CLC/TS 50131-2-5:2004

SLOVENSKI STANDARD
01-junij-2004
Alarm systems - Intrusion systems - Part 2-5: Requirements for combined passive
infrared and ultrasonic detectors
Alarm systems - Intrusion systems -- Part 2-5: Requirements for combined passive
infrared and ultrasonic detectors
Alarmanlagen - Einbruchmeldeanlagen -- Teil 2-5: Anforderungen an kombinierte Passiv-
Infrarot und Ultraschallmelder
Systèmes d'alarme - Systèmes d'alarme intrusion -- Partie 2-5: Exigences pour
détecteurs combinés infrarouges passifs et ultrasoniques
Ta slovenski standard je istoveten z: CLC/TS 50131-2-5:2004
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 50131-2-5
SPECIFICATION TECHNIQUE
TECHNISCHE SPEZIFIKATION April 2004

ICS 13.320
English version
Alarm systems - Intrusion systems
Part 2-5: Requirements for combined passive infrared
and ultrasonic detectors
Systèmes d'alarme –  Alarmanlagen –
Systèmes de détection d'intrusion Einbruchmeldeanlagen
Partie 2-5 : Exigences pour détecteurs Teil 2-5 : Anforderungen an Dualmelder
combinés infrarouges passifs et Passiv-infrarot und Ultraschall-melder
ultrasoniques
This Technical Specification was approved by CENELEC on 2003-11-22.

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 50131-2-5:2004 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 formal vote and was approved by CENELEC as
CLC/TS 50131-2-5 on 2003-11-22. Standstill is maintained.

The following date was fixed:
- latest date by which the existence of the CLC/TS
has to be announced at national level (doa) 2004-07-08

__________
– 3 – CLC/TS 50131-2-5:2004
Contents
Page
1 Scope.5
2 Normative references.5
3 Definitions and abbreviations .5
4 Functional requirements.7
4.1 Indication signals or messages.7
4.2 Detection.8
4.3 Operational requirements.10
4.4 Immunity of the individual technologies to incorrect operation.10
4.5 Tamper security.11
4.6 Electrical requirements.12
4.7 Environmental classification and conditions.13
5 Marking, identification and documentation.13
5.1 Marking and identification .13
5.2 Documentation.13
6 Testing.14
6.1 General test conditions .14
6.2 Basic detection test.15
6.3 Walk testing .16
6.4 Verification of detection performance .17
6.5 Switch-on delay, time interval between signals and indication of detection.19
6.6 Fault condition signals or messages: self tests.19
6.7 Immunity to incorrect operation.20
6.8 Tamper security.21
6.9 Electrical tests.23
6.10 Environmental classification and conditions.24
6.11 Marking and documentation.25

Annex A (normative) Format of standard test magnets.26
Annex B (normative) General test matrix .27
Annex C (normative) Walk test diagrams.29
Annex D (normative) Procedure for standard target calcuations .32
Annex E (informative) Basic detection target for the basic test of detection capability .33
Annex F (informative) Calibration heat source .33
Annex G (normative) Calibration of the standard walk test targets .34
Annex H (informative) Equipment for walk test velocity control.34
Annex J (informative) Immunity to visible and near infrared radiation: calibration of the light source.35
Annex K (informative) List of small tools suitable for testing immunity of casing to attack .35
Annex L (informative) Test for resistance to re-orientation of ajustable mountings .36

Figure A.1 - Format of standard test magnets.26
Figure C.1 - Detection across the boundary and effect of control adjustements.29
Figure C.2 - Detection within the boundary and effect of control adjustements .29
Figure C.3 - High velocity and intermittent movement.30
Figure C.4 - Close-in detection.30
Figure C.5 - Significant range reduction .31
Figure L.1 - Re-orientation test.36

Table 1 - Indication signals and messages .8
Table 2 - General walk test velocity and attitude requirements.9
Table 3 - Tamper security requirements.12
Table 4 - Electrical requirements.12
Table 5 - Range of materials for masking tests.22
Table 6 - Operational tests .25
Table 7 - Endurance tests .25

Introduction
This Technical Specification is a specification for combined passive infrared and ultrasonic detectors (to
be referred to here as the combined 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 combined detector is to detect the broad spectrum infrared radiation emitted by an
intruder and, at the same time, to emit ultrasonic radiation over the area being protected, and analyse
signals that are returned. An intrusion signal or message is only generated when both technologies
register a positive indication of the presence of an intruder, thus reducing incorrect operation. The
combined detector shall provide the necessary range of signals or messages to be used by the rest of the
intrusion detection 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 combined detector. Other
types of detector are covered by other documents identified as drafts in the EN 50131-2 series.

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 (see 4.2.3) or
by suitable system design.
– 5 – CLC/TS 50131-2-5:2004
1 Scope
This Technical Specification provides for security grades 1 - 4 (see EN 50131-1), specific or non-specific
wired or wire-free combined passive infrared and ultrasonic detectors, and is covered by environmental
classes 1 – 3 (see EN 50130-5).

A function designated in the specification as not required for a particular grade may be provided by
themanufacturer. 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
+ A1:1996 standard: Immunity requirements for components of fire, intruder and social
+ A2:2003 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: sower Supplies
EN 60068-1:1994 Environmental testing - Part 1: General and guidance (IEC 60068-1:1988 +
corr. October 1988 + A2:1992)
EN 60068-2-52:1996 Environmental testing - Part 2-52: Tests - Test Kb: Salt mist, cyclic (sodium
chloride solution) (IEC 60068-2-52:1996)

3 Definitions and abbreviations

For the purpose of this document, 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 will generate an intrusion signal in response to stimulation by a
human being or a standard target

3.2
basic detection target
heat source and/or ultrasonic reflector designed to verify the operation of a detector

3.3
ceiling mount detector
detector capable of sensing human movement from a mounting position on the ceiling

3.4
combined passive infrared and ultrasonic detector
detector of the broad-spectrum infrared emitted by a human being, with an active ultrasonic emitter and
detector installed in the same casing

3.5
curtain detector
detector capable of sensing human movement through a continuous layer of detection zones

3.6
local memory
storage medium situated on board the detector, and 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 degrees
3.8
masking
interference with the detector input capability by the introduction of a physical barrier such as metal,
plastic, paper or sprayed paints or lacquers in close proximity to the detector

3.9
ultrasonic detector
detector having an active ultrasonic emitter and detector installed in the same casing

3.10
passive infrared detector
detector of the broad-spectrum infrared radiation emitted by a human being

3.11
simulated walk test target
non-human or synthetic heat source or ultrasonic reflector designed to simulate the standard walk test
target
3.12
incorrect operation
physical condition that causes an inappropriate signal from a detector

3.13
standard walk test target
human being of standard weight and height clothed in close fitting clothing appropriate to the simulation of
an intruder
3.14
standby/unset mode
state of operation in which a detector is not required to generate an intrusion signal or message in
response to stimulation by a human being or a standard target

NOTE  For environmental reasons, the ultrasonic emitter may be switched off.

3.15
test mode
state of operation in which a detector will activate an intrusion indicator in response to stimulation by a
human being or a standard walk test target

3.16
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°

– 7 – CLC/TS 50131-2-5:2004
3.17
walk test
operational test during which a detector is stimulated by the standard walk test target in a controlled
environment
3.18
walk test attitude, upright
upright attitude shall consist of the standard walk test target standing and walking with arms held at the
sides of the body. The standard walk test target begins and ends a traverse with feet together

3.19
walk test attitude, crawling
crawling attitude shall consist of the standard walk test target moving with hands and knees in contact with
the floor
3.20
wire free detector
detector connected to the control and indicating equipment by non-physical means such as radio
frequency signals
3.21 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 combined detectors shall have an alert/set mode. Grades 3 and 4 shall also have an unset mode. If a
combined 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 combined detector communicates. The combined 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 is provided on board the combined detector, it shall not function in the alert /set
mode.
Table 1 - Indication signals or messages
Event Grades Intrusion signal Tamper signal Fault signal
or message or message or message
a
1 – 4 Required Not permitted Not permitted
Intrusion
No stimulus 1 – 4 Not permitted Not permitted Not permitted
Masking 1 – 2 Not required Not required Not required
b b
3 – 4 Required Not required Required
Tamper 1 – 4 Not required Required Not required
Low supply voltage (external) 1 – 2 Not required Not required Not required
3 – 4 Not required Not required Required
1 Not required Not required Not required
Total loss of external power
supply
2 – 4 Required Not required Not required
Local self test pass 1 – 4 Not permitted Not permitted Not permitted
1 – 2 Not permitted Not permitted Not required
Local self test fail
3 – 4 Not permitted Not permitted Required
Remote self test pass 1 – 2 Not required Not permitted Not permitted
3 – 4 Required Not permitted Not permitted
Remote self test fail 1 – 2 Not permitted Not permitted Not required
3 – 4 Not permitted Not permitted Required
a
Not required in unset / standby mode - required in test mode.
b
An independent masking signal or message may be provided instead.
c
Not required for bus systems.
NOTE  For internal power supplies, see EN 50131-6.

4.2 Detection
4.2.1 Detection performance
The combined detector shall generate an intrusion signal or message when the SWT or simulated walk
test target moves within the boundary for a distance of 3 m or across the manufacturers claimed boundary
of detection. An intrusion signal or message shall only be generated when both technologies register a
positive indication of the presence of an intruder.

The variety of velocities and attitudes are as specified in Table 2.

– 9 – CLC/TS 50131-2-5:2004
Table 2 - General walk test velocity and attitude requirements

Test Grade 1 Grade 2 Grade 3 Grade 4
Detection at the boundary Required Required Required Required
Velocity (m/s) 1,0 1,0 1,0 1,0
Attitude Upright Upright Upright Upright
Detection within the boundary Required Required Required Required
Velocity (m/s) 0,3 0,3 0,2 0,1
Attitude Upright Upright Upright Upright
Detection at high velocity Not required Required Required Required
Velocity  (m/s) # 2,0 2,5 3,0
Attitude # Upright Upright Upright
Close-in detection performance
Distance (m) 2,0 2,0 0,5 0,5
Velocity (m/s) 0,5 0,4 0,3 0,2
Attitude Upright Upright Crawling Crawling
Intermittent movement detection Not required Not required Required Required
a
performance
Velocity (m/s) # # 1,0 1,0
Attitude # # Upright Upright
b
Effect of control adjustments Not required  Required Required Required
Velocity (m/s) # 0,3 0,2 0,1
Attitude # Upright Upright Crawling
c c
Significant reduction of specified Not required Not required Not required Not required
range
Velocity (m/s) # # 1,0 1,0
Attitude # # Upright Upright
a
The intermittent movement shall consist of the SWT moving a distance of 1 m by taking two 0,5 m steps (at 1,0 m/s), pausing
for 5 s then continuing for a further 1 s.
b
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.
c
The means to detect a significant reduction in range may be met either by detectors having the appropriate function (see 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 shall be provided at the combined detector to indicate when detection causes an intrusion
signal or message. This indicator shall only have this function, shall not function in the event of power
failure, and 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
manufacturers documentation.
4.3 Operational requirements
4.3.1 Time interval between intrusion signals or messages

Wired combined 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 combined 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 combined detector shall meet all functional requirements within 180 s of the power supply reaching its
nominal voltage.
4.3.3 Fault condition signals
When a combined 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
Combined detectors of all grades shall signal complete power failure according to the provisions of
Table 1.
Additionally, combined detectors of grades 3 and 4 shall signal when the supply voltage moves below the
manufacturers specified range according to the provisions of Table 1.

4.3.5 Self tests
Grade 3 and grade 4 combined 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 combined
detector.
When a remote self-test is initiated a signal or message shall be generated between 1 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 combined detector shall resume it’s previous state within 5 s. Fault indication requirements
appear in Table 1
Where normal operation of the combined detector is inhibited during a local test of function monitoring the
inhibition time shall be limited to a maximum of 15 s in a period of 1 h.

4.4 Immunity of the individual technologies to incorrect operation

The combined 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.
– 11 – CLC/TS 50131-2-5:2004
4.4.1 Immunity to air flow
The PIR component of the combined detector shall not generate an intrusion signal or message when air
is blown over the face of the combined detector.

4.4.2 Immunity to visible and near infrared radiation

The PIR component of the combined detector shall not generate an intrusion 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.

4.4.3 Immunity to ultrasonic signal interference by extraneous sound sources

The ultrasonic component of the combined detector shall not generate an intrusion signal or message due
to the operation of a sound source mounted nearby.

4.5 Tamper security
Tamper security requirements for each grade of combined detector are shown in Table 3.

4.5.1 Prevention of unauthorised access to the inside of the combined detector through covers
and existing holes
Access holes shall not allow interference with the operation of the combined detector by probing with
commonly available tools. Damage must not be caused that would be visible to a person with normal
eyesight viewing from a distance of 1 m with the combined 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 combined 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 combined 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 of adjustable mountings

Where the orientation of a combined detector can be adjusted, resistance to re-orientation of the mounting
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°.
If a combined detector provides a means to adjust the orientation of its coverage pattern, the access to
this means shall be protected by a tamper detection device.

4.5.4 Immunity to magnetic field interference

It shall not be possible to inhibit any signalling devices with a magnet of grade dependent remanence,
according to Table 3. The form of standard magnets is 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 shall be generated by normal human movement at 1 m/s at a distance greater
than 1 m in the unset condition.

Table 3 - Tamper security requirements

Requirement Grade 1 Grade 2 Grade 3 Grade 4
Resistance to access to the inside Required Required Required Required
of the combined detector
a
Removal from the mounting surface Not Required Required Required Required
Resistance to reorientation applied Not Required Required Required Required
torque Nm 2 5 10
Magnetic field immunity T Not Required Required Required Required
0,15 0,3 1,2
Anti-masking capability Not Required Not Required Required Required
a
Required for wire free detectors only.

4.6 Electrical requirements
These requirements do not apply to combined detectors having internal power supplies. For these
detectors refer to EN 50131-6. For a combined detector having an external power supply, the
requirements appear in Table 4.

Table 4 - Electrical requirements

Test Grade 1 Grade 2 Grade 3 Grade 4
Detector power consumption Required Required Required Required
Input voltage range and slow input Not required Required Required Required
voltage rise
Input voltage ripple Not required Required Required Required
Input voltage step change Not required Required Required Required
Total loss of supply Not required Required Required Required

4.6.1 Detector current consumption

The combined 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 rise and input voltage range limits

The combined detector shall meet all functional requirements when the input voltage lies between
± 25 % of the nominal value, or between the manufacturer's range limits if greater. When the supply
voltage is aised slowly, the combined detector shall function normally at the specified range limits.

– 13 – CLC/TS 50131-2-5:2004
4.6.3 Input voltage ripple
The combined 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 the maximum and
minimum 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

Classification is laid down in EN 50131-1. All the relevant environmental tests shall be carried out at the
appropriate level for all security grades, as detailed in EN 50130-5.

4.7.2 Immunity to environmental conditions

All combined detectors shall meet the requirements of the relevant environmental class and security grade
as specified by the manufacturer.

Impact tests shall not be carried out on delicate combined detector components such as LEDs, optical
Windows, lenses or ultrasonic transceivers.

For operational tests, the combined 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 combined 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 combined 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 combined 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 combined detector's field of view
with large objects such as furniture,

i) the manufacturers quoted nominal operating voltage, and the maximum and quiescent combined
detector current consumption at that voltage,

j) the method of detecting a 50 % reduction in range, where provided.

6 Testing
The tests are intended to be primarily concerned with verifying the correct operation of the combined
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, subclause 5.3.1, unless stated otherwise.

Temperature: 15 °C - 35 °C
Relative humidity: 25 % RH - 75 % RH
Air pressure: 86 kPa - 106 kPa

6.1.2 General detection testing environment and procedures

Manufacturers 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 manufacturers claimed field of view, with the combined detector mounted in the
as-used position on a wall or ceiling, or on a free-standing test rig.

To standardise 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 to 14 micron wavelength band, at least directly
behind the SWT, and in the FOV of the combined detector.

To standardise the test area walls and floor for ultrasonic tests, they shall not be constructed from
materials having high ultrasonic reflection.

Volumetric, curtain, and long-range combined 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 combined 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.
– 15 – CLC/TS 50131-2-5:2004
6.1.2.2 Testing procedures
The combined 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. Unless otherwise stated, both
technologies shall operate together normally. The combined detector shall be allowed to stabilise 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 target 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 ± 10 %) °C. If it is greater, attenuation filters shall be placed directly over
the combined detector lens or window to reduce the energy received by the combined detector.
The procedure appears in Annex G.

6.2 Basic detection test
6.2.1 Basic detection targets
The manufacturer shall provide, for testing purposes only, methods for placing either technology
permanently in a state where the other technology may cause an intrusion signal or message.

The purpose of the BDT is to verify that a combined detector is still operational after a test or tests has
been carried out. The BDT verifies only the qualitative performance of a combined detector.

The passive infrared BDT consists of a heat source with equivalent heat emission to that of the human
hand, that can be moved across the field of view of the combined detector.

The ultrasonic reflective BDT shall be a plate having equivalent ultrasonic reflectivity to that of the human
hand, that can be moved across the field of view of the combined detector.

BDTs may be used separately or together. Informative descriptions appear in Annex E. The temperature

of the heat source shall not be 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 passive infrared detection capability

Activate the ultrasonic technology; the unit shall not generate an intrusion signal or message. A stimulus
that is similar to that produced by the SWT is applied to the combined detector using the PIR BDT. Move
the BDT perpendicularly across the centre line of the detection field at a distance of not more than 1 m
from the combined detector, 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 combined detector shall produce
an intrusion signal or message when exposed to the stimulus both before and after being subjected to any
test that may adversely affect its performance.

6.2.3 Basic test of ultrasonic detection capability

Activate the passive infrared technology; the unit shall not generate an intrusion signal or message. A
stimulus that is similar to that produced by the SWT is applied to the combined detector using the
ultrasonic BDT.
Move the BDT along the centre line of the detection field from a distance of 2 m to a distance of 1 m from
the combined detector, at a height where the manufacturer claims detection will occur.

The BDT is to be moved a distance of 1 m at a velocity of 0,5 m/s to 1,0 m/s. The combined detector shall
produce an intrusion signal or message when exposed to the 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
combined detector. The grade-dependent velocities and attitudes to be used by the SWTare 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.

GeneralPass/fail criteria for all walk tests: an intrusion signal or message shall be generated during 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. For a complete test series, 95 % or more of the tests
shall be passed.
6.3.1 The walk test targets
6.3.1.1 The standard walk test target

The SWT shall have the physical dimensions of 160 cm to 185 cm in height, shall weigh (70 ± 10) kg and
shall wear close fitting clothing having a heat emissivity of greater than 80 % in the 8 to 14 micron
wavelength band. No objects having high ultrasonic reflectivity shall be worn or carried by the SWT, or
incorrect ultrasonic reflection will result.

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 combined 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 (see 6.3.2.1).

The temperature differences with the background at each body point are calculated, weighted and
averaged. The informative detail calculation of the SWT temperature difference is given in D.1.

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. It is
known as the simulated target. In case of conflict, a human walk test shall be the primary reference.

6.3.2 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.
– 17 – CLC/TS 50131-2-5:2004
6.3.2.2 Standard walk test target temperature difference

The equivalent average temperature difference Dt between the background temperature and the SWT
e
temperature shall be (3 ± 10 %) °C.

Since the human target is variable in the amount of heat emitted in the 8 to 14 micron wavelength band, it
may be necessary to adjust the signal received from the SWT to achieve the required equivalent average
temperature difference.
The real average temperature difference Dt is measured, and it's value shall be greater than 2,7 °C,
r
(3 - 10 %) °C. As is described in Annex G, 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 apply to all tests in this series.

Detection performance shall be tested against the manufacturers documented claims. Any variable
controls shall be set to the values recommended by the manufacturer to achieve the claimed
performance.
Combined PIR/ultrasonic 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 manufacturers
performance claims.
The diagrams in Annex C show an example of the detection boundary. A reference line
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