Alarm systems. Intrusion and hold-up systems - Intrusion detectors. Glass break detectors (acoustic)1 Scope This European Standard is for passive acoustic glass break detectors installed in buildings and provides for security Grades 1 to 4 (see EN 501311), specific or non specific wired or wire free detectors, and uses environmental classes I to IV (see EN 501305). This European Standard does not include requirements for passive acoustic glass break detectors intended for use outdoors. A detector shall fulfil all the requirements of the specified

operating in different geographic

Characterization of the fire enclosure and openings

calculation of mass and tolerance of mass

It will also help any organization that wishes to:

Note: BS EN 50131-4 does not deal with requirements for compliance with EC regulatory Directives

The electrical performance requirements have been revised for 2 GHz level

It is intended generally to be applied to a servo-type accelerometer with/without a velocity output

with either a glass or a metal nozzle

An aspirated hygrometer serves for measuring the air temperature and the humidity

These devices can be used in an explosive atmosphere if they also comply with IEC 60079-11

which will secure safe and efficient operation of the ship berth-to-berth regardless of the watchkeeping arrangement in place at a particular time

The designer can use suitable national or regional design standards that provide the required level of safety