View source for Safety requirements while using DPH series doorphones

Security rules and proper using must be obligatory observed for assuring device proper operation.
Below basic rules concerning doorphones are presented. Without fulfiling these rules any claim or notice presented by users cann't be accepted by manufacturer.
Rules presented here concerns installation, premises and requirements concerning power supply network.

'''''Installation'''''

* Device should be installed and startup by service with manufacturer authorization.

* All installation activities should be performed according assembly an safety rules.

'''''Working environment'''''

* Device should not be installed inside buildings or spaces with high humidity due to durability and operation of electrical elements. Doorphone housing is resistant on wether circumstances, but when installed otside building it is recommended to install in sheltered places to avoid rain and wind, wich can disturb conversation from doorphone.

* Due to risk of flood of water, devie should not be located near water reserviors (pools, taps, etc.).

* Doorphone should not be installed in premises with high dustiness or electromagnetic field intensity.

Due to possibility of proper functioning, disturbances or casing decolorize it is  not recommended to instal doorphone in following location:

* in premises with direct influence of solar light,

* in premises where wibration are very often or strong,

* near radio aerials (especially for short waves).

'''''Other requirements'''''

* Device should have proper earthing.

* All devices connected to doorphone should have certificate of conformity with standards obligatory in EU.