CLC/TS 50131-2-2:2004

SLOVENSKI STANDARD
01-februar-2005
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Alarm systems - Intrusion systems -- Part 2-2: Requirements for passive infrared
detectors
Alarmanlagen - Einbruchmeldeanlagen -- Teil 2-2: Anforderungen an Passiv-
Infrarotmelder
Systèmes d'alarme - Systèmes d'alarme intrusion -- Partie 2-2: Exigences pour
détecteurs infrarouges passifs
Ta slovenski standard je istoveten z: CLC/TS 50131-2-2:2004
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.

TECHNICAL SPECIFICATION CLC/TS 50131-2-2
SPECIFICATION TECHNIQUE
TECHNISCHE SPEZIFIKATION August 2004

ICS 13.310
English version
Alarm systems - Intrusion systems
Part 2-2: Requirements for passive infrared detectors

Systèmes d'alarme -  Alarmanlagen -
Systèmes de détection d'intrusion Einbruchmeldeanlagen
Partie 2-2: Exigences pour détecteurs Teil 2-2: Anforderungen an Passiv-
infrarouges passifs Infrarotmelder

This Technical Specification was approved by CENELEC on 2004-05-04.

CENELEC members are required to announce the existence of this TS in the same way as for an EN and to
make the TS available promptly at national level in an appropriate form. It is permissible to keep conflicting
national standards in force.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Cyprus, Czech
Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden,
Switzerland and United Kingdom.

CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung

Central Secretariat: rue de Stassart 35, B - 1050 Brussels

© 2004 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.

Ref. No. CLC/TS 50131-2-2:2004 E

Foreword
This Technical Specification was prepared by the Technical Committee CENELEC TC 79, Alarm
systems.
The text of the draft was submitted to the vote at the meeting of TC 79 in Madrid and was
approved by CENELEC as CLC/TS 50131-2-2 on 2004-05-04. Standstill is maintained.
The following date was fixed:
- latest date by which the existence of the TS (doa) 2004-11-04
has to be announced at national level
NOTE  Latest date by which the TS has to be voted as EN: 2 years maximum after dav of TS.

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Contents
Page
1 Scope.4

2 Normative references.4

3 Definitions and abbreviations .4

4 Functional requirements.6
4.1 Indication signals or messages .6
4.2 Detection.7
4.3 Operational requirements .9
4.4 Immunity to incorrect operation.9
4.5 Tamper security.10
4.6 Electrical requirements .11
4.7 Environmental classification and conditions .12

5 Marking, identification and documentation .12
5.1 Marking and/or identification.12
5.2 Documentation .12

6 Testing.13
6.1 General test conditions.13
6.2 Basic detection test .14
6.3 Walk testing .14
6.4 Verification of detection performance .15
6.5 Switch-on delay, time interval between signals and indication of detection.17
6.6 Fault condition signals or messages: self tests.18
6.7 Immunity to incorrect operation.18
6.8 Tamper security.19
6.9 Electrical tests.20
6.10 Environmental classification and conditions .22
6.11 Marking, identification and documentation.23

Annex A (normative) Format of standard test magnets.24
Annex B (normative) General testing matrix.25
Annex C (normative) Walk test diagrams.27
Annex D (normative) Procedure for calculation of average temperature difference .30
Annex E (informative) Basic detection target for the basic test of detection capability .32
Annex F (informative) Calibration heat source .33
Annex G (normative) Calibration of the standard walk test target. .35
Annex H (informative) Equipment for walk test velocity control.35
Annex J (informative) Immunity to visible and near infrared radiation:
notes on calibration of the light source .36
Annex K (informative) Example list of small tools suitable for testing immunity
of casing to attack.37
Annex L (informative) Test for resistance to re-orientation of adjustable mountings.38

Figure A.1 - Format of standard test magnets.24
Figure C.1 - Detection across the boundary, & effect of control adjustments .27
Figure C.2 - Detection within the boundary, & effect of control adjustments.27
Figure C.3 - High velocity and intermittent movement .28
Figure C.4 - Close-in detection .28
Figure C.5 - Significant range reduction.29
Figure L.1 - Re-orientation test.38

Table 1 - Indication signals or messages .7
Table 2 - General walk test velocity and attitude requirements .8
Table 3 - Tamper security requirements .11
Table 4 - Electrical requirements .11
Table 5 - Range of materials for masking tests .20
Table 6 - Environmental tests, operational.23
Table 7 - Environmental tests, endurance.23

Introduction
This Technical Specification is a specification for passive infrared detectors (to be referred to as
the detector) used as part of intrusion detection systems installed in buildings. It includes four
security grades and the first three environmental classes.
The purpose of a detector is to detect the broad spectrum infrared radiation emitted by an intruder
and to provide the necessary range of signals or messages to be used by the rest of the intruder
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 specification is only concerned with the requirements and tests for the detector. Other types
of detector are covered by other documents identified as CLC/TS 50131-2-x.
The requirement in EN 50131-1 that detectors in grade 3 and 4 systems shall include a means to
detect a significant reduction in range may be met either by detectors having the appropriate
function (4.2.3) or by suitable system design.
1 Scope
This Technical Specification 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 III (see EN 50130-5).
A function designated in the specification as not required for a particular grade may be provided
by the manufacturer. If provided, it will be tested, and shall meet all relevant requirements of any
higher grade. If it passes, the manufacturer may claim it as an extra feature, which does not alter
the overall grading of the detector.
The specification does not apply to system interconnections.
2 Normative references
The following referenced documents are indispensable for the application 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 50130-4:1995 Alarm systems - Part 4: Electromagnetic compatibility - Product family
standard: Immunity requirements for components of fire, intruder and
social alarm systems
EN 50130-5:1998 Alarm systems - Part 5: Environmental test methods
EN 50131-1:1997 Alarm Systems - Intrusion systems - Part 1: General requirements
EN 50131-6:1997 Alarm systems - Intrusion systems - Part 6: Power supplies
EN 60529:1991 Degree of protection provided by enclosures (IP code)
3 Definitions and abbreviations
For the purpose of this specification, the following definitions and abbreviations apply in addition
to those given in EN 50131-1.
3.1
alert/set mode
state of operation in which a detector shall generate an intrusion signal or message in response to
stimulation by a human being or the standard walk test target
3.2
basic detection target
heat source designed to verify the operation of a detector

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3.3
ceiling mount detector
detector capable of sensing human movement from a mounting position on the ceiling
3.4
curtain detector
detector capable of sensing human movement through a continuous layer of detection zones
3.5
incorrect operation
physical condition that causes an inappropriate signal or message from a detector
3.6
local memory
storage medium situated on board the detector, having the capability to record signals or
messages generated by the detector
3.7
long range detector
detector capable of sensing human movement in an extended field of view with horizontal angular
coverage less than 10°
3.8
masking
interference with the detector input capability by the introduction of a physical barrier such as
metal, plastics, paper or sprayed paints or lacquers in close proximity to the detector
3.9
passive infrared detector
detector of the broad-spectrum infrared radiation emitted by a human being
3.10
simulated walk test target
non-human or synthetic heat source designed to simulate the standard walk test target
3.11
standard walk test target
human being of standard weight and height clothed in close fitting clothing appropriate to the
simulation of an intruder
3.12
standby/unset mode
state of operation in which a detector is not required to generate an alarm signal or message in
response to stimulation by a human being or a standard walk test target
3.13
test mode
state of operation in which a detector will activate an intrusion indicator in response to stimulation
by a human being or the standard walk test target
3.14
volumetric detector
detector capable of sensing human movement in a volume such as a room with a field of view with
horizontal angular coverage greater than 45°

3.15
walk test
operational test during which a detector is stimulated by the standard walk test target in a
controlled environment
3.16
walk test attitude, crawling
crawling attitude shall consist of the standard walk test target moving with hands and knees in
contact with the floor
3.17
walk test attitude, upright
upright attitude shall consist of the standard walk test target standing and walking with arms by
the sides of the body. The standard walk test target begins and ends a traverse with feet together
3.18
wire free detector
detector connected to the control and indicating equipment by interconnection such as radio
frequency signals
3.19 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 Indication signals or messages
All detectors shall have an alert/set mode. Grades 3 and 4 shall have an unset mode. If a detector
has only one mode of operation, then it shall always be in the alert/set mode. Tamper detection
shall be active in all modes.
Each possible mode of operation is determined by the status of the intrusion detection system with
which the detector communicates. The detector signals or messages in these modes of operation
shall function in accordance with Table 1. All signals or messages apply to all modes of operation
unless stated otherwise. Where a memory display or intrusion indicator is provided on board the
detector, it shall not function in the alert/set mode.

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Table 1 - Indication signals or messages
Event Grades Intrusion signal Tamper signal or Fault signal or
or message message message
Intrusion 1 – 4 Required * Not permitted Not permitted
1 – 4 Not permitted Not permitted Not permitted
No stimulus
Masking 1 – 2 Not required Not required Not required
3 – 4 Required ** Not required Required **
Tamper 1 – 4 Not required Required Not required
Low supply voltage 1 – 2 Not required Not required Not required
(external)
3 – 4 Not required Not required Required
Total loss of 1 Not required Not required Not required
external power
2 – 4 *** Required Not required Not required
supply
Local self-test pass 1 – 4 Not permitted Not permitted Not permitted
Local self-test 1 – 2 Not permitted Not permitted Not required
3 – 4 Not permitted Not permitted Required
fail
Remote self-test 1 – 2 Not required Not permitted Not permitted
pass
3 – 4 Required Not permitted Not permitted
Remote self-test 1 – 2 Not permitted Not permitted Not required
fail
Not permitted Not permitted Required
3 – 4
* Not required in unset/standby mode: required in test mode.
** An independent masking signal or message may be provided instead.
*** Not required for bus systems.

NOTE  For internal power supplies, see EN 50131-6.
4.2 Detection
4.2.1 Detection performance
The detector shall generate an intrusion signal or message when the standard or simulated walk
test target moves within the boundary for a distance of 3 m. The detector shall also generate an
intrusion signal or message when the standard or simulated walk test target moves across the
manufacturer’s claimed boundary of detection.

The velocities and attitudes are as specified in Table 2.
Table 2 - General walk test velocity and attitude requirements
Test Grade 1 Grade 2 Grade 3 Grade 4
Required Required Required Required
Detection across the boundary
Velocity (m/s) 1,0 1,0 1,0 1,0
Attitude
Upright Upright Upright Upright
Required Required Required Required
Detection within the boundary
Velocity (m/s) 0,3 0,3 0,2 0,1
Attitude
Upright Upright Upright Upright
Not required Required Required Required
Detection at high velocity
Velocity (m/s) # 2,0 2,5 3,0
Attitude
# Upright Upright Upright
2,0 2,0 0,5 0,5
Close-in detection performance (dist, m)
Velocity (m/s) 0,5 0,4 0,3 0,2
Attitude
Upright Upright Crawling Crawling
Not required Not required Required Required
Intermittent movement detection
performance *
# # 0,2 (1,0) 0,1 (1,0)
Velocity (m/s)
# # Upright Upright
Attitude
Not required Required Required Required
Effect of control adjustments **
Velocity (m/s) # 0,3 0,2 0,1
Attitude
# Upright Upright Crawling
Not required Not required Not required Not required
Significant reduction of specified range
*** ***
Velocity (m/s)
# # # (1,0) 1,0
Attitude
# # # Upright Upright
* The intermittent movement shall consist of the SWT moving a distance of 1 m by taking two 0,2 (5) m steps (at
1,0 m/s), pausing for 5 s then continuing until the SWT has left the area for a further 1 s.
** If means for continuous adjustment of detection sensitivity is provided, the effect of any setting shall be indicated
with a tolerance of less than 25 % of the maximum reading.
*** The means to detect a significant reduction in range may be met either by detectors having the appropriate
function (4.2.3) or by suitable system design.
# To test features that are not required in a particular grade, parameters from a higher grade shall be specified.
4.2.2 Indication of detection
An indicator, if provided at the detector, shall indicate when detection causes an intrusion signal
or message. This indicator shall be capable of being enabled/disabled. This operation shall only
be performed locally after removal of the cover or remotely at the control and indicating
equipment.
4.2.3 Significant reduction of specified range
If the facility to detect reduction in specified range is provided, then range reduction along the
principal axis of detection of more than 50 % shall generate an alarm or fault signal or message
within a maximum period of 180 s, according to the requirements given in Table 2. The
requirements of 4.3.5 (self test) and 4.5.5 (resistance to masking) can provide range reduction
detection.
If additional equipment is required to detect significant reduction in range, reference shall be
made to the manufacturer’s documentation.

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4.3 Operational requirements
4.3.1 Time interval between intrusion signals or messages
Wired detectors 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. Wire free detectors shall perform the same
function in a time as follows:
Grade 1: 300 s,
Grade 2: 300 s,
Grade 3: 30 s,
Grade 4: 15 s (see EN 50131-1 for amendment).
4.3.2 Switch on delay
The detector shall meet all functional requirements within 180 s of the power supply reaching its
nominal voltage.
4.3.3 Fault condition signalling
When a detector suffers a fault, a fault signal or message shall be generated in accordance with
the manufacturer's specification, and the provisions of Table 1.
4.3.4 Power supply faults
Detectors of all grades shall signal complete power failure according to the provisions of Table 1.
Additionally, detectors of grades 3 and 4 shall signal when the supply voltage moves below the
manufacturer’s specified range according to the provisions of Table 1.
4.3.5 Self tests
Grade 3 and grade 4 detectors shall monitor the function of the sensor and associated on-board
signal processing circuitry. A self-test shall be performed under the control of the detector.
When a remote self-test is initiated, a signal or message shall be generated between 1 s and 5 s
later, and shall be signalled within 5 s of that initiation. The test duration shall not exceed 10 s.
After the test is completed, the detector shall resume its previous state within 5 s. Fault indication
requirements appear in Table 1.
Where normal operation of the detector is inhibited during a local test of function monitoring the
detector inhibition time shall be limited to a maximum of 15 s in a period of 1 h.
4.4 Immunity to incorrect operation
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.
4.4.1 Immunity to air flow
The detector shall not generate any signal or message when air is blown over the face of the
detector.
4.4.2 Immunity to visible and near infrared radiation
The detector shall not generate any signal or message when visible and near Infrared radiation
from a light source such as a car headlamp is directed on to the front window or lens through a
pane of glass.
4.5 Tamper security
Tamper security requirements for each grade of detector are shown in Table 3.
4.5.1 Prevention of unauthorized access to the inside of the detector through covers and
existing holes
Access holes shall not allow interference with the operation of the detector by probing with
commonly available tools. Damage shall not be caused that would be visible to a person with
normal eyesight viewing from a distance of 1 m with the detector illuminated at a level of
2 000 lux.
A tool shall be required to open the unit. All covers giving access to components which could
affect adversely the operation of the detector shall be fitted with a tamper detection device in
accordance with Table 3. A tamper signal or message shall be generated before access is gained
with any tool.
4.5.2 Detection of removal from the mounting surface
A tamper detection device shall be fitted which signals a tamper if the detector is removed from
the mounting surface, in accordance with Table 3. Mounting screws shall only be accessible from
within the unit. Operation of the device shall not be preventable by external means. This device
shall activate before access can be gained to it.
4.5.3 Resistance to re-orientation
Where the orientation of a detector can be adjusted, resistance to re-orientation shall be provided
in accordance with Table 3.
The alignment of the boundary of detection shall not have changed by more than 5° due to a
grade dependent applied torque. Alternatively a tamper detection device shall signal before the
alignment of the boundary of detection has moved by 5°. One test arrangement is described in
Annex L.
If a detector provides a means to adjust the orientation of its coverage pattern, the access to this
means shall be protected by a tamper device.
4.5.4 Immunity to magnetic field interference
It shall not be possible to inhibit any output or signalling devices with a magnet of grade
dependent remanence, according to Table 3. The form of standard magnets shall be as described
in Annex A.
4.5.5 Resistance to masking
Means shall be provided to detect inhibition of the operation of the detector by covering its
sensing area and sensor, in the unset mode. The maximum response time for the masking
detection device shall be 180 s. Intrusion and fault signals or messages or a dedicated anti-
masking signal or message shall be generated. The signals or messages shall remain latched
until restored. Grade dependency appears in Table 3.
No anti-masking signal or message shall be generated by normal human movement at 1 m/s at a
distance greater than 1 m in the unset condition.

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Table 3 - Tamper security requirements
Requirement Grade 1 Grade 2 Grade 3 Grade 4
Resistance to access to the Required Required Required Required
inside of the detector
Not required Required Required
Removal from the mounting Required *
surface*
Not required Required Required Required
Resistance to re-orientation:
2 5 10
Applied torque (Nm)
Magnetic field immunity: Not required Required Required Required
Remanence (T) 0,15 0,3 1,2
Anti-masking: capability Not required Not required Required Required
* Required for wire free detectors only.
4.6 Electrical requirements
These requirements do not apply to detectors having internal power supplies. For these detectors
refer to EN 50131-6. For detectors having an external power supply, the requirements appear in
Table 4.
Table 4 - Electrical requirements
Test Grade 1 Grade 2 Grade 3 Grade 4
Required Required Required Required
Detector current consumption
Input voltage range & Not required Required Required Required
slow input voltage rise
Input voltage ripple Not required Required Required Required
Input voltage step change Not required Required Required Required
Not required Required Required Required
Total loss of supply
4.6.1 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.
4.6.2 Slow input voltage change (rise) 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 (range limits if greater). When the
supply voltage is raised slowly, the detector shall function normally at the specified range limits.
4.6.3 Input voltage ripple
The detector shall meet all functional requirements during the sinusoidal variation of the input
voltage by ± 10 % of nominal, at a frequency of 100 Hz.
4.6.4 Input voltage step change
No signals or messages shall be caused by a step in the input voltage between maximum or
minimum and nominal values of the input voltage.
4.6.5 Total loss of supply
An intrusion signal or message shall be caused by the total loss of the supply voltage.

4.7 Environmental classification and conditions
4.7.1 Environmental classification
The environmental classification is described in EN 50131-1. All the relevant environmental tests
shall be carried out at the appropriate level for all security grades, as given in EN 50130-5.
4.7.2 Immunity to environmental conditions
All detectors shall meet the requirements of the relevant environmental class and equipment class
as specified by the manufacturer.
Impact tests shall not be carried out on delicate detector components such as LEDs, optical
windows or lenses.
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.
For endurance tests, the detector shall continue to meet the requirements of this specification
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 (including any from higher grades), inputs, signals or messages,
indications and their relevant characteristics;
b) the manufacturer's diagram of the detector and its claimed detection boundary showing top
and side elevations superimposed upon a scaled 2 m squared grid. The size of the grid shall
be directly related to the size of the claimed detection boundary;
c) the recommended 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;
e) any disallowed field adjustable control settings or combinations of these;
f) where alignment adjustments are provided, these shall be labelled as to their function;
g) a warning to the user not to obscure partially or completely the detector's field of view with
large objects such as furniture;
h) the manufacturer’s quoted nominal operating voltage, and the maximum and quiescent
current consumption at that voltage;
i) the method of detecting a 50 % reduction in range, where provided.

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6 Testing
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.
6.1 General test conditions
6.1.1 Standard laboratory conditions for testing
The general atmospheric conditions in the measurement and tests laboratory shall be those
specified in EN 60068-1, sublause 5.3.1, unless stated otherwise.
Temperature: 15 °C to 35 °C
Relative humidity: 25 % RH to 75 % RH
Air pressure: 86 kPa to 106 kPa
6.1.2 General detection testing environment and procedures
Manufacturer’s documented instructions regarding mounting and operation shall be read and
applied to all tests.
6.1.2.1 Testing environment
The detection tests require an enclosed, unobstructed and draught-free area at least 25 % larger
in the three dimensions than the manufacturer’s claimed field of view, with the detector mounted
in the as-used position on a wall or ceiling, or on a free-standing test rig.
To standardize the test area walls and floor for IR tests, they shall each be covered with uniform
materials having an infrared emissivity of at least 80 % in the 8 µm to 14 µm wavelength band, at
least directly behind the SWT, and in the FOV of the detector.
Volumetric, curtain, and long-range detectors shall be mounted on the centre line of the vertical
surface constituting the back wall of the test area, or on a free-standing test rig, at a height of
2,0 m unless otherwise specified by the manufacturer. Ceiling mounted detectors shall be
mounted in an appropriate orientation permitting at least half the field of view to be verified.
Annex C provides example diagrams for the range of walk tests for one format of detection
pattern. Many others are possible.
6.1.2.2 Testing procedures
The detector shall be connected to the nominal supply voltage, placed in the alert/set mode, and
connected to the monitoring system that is appropriate to the test. The detector shall be allowed to
stabilize for 180 s. The intrusion signal or message output shall be monitored. If multiple
sensitivity modes such as pulse counting are available, any non-compliant modes shall be
identified by the manufacturer. All compliant modes shall be tested.
The following SWT temperature conditions shall apply during the test and shall be recorded at
intervals sufficient to ensure consistent measurement:
a) 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 during
calibration of the SWT. Over the whole background area it shall be measured at ten points.
b) The averaged temperature difference between the background temperature and the SWT
temperature shall be 3 °C +/- 10 %. If it is greater, attenuation filters shall be placed directly
over the detector lens or window to reduce proportionally the energy received by the detector.
The procedure is described in Annex D.

6.2 Basic detection test
6.2.1 Basic detection target
The purpose of the BDT is to verify that a detector is still operational after a test or tests has/have
been carried out. The BDT verifies only the qualitative performance of a detector. It consists of a
heat source equivalent to the human hand that 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
not less than 3 °C above the background.
A close-in walk test may be carried out as an alternative to using the BDT.
6.2.2 Basic test of detection capability
A stimulus that is similar to that produced by the SWT is applied to the detector, using the BDT.
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.
Move the BDT a distance of 1 m at a velocity of 0,5 m/s to 1,0 m/s. 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.
6.3 Walk testing
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 2.
Walk tests shall not be repeated before a time interval of at least 20 s (or greater if specified by
the manufacturer) has elapsed.
An intrusion signal or message shall be generated during a (each) walk test to register a pass. If
an individual walk test is failed, it shall be repeated twice more. Two passes out of the three tests
shall constitute a passed test.
General pass/fail criteria for all tests
For a complete test series, 95 % or more of the tests shall be passed.
6.3.1 Standard walk test target (SWT)
The SWT shall have the physical dimensions of 160 cm to 185 cm in height, shall weigh
70 kg ± 10 kg and shall wear close-fitting clothing having an emissivity of greater than 80 %
between 8 µm to 14 µm wavelength band.
The averaged temperature difference between the SWT and the background shall be established.
Temperatures shall be measured at five points on the body of the SWT, on the surface facing
perpendicularly to the axis of the detector, and the background temperature close to each point
measured at the same time.
1. Head.
2. Upper torso side.
3. Hand at body side.
4. Legs at knee.
5. Feet.
Temperatures shall be measured using a non-contact thermometer or equivalent equipment,
which shall be verified against the calibration heat source (6.3.3.1). The test house shall measure
and calibrate at intervals that ensure conformance with the specified limits.

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The temperature differences at each body point are calculated, weighted and averaged. The
informative detail calculation of the SWT temperature difference is given in Annex D.
There shall be a means of calibration and control of the desired velocity at which the SWT is
required to move.
NOTE  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. It is known as the simulated target. In case of conflict, a human walk test shall be the
primary reference.
6.3.2 Standard walk test target calibration
6.3.2.1 A calibration heat source
A heat source that has an absolutely constant temperature close to that of the human body is
described in Annex F.
6.3.2.2 Standard walk test target temperature difference
The equivalent average temperature difference Dt between the background temperature and the
e
SWT temperature shall be 3 °C +/- 10 %.
Since the SWT is variable in the amount of heat emitted in the 8 µm to 14 µm wavelength band, it
may be necessary to adjust the energy received from the SWT to achieve the required equivalent
average temperature difference.
The real average temperature difference Dt shall be greater than 2,7 °C (3,0 °C – 10 %). As is
r
described in Annex D, attenuation filters shall be used to reduce the thermal radiation from the
SWT by a factor Dt /Dt (± 10 %). If Dt is less than 3,3 °C, no filter will be required.
e r r
6.3.2.3 Control of the standard walk test target velocity
This equipment provides a means whereby the SWT can move at a desired velocity. The system
produces an apparent movement or audible signal, which may be matched by the SWT. The SWT
begins and ends a traverse with feet together, matching movement with the velocity control
system. The system can employ any desired means provided that the SWT velocity can be
monitored to a tolerance of better than ± 10 %.
The informative description of two such systems appears in Annex H.
6.4 Verification of detection performance
The general test conditions of 6.1.2 shall apply to all tests in this series.
Detection performance shall be tested against the manufacturer’s documented claims. Any
variable controls shall be set to the values recommended by the manufacturer to achieve the
claimed performance
PIR detectors of all types shall be assessed in the specified test environment.
If the dimensions of the detection pattern exceed the available test space, it may be tested in
sections rather than as a whole.
Lay out the test area according to the provisions of the diagrams in Annex C, and the
manufacturer’s performance claims.
Figure C.2 shows an example of the detection boundary. A detector reference line is drawn
through the detector, at right angles to the detector axis.
The SWT or a suitable simulated target, with its temperature difference with the background
adjusted according to Annex D, shall be used. Grade dependent velocities and attitudes are
specified in Table 2.
6.4.1 Detection within and across the detection boundary
The tests assess detection of intruders moving within and across the boundaries of the detection
area. The diagrams in Annex C show an example of the detection boundary superimposed where
appropriate upon a scaled 2 m squared grid. A variety of boundary formats are possible and can
be tested.
6.4.1.1 Verify detection across the boundary
Figure C.1 shows an example of a manufacturer’s claimed detection boundary.
Select test points on the boundary as detailed in Figure C.1:
Place test points at 2 m intervals around the entire boundary of the detection pattern, starting from
the detector, and finishing with a final test point where the boundary crosses the detector axis, if
omission of this point would leave a gap greater than 2 m wide. Repeat for the opposite side of
the detection pattern.
Each test point is connected to the detector by a radial line. At each test point, two alternative test
directions are available, beginning at a distance of 1,5 m from the test point, and finishing 1,5 m
after it. The SWT shall move at either +45° or - 45° to the radial line.
6.4.1.2 Verify detection within the boundary
Figure C.2 shows an example of a manufacturer’s claimed detection boundary superimposed
upon a scaled 2 m squared grid.
Select test points within the detection boundary, as detailed in Figure C.2:
Starting at the detector, place the first test point at 4 m along the detector axis. Using the 2 m
squared grid, place further test points at every alternate grid intersection, on both sides of the
detector axis. No test point shall be less than 1 m from, or lie outside, the claimed boundary.
Each test point is connected to the detector by a radial line. At each test point, two test directions
are defined, at +45° and -45° to that line. The SWT shall start at a distance of 1,5 m before the
test point, and finish 1,5 m after it.
6.4.2 Detection at high velocity and with intermittent movement
The tests assess detection of intruders moving at high velocity, and moving intermittently across
the protected area.
6.4.2.1 Verify the high-velocity detection performance
Three walk tests are performed, crossing the entire detection area as detailed in Figure C.3.
Two walk tests begin outside the boundary of the area, from opposite sides, and pass through the
detector axis mid-range point at 45°. The third walk test passes at right angles to the detector axis
at a distance of 1 m in front of, and parallel to the detector reference line.
The SWT shall cross all of the specified detection area, coming to rest after clearing the other
detection boundary. At the end of each path, the SWT shall pause for at least 20 s, then return to
the starting point.
6.4.2.2 Verify the intermittent movement detection performance
Two walk tests are performed, crossing the entire detection area as detailed in Figure C.3.
The tests begin outside the boundary of the area, from opposite sides, and pass through the
detector axis mid-range point at 45°.
The intermittent movement starts with the SWT standing with feet together, moving 2 x 0,2 (5) m
steps and stopping with the feet together. After 5 s at rest the cycle is repeated until the SWT has
left the area.
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The SWT shall cross all of the specified detection area, coming to rest after clearing the other
detection boundary. At the end of each path, the SWT shall pause for at least 20 s, then return to
the starting point.
6.4.3 Verify the close-in detection performance
Two walk tests are performed beginning and ending outside the boundary of the detection area as
detailed in Figure C.4. The tests begin outside the detection boundary at a distance (for grades 1
and 2) of 2,0 m ± 0,2 m from, and (for grades 3 and 4) of 0,5 m ± 0,05 m from the detector
reference line or the nearest claimed detection boundary.
The SWT shall cross all of the specified detection area, coming to rest after clearing the other
detection boundary. At the end of each path, the SWT shall pause for at least 20 s, then return to
the starting point.
6.4.4 Verify the effect of control adjustments on detection
Select test points on the manufacturer’s claimed detection boundary, as detailed in Figure C.1 and
6.4.1.1, and within the manufacturer’s claimed detection boundary, as detailed in Figure C.2 and
6.4.1.2. Use only the manufacturer’s claimed values for max
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