EN55011
EMISSIONS

Scope

The limits and methods of measurement laid down in this International Standard apply to industrial, scientific and medical (ISM) equipment as defined in clause 2, and to spark erosion equipment.

NOTE - The limits have been determined on a probablistic basis taking into account the likelihood of interference. In cases of interference, additional provisions may be required.

Procedures are given for the measurement of radio-frequency disturbances and limits are laid down within the frequency range 9 kHz to 400 GHz.

Requirements for lighting apparatus are contained in CISPR 15.

ELECTRICAL EQUIPMENT FOR MEASUREMENT,
CONTROL AND LABORATORY USE -
EMC REQUIREMENTS

EN61326-1
IMMUNITY

Scope

This International Standard specifies minimum requirements for immunity and emissions regarding electromagnetic compatibility (EMC) for electrical equipment, operating from a supply of less than 1 000 V a.c. or 1 500 V d.c. or from the circuit being measured, intended for professional, industrial process and educational use, including equipment and computing devices for:

• measurement and test;
• control;
• laboratory use;
• accessories intended for use with the above (such as sample handling equipment), intended to be used in industrial and non-industrial locations.
  

Computing devices and assemblies and similar equipment within the scope of information technology equipment (ITE) and complying with applicable ITE EMC standards can be used without additional testing.

Where a relevant dedicated EMC standard exists, it shall take precedence over all aspects of this product-family standard.

The following equipment is covered in this standard.

a) Electrical measurement and test equipment

This is equipment which by electrical means measures, indicates or records one or more electrical or non-electrical quantities, also non-measuring equipment such as signal generators, measurement standards, power supplies and transducers.

b) Electrical control equipment

This is equipment which controls one or more output quantities to specific values, with each value determined by manual settings, by local or remote programming, or by one or more input variables. This includes process measurement and control (IPMC) equipment, which consists of devices such as:

• process controllers and regulators;
  
• programmable controllers (PC);
  
• power supply units of equipment and systems (centralized or dedicated);
  
• analogue/digital indicators and recorders;
  
• process instrumentation;
  
• transducers, positioners, intelligent actuators, etc.

c) Electrical laboratory equipment

This is equipment which measures, indicates, monitors or analyzes substances, or is used to prepare materials.

• PROCESS MEASUREMENT AND LABORATORY USE EQUIPMENT.
• INDUSTRIAL PROCESS MEASUREMENT AND CONTROL EQUIPMENT