VicoMeter Halogen Moisture Analyzers Obtain CE-EMC Certification Report

2018-12-28

After more than half a year of technical development and functional testing, the VicoMeter VM-S series, VM-Q series, WKT-E series, DHS series and VM-TH series halogen moisture analyzers have successfully obtained CE-EMC certification reports

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What Is CE-EMC Certification

I. Overview of CE-EMC Certification

The IEC (International Electrotechnical Commission) defines electromagnetic compatibility as follows: a system or device can function properly in its electromagnetic environment without causing interference to other systems and devices.

To standardize the management of electromagnetic compatibility of electrical equipment among EU Member States and harmonize their EMC regulations, the EMC Directive 89/336/EEC was issued on May 1, 1989 and became mandatory on January 1, 1996; the current directive is 2004/108/EC. The updated EMC Directive is numbered 2014/30/EU and took effect on April 18, 2014. The old EMC Directive 2004/108/EC was repealed on April 20, 2016. Below,VicoMeterlet's take a closer look!

II. Product Scope of CE-EMC Certification:

1. Products covered by the EMC Directive of CE electromagnetic compatibility certification include:

Household appliances and household electronic equipment;
Household radio and television receivers;
Industrial manufacturing equipment;
Mobile radio equipment;
Mobile radio communication and commercial wireless telephone equipment; medical and scientific apparatus;
Information technology equipment;
Telecommunications networks and equipment;
Lighting equipment and fluorescent lamps;
Aeronautical and maritime radio equipment;
Audio-visual teaching equipment.

2. Products NOT covered by the EMC Directive of CE electromagnetic compatibility certification include:

1) Components without a direct function:

a) Electrical and electronic components in electrical and electronic circuits: resistors, capacitors, coils; electron tubes, transistors, thyristors, triacs, etc.; integrated circuits.
b) Cables and cable accessories.
c) Relays.
d) Plugs, sockets, terminal blocks, etc.
e) Light-emitting diodes, liquid crystal displays, etc. f) Simple mechanical thermostats.

2) Similar components with a direct function:

a) Plug-in cards, microprocessor cards, central processing unit cards/motherboards, email cards, communication cards, etc. for computer systems;
b) Programmable logic controllers;
c) Elevator controllers;
d) Motors (except induction motors);
e) Computer disk drives;
f) Power supply units (PSU) for automatic control equipment;
g) Electronic temperature controllers.

III. Core Requirements of CE-EMC Certification:

The EMC Directive of CE certification requires that the electromagnetic emissions generated by all electrical and electronic products and equipment containing electrical or electronic components must not exceed specified limits, so as not to interfere with the normal operation of other equipment; products must also have a certain level of immunity so that they can operate normally under normal conditions (that is, they can resist electromagnetic interference emitted by other devices that is below the limits allowed by industrial standards).

IV. Documents Required for CE-EMC Certification:

1. Product manual;

2. Product structure description;

3. Product electrical schematic diagram and printed circuit board diagram;

4. List of key EMC components of the product;

5. Other relevant documents required when necessary;

6. Copies of certification certificates for key safety components of the product;

7. Description of differences between product models within the same application unit.

V. Similarities and Differences Between EMI and EMS in CE-EMC Certification

1. EMC includes EMI (interference) and EMS (susceptibility), that is, electromagnetic interference and electromagnetic susceptibility.

2. EMI, electromagnetic interference, describes the degree of electromagnetic radiation interference a product causes to other products, and whether it will affect the normal operation of the surrounding environment or other electronic or electrical products within the same electrical environment; EMI further includes conducted interference CE (conduction emission), radiated interference RE (radiation emission), and harmonics

harmonic.

3. EMS, electromagnetic susceptibility, describes whether an electronic or electrical product will be affected by interference from its surrounding environment or other electronic or electrical products within the same electrical environment, thereby affecting its own normal operation.

EMS further includes electrostatic discharge immunity (ESD), radio frequency immunity (EFT), electrical fast transient/burst immunity, surge immunity, voltage dip immunity (Dip), and other related items.