EN 61326‒1:2006 Electrical equipment for measurement, control and laboratory use-EMC requirements Part 1: General requirements
International standard EN 61326‒1:2006 is applicable for electrical equipment, operating from batteries or mains network with estimated voltage up to 1000V AC or 1500V DC intended to be used for professional, industrial or nonindustrial, manufacturing, educational purposes, including equipment for:
- tests and measurements;
- laboratory use;
- accessories intended to be used for upper mentioned equipment.
- equipment used in residential, commercial and light industrial environments, as described in EN 61000‒6‒1;
- equipment intended to be used in industrial locations;
- equipment to be used in laboratories with a controlled electromagnetic environment;
- portable test and measurement equipment.
International standard EN 61326‒1:2006 for classification of equipment it covers, have a reference to international standard EN 55011:2009, that separates all equipment in two groups– Group 1 and Group 2, each group is subdivided in two classes– class 1 and class 2.
Group 1- covers all devices that are not covered by group 2
Group 2- covers devices that intentionally generates RF energy in frequency range 9kHz-400GHz, that is used in form electromagnetic radiation, inductive coupling, capacitive coupling for material analysis or inspection.
Class A- covers devices for usage in all establishments other than domestic and that are not directly connected to a low voltage power supply network, which supplies domestic environment.
Class B- covers devices for usage in domestic establishments that are directly connected to a low voltage power supply network, which supplies domestic environment.
If class A requirements are applied, then following or similar warning shall be included in the instructions for use:
|This is a class A product. In a domestic environment this product may cause radio interference in which case the user may be required to take adequate measures.|
Electrical measurement and test equipment, that records or indicates one or more electrical or non-electrical quantities– analyzers, generators, power supplies, transducers.
Equipment which controls one or more output quantities to specific values– industrial process measurement and control equipment including, controllers, regulators, power supplies and power systems, actuators, indicators positioners, shakers.
Laboratory equipment, that measures or monitors samples or is used to prepare samples. Also in vitro equipment used in industrial premises and laboratories or domestic premises.
Conducted emission requirements for mains ports and telecommunication ports must be met in frequency range 150kHz-30MHz.
Radiated emission requirements must be met in frequency rage 30MHz-1GHz.
Electrostatic discharge (ESD) immunity.
Electromagnetic field immunity.
Power frequency magnetic field immunity.
Voltage dip and short interruption immunity at power ports.
Electrical fast transients– burst immunity.
Conducted radio frequency immunity.
|Electrostatic discharge||Enclosure||4kV air and contact discharge||B||4kV/8kV air and contact discharge||B|
|Electromagnetic field||Enclosure||80MHz– 1GHz 3V/m
|80MHz– 1GHz 10V/m
|Power frequency magnetic field||Enclosure||Not applicable||–||30A/m||A|
|Voltage dips||AC power||0% 0.5 cycle
0% 1 cycle
70% 25 cycle
0% 250 cycle
|0% 1 cycle
40% 10 cycle
70% 25 cycle
0% 250 cycle
|Surge||AC power||0.5kV(line-line) /1kV(line-GND)||B||1kV(line-line) /2kV(line-GND)||B|
|DC power||0.5kV(line-line) /1kV(line-GND)||B||1kV(line-line) /2kV(line-GND)||B|
|Conducted radio frequency||AC power||150kHz-80MHz 3V||A||150kHz-80MHz 3V||A|
|DC power||150kHz-80MHz 3V||A||150kHz-80MHz 3V||A|
|Signal||150kHz-80MHz 3V||A||150kHz-80MHz 3V||A|