I.S. EN 50131-2-4:2020
Current
The latest, up-to-date edition.
Alarm systems - Intrusion and hold-up systems - Part 2-4: Requirements for combined passive infrared and microwave detectors
Hardcopy , PDF
English
04-09-2020
For Harmonized Standards, check the EU site to confirm that the Standard is cited in the Official Journal.
Only cited Standards give presumption of conformance to New Approach Directives/Regulations.
European foreword
Introduction
1 Scope
2 Normative references
3 Terms, definitions and abbreviations
4 Functional requirements
5 Marking, identification and documentation
6 Testing
Annex A (normative) Dimensions & requirements of the standardised test magnets
Annex B (normative) General testing matrix
Annex C (normative) Walk test diagrams
Annex D (normative) Procedure for calculation of the average temperature difference between the standard target and the background
Annex E (informative) Basic detection target for the basic test of detection capability
Annex F (informative) Equipment for walk test velocity control
Annex G (informative) Immunity to visible and near Infrared radiation - Notes on calibration of the light source
Annex H (informative) Immunity to microwave signal interference by fluorescent lights
Annex I (informative) Example list of small tools
Annex J (informative) Test for resistance to re-orientation of adjustable mountings
Annex K (informative) Delta-T film adjustment Lookup table
Annex L (informative) Immunity to turbulent warm air flow fan heater setup
Bibliography
Important note : All end users must be registered with an Account prior to user licenses being assigned.Access your standards online with a subscription
Features
-
Simple online access to standards, technical information and regulations.
-
Critical updates of standards and customisable alerts and notifications.
-
Multi-user online standards collection: secure, flexible and cost effective.