Conformity With En50131-1; Important - Urmet 1068 Série Mode D'emploi

CONFORMITY WITH EN50131-1

The EN50131-1 standard calls for the installation of a grade four intruder alarm system, based on the level of risk
determined in function of the type of environments, of the value of the goods to be protected, and the typical intruder
expected.
Grade 1: Low risk
It is expected that the intruders have little knowledge of intrusion alarm systems and have a limited range of tools that
can be easily obtained.
It is indicated for premises with contents of low value.
The system is simple and equipped with external and/or internal acoustic alarms, optical warnings, and eventually a
telephonic communicator to vocal messages to other people.
Grade 2: Average-low risk
It is expected that the intruders have limited knowledge of intruder alarm systems and use some tools and portable
instruments (for example, a multimeter).
It is the minimum level that can be recognised by insurance companies. It involves mostly residential and commercial
premises of low value. The system can be connected with a Security Service.
Grade 3: Average-high risk
It is expected that the intruders have knowledge of intruder alarm systems and have a full range of tools and portable
electronic equipment.
It is indicated for commercial and industrial premises, as well as for residential premises with a high value. The system is
usually connected with a Security Service.
Grade 4: High risk
To be used when security has the priority over all other factors. It is expected that the intruders have the skills and
resources to plan a detailed intrusion and have a complete set of tools available, including the means for substituting
components of an intruder alarm system.
This is indicated for particularly sensitive premises, for example, banks.

IMPORTANT!

The EN50131-1 standard requires that the components of the intrusion alarm system are suitable to be used in one of
the following environmental classes, where Class I is the most moderate and class IV is the most severe.
Environmental class I – Indoors
Environmental influences normally present in closed environments, when the temperature is well-controlled (ex: in a
residential or commercial property).
The environment should not be subject to condensation and the temperature should vary between +5°C
and +40°C with an average relative humidity of about 75%.
Environmental class II – Indoors – General
Environmental influences normally present in closed environments, when the temperature has not been controlled (ex: in
corridors, other spaces or stairways where condensation may form on windows and in unheated areas used as a deposit
or in warehouses where heating is intermittent).
The environment should not be subject to condensation and the temperature should vary between -10°C
and +40°C with an average relative humidity of about 75%.
Environmental class III – Outdoors – Sheltered or indoors under extreme conditions
Environmental influences normally present outdoors when components of the intruder alarm system are not totally
exposed to atmospheric agents or indoors, when the environmental conditions are extreme.
The environment should not be subject to condensation and the temperature should vary between -25°C
and +50°C with an average relative humidity of about 75%. For 30 days a year it is expected that the
relative humidity will vary between 85% and 95% without being subject to condensation.
Environmental class IV – Outdoors – General
Environmental influences normally present outdoors, when the components of the intruder alarm system are completely
exposed to the elements.
The environment should not be subject to condensation and the temperature should vary between -25°C
and +60°C with an average relative humidity of about 75%. For 30 days a year it is expected that the
relative humidity will vary between 85% and 95% without being subject to condensation.
DS1068-017
The grade of an intrusion alarm system is the one of its lowest grade component.
4 LBT20717