EN 50131-2-4:2020

Alarm systems - Intrusion and hold-up systems - Part 2-4: Requirements for combined passive infrared and microwave detectors

This document is for combined passive infrared and 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 detect the broad spectrum infrared radiation emitted by an intruder, to emit microwave signals and analyse the signals that are returned and to provide the necessary range of signals or messages to be used by the rest of the intrusion alarm system. For a combined detector where both detection technologies need to be in their activated state in order to generate an alarm condition, the grade-dependent requirements of this document apply. For combined detectors which can be configured or operated such that each detection technology can generate an alarm condition independently, the grade-dependant requirements as defined in EN 50131 2 2 and EN 50131-2-3 apply, when configured accordingly. Otherwise, it is the responsibility of the manufacturer to clearly state that the detector does not comply to this document and not to EN 50131-2-2 and EN 50131 2-3 when put into such a configuration. 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 2-4: Anforderungen an Passiv-Infrarotdualmelder und Mikrowellenmelder

Systèmes d'alarme - Systèmes d'alarme contre l'intrusion et les hold-up - Partie 2-4: Exigences pour détecteurs combinés à infrarouges passifs et à hyperfréquences

Le présent document concerne les détecteurs à infrarouges passifs installés dans les immeubles et est prévu pour les grades de sécurité 1 à 4 (voir l’EN 50131-1), les détecteurs filaires ou non filaires spécifiques ou non spécifiques, et l'utilisation des classes d'environnement I à IV (voir l’EN 50130-5). Le présent document ne comprend pas d’exigences pour les détecteurs destinés à une utilisation extérieure. Le détecteur a pour objet de détecter les rayonnements infrarouges émis par un intrus dans un spectre étendu, d’émettre des signaux en hyperfréquences et d’analyser les signaux renvoyés, ainsi que de fournir l’ensemble des signaux ou messages nécessaires à utiliser par le reste du système d’alarme intrusion. Pour un détecteur combiné où il est nécessaire que les deux technologies de détection se trouvent dans leur état activé en vue de générer une condition d’alarme, les exigences dépendantes du grade du présent document s’appliquent. Pour les détecteurs combinés qui peuvent être configurés pour fonctionner de telle sorte que chaque technologie de détection peut générer une condition d’alarme indépendamment, les exigences dépendantes du grade telles que définies dans l’EN 50131 2 2 et l’EN 50131-2-3 s’appliquent lorsqu’ils sont configurés en conséquence. Le cas contraire, il est de la responsabilité du fabricant d’indiquer clairement que le détecteur n’est conforme ni au présent document, ni à l’EN 50131-2-2 et à l’EN 50131 2-3 lorsqu’il est mis dans une telle configuration. Il est essentiel qu'un détecteur satisfasse à toutes les exigences du grade spécifié. Des fonctions complémentaires aux fonctions obligatoires spécifiées dans le présent document peuvent être incluses dans le détecteur, sous réserve qu'elles n'influencent pas le bon fonctionnement des fonctions obligatoires. Les exigences relatives aux interconnexions des systèmes ne sont pas incluses dans le présent document.

Alarmni sistemi - Sistemi za javljanje vloma in ropa - 2-4. del: Zahteve za kombinirane pasivne infrardeče in mikrovalovne javljalnike

General Information

• Status: Published
• Publication Date: 06-Aug-2020
• ICS: 13.310 - Protection against crime
• Technical Committee: CLC/TC 79 - Alarm systems
• Drafting Committee: CLC/TC 79 - Alarm systems
• Current Stage: 6060 - Document made available - Publishing
• Start Date: 07-Aug-2020
• Due Date: 05-Apr-2021
• Completion Date: 07-Aug-2020
• Ref Project: SIST EN 50131-2-4:2020 - Alarm systems - Intrusion and hold-up systems - Part 2-4: Requirements for combined passive infrared and microwave detectors

Relations

• Replaces: EN 50131-2-4:2008 - Alarm systems - Intrusion and hold-up systems - Part 2-4: Requirements for combined passive infrared and microwave detectors
• Effective Date: 23-Jan-2023
• Replaces: EN 50131-2-4:2008/IS1:2014 - Alarm systems - Intrusion and hold-up systems - Part 2-4: Requirements for combined passive infrared and microwave detectors
• Effective Date: 11-Aug-2020

Overview

EN 50131-2-4:2020 (CLC/CENELEC) is the European standard that specifies requirements and tests for combined passive infrared (PIR) and microwave detectors used in indoor intrusion and hold‑up alarm systems. It covers detectors for security grades 1 to 4 (see EN 50131-1) and environmental classes I to IV (see EN 50130-5). The standard defines functional, electrical, mechanical and environmental requirements, plus test methods (basic detection, walk tests, immunity, tamper, marking and documentation). It applies only to indoor devices and includes specific guidance for ceiling‑mounted installations.

Key topics and technical requirements

• Detection technologies: Defines the intended operation of combined PIR and microwave sensors and how they interact (either both activated to trigger an alarm, or configurable to operate independently).
• Security grades & environmental classes: Requirements mapped to Grades 1–4 and environmental classes I–IV to match system risk and installation environment.
• Functional requirements: Event processing, detection settings, operational requirements, self‑tests and immunity to incorrect operation (e.g., masking, air flow, light and electromagnetic interference).
• Testing procedures: Standardised tests including basic detection tests, walk tests (with diagrams and simulated targets), immunity tests, tamper/magnetic resistance tests and electrical tests. Annexes provide test matrices, magnet specifications, walk‑test diagrams and temperature adjustment procedures.
• Installation & documentation: Required marking, identification and user/installation documentation to ensure correct mounting, configuration and compliance verification.
• Manufacturer responsibilities: If a detector can be configured so each technology triggers independently, the relevant grade requirements from EN 50131‑2‑2 (PIR) and EN 50131‑2‑3 (microwave) apply when so configured; otherwise manufacturers must clearly state non‑compliance with those parts.

Practical applications - who uses this standard

• Security product manufacturers designing combined PIR/microwave detectors for commercial and residential buildings.
• System designers, integrators and installers specifying detectors for intrusion alarm systems to achieve a required security grade.
• Test laboratories performing type‑approval and certification testing against EN 50131 series requirements.
• Specifiers and facility managers assessing detector suitability for specific indoor environments (including ceiling‑mounted installations).

Related standards

• EN 50131-1 - System requirements (security grades)
• EN 50131-2-2 - Passive infrared detectors
• EN 50131-2-3 - Microwave detectors
• EN 50130-5 - Environmental test methods
• EN 50130-4 - EMC immunity requirements
• EN 50131-6 - Power supplies

EN 50131-2-4:2020 is essential for compliant design, testing and deployment of indoor combined detector solutions within the EN 50131 alarm system framework.

Standards Content (Sample)

SLOVENSKI STANDARD
01-oktober-2020
Nadomešča:
SIST EN 50131-2-4:2008
SIST EN 50131-2-4:2008/IS1:2014
Alarmni sistemi - Sistemi za javljanje vloma in ropa - 2-4. del: Zahteve za
kombinirane pasivne infrardeče in mikrovalovne javljalnike
Alarm systems - Intrusion and hold-up systems - Part 2-4: Requirements for combined
passive infrared and microwave detectors
Alarmanlagen - Einbruch- und Überfallmeldeanlagen - Teil 2-4: Anforderungen an
Passiv-Infrarotdualmelder und Mikrowellenmelder
Systèmes d'alarme - Systèmes d'alarme contre l'intrusion et les hold-up - Partie 2-4:
Exigences pour détecteurs combinés à infrarouges passifs et à hyperfréquences
Ta slovenski standard je istoveten z: EN 50131-2-4:2020
ICS:
13.310 Varstvo pred kriminalom Protection against crime
13.320 Alarmni in opozorilni sistemi Alarm and warning systems
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN 50131-2-4

NORME EUROPÉENNE
EUROPÄISCHE NORM
August 2020
ICS 13.310 Supersedes EN 50131-2-4:2008, EN 50131-2-
4:2008/IS1:2014 and all of its amendments and corrigenda
(if any)
English Version
Alarm systems - Intrusion and hold-up systems - Part 2-4:
Requirements for combined passive infrared and microwave
detectors
Systèmes d'alarme - Systèmes d'alarme contre l'intrusion et Alarmanlagen - Einbruch- und Überfallmeldeanlagen - Teil
les hold-up - Partie 2-4: Exigences pour détecteurs 2-4: Anforderungen an Passiv-Infrarotdualmelder und
combinés à infrarouges passifs et à hyperfréquences Mikrowellenmelder
This European Standard was approved by CENELEC on 2020-06-30. 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
© 2020 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN 50131-2-4:2020 E
Contents Page
European foreword . 4
Introduction . 6
1 Scope . 7
2 Normative references . 7
3 Terms, definitions and abbreviations . 8
3.1 Terms and definitions . 8
3.2  Abbreviations . 9
4 Functional requirements . 9
4.1 Event Processing . 9
4.2 Detection .10
4.3 Operational requirements .12
4.4 Immunity of the individual technologies to incorrect operation .12
4.5 Tamper security .13
4.6 Electrical requirements .14
4.7 Environmental classification and conditions .14
5 Marking, identification and documentation .15
5.1 Marking and/or identification .15
5.2 Documentation .15
6 Testing .15
6.1 General .15
6.2 General test conditions .16
6.3 Basic detection test .17
6.4 Walk testing .18
6.5 Switch-on delay, time interval between signals and indication of detection .22
6.6 Self-tests .23
6.7 Immunity of individual technologies to incorrect operation .24
6.8 Tamper security .25
6.9 Electrical tests .28
6.10 Environmental classification and conditions .29
6.11 Marking, identification and documentation .30
Annex A (normative) Dimensions & requirements of the standardised test magnets .31
Annex B (normative) General testing matrix .34
Annex C (normative) Walk test diagrams .36
Annex D (normative) Procedure for calculation of the average temperature difference between
the standard target and the background .44
Annex E (informative) Basic detection target for the basic test of detection capability .45
Annex F (informative) Equipment for walk test velocity control .46
Annex G (informative) Immunity to visible and near Infrared radiation - Notes on calibration of
the light source .47
Annex H (informative) Immunity to microwave signal interference by fluorescent lights .48
Annex I (informative) Example list of small tools .49
Annex J (informative) Test for resistance to re-orientation of adjustable mountings .50
Annex K (informative) Delta-T film adjustment Lookup table.52
Annex L (informative) Immunity to turbulent warm air flow fan heater setup .53
Bibliography .54

European foreword
This document (EN 50131-2-4:2020) has been prepared by CLC/TC 79, “Alarm systems”.
The following dates are fixed:
• latest date by which this document has to be (dop) 2021-06-30
implemented at national level by publication of
an identical national standard or by
endorsement
• latest date by which the national standards (dow) 2023-06-30
conflicting with this document have to be
withdrawn
This document supersedes EN 50131-2-4:2008 and all of its amendments and corrigenda (if any).
EN 50131-2-4:2008:
— 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 consists of the following parts, under the general title Alarm systems - Intrusion and hold-up
systems:
— Part 1: System requirements
— 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
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC shall not be held responsible for identifying any or all such patent rights.
Introduction
This document deals with combined passive infrared and 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 detect the broad spectrum infrared radiation emitted by an intruder, to
emit microwave signals and analyse the signals that are returned 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.
1 Scope
This document is for combined passive infrared and 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 detect the broad spectrum infrared radiation emitted by an intruder, to
emit microwave signals and analyse the signals that are returned and to provide the necessary range
of signals or messages to be used by the rest of the intrusion alarm system.
For a combined detector where both detection technologies need to be in their activated state in order
to generate an alarm condition, the grade-dependent requirements of this document apply. For
combined detectors which can be configured or operated such that each detection technology can
generate an alarm condition independently, the grade-dependant requirements as defined in
EN 50131-2-2 and EN 50131-2-3 apply, when configured accordingly. Otherwise, it is the responsibility
of the manufacturer to clearly state that the detector does not comply to this document and not to
EN 50131-2-2 and EN 50131-2-3 when put into such a configuration.
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 50131-6, Alarm systems — Intrusion and hold-up systems — Part 6: Power supplies
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)
3 Terms, definitions and abbreviations
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 http://www.electropedia.org/
• ISO Online browsing platform: available at https://www.iso.org/obp
3.1 Terms and definitions
3.1.1
activated state
condition where a detection technology participates in the generation of an alarm signal or message
3.1.2
basic detection target
heat source and/or microwave reflector designed to verify the operation of a detector
3.1.3
coverage angle
width of field of view in degrees provided by the detector when measured in the horizontal plane
3.1.4
combined passive infrared and microwave detector
device used to determine the presence of human intruders by sensing the broad-spectrum infrared
emitted by a human being and differences between emitted and reflected microwave signals due to the
associated movement
Note 1 to entry: The infrared and microwave detection technology are housed within the same enclosure.
3.1.5
detection settings
adjustments which influence the performance of the detector (e.g. pulse count settings, gain settings)
3.1.6
detector reference axis
virtual line determined by the detector manufacturer projecting from the point of origin of the detection
coverage pattern
3.1.7
incorrect operation
physical condition that causes an inappropriate signal from a detector in the context of this document
3.1.8
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
3.1.9
microwave detector
device used to determine the presence of human intruders by sensing the differences between emitted
and reflected microwave signals due to movement
3.1.10
passive infrared detector
device used to determine the presence of human intruders by sensing the broad-spectrum infrared
emitted by a human being
3.1.11
simulated walk test target
non-human or synthetic heat source or microwave reflector designed to simulate the standard walk test
target
3.1.12
standard walk test target
human being of defined weight and height clothed in close fitting garments
3.1.13
walk test
operational test to demonstrate detection performance during which a detector is stimulated by the
standard walk test target in a controlled environment
3.1.14
walk test attitude, crawling
orientation of the standard walk test target moving with hands and knees in contact with the floor
3.1.15
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
HDPE High Density PolyEthylene
PIR Passive InfraRed
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
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
a
Masking M Op M
Low Supply Voltage Op Op M
b
Total Loss of Power Supply M Op Op
a
Local Self-Test Pass NP NP NP
Local Self-Test Fail NP NP M
a
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.
a
An independent signal or message may be provided instead.
b
Total loss of Power Supply does not apply for message based detectors.
4.2 Detection
4.2.1 Detection performance
Both detection technologies shall be in an activated state, before the alarm condition shall be generated.
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.
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
a
performance
-1 -1
Velocity N/A N/A 1,0 ms 1,0 ms
Attitude N/A N/A Upright Upright
a
For grade 3 and 4 detectors, the intermittent movement shall consist of the SWT walking 1 m at a velocity of 1,0
-1
ms 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.
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 temperature differences) and
signal these situations according to Table 2. As a minimum the self-tests shall detect failures of the
output of each 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 of the individual technologies 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 turbulent warm air flow
The PIR component of the detector shall not initiate the generation of any signals or messages when
turbulent warm air is blown over the face of the detector.
4.4.3 Immunity to visible & near infrared radiation
The PIR component of the detector shall not initiate the generation of any signals or messages when a
beam of visible light is swept across the front window or lens through two panes of glass.
4.4.4 Immunity to microwave signal interference by fluorescent lights
The microwave component of the detector shall not initiate the generation of any signals or messages
due to the operation of a fluorescent light source mounted nearby.
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
Not required Required Required Required
wirefree 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
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 I.
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.
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.
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 warning to the user not to obscure partially or completely the detector’s field of view;
j) the manufacturer’s quoted nominal operating voltage, and the maximum and quiescent current
consumption at that voltage;
6 Testing
6.1 General
The tests are intended to be primarily concerned with verifying the correct operation of the detector to
the specification provided by the manufacturer. All the test parameters specified shall carry a general
tolerance of ± 10 % unless otherwise stated. A list of tests appears as a general test matrix in Annex B,
Table B.1.
6.2 General test conditions
6.2.1 Standard conditions for testing
The general atmospheric conditions in the measurement and tests laboratory shall be, unless stated
otherwise:
Temperature 15 °C to 35 °C
Relative humidity 25 % RH to 75 % RH
Air pressure 86 kPa to 106 kPa
All values are “inclusive values”.
6.2.2 General detection testing environment and procedures
Manufacturer’s documented instructions regarding mounting and operation shall be read and applied to
all tests.
6.2.3 Testing environment
The detection tests require an enclosed, unobstructed and draught-free area that enables testing of the
manufacturer’s claimed coverage pattern. The test area shall be large enough so as not to significantly
affect the microwave coverage pattern due to reflections.
The test area walls and floor shall have a recommended emissivity of at least 80 % between 8 µm and
14 µm wavelength, at least directly behind the SWT.
The temperature of the background surface immediately behind the SWT shall be in the range 15 °C to
25 °C, and shall be horizontally uniform over that area to ± 2 °C. Over the whole background area it
shall be measured at ten points spread evenly throughout the coverage pattern. The average
background temperature is the linear average of the ten points.
Annex C provides example diagrams for the range of walk tests for one format of detection pattern and
similarly a 360° detection pattern. Many others are possible.
6.2.4 Mounting height
If the manufacturer claims different detection patterns for different mounting heights, each pattern shall
be tested at the specified height.
If the manufacturer claims one pattern for a range of mounting heights, the full pattern shall be tested at
the claimed nominal height. If no nominal is specified, the full pattern shall be tested at the midpoint of
the height range. For detectors with coverage angles less than or equal to 180° at the maximum
mounting height all test points closer than 4,0 m from the detector shall be tested and all test points at
maximum claimed range shall be tested. For detectors with a coverage angle of 360° all test points at
maximum claimed range shall be tested. At the minimum mounting height all test points at maximum
claimed range shall be tested.
The mounting heights apply to walk tests only and not for any other tests, e.g. EMC and environmental.
6.2.5 Standard walk test target
6.2.5.1 General
The SWT shall have the physical dimensions of 1,60 m to 1,85 m in height, shall weigh 70 kg ± 10 kg
and shall wear close-fitting clothing having a recommended emissivity of at least 80 % between 8 µm
and 14 µm wavelength. No metallic objects shall be worn or carried by the SWT or incorrect microwave
reflection will result.
6.2.5.2 Standard walk test target temperature
Temperatures shall be measured at the following five points on the surfaces of the SWT that are facing
the detector at the time of the walk test for a given test point:
1. Head
2. Chest
3. Back of hand
4. Knee
5. Feet
Temperatures shall be measured using a non-contact thermometer or equivalent equipment.
The temperature differential at each body point is measured, then weighted and averaged as detailed
in Annex D, D.1.
There shall be a means of calibration and control of the desired velocity at which the SWT is required
to move.
The use of a simulator/robot in place of the SWT is permitted, provided that it meets the specification of
the SWT with regard to temperature and microwave reflectivity. It is known as the simulated target. In
case of conflict, a human walk test shall be the primary reference.
6.2.5.3 Standard walk test target temperature differential
The walk tests shall be performed either with an average temperature differential Dtr (as calculated in
Annex D, D.1) of 3,5 °C ± 20 %, or if the temperature differential is larger than 3,5 °C + 20 % (4,2 °C),
it may be adjusted by one of the means specified in Annex D, D.2.
6.2.6 Testing procedures
The detector shall be connected to the nominal supply voltage, and connected to equipment with a
means of monitoring intrusion signals or messages. The detector shall be allowed to stabilise for 180 s.
Any non-compliant detection settings shall be identified by the manufacturer and not subject to testing.
All tests will be performed at the most sensitive setting (e.g. minimum pulse count) unless otherwise
stated.
6.3 Basic detection test
6.3.1 General
The purpose of the basic detection test is to verify that a detector is still operational after a test or tests
has/have been carried out. The basic detection test verifies only the qualitative performance of a
detector. The basic detection test is performed using the BDT(s).
The manufacturer shall provide, for testing purposes only, methods for placing either technology
permanently in an activated state where the other technology may cause an intrusion signal or message.
6.3.2 Basic detection targets (BDT)
The BDT is a human hand, alternatively the BDT consists of a heat source with heat emission equivalent
to that of a human hand, which can be moved across the field of view of the detector. An informative
description is given in Annex E. The temperature of the source shall be between 3,5 °C and 10,0 °C
above the background.
A short range walk test may be carried out as an alternative to using the BDT.
6.3.3 Basic Detection Test procedure
A stimulus that is similar to that produced by the SWT using the BDT is applied to the detector. Move
the BDT perpendicularly across the centre line of the detection field at a distance of not more than 1 m,
and at a height where the manufacturer claims detection will occur.
-1 -1
Move the BDT along a distance of 1 m at a velocity of 0,5 ms to 1,0 ms . The detector shall produce
an intrusion signal or message when exposed to an alarm stimulus both before and after being subjected
to any test that may adversely affect its performance.
Pass/Fail Criteria: The detector shall generate an intrusion signal or message and shall not generate
tamper or fault signals or messages.
6.4 Walk testing
6.4.1 General walk test method
Walk testing is accomplished by the controlled movement of a SWT across the field of view of the
detector. The grade dependent velocities and attitudes to be used by the SWT are specified in Table 3.
The tolerance of these velocities shall be better than ± 10 %. The SWT begins and ends a walk with feet
together. Annex F is an informative description of two systems that may be used to control and monitor
the desired velocity.
The detector shall be mounted at a height according to 6.2.4. The orientation shall be as specified by
the manufacturer with unobstructed view of the walk test to be performed.
When the detector is walk tested, it shall be set to the least sensitive setting required to achieve the
claimed compliant detection coverage (e.g. maximum pulse count).
Before commencing and after completing each walk test, the SWT shall stand still for at least 20 s.
The walk test attitude, crawling, is a crawling attitude which shall consist of the standard walk test target
moving with hands and knees in contact with the floor.
The walk test attitude, upright, is an upright attitude which shall consist of the standard walk test target
standing and walking with arms held at the sides of the body.
6.4.2 Verification of detection performance
The general test conditions of 6.2 shall apply to all tests in this series.
Detection performance shall be tested against the manufacturer’s documented claims. The
manufacturer shall provide the test laboratory with scaled drawings of the claimed detection boundary
superimposed on a 2,0 m grid, see Annex C, Figure C.6. The manufacturer shall declare the detector
reference axis.
Care should be taken when defining the claimed detection boundary as inaccuracy in the boundary may
result in test failure.
Example walk test diagrams are shown in Annex C.
It is recommended that the test laboratory mark on the scaled drawings, the locations of the test points
as determined by the following procedures for reference du
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