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Test report EMC

Test for EMC compliance of the PRIOline aluminum enclosure
from Richard Wöhr GmbH, 75339 Höfen/Enz.

Object of investigation: ALU-enclosure

This test measures the dampening effect of the above enclosure. The enclosure has the following dimensions:

         W = 260 mm
         H = 200 mm
         D = 270 mm

it is produced in PRIOline profile technique, chromated and provided with milled-in grooves at the joint edges (series-production status).

The purpose of this test is to prove the EMC compliance of this type of enclosure. For this purpose, a small emitter with a fundamental frequency of 6MHz was put into the enclosure, this one was closed and then two axes were measured.

The radiation of the emitter outside the enclosure is shown in the image included below.

Result

As the emitter radiates with a maximum of up to 35dBµV (300MHz) (unshielded) and radiation is no longer measurable when it is mounted inside the enclosure, a dampening effect of at least 50dBm can be assumed. This applies both to the radiation released and to the (incoming) irradiation.

Note for manufacturers of electronic devices in connexion with Wöhr-PRIOline enclosures:

As a matter of course, conductors which leave the enclosure must either have a shielding (directly connected to the aperture of the enclosure) or a filter in order to reach dampening values similar to those mentioned above. This enclosure constitutes a simple but effective measure for high dampening values.

Upon request, we will provide you with the complete test report No. 2004011310.
 

Scope of testing / summary

EN 61000-6-3 residential environment (former EN 50081-1)

Interference/Emission	Result	Comment
Interfering field strength 30MHz – 1GHz EN 55022	complies with the requirements	residential environment

Interfering field strength
Test method: according to EN55022

Series test: type test: Prototype: Serial number: -

Test date: 22. Jan.2004

Tested device: PRIOLine aluminum enclosure

The device complies with the requirements for emitted interference acc. to EN55022:  yes       no

EN 55022 interference radiation measurement residential environment

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Tel: 07081/9540-0

Fax: 07081/9540-90

Email: Prioline@WoehrGmbH.de

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