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Home>>About Hunt Engineering>>EMC compliance

EMC

European regulations were introduced to ensure that products could be purchased within the EU and assumed to be compatible with other products on the market. Essentially in today’s Global Market these regulations are just common sense. It is important in all parts of the world (not just Europe) that electrical systems should be able to function correctly despite interference from other systems, whilst providing a low enough level of emissions so as not to interfere with other equipment.

The actual European regulations are vague in respect as to whether a particular product needs to be declared as compliant or not. There is a reference to components of a system not requiring the CE mark, but it being mandatory to apply it to systems. From this it is hard to define whether a module needs to be compliant, but we decided that it is better to apply the same design and testing techniques to all of our products. This helps us to understand what might become a problem when a full system is assembled, and allows our customers to be more confident that any particular system will not suffer from EMC problems.

The CE mark indicates compliance with a number of directives, which include EMC.

We comply with the electrical safety and immunity directives by applying our own internal design guidelines, and test for EMC emissions using our own pre-compliance test equipment. This equipment is calibrated to traceable standards and the effects of the environment on a particular test run is always measured using a calibrated noise source. This allows us to be confident in declaring compliance of our products.

Some of our products will only comply if used in a particular way, which is fully described in the user documentation, in particular cabling can be a problem if used outside of a system enclosure.

Because we have the internal guidelines and test equipment we are able to test any system that we manufacture, and make the declaration of compliance for it, if this is a requirement of the customer.

In addition we can offer advisory services to any customer who is integrating our systems into their own enclosures.