1. Detection

    1. Detection performance

      1. Generalities

The operating parameters of the detector shall be verified as specified by the manufacturer for the axes of movement shown in Annex D. The operating parameters shall be defined under the condition that a successful locking position is ensured.

The manufacturer shall clearly state in the product documentation all removal/break and approach/make distances including their tolerance range for each distance in order to specify all potential variances due to product design and manufacturing.

Furthermore, the manufacturer shall clearly state as well in the product documentation any special limitation concerning installation e.g. a prohibited area between a surface on the detector and the minimum make distance.

  1. Removal/break distance

  2. The detector shall generate an intrusion signal or message at the removal/break distance specified by the manufacturer. This distance shall be specified for all normal operating axes. If the detector is designed for installation on ferromagnetic surfaces or in ferromagnetic material, the removal/break distance shall also be specified for all normal operating axes when the detector is mounted using the material as specified in Annex E.Approach/make distance

The detector shall generate a reverse signal or message at the minimum separation distance(s) specified by the manufacturer. This distance(s) shall be specified for all normal operating axes. If the detector is designed for installation on ferromagnetic surfaces or in ferromagnetic material, the approach/make distance shall be specified for all normal operating axes when the detector is mounted using the material as specified in Annex E.

  1. Indication of detection

When a detection indicator is provided to show when an intrusion signal or message is generated and in normal operation visible (e.g. surface mounted contacts) when installed according to the manufacturer's instructions, this indicator shall be capable of being enabled and disabled.

The adjustment to enable or disable this indication locally within the detector shall only be accessible when the detector is opened by normal means, in case of opening is required.

A detector at grade 3 or grade 4 shall be capable of receiving indication enable and disable commands from the CIE when such an indicator is present, according to clause one of this paragraph.

  1. Operational requirements

    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.



  1. Switch on delay

Where a detector requires an internal or external power supply in accordance with 4.6, the detector shall meet all functional requirements within 180 s of the power supply reaching its nominal voltage.

  1. Fault condition signals

A detector shall generate a fault signal or message in accordance with the manufacturer’s specification and the provisions of Table 2 in the presence of a fault condition, according to Table 1, or as a result of an internal self-test, if this feature is provided.

  1. Tamper security

    1. Tamper security requirements

All terminals and means of mechanical and electronic adjustments shall be located within the detector’s housings.

The tamper security requirements for each grade of detector are shown in Table 1.

  1. Prevention and detection of 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 prevent normal operation.

If the detector can be opened, a tool shall be required to open the unit. For grades 2, 3 and 4 detectors all covers giving access to components that could adversely affect the operation of the detector shall be fitted with a tamper detection device that shall generate signals or messages in accordance with Table 2. It shall not be possible to gain such access without generating a tamper signal or message or causing visible damage. Sealed contacts do not require the means to detect access to the inside of the detector.

  1. Detection of removal from the mounting surface

Means shall be provided which generates a tamper signal or message in accordance with Table 2 if the detector is removed from the mounting surface. Operation of the tamper detection means shall not be compromised by deliberate tamper actions. The means shall activate before access can be gained to it.

  1. Magnetic or electromagnetic field interference

When the detector is mounted in accordance with the manufacturer’s instructions and is subject to the presence of an external field, which is based on the same physical principal as the connecting field (e.g. magnetic or electromagnetic) generated by:

  • the interference test unit as specified in Annex A and one interference test unit which is identical to the corresponding unit, each applied to the faces of the detector according to Annex F for purely magnetic field based products (one after one) to generate an external connecting field;

  • an interference test unit based on the same physical principal and digital identification means (e-.g. tag number provided by a RFID field, if encryption is not provided) applied to the faces of the detector according to Annex F to generate an external connecting field;

the detector shall either:

  1. be immune to any influence by each of the interference test units and continue to operate normally with the make and break distances not exceeding twice those specified in accordance with 4.3.1, or

  2. generate an intrusion, and/or tamper, and/or fault, and/or other independent signal or message in accordance with Table 2 when the make or break distances exceed twice those specified in accordance with 4.3.1; these signals or messages may be generated either on application of the interference test unit or when the corresponding unit has returned to its original installed position.

NOTE The signals or messages generated by a grade 4 detector are intended to be used by the l&HAS to positively identify an attempt to sabotage the detector through magnetic or electromagnetic field interference.

In case of purely magnetic field based products, a further interference test shall be performed to identify and avoid specific critical points at the process unit where magnetic interference or manipulation could be possible (e g. to reduce the risk of manipulation which simulates that the window is in a closed and locked state of the process unit of an open window). Therefore, the pure interference test magnet shall be applied at any selected area or point directly to each accessible surface of the process unit, while no other magnetic fields shall have influence (e.g. corresponding unit or interference test unit). In that case, in accordance with Table 2, the detector shall generate a tamper, and/or fault, and/or other independent signal or message; alternatively, for Grade 3 products, the process unit shall stay in the state that represents an intrusion event.

4.5.5 Matched pairs, coding and encryption

If a grade 4 detector is a purely magnetic field based product, it shall consist of a matched pair of switch component and corresponding unit or similar means. The means of matching shall have a minimum of 8 differs. It shall not be possible to determine the specific pair identity by visual inspection of the detector.

If the connection between the process and the corresponding unit relies purely on digital identification means (e.g. tag number provided by a RFID field), it shall not be easily possible to simply read out the digital identification information and to generate a copy of the unit that holds the digital identification information. This applies to grade 3 and grade 4 digital identification means based products.

In such cases, encryption, rolling code or other protection mechanisms shall provide a certain level of security.

  1. Electrical requirements

    1. Grade dependencies

The requirements of 4.6.2 to 4.6.5 only apply to detectors having external power to operate the components of the detector.

Table 3 — Electrical requirements

Test

Grade 1

Grade 2

Grade 3

Grade 4

Detector current consumption

Required

Required

Required

Required

Input voltage range

Required

Required

Required

Required

Slow input voltage rise

Not required

Required

Required

Required

Input voltage ripple

Not required

Required

Required

Required

Input voltage step change

Not required

Required

Required

Required



  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.

  1. Slow input voltage change and input voltage range limits

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

  1. Input voltage ripple

The detector shall function during the sinusoidal variation of the input voltage by ±10% of nominal, at a frequency of 100 Hz.

  1. Input voltage step change

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

  1. Total loss of external power

This subclause does not apply to detectors with internal power supplies or detectors in bus systems.

This does not include any applied voltage to a purely mechanical (e.g. pure magnetic field I reed switch) based detector. This test only applies to wired and wire free grade 4 detectors and wire free grade 3 detectors.

An intrusion signal or message shall be generated by the total loss of the supply voltage. No generation of a message or signal is required when this total loss of external power condition is detected by the CIE due to system design, e.g. bus based systems.

  1. Low supply voltage

This subclause applies to detectors that require either internal or external power supplies.

This does not include any applied voltage to a purely mechanical (e.g. pure magnetic field/reed switch) based detector. This test only applies to wired and wire free grade 4 detectors and wire free grade 3 detectors.

A fault signal or message shall be generated when the minimum level of voltage that is required for the detector to operate reliably is compromised according to the specification of the manufacturer. No generation of a message or signal is required when this low power condition is detected by the CIE due to system design, e.g. bus based systems.

  1. Interconnection Integrity

The detector shall provide means to enable the l&HAS to monitor the integrity of the interconnection. Where the interconnecting cable or wire is provided with the detector, means shall be provided to permit the monitoring of this interconnecting cable in accordance with EN 50131-1 (e.g. a tamper loop or end-of line resistor built into the body of the detector).

This requirement may be fulfilled either by the detector itself or by suitable system design.

  1. Environmental classification and conditions

    1. Environmental classification

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

  1. Immunity to environmental conditions

Detectors shall meet the requirements of the relevant environmental tests described in EN 50130-5 at the severity levels defined in Table 4 and in Table 5.

For all grades, the detector shall not generate or be affected by the EMC conditions and severity levels defined in EN 50130-4 and EN 61000-6-3.

Unless specified otherwise for operational tests, the detector shall not generate unintentional intrusion, tamper, fault or other signals or messages when subjected to the specified range of environmental conditions.

For endurance tests, the detector shall continue to meet the requirements of this Technical Specification after being subjected to the specified range of environmental conditions.

  1. Marking, identification and documentation

    1. Marking and/or identification

Marking and/or identification shall be applied to the product in accordance with the requirements of EN 50131-1.

  1. Documentation

The product shall be accompanied with clear and concise documentation in accordance with EN 50131-1. The documentation shall additionally state for the corresponding grade dependent functions:

  1. a list of all options, functions, inputs, indications, signals or messages and their relevant characteristics;

  2. the recommended mounting configuration, details of suitable fixing methods, prohibited areas, mounting location and siting requirements;

  3. a statement of the operational Approach/make and Removal/break distances on ferromagnetic and non­ferromagnetic mounting surfaces for all recommended configurations and operational axes including all tolerances as described in 4.3.1.1;

  4. the effect of any adjustable controls on the detector’s performance;

  5. any disallowed field adjustable control settings or combinations of these;

  6. the operating voltage range and/or nominal operating voltage and the maximum and quiescent detector current consumption at this nominal voltage, if applicable;

  7. the value of supply voltage below which a fault signal is generated, if applicable;

  8. if the direct installation in or on ferromagnetic material is supported, this should be mentioned in the product documentation, including all relevant potential material or/and changes to any product characteristics due to that installation environment (e.g. make I break distances, tolerances, etc.).

  1. Testing

    1. Generalities

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.

  1. General test conditions

    1. Standard laboratory conditions for testing

The general atmospheric conditions in the measurement and tests laboratory shall be those specified in EN 60068-1:1994, 5.3.1, unless stated otherwise:

  • temperature: 15 °С to 35 °С;

  • relative humidity: 25 % RH to 75 % RH;

  • air pressure: 86 kPa to 106 kPa.

  1. General detection testing environment and procedures

The manufacturer’s documented instructions regarding mounting and operation shall be read and applied to all tests.

  1. Testing procedures

The intrusion and, where appropriate, tamper, fault and any other signal or message outputs shall be monitored.

Where appropriate, the detector shall be connected to the nominal supply voltage, and allowed to stabilise for 180 s.

  1. Basic test of detection capability

The general test conditions of 6.2 apply.

Monitor the output of the detector with its corresponding unit within the make distance. Move the corresponding unit to a position beyond the break distance. Record the status of the intrusion signal or message during the test.

Pass/Fail criteria: An intrusion signal or message shall be generated when the corresponding unit is moved beyond the break distance.

  1. Verification of detection performance

    1. Generalities

The general test conditions of 6.2 shall apply to all tests in this series.

Detection performance shall be tested against the manufacturer’s documented claims. Any variable controls shall be set to the values recommended by the manufacturer to achieve the claimed performance.

To allow a proper monitoring of the operating parameters while in lock state, it is required that the underlying lock mechanism, either direct or indirect by reference, can be simulated based on the assumption that a successful lock position is ensured. This shall be taken into account, when the operating parameters will be validated in the test sections.

Whereas performance distances claimed by the manufacturer, tolerances shall be specified in mm or as percentage and be part of the product documentation, if applicable. The general tolerance of ±10% mentioned in 6.1 shall be calculated against these mentioned tolerances, if applicable.

  1. Measurement of make I break distances

By moving the corresponding unit relative to the process unit, measure the make and break distances where the process unit generates intruder and reverse signals or messages. Record the response of the process unit. Note the make and break distances for all the configurations claimed in the manufacturer’s documentation.

Pass/Fail criteria: An intrusion signal or message shall be generated when the break distance is exceeded and shall generate a reverse signal or message when the make distance is reached as claimed in the manufacturer’s documentation.

  1. Switch-on delay, time interval between signals, and indication of detection

The general test conditions of 6.2 apply.

Switch on the detector's power supply (if available and required) with the indicator enabled (if provided), and allow 180 s for stabilisation. Carry out the BTD. Note the response. Carry out the BTD again, after the grade­dependant time interval between signals according to 4.4.1. Note the response again. Disable the intrusion indicator (if provided). Repeat the BTD.

Pass/Fail criteria: The detector shall generate an intrusion signal or message in response to the BTD. The intrusion signal or message and the intrusion indicator shall respond at the same time. A second intrusion signal or message shall be generated after the grade-dependant time interval specified in 4.4.1 has elapsed. With the indicator disabled (if provided), the detector shall still generate an intrusion signal or message.

  1. Tamper security

    1. Generalities

The general test conditions of 6.2 apply.

The tests of this subclause shall be applied to the detector at the grade in accordance with Table 1.

  1. Prevention and detection of access to the inside of the detector through covers and existing holes

Attempt to overcome the tamper detection device by deliberate attack with normally available objects as listed in Annex C, by distorting the housing or by attempting to access the connections or components within the process unit without causing visible external damage. Grade dependency appears in Table 1. Monitor the outputs of the detector.

Pass/Fail criteria: Where there is no physical damage to the detector, a tamper signal or message shall be generated before access is gained to any circuit connection or control that can adjust the performance of the process unit.

  1. Detection of removal from the mounting surface

The object of this test is to confirm the operation of the tamper device by removing the process unit from the mounting surface.

Place the process unit on the mounting surface without the fixing screws, unless they form a part of the tamper detection device.

Slowly prise the process unit away from the mounting surface and attempt to prevent the tamper device from operating by inserting a strip of steel between 100 mm and 200 mm long by 10 mm to 20 mm wide, and 1 mm thick between the rear of the detector and its mounting surface. Attempt to gain access to the circuit connections or controls. Monitor the outputs of the process unit.

Pass/Fail criteria: A tamper signal or message shall be generated before the tamper device can be inhibited or access is gained to any circuit connection or control that can adjust performance, according to Table 1 and Table 2.