EN 50543:2011 – Electronic portable and transportable apparatus designed to detect and measure carbon dioxide and/or carbon monoxide in indoor ambient air – Requirements and test methods
1 Scope This European Standard specifies requirements for the construction, testing and performance of electronic portable and transportable apparatus for the detection and measurement of carbon dioxide (CO 2 ) and/or carbon monoxide (CO) in indoor ambient air, which includes air entering mechanical ventilation systems in domestic residential, commercial and industrial premises and public buildings.
This European Standard includes indoor air quality apparatus with CO and CO 2 measuring capabilities. This European Standard excludes:
• apparatus used in workplace atmospheres for the direct detection and direct concentration measurement of toxic gases and vapours (i.e. conforming to EN 45544 series);
• electronic portable combustion gas analysers (i.e. conforming to EN 50379 series);
• apparatus for the detection of carbon monoxide in domestic premises (i.e. conforming to EN 50291 series). NOTE 1 Examples of applications are monitoring indoor air quality, measuring CO and/or CO 2 concentrations in commercial laundry and kitchen environments, assessing the safe operation of appliances installed in compartments. NOTE 2 When this apparatus is used in industrial premises national regulations may apply.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 50270:2006, Electromagnetic compatibility – Electrical apparatus for the detection and measurement of combustible gases, toxic gases or oxygen EN 50271 :201 0, Electrical apparatus for the detection and measurement of combustible gases, toxic gases or oxygen – Requirements and tests for apparatus using software and/or digital technologies EN 60068-2-6, Environmental testing – Part 2-6: Tests – Test Fc: Vibration (sinusoidal) (IEC 60068-2-6)
EN 60335-1 :2002 + corr. Jul. 2009 + corr. May 201 0, Household and similar electrical appliances – Safety – Part 1: General requirements (IEC 60335-1:2001, mod.)
EN 60529:1 991 + corr. May. 1 993, Degrees of protection provided by enclosures (IP Code) (IEC 60529:1989)
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
ambient air
normal atmosphere surrounding the apparatus
NOTE The concentration of CO 2 in ambient air is typically different from the concentration in outdoor air.
3.2
clean air
air that contains CO 2 at outdoor air concentrations but is free of CO and other gases and vapours to which the sensor is sensitive or which influence the performance of the sensor
3.3
battery-powered
apparatus designed to be energized from batteries alone, whether disposable or rechargeable
EN 50543:2011 – Electronic portable and transportable apparatus designed to detect and measure carbon dioxide and/or carbon monoxide in indoor ambient air – Requirements and test methods