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CE-mark your newest product

EmbeddedLab

EMC consultancy & engineering

Is your product checked for electromagnetic interference (EMI)? Is electromagnetic compatibility (EMC) like black magic to you? Obtaining a CE-marking for your new product design is of the utmost importance. Any fault in this field can be dangerous for users and bystanders of your device. It can even cause disruption or damage to other devices nearby.

EMI can quickly become a burden, especially when you’re including wireless communication systems in your products (WiFi, BLE, Sigfox, Lora or cellular systems like 4G, LTE-M, NB-IoT …).

Sounds familiar to you? The extensive design experience of Verhaert’s EMC consultants will guide you to solve your problem.

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Product compliance is more than just EMC. You can benefit from our experience in functional safety and environmental testing.

Guus Colman, Consultant EmbeddedLab at Verhaert Masters in Innovation

VERSATILE SKILLS & SERVICES

Applicable standards

Finding which standards your device needs can be complicated. Get guidance in setting up a list of applicable standards and match them with design guidelines.

360° system review

Tackle EMC and safety early in the design process. Speed up and de-risk your development with Verhaert’s 360° system review: a schematics, layout and mechanical review.

Advice during preparation

All test campaigns require a specific preparation. Verhaert helps to prepare your technical construction file and build your test set-up, in order to get the minimum number of tests.

Test lab set-up

Get in contact with test labs and notified bodies to set up EMC, RED, functional safety and environmental test campaigns.

Troubleshooting

Use our tools and experience to quickly identify failures, during and after the test campaign. We offer multiple solutions with a minimal impact on your prototype.

Design a compliant product

As integrated product development company Verhaert can design your compliant product or collaborate with you to fill the gaps in know-how.

What sets us apart?

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50 years of compliant product design

Product compliance has a major role in Verhaert’s projects. Chances are that we encountered your challenge earlier.

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Unbiased advice

Verhaert has no products of its own. We provide independent advice with only your interests in mind.

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Experience in various markets

Benefit from our experience in product compliance in various markets: medical, consumer, industry, energy, building, mobility …

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Crossing the border

We ensure product compliance in specific European countries as well as worldwide, conform the IECEE CB-scheme.

Recent challenging projects

Medical & Health case - Fujirebio

During an in-house pre-compliance test of this IVD measurement device, an ESD-pulse on an isolated heater tray resulted in an operational error. In a lean dedicated test campaign, Verhaert identified the cause and solved it.

LIFE SCIENCES
EMC case - Henkel Somat

Antenna design and optimization to significantly improve WiFi performance for this smart dishwasher cartridge.

FMCG & CONSUMER
EMC case - Engie

Smart add-on sensor to read power consumption and production on a traditional Ferraris meter. Design development from scratch to a full compliant ready-for-market product within a period of 8 months.

SMART CITY, HOME & MOBILITY
EMC case - Sony Softkinetic

Device to perform infrared time-of-flight measurements. Reduction of the electromagnetic emissions without changing the material and look of the housing.

FMCG & CONSUMER

Companies we work for

EMC misconceptions

Green-yellow wire sets systems on the same potential

A green-yellow wire is essential to connect touchable conductive parts to the safety Earth. It behaves as an inductor at higher frequencies, rendering it useless as equipotential connection. When you select a bad wire length, the wire can work as transmitting or receiving antenna. Equipotentiality only exists with respect to a frequency range (e.g. DC to low frequencies for the safety Earth connection). The type and length of the connection defines in which frequency range the systems can be considered as equipotential.

Tying cables together is a good practice as it provides a clean mechanical design

You can create a clean mechanical design by tying cables together, however it can also disrupt your product’s operation. There are multiple methods to provide interference between cables: resistive, capacitive and inductive coupling. The 2 last options depend on the distance between the cables. Communication and analog lines are often very susceptible and power cables can emit large EM-fields. So intelligent cable segregation is important to prevent self-disturbance within your product. In IEC TR 61000-5-2 multiple cable classes are described going from highly susceptible to highly emissive, together with minimal spacing to prevent EMC problems.

My digital system has no radiated emission issues as its clock frequency is only 10 MHz

The origin of radiated emission is a signal source at a certain frequency combined with a radiating antenna. The amount of energy in a square wave is mainly defined by the amount of power in its fundamental frequency. However, the band – in which powerful harmonic frequencies are present – are mainly defined by the rise and fall times, which mainly depend on the driver technology used.

If you take into account that a trace of 3,75 cm is a possible quarter wavelength antenna at 1 GHz on FR4, it’s clear that even an 8-bit microcontroller can cause high frequency radiated emission. 

 

I can certify my product myself, so I don’t need EMC testing which saves me costs

You can indeed self-certify your product in most applications. In the declaration of your product’s conformity, you need to state – on your sole responsibility – that your product complies with all applicable legislation (EMC, safety, RED …). It’s advisable to gather proof to support these claims.

My product is a combination of CE-compliant components, this means my product is automatically CE compliant

Only an end-user can combine CE-compliant products into a system (such as a home cinema system) without needing to comply with CE. If however, you intend to sell a system, this needs to comply with all applicable legislation. This is harder to achieve than CE-compliance for each of its separate parts.

For example, you combine 4 ventilators into a ventilation system and bring it to the market as one entity. As the system performs the same functionality as a single ventilator, the legislation remains the same. This means that the limits for e.g. radiated emission are the same. In this example, the ventilators of the ventilation system can emit 4 times less than a single ventilator to meet the EMC-requirements.

Let’s talk

Picture - Guus Colman

Guus Colman
T +32 3 250 19 00

Verhaert Masters in Innovation is a pioneering innovation group helping companies and entrepreneurs to innovate, creating new products, businesses and services.

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