – Active
63 — Part 3: Control and indicating equipment
64 — Part 4: Warning devices

65 — Part 5–3: Requirements for interconnections equipment using radio frequency techniques

66 — Part 6: Power supplies
67 — Part 7: Application guidelines
68 — Part 8: Security fog devices
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69 Introduction

70 This document deals with microwave detectors (to be referred to as the detector) used as part of

71 intrusion alarm systems installed in buildings. It includes four security grades and four environmental

72 classes.

73 The purpose of the detector is to emit microwave signals and analyse the signals that are returned to

74 detect an intruder and to provide the necessary range of signals or messages to be used by the rest of

75 the intrusion alarm system.

76 The number and scope of these signals or messages will be more comprehensive for systems that are

77 specified at the higher grades.

78 This version of the standard contains limited requirements for Grade 4 detectors. Future revisions of the

79 standard are expected to include enhanced requirements for Grade 4 detectors.

80 This document is only concerned with the requirements and tests for the detector. Other types of

81 detector are covered by other documents identified as in the EN 50131-2 series.

82 NOTE Each country has certain regulations in regards to which part of the microwave spectrum is allowed to

83 be used in this application. This information can be found in ERC recommendation 70-03.

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84 1 Scope

85 This document is for microwave detectors installed in buildings and provides for security grades 1 to 4

86 (see EN 50131-1), specific or non-specific wired or wire-free detectors, and uses environmental classes

87 I to IV (see EN 50130-5). This document does not include requirements for detectors intended for use

88 outdoors.

89 The purpose of the detector is to emit microwave signals and analyse the signals that are returned to

90 detect an intruder and to provide the necessary range of signals or messages to be used by the rest of

91 the intrusion alarm system.

92 The grade-dependent requirements of this document apply and it is essential that a detector fulfils all

93 the requirements of the specified grade.

94 Functions additional to the mandatory functions specified in this document can be included in the

95 detector, providing they do not influence the correct operation of the mandatory functions.

96 Requirements for system interconnections are not included in this document.
97 2 Normative references

98 The following documents are referred to in the text in such a way that some or all of their content

99 constitutes requirements of this document. For dated references, only the edition cited applies. For

100 undated references, the latest edition of the referenced document (including any amendments) applies.

101 EN 50130-4, Alarm systems — Part 4: Electromagnetic compatibility — Product family standard:

102 Immunity requirements for components of fire, intruder, hold up, CCTV, access control and social alarm

103 systems
104 EN 50130-5, Alarm systems — Part 5: Environmental test methods

105 EN 50131-1, Alarm systems — Intrusion and hold-up systems — Part 1: System requirements

106 EN 50131-6, Alarm systems — Intrusion and hold-up systems — Part 6: Power supplies

107 EN 60404-5, Magnetic materials — Part 5: Permanent magnet (magnetically hard) materials — Methods

108 of measurement of magnetic properties (IEC 60404-5)

109 EN 60404-8-1, Magnetic materials — Part 8-1: Specifications for individual materials — Magnetically

110 hard materials (IEC 60404-8-1)

111 EN 60404-14, Magnetic materials — Part 14: Methods of measurement of the magnetic dipole moment

112 of a ferromagnetic material specimen by the withdrawal or rotation method (IEC 60404-14)

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113 3 Terms, definitions and abbreviations
114 3.1 Terms and definitions

115 For the purposes of this document, the terms, definitions and abbreviations given in EN 50131-1 and

116 the following apply.

117 ISO and IEC maintain terminological databases for use in standardization at the following addresses:

118 • IEC Electropedia: available at http://www.electropedia.org/
119 • ISO Online browsing platform: available at https://www.iso.org/obp
120 3.1.1
121 basic detection target
122 microwave reflector designed to verify the operation of a detector
123 3.1.2
124 coverage angle

125 width of field of view in degrees provided by the detector when measured in the horizontal plane

126 3.1.3
127 detection settings

128 adjustments which influence the performance of the detector (e.g. Sensitivity (distance moved), gain

129 settings (detection range)
130 3.1.4
131 detector reference axis

132 virtual line determined by the detector manufacturer projecting from the point of origin of the detection

133 coverage pattern
134 3.1.5
135 incorrect operation

136 physical condition that causes an inappropriate signal from a detector in the context of this document

137 3.1.6
138 masking

139 interference with the ability to detect human intruders by the introduction of a physical obstruction such

140 as metal, plastic, paper or sprayed paints or lacquers on or in close proximity to the detector

141 3.1.7
142 microwave detector

143 device used to determine the presence of human intruders by sensing the differences between emitted

144 and reflected microwave signals due to movement
145 3.1.8
146 simulated walk test target

147 non-human microwave reflector designed to simulate the standard walk test target

148 3.1.9
149 standard walk test target
150 human being of defined weight and height clothed in close fitting garments
151 3.1.10
152 walk test

153 operational test to demonstrate detection performance during which a detector is stimulated by the

154 standard walk test target in a controlled environment
155 3.1.11
156 walk test attitude, crawling

157 orientation of the standard walk test target moving with hands and knees in contact with the floor

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158 3.1.12
159 walk test attitude, upright

160 orientation of the standard walk test target standing and walking with arms held at the sides of the body

161 3.2 Abbreviations
EMC Electromagnetic Compatibility
SWT Standard Walk-test Target
BDT Basic Detection Target
FOV Field Of View
162 4 Functional requirements
163 4.1 Event Processing
164 Detectors shall process the events shown in Table 1.
165 Table 1 — Events to be processed by grade
Grade
Event
1 2 3 4
Intrusion Detection M M M M
Tamper Detection Op M M M
Masking Detection Op Op M M
Low Supply Voltage Op Op M M
Total Loss of Power Supply Op M M M
Local Self-Test Op Op M M
Remote Self-Test Op Op Op M
M = Mandatory
Op = Optional
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166 Detectors shall generate signals or messages as shown in Table 2.
167 Table 2 — Generation of Signals or Messages
Signals or Messages
Event
Intrusion Tamper Fault
No Event NP NP NP
Intrusion M NP NP
Tamper NP M NP
Masking M Op M
Low Supply Voltage Op Op M
Total Loss of Power Supply M Op Op
Local Self-Test Pass NP NP NP
Local Self-Test Fail NP NP M
Remote Self-Test Pass M NP NP
Remote Self-Test Fail NP NP M
M = Mandatory
NP = Not Permitted
Op = Optional

This permits two methods of signalling a masking: either by the intrusion signal and fault signal, or by a

dedicated masking or message. Use of the intrusion signal and fault signal is preferable, as this requires

fewer connections between CIE and detector. If multiple events overlap there will be some signal

combinations that may be ambiguous. To overcome this ambiguity it is suggested that detectors should

not signal ‘intrusion‘ and ‘fault‘ at the same time except to indicate masking. This implies that the detector

should prioritize signals, e.g. 1 Intrusion, 2 Fault, 3 Masking.

When, in Table 1, an event may optionally generate signals or messages, they shall be as shown in this

table.
An independent signal or message may be provided instead.
Total loss of Power Supply does not apply for message based detectors.
168 4.2 Detection
169 4.2.1 Detection performance

170 The detector shall generate an intrusion signal or message when the standard or simulated walk-test

171 target moves at velocities and attitudes specified in Table 3. For detection across the boundary the walk-

172 test distance shall be 1,5 m either side of the boundary. For test “Detection within the boundary” the

173 walk-test distance shall be 3,0 m.
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174 Table 3 — General walk test velocity and attitude requirements
Test Grade 1 Grade 2 Grade 3 Grade 4
Detection across the boundary
Required Required Required Required
−1 −1 −1 −1
Velocity 1,0 ms 1,0 ms 1,0 ms 1,0 ms
Attitude Upright Upright Upright Upright
Detection within the boundary Required Required Required Required
−1 −1 −1 −1
Velocity 0,3 ms 0,3 ms 0,2 ms 0,1 ms
Attitude Upright Upright Upright Upright
Detection at high velocity
Not required Required Required Required
−1 −1 −1
Velocity N/A 2,0 ms 2,5 ms 3,0 ms
Attitude N/A Upright Upright Upright
Close-in detection performance
Required Required Required Required
(For coverage angles less than or equal
to 180°)
Distance 2,0 m 2,0 m 0,5 m 0,5 m
−1 −1 −1 −1
Velocity 0,5 ms 0,4 ms 0,3 ms 0,2 ms
Attitude Upright Upright Crawling Crawling
Detection of radial movement
Required Required Required Required
(For coverage angles of 360°)
−1 −1 −1 −1
Velocity 0,5 ms 0,4 ms 0,3 ms 0,2 ms
Attitude Upright Upright Upright Upright
Intermittent movement detection
Not required Not required Required Required
performance
−1 −1
Velocity N/A N/A 1,0 ms 1,0 ms
Attitude N/A N/A Upright Upright

The detector shall provide an intrusion signal or message either during the walk test or within 10 s of its

completion

a For grade 3 and 4 detectors, the intermittent movement shall consist of the SWT walking 1 m at a velocity of 1,0 ms-1 then pausing for 5 s before continuing. The

sequence shall be maintained until the SWT has traversed through the entire detection area. This constitutes one walk test. The test shall be repeated in each of the

directions shown in Figure C.3.

175 The detection performance tests required for a detector will depend on the coverage angle claimed.

176 Therefore this document differentiates between detectors with coverage angles less than or equal to

177 180°, such as those typically used for wall mounted applications, and detectors with coverage angles of

178 360° detectors intended for ceiling mounting.
179 4.2.2 Indication of detection

180 An indicator shall be provided at the detector to indicate when an intrusion signal or message has been

181 generated. At grades 1 and 2 this indicator shall be capable of being enabled and disabled either

182 remotely at Access Level 2 and/or locally enabled/disabled after removal of a cover which provides

183 tamper detection as described in Tables 1 and 4. At grades 3 and 4 this indicator shall be capable of

184 being enabled and disabled remotely at Access Level 2.
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185 4.3 Operational requirements
186 4.3.1 Time interval between intrusion signals or messages

187 Detectors using wired interconnections shall be able to provide an intrusion signal or message not more

188 than 15 s after the end of the preceding intrusion signal or message.

189 Detectors using wire free interconnections shall be able to provide an intrusion signal or message after

190 the end of the preceding intrusion signal or message within the following times:

Grade 1 300 s
Grade 2 180 s
Grade 3 30 s
Grade 4 15 s
191 4.3.2 Switch on delay

192 The detector shall meet all functional requirements within 180 s of the power supply reaching its nominal

193 voltage as specified by the manufacturer.
194 4.3.3 Self-tests
195 4.3.3.1 General

196 Self-tests shall detect failures of a critical function (e.g. unable to detect the reflected microwave signals)

197 and signal these situations according to Table 2. As a minimum a self-test shall detect failures of the

198 output of the sensing technology.
199 4.3.3.2 Local Self-Test

200 The detector shall automatically test itself at least once every 24 h according to the requirements of

201 Tables 1 and 2. If normal operation of the detector is inhibited during a local self-test, the detector

202 inhibition time shall be limited to a maximum of 30 s in any period of 2 h.
203 4.3.3.3 Remote Self-Test

204 A detector shall process remote self-tests and generate signals or messages in accordance with

205 Tables 1 and 2 within 10 s of the remote self-test signal being received, and shall return to normal

206 operation within 30 s of the remote test signal being received.
207 4.4 Immunity to incorrect operation
208 4.4.1 General

209 The detector shall be considered to have sufficient immunity to incorrect operation if the following

210 requirements have been met. No intrusion signal or message shall be generated during the tests.

211 4.4.2 Immunity to microwave signal interference by fluorescent lights

212 The microwave detector shall not initiate the generation of any signals or messages due to the operation

213 of a fluorescent light source mounted nearby.
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214 4.5 Tamper security
215 4.5.1 General

216 Tamper security requirements for each grade of detector are shown in Table 4.

217 Table 4 — Tamper security requirements
Requirement Grade 1 Grade 2 Grade 3 Grade 4
Resistance to access to the inside of the
Required Required Required Required
detector
Detection of access to the inside of the
Not Required Required Required Required
detector
Removal from the mounting surface wired
Not required Not Required Required Required
detectors
Removal from the mounting surface wire
Not required Required Required Required
free detectors

Resistance to, or detection of, re-orientation Not required Required Required Required

Applied torque 2 Nm 5 Nm 10 Nm
Magnetic field immunity Not required Required Required Required
Magnet Type defined in Annex A Type 1 Type 2 Type 2
Masking Detection Not required Not required Required Required

218 4.5.2 Resistance to and detection of unauthorised access to components and means of

219 adjustment

220 All components, means of adjustment and access to mounting screws, which, when interfered with,

221 could adversely affect the operation of the detector, shall be located within the detector housing. Such

222 access shall require the use of an appropriate tool and depending on the grade as specified in Table 4

223 shall generate a tamper signal or message before access can be gained.

224 It shall not be possible to gain such access without generating a tamper signal or message or causing

225 visible damage.
226 4.5.3 Detection of removal from the mounting surface

227 A tamper signal or message shall be generated if the detector is removed from its mounting surface for

228 each claimed mounting type (e.g. wall, ceiling, corner, brackets) in accordance with Table 4.

229 The tamper detection mechanism shall not be defeated by the use of small tools as per the examples

230 in Annex F.
231 4.5.4 Resistance to, or detection of, re-orientation

232 Detectors mounted on adjustable mountings, shall resist or detect reorientation.

233 After the torque given in Table 4 has been applied and then removed from the detector it shall not have

234 rotated more than 5° from its original position. Alternatively, when the torque given in Table 4 has been

235 applied, a tamper signal or message shall be generated if the detector rotates by more than 5°.

236 4.5.5 Immunity to magnetic field interference

237 It shall not be possible to inhibit any signal or message with a magnet of grade dependence according

238 to Table 4. The magnet types shall be as described in Annex A.
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239 4.5.6 Detection of masking

240 Means shall be provided to detect inhibition of the operation of the detector by masking according to the

241 requirements of Table 4.

242 The maximum response time for the masking detection device shall be 180 s. Masking shall be signalled

243 according to the requirements of Table 2. The signals or messages shall remain for at least as long as

244 the masking condition is present. A masking signal or message shall not be reset while the masking

245 condition is still present. Alternatively, the masking signal or message shall be generated again within

246 180 s of being reset if the masking condition is still present.

247 NOTE From a system design point of view it would be preferable for masked detectors to automatically reset

248 after the masking condition is removed.

249 No masking signal or message shall be generated by normal human movement according to Figure C.5.

250 For detectors where detection of masking may be remotely disabled the detection of masking shall

251 operate when the I&HAS is unset; it is not required to operate when the I&HAS is set.

252 4.6 Electrical requirements
253 4.6.1 General

254 The grade-dependencies appear in Table 5. These requirements do not apply to detectors having

255 internal Type C power supplies. For these detectors, refer to EN 50131-6.
256 Table 5 — Electrical requirements
Test Grade 1 Grade 2 Grade 3 Grade 4
Detector current consumption Required Required Required Required
Input voltage range Required Required Required Required
Slow input voltage rise Not required Required Required Required
Input voltage ripple Not required Required Required Required
Input voltage step change Not required Required Required Required
257 4.6.2 Detector current consumption

258 The detector's quiescent and maximum current consumption shall not exceed the figures claimed by the

259 manufacturer at the nominal input voltage.
260 4.6.3 Slow input voltage change and voltage range limits

261 The detector shall meet all functional requirements when the input voltage lies between ± 25 % of the

262 nominal value, or between the manufacturer’s stated values if greater. When the supply voltage is

263 lowered slowly, the detector shall function normally at the specified range limits.

264 The detector shall generate a fault signal or message according to Table 1 and 2, prior to the situation

265 where the detector is unable to function correctly due to low supply voltage.

266 4.6.4 Input voltage ripple

267 The detector shall meet all functional requirements during the modulation of the input voltage by a peak

268 to peak voltage of 10 % of the nominal value, at a frequency of 100 Hz.
269 4.6.5 Input voltage step change

270 No signals or messages shall be caused by a step in the input voltage between nominal and maximum

271 and between nominal and minimum.
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272 4.7 Environmental classification and conditions
273 4.7.1 Environmental classification

274 The environmental classification is described in EN 50131-1 and shall be specified by the manufacturer.

275 4.7.2 Immunity to environmental conditions

276 Detectors shall meet the requirements of the environmental tests described in Tables 7 and 8. These

277 tests shall be performed in accordance with EN 50130-4 and EN 50130-5.

278 Unless specified otherwise for operational tests, the detector shall not generate unintentional intrusion,

279 tamper, fault or other signals or messages when subjected to the specified range of environmental

280 conditions.
281 Impact tests shall not be carried out on delicate detector components suc
...

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