CE Certification and EN 55032 Testing for Displays

CE certification refers to compliance with European Union (EU) safety standards and obtaining corresponding certification. For manufacturers of electronic products planning to sell in the European market, CE certification is a critical legal requirement. Achieving CE certification demonstrates that the product meets the EU’s safety requirements, opens sales channels, and enhances market competitiveness.

EN 55032 is an EU standard addressing electromagnetic compatibility (EMC). This standard covers the radio interference characteristics of broadcast and broadband emission devices. It specifies the interference immunity requirements for products concerning various frequency ranges, such as those used by radio, television, and communication equipment.

EN 55032 Testing Requirements

EN 55032 testing includes the following:

1. Radiated Emissions Test

Measures the power of electromagnetic waves radiated by the product within a specified range to ensure it does not interfere with other devices.

2. Conducted Emissions Test

Measures the degree of conducted interference within a specific frequency range when the product is connected to a disturbance source, ensuring it does not cause conducted interference to other devices.

3. Immunity Performance Test

Introduces interference sources in the product’s surrounding environment and measures its ability to operate normally under interference.

4. Antenna Radiation Power Measurement

Measures the antenna’s radiated power to evaluate the product's electromagnetic radiation levels during normal operation.

5. Frequency Range and Limitations

Specifies the limits for electromagnetic radiation and conducted interference within various frequency ranges to prevent interference with other devices.

EN 55032 testing ensures that products operate within specified electromagnetic radiation and transmission interference limits. Manufacturers can verify compliance with these requirements through laboratory testing.

Scope of EN 55032 Standard

The EN 55032 standard applies to multimedia equipment with AC or DC rated voltages not exceeding 600V. Multimedia equipment includes information technology equipment, audio equipment, video equipment, broadcast receiving devices, entertainment lighting control equipment, or combinations thereof. Products previously under EN 55013 and EN 55022 standards are now covered under EN 55032. Multimedia equipment for professional use is also included.

EN 55035 Electromagnetic Compatibility Requirements

The EN 55035 standard specifies the following EMC requirements for devices:

1. Radiated Power Limits

Devices must not exceed specified radiated power values across frequency bands.

2. Electromagnetic Field Strength Limits

Devices must not exceed the specified electromagnetic field strength at a distance of 1 meter.

3. Distance and Duration Requirements

Devices must be installed in specified locations to simulate actual use scenarios. Testing typically lasts several hours to assess long-term performance.

Additional CE Certification Standards for Multimedia Products

CE certification for multimedia electronic products must also comply with the following standards, based on voltage and current requirements:

1. EN 62368-1

Safety requirements for audio/video, information, and communication technology equipment, applicable to products like televisions and audio equipment adapters.

2. EN 61000-3-2

EMC limits for harmonic current emissions (equipment input current ≤16A/phase).

3. EN 61000-3-3

EMC limits for voltage fluctuations and flicker in public low-voltage supply systems (equipment with rated current ≤16A).