SIST EN 50131-2-4:2020
(Main)Alarm systems - Intrusion and hold-up systems - Part 2-4: Requirements for combined passive infrared and microwave detectors
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 technologies have to be activated in order to generate an alarm condition, providing higher false alarm immunity, it is essential to meet the grade dependent requirements of this document.
For a combined detector which can be configured or operated such that each detection technology can generate an alarm condition independently, it is essential to meet the grade-dependant requirements of EN 50131-2-2 and EN 50131-2-3 when configured accordingly. Otherwise the manufacturer clearly states 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 fulfil 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.
This document does not apply to system interconnections.
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 but du détecteur est 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 les deux technologies doivent être activées en vue de générer une condition d’alarme, ce qui offre une immunité plus élevée aux fausses alarmes, il est essentiel de satisfaire aux exigences dépendantes du grade du présent document.
Pour un détecteur combiné qui peut être configuré pour fonctionner de telle sorte que chaque technologie de détection peut générer une condition d’alarme indépendamment, il est essentiel de satisfaire aux exigences dépendantes du grade de l’EN 50131-2-2 et de l’EN 50131-2-3 lorsqu’il est configuré en conséquence. Le cas contraire, le fabricant indique 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.
Le présent document ne s'applique pas aux interconnexions entre systèmes.
Alarmni sistemi - Sistemi za javljanje vloma in ropa - 2-4. del: Zahteve za kombinirane pasivne infrardeče in mikrovalovne javljalnike
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN 50131-2-4:2020
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
SIST EN 50131-2-4:2020 en,fr
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
---------------------- Page: 1 ----------------------
SIST EN 50131-2-4:2020
---------------------- Page: 2 ----------------------
SIST EN 50131-2-4:2020
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
---------------------- Page: 3 ----------------------
SIST EN 50131-2-4:2020
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
2
---------------------- Page: 4 ----------------------
SIST EN 50131-2-4:2020
EN 50131-2-4:2020 (E)
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
3
---------------------- Page: 5 ----------------------
SIST EN 50131-2-4:2020
EN 50131-2-4:2020 (E)
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 50131-2-4:2020 includes the following significant technical changes with respect to
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
4
---------------------- Page: 6 ----------------------
SIST EN 50131-2-4:2020
EN 50131-2-4:2020 (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
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.
5
---------------------- Page: 7 ----------------------
SIST EN 50131-2-4:2020
EN 50131-2-4:2020 (E)
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.
6
---------------------- Page: 8 ----------------------
SIST EN 50131-2-4:2020
EN 50131-2-4:2020 (E)
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)
7
---------------------- Page: 9 ----------------------
SIST EN 50131-2-4:2020
EN 50131-2-4:2020 (E)
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
8
---------------------- Page: 10 ----------------------
SIST EN 50131-2-4:2020
EN 50131-2-4:2020 (E)
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
9
---------------------- Page: 11 ----------------------
SIST EN 50131-2-4:2020
EN 50131-2-4:2020 (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
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.
10
---------------------- Page: 12 ----------------------
SIST EN 50131-2-4:2020
EN 50131-2-4:2020 (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
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.
11
---------------------- Page: 13 ----------------------
SIST EN 50131-2-4:2020
EN 50131-2-4:2020 (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 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.
12
---------------------- Page: 14 ----------------------
SIST EN 50131-2-4:2020
EN 50131-2-4:2020 (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
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 d
...
SLOVENSKI STANDARD
oSIST prEN 50131-2-4:2019
01-september-2019
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: prEN 50131-2-4:2019
ICS:
13.310 Varstvo pred kriminalom Protection against crime
13.320 Alarmni in opozorilni sistemi Alarm and warning systems
oSIST prEN 50131-2-4:2019 en,fr
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
---------------------- Page: 1 ----------------------
oSIST prEN 50131-2-4:2019
---------------------- Page: 2 ----------------------
oSIST prEN 50131-2-4:2019
EUROPEAN STANDARD DRAFT
prEN 50131-2-4
NORME EUROPÉENNE
EUROPÄISCHE NORM
July 2019
ICS 13.310 Will supersede EN 50131-2-4:2008,
EN 50131-2-4:2008/IS1:2014
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 draft European Standard is submitted to CENELEC members for enquiry.
Deadline for CENELEC: 2019-09-27.
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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, 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
© 2019 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Project: 68372 Ref. No. prEN 50131-2-4:2019 E
---------------------- Page: 3 ----------------------
oSIST prEN 50131-2-4:2019
prEN 50131-2-4:2019 (E)
1 Contents Page
2 European foreword . 4
3 Introduction . 6
4 1 Scope . 7
5 2 Normative references . 7
6 3 Terms, definitions and abbreviations . 8
7 3.1 Terms and definitions . 8
8 3.2 Abbreviations . 9
9 4 Functional requirements . 9
10 4.1 Event Processing . 9
11 4.2 Detection .10
12 4.3 Operational requirements .12
13 4.4 Immunity of the individual technologies to incorrect operation .12
14 4.5 Tamper security .13
15 4.6 Electrical requirements .14
16 4.7 Environmental classification and conditions .15
17 5 Marking, identification and documentation .15
18 5.1 Marking and/or identification .15
19 5.2 Documentation .15
20 6 Testing .16
21 6.1 General .16
22 6.2 General test conditions .16
23 6.3 Basic detection test .17
24 6.4 Walk testing .18
25 6.5 Switch-on delay, time interval between signals and indication of detection .22
26 6.6 Self-tests .23
27 6.7 Immunity of individual technologies to incorrect operation .23
28 6.8 Tamper security .24
29 6.9 Electrical tests .27
30 6.10 Environmental classification and conditions .28
31 6.11 Marking, identification and documentation .29
32 Annex A (normative) Dimensions & requirements of the standardised test magnets .30
33 Annex B (normative) General testing matrix .33
34 Annex C (normative) Walk test diagrams .35
2
---------------------- Page: 4 ----------------------
oSIST prEN 50131-2-4:2019
prEN 50131-2-4:2019 (E)
35 Annex D (normative) Procedure for calculation of the average temperature difference between
36 the standard target and the background .42
37 Annex E (informative) Basic detection target for the basic test of detection capability .43
38 Annex F (informative) Equipment for walk test velocity control .44
39 Annex G (informative) Immunity to visible and near Infrared radiation - Notes on calibration of
40 the light source .45
41 Annex H (informative) Immunity to microwave signal interference by fluorescent lights .46
42 Annex I (informative) Example list of small tools .47
43 Annex J (informative) Test for resistance to re-orientation of adjustable mountings .48
44 Annex K (informative) Delta-T film adjustment Lookup table.50
45 Annex L (normative) Immunity to turbulent warm air flow fan heater setup .51
46 Bibliography .52
47
3
---------------------- Page: 5 ----------------------
oSIST prEN 50131-2-4:2019
prEN 50131-2-4:2019 (E)
48 European foreword
49 This document [prEN 50131-2-4:2019] has been prepared by CLC/TC 79, “Alarm systems”.
50 This document is currently submitted to the Enquiry.
51 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)
52 This document will supersede EN 50131-2-4:2008.
53 prEN 50131-2-4:2019 includes the following significant technical changes with respect to EN 50131-2-
54 4:2008:
55 — editorial changes and refinement of wording;
56 — clarification to significant reduction of range requirements;
57 — clarification to the Electrical requirements section and certain environmental conditions;
58 — addition of requirements, tests and corresponding Annexes throughout the overall standard, to
59 support ceiling mounted detectors;
60 — improvement of the requirements of the supplied documentation;
61 — improvement of the standard conditions for testing;
62 — addition of chapter which defines the condition for the mounting height while the tests are
63 performed;
64 — refinement of the standard requirements for the Testing procedures;
65 — refinement of the Immunity to air flow test to allow for better repeatability of the test results;
66 — verifying and clarifying of the wording of the test for resistance to or detection of re-orientation of
67 adjustable mountings;
68 — updating of the test magnet specification for resistance to magnetic field interference;
69 — verifying and clarifying of the wording for the detection of detector masking in regards to the
70 conditions and the test material;
71 — review and optimization of the methods for temperature adjustments for the test environment;
72 — review of Sample Testmatrix;
73 — review and verifying of references to other standards.
4
---------------------- Page: 6 ----------------------
oSIST prEN 50131-2-4:2019
prEN 50131-2-4:2019 (E)
74 EN 50131 will consist of the following parts, under the general title Alarm systems - Intrusion and hold-
75 up systems:
76 — Part 1: System requirements
77 — Part 2–2: Intrusion detectors – Passive infrared detectors
78 — Part 2–3: Intrusion detectors – Microwave detectors
79 — Part 2–4: Intrusion detectors – Combined passive infrared / Microwave detectors
80 — Part 2–5: Intrusion detectors – Combined passive infrared / Ultrasonic detectors
81 — Part 2–6: Intrusion detectors – Opening contacts
82 — Part 2–7–1: Intrusion detectors – Glass break detectors – Acoustic
83 — Part 2–7–2: Intrusion detectors – Glass break detectors – Passive
84 — Part 2–7–3: Intrusion detectors – Glass break detectors – Active
85 — Part 3: Control and indicating equipment
86 — Part 4: Warning devices
87 — Part 5–3: Requirements for interconnections equipment using radio frequency techniques
88 — Part 6: Power supplies
89 — Part 7: Application guidelines
90 — Part 8: Security fog devices
5
---------------------- Page: 7 ----------------------
oSIST prEN 50131-2-4:2019
prEN 50131-2-4:2019 (E)
91 Introduction
92 This document deals with combined passive infrared and microwave detectors (to be referred to as
93 the detector) used as part of intrusion alarm systems installed in buildings. It includes four security
94 grades and four environmental classes.
95 The purpose of the detector is to detect the broad spectrum infrared radiation emitted by an intruder,
96 to emit microwave signals and analyse the signals that are returned and to provide the necessary
97 range of signals or messages to be used by the rest of the intrusion alarm system.
98 The number and scope of these signals or messages will be more comprehensive for systems that are
99 specified at the higher grades.
100 This version of the standard contains limited requirements for grade 4 detectors. Future revisions of
101 the standard are expected to include enhanced requirements for grade 4 detectors.
102 This document is only concerned with the requirements and tests for the detector. Other types of
103 detector are covered by other documents identified as in the EN 50131-2 series.
104 NOTE Each country has certain regulations in regards to which part of the microwave spectrum is allowed to
105 be used in this application. This information can be found in ERC recommendation 70-03.
6
---------------------- Page: 8 ----------------------
oSIST prEN 50131-2-4:2019
prEN 50131-2-4:2019 (E)
106 1 Scope
107 This document is for combined passive infrared and microwave detectors installed in buildings and
108 provides for security Grades 1 to 4 (see EN 50131-1), specific or non-specific wired or wire-free
109 detectors, and uses environmental classes I to IV (see EN 50130-5). This document does not include
110 requirements for detectors intended for use outdoors.
111 The purpose of the detector is to detect the broad spectrum infrared radiation emitted by an intruder,
112 to emit microwave signals and analyse the signals that are returned and to provide the necessary
113 range of signals or messages to be used by the rest of the intrusion alarm system.
114 For a combined detector where both technologies have to be activated in order to generate an alarm
115 condition, providing higher false alarm immunity, it is essential to meet the grade dependent
116 requirements of this document.
117 For a combined detector which can be configured or operated such that each detection technology
118 can generate an alarm condition independently, it is essential to meet the grade-dependant
119 requirements of EN 50131-2-2 and EN 50131-2-3 when configured accordingly. Otherwise the
120 manufacturer clearly states that the detector does not comply to this document and not to EN 50131-
121 2-2 and EN 50131-2-3 when put into such a configuration.
122 It is essential that a detector fulfil all the requirements of the specified grade.
123 Functions additional to the mandatory functions specified in this document can be included in the
124 detector, providing they do not influence the correct operation of the mandatory functions.
125 This document does not apply to system interconnections.
126 2 Normative references
127 The following documents are referred to in the text in such a way that some or all of their content
128 constitutes requirements of this document. For dated references, only the edition cited applies. For
129 undated references, the latest edition of the referenced document (including any amendments)
130 applies.
131 EN 50130-4, Alarm systems — Part 4: Electromagnetic compatibility — Product family standard:
132 Immunity requirements for components of fire, intruder, hold up, CCTV, access control and social
133 alarm systems
134 EN 50130-5, Alarm systems — Part 5: Environmental test methods
135 EN 50131-1, Alarm systems — Intrusion and hold-up systems — Part 1: System requirements
136 EN 50131-6, Alarm systems — Intrusion and hold-up systems — Part 6: Power supplies
137 EN 60404-5, Magnetic materials — Part 5: Permanent magnet (magnetically hard) materials —
138 Methods of measurement of magnetic properties (IEC 60404-5)
139 EN 60404-8-1, Magnetic materials — Part 8-1: Specifications for individual materials — Magnetically
140 hard materials (IEC 60404-8-1)
141 EN 60404-14, Magnetic materials — Part 14: Methods of measurement of the magnetic dipole
142 moment of a ferromagnetic material specimen by the withdrawal or rotation method (IEC 60404-14)
7
---------------------- Page: 9 ----------------------
oSIST prEN 50131-2-4:2019
prEN 50131-2-4:2019 (E)
143 3 Terms, definitions and abbreviations
144 For the purposes of this document, the terms, definitions and abbreviations given in EN 50131-1 and
145 the following apply.
146 ISO and IEC maintain terminological databases for use in standardization at the following addresses:
147 • IEC Electropedia: available at http://www.electropedia.org/
148 • ISO Online browsing platform: available at https://www.iso.org/obp
149 3.1 Terms and definitions
150 3.1.1
151 activated state
152 condition where a detection technology participates in the generation of an alarm signal or message
153 3.1.2
154 basic detection target
155 heat source and/or microwave reflector designed to verify the operation of a detector
156 3.1.3
157 coverage angle
158 width of field of view in degrees provided by the detector when measured in the horizontal plane
159 3.1.4
160 combined passive infrared and microwave detector
161 detector of the broad-spectrum infrared emitted by a human being, with an active microwave emitter
162 and detector installed in the same casing
163 3.1.5
164 detection settings
165 adjustments which influence the performance of the detector (e.g. pulse count settings, gain settings)
166 3.1.6
167 detector reference axis
168 virtual line determined by the detector manufacturer projecting from the point of origin of the detection
169 coverage pattern.
170 3.1.7
171 incorrect operation
172 physical condition that causes an inappropriate signal from a detector in the context of this standard
173 3.1.8
174 masking
175 interference with the detector input capability by the introduction of a physical barrier such as metal,
176 plastic, paper or sprayed paints or lacquers in close proximity to the detector
177 3.1.9
178 microwave detector
179 detector having an active microwave emitter and receiver installed in the same casing
180 3.1.10
181 passive infrared detector
182 detector of broad-spectrum infrared radiation
183 3.1.11
184 simulated walk test target
185 non-human or synthetic heat source or microwave reflector designed to simulate the standard walk
186 test target
8
---------------------- Page: 10 ----------------------
oSIST prEN 50131-2-4:2019
prEN 50131-2-4:2019 (E)
187 3.1.12
188 standard walk test target
189 human being of standard weight and height clothed in close fitting clothing appropriate to the
190 simulation of an intruder
191 3.1.13
192 walk test
193 operational test during which a detector is stimulated by the standard walk test target in a controlled
194 environment
195 3.1.14
196 walk test attitude, crawling
197 orientation of the standard walk test target moving with hands and knees in contact with the floor
198 3.1.15
199 walk test attitude, upright
200 orientation of the standard walk test target standing and walking with arms held at the sides of the
201 body
202 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
203 4 Functional requirements
204 4.1 Event Processing
205 Detectors shall process the events shown in Table 1.
206 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
207 Detectors shall generate signals or messages as shown in Table 2.
9
---------------------- Page: 11 ----------------------
oSIST prEN 50131-2-4:2019
prEN 50131-2-4:2019 (E)
208 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
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.
a
An independent signal or message may be provided instead.
b
Alternatively Total loss of Power Supply shall be determined by loss of communication with the detector.
209 4.2 Detection
210 4.2.1 Detection performance
211 Both detection technologies shall be in an activated state, before the alarm condition shall be signalled
212 or messaged.
213 The detector shall generate an intrusion signal or message when the standard or simulated walk-test
214 target moves at velocities and attitudes specified in Table 3. For detection across the boundary the
215 walk-test distance shall be 1,5 m either side of the boundary. For test “Detection within the boundary”
216 the walk-test distance shall be 3,0 m.
10
---------------------- Page: 12 ----------------------
oSIST prEN 50131-2-4:2019
prEN 50131-2-4:2019 (E)
217 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
1,0 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.
218 The detection performance tests required for a detector will depend on the coverage angle claimed.
219 Therefore this standard differentiates between detectors with coverage angles less than or equal to
220 180°, such as those typically used for wall mounted applications, and detectors with coverage angles
221 of 360° detectors intended for ceiling mounting.
222 4.2.2 Indication of detection
223 An indicator shall be provided at the detector to indicate when an intrusion signal or message has
224 been generated. At Grades 1 and 2 this indicator shall be capable of being enabled and disabled
225 either remotely at Access Level 2 and/or locally after removal of a cover which provides tamper
226 detection as described in Tables 1 and 4. At Grades 3 and 4 this indicator shall be capable of being
227 enabled and disabled remotely at Access Level 2.
11
---------------------- Page: 13 ----------------------
oSIST prEN 50131-2-4:2019
prEN 50131-2-4:2019 (E)
228 4.3 Operational requirements
229 4.3.1 Time interval between intrusion signals or messages
230 Detectors using wired interconnections shall be able to provide an intrusion signal or message not
231 more than 15 s after the end of the preceding intrusion signal or message.
232 Detectors using wire free interconnections shall be able to provide an intrusion signal or message after
233 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
234 4.3.2 Switch on delay
235 The detector shall meet all functional requirements within 180 s of the power supply reaching its
236 nominal voltage as specified by the manufacturer.
237 4.3.3 Self-tests
238 4.3.3.1 General
239 Self-tests shall detect failures of a critical function (e.g. unable to detect temperature differences) and
240 signal these situations according to Table 2.
241 4.3.3.2 Local Self-Test
242 The detector shall automatically test itself at least once every 24 h according to the requirements of
243 Tables 1 and 2. If normal operation of the detector is inhibited during a local self-test, the detector
244 inhibition time shall be limited to a maximum of 30 s in any period of 2 h.
245 4.3.3.3 Remote Self-Test
246 A detector shall process remote self-tests and generate signals or messages in accordance with
247 Tables 1 and 2 within 10 s of the remote self-test signal being received, and shall return to normal
248 operation within 30 s of the remote test signal being received.
249 4.4 Immunity of the individual technologies to incorrect operation
250 4.4.1 General
251 The detector shall be considered to have sufficient immunity to incorrect operation if the following
252 requirements have been met. No intrusion signal or message shall be generated during the tests.
253 4.4.2 Immunity to turbulent warm air flow
254 The PIR component of the detector shall not initiate the generation of any signals or messages when
255 turbulent warm air is blown over the face of the detector.
256 4.4.3 Immunity to visible & near infrared radiation
257 The PIR component of the detector shall not initiate the generation of any signals or messages when a
258 beam of visible light is swept across the front window or lens through two panes of glass.
259 4.4.4 Immunity to microwave signal interference by fluorescent lights
260 The microwave component of the detector shall not initiate the generation of any signals or messages
261 due to the operation of a fluorescent light source mounted nearby.
12
---------------------- Page: 14 ----------------------
oSIST prEN 50131-2-4:2019
prEN 50131-2-4:2019 (E)
262 4.5 Tamper security
263 4.5.1 General
264 Tamper security requirements for each grade of detector are shown in Table 4.
265 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-
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
266 4.5.2 Resistance to and detection of unauthorised access to components and means of
267 adjustment
268 All comp
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.