EN 50379-2:2012

SLOVENSKI STANDARD
01-junij-2012
Specifikacija za prenosne električne naprave za merjenje parametrov dimnih
plinov grelnih naprav - 2. del: Zahtevane lastnosti za naprave, ki se uporabljajo pri
zakonsko predpisanem pregledovanju in ocenjevanju
Specification for portable electrical apparatus designed to measure combustion flue gas
parameters of heating appliances - Part 2: Performance requirements for apparatus used
in statutory inspections and assessment
Anforderungen an tragbare elektrische Geräte zur Messung von
Verbrennungsparametern von Heizungsanlagen - Teil 2: Anforderungen an das
Betriebsverhalten von Geräten für den Einsatz bei gesetzlich geregelten Messungen und
Beurteilungen
Spécification pour les appareils électriques portatifs conçus pour mesurer les paramètres
des gaz de combustion dans les conduits d'évacuation des appareils de chauffage -
Partie 2: Prescriptions des caractéristiques des appareils utilisés au cours des
inspections et évaluations réglementaires
Ta slovenski standard je istoveten z: EN 50379-2:2012
ICS:
13.040.40 Emisije nepremičnih virov Stationary source emissions
91.140.10 Sistemi centralnega Central heating systems
ogrevanja
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN 50379-2
NORME EUROPÉENNE
April 2012
EUROPÄISCHE NORM
ICS 13.320 Supersedes EN 50379-2:2004

English version
Specification for portable electrical apparatus designed to measure
combustion flue gas parameters of heating appliances -
Part 2: Performance requirements for apparatus used in statutory
inspections and assessment
Spécification pour les appareils Anforderungen an tragbare elektrische
électriques portatifs conçus pour mesurer Geräte zur Messung von
les paramètres des gaz de combustion Verbrennungsparametern von
dans les conduits d'évacuation des Heizungsanlagen -
appareils de chauffage - Teil 2: Anforderungen an das
Partie 2: Prescriptions des Betriebsverhalten von Geräten für den
caractéristiques des appareils utilisés au Einsatz bei gesetzlich geregelten
cours des inspections et évaluations Messungen und Beurteilungen
réglementaires
This European Standard was approved by CENELEC on 2012-03-19. CENELEC members are bound to
comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European
Standard the status of a national standard without any alteration.

Up-to-date lists and bibliographical references concerning such national standards may be obtained on
application to the CEN-CENELEC Management Centre or to any CENELEC member.

This European Standard exists in three official versions (English, French, German). A version in any other
language made by translation under the responsibility of a CENELEC member into its own language and
notified to the CEN-CENELEC Management Centre has the same status as the official versions.

CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia,
Cyprus, the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland,
Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania,
Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom.

CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung

Management Centre: Avenue Marnix 17, B - 1000 Brussels

© 2012 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 50379-2:2012 E
Contents
For e wor d . 3
Introduction . 4
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 5
4 General requirements . 5
5 Test methods and performance requirements . 6
5.1 General requirements for tests . 6
5.2 Normal conditions for tests. 6
5.3 Mechanical tests . 6
5.4 Electrical and software tests . 7
5.5 Tests with test gases . 7
5.6 Tests with real flue gases . 8
5.7 Calculated values . 9
5.8 Temperature . 9
5.9 Pressure . 10
Bibliography . 11

– 3 – EN 50379-2:2012
Foreword
This document (EN 50379-2:2012) has been prepared by CENELEC TC 216 "Gas detectors".

The following dates are fixed:

(dop) 2013-03-19
• latest date by which this document has
to be implemented at national level by
publication of an identical national
standard or by endorsement
(dow) 2015-03-19
• latest date by which the national
standards conflicting with this
document have to be withdrawn
This document supersedes EN 50379-2:2004.

EN 50379-2:2004:
— 5.5.7 considers calibration curves for sensors with nonlinear signal;

— 5.5.8 considers influence of pressure variations;

— 5.5.9 considers the influence of water vapour on the gas signal;

— 5.7.2 for calculated values was amended;

— 5.7.4 considers 15 min. average concentration for solid fuels;

— 5.9.1 was amended to cover measurement at the circular orifice.

Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. CENELEC [and/or CEN] shall not be held responsible for identifying any or all such patent rights.

____________
Introduction
This European Standard covers apparatus for measuring gas concentrations and other combustion
parameters, as used in the installation and maintenance of heating appliances. It forms a specification for
portable electrical apparatus designed to measure combustion flue gas parameters of heating appliances,
and includes the following parts under the generic title Specification for portable electrical apparatus
designed to measure combustion flue gas parameters of heating appliances:
Part 1: General requirements and test methods;
Part 2: Performance requirements for apparatus used in statutory inspections and assessments;
Part 3: Performance requirements for apparatus used in non-statutory servicing of gas fired heating
appliances.
EN 50379-1 specifies general requirements for the construction, testing and performance of portable spot
reading apparatus designed to give an assessment of specific combustion flue gas parameters such as
concentration of gaseous compounds, temperature and/or pressure to check the combustion performance of
heating appliances for domestic residential and commercial applications using commercially available fuels.
EN 50379-2 is for apparatus intended to be used for statutory measurement. In several European countries,
legal requirements exist for the performance of heating appliances. Authorised inspectors use these
apparatus to measure the flue gas parameters, in order to test compliance with national regulations. Due to
the legal consequences resulting from the measurement there are strict requirements regarding the
measuring uncertainty of these apparatus. Therefore EN 50379-2 includes maximum values for measuring
uncertainty of the apparatus. Tests with real flue gases form a key part of the verification of the performance
of the apparatus for statutory measurement. The measuring uncertainty has to be justified by internationally
accepted methods over the whole measuring range.
EN 50379-3 is for apparatus intended to be used for non-statutory applications. There are reduced
performance requirements, because the apparatus are designed to decide if maintenance for a gas fired
appliance is required, and for adjusting the appliance during maintenance. There will be no determination of
the measuring uncertainty for the apparatus.

– 5 – EN 50379-2:2012
1 Scope
This European Standard covers apparatus designed to measure flue gas parameters of heating appliances
for domestic residential and commercial applications using commercially available fuels in compliance with
metrological specification.
The apparatus may consist of different functional modules that may be tested separately for complying with
this standard and will be combined in different ways according to the different applications. Part 1 of
EN 50379 specifies the general requirements and is supplemented by the requirements in EN 50379-2
and/or EN 50379-3.
This European Standard specifies the performance requirements of portable spot reading apparatus
designed to give a measurement of specific combustion flue gas parameters such as concentration of
gaseous compounds, temperature and/or pressure to be used for testing the compliance with national
regulations for the above mentioned appliances.
This European Standard excludes apparatus for
– continuous emission, safety monitoring and control, and
– use in vessels with an international load line.
NOTE 1 When this apparatus is used in industrial premises, national regulations should be observed.
NOTE 2 Apparatus may contain functional modules that are not covered by this standard e.g. measurement of smoke
spot number (see EN 267:2009+A1:2011, Annex A) and/or measurement of indoor ambient air (see EN 50543).
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. 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 50271:2010, 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 50379-1:2012, Specification for portable electrical apparatus designed to measure combustion flue
gas parameters of heating appliances – Part 1: General requirements and test methods
EN 60335-1:2002, Household and similar electrical appliances – Safety – Part 1: General requirements
(IEC 60335-1:2001, mod.)
EN 60529:1991, Degrees of protection provided by enclosures (IP Code) (IEC 60529:1989)
3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN 50379-1:2012 apply.
4 General requirements
Unless otherwise stated, the general requirements of EN 50379-1:2012 are applicable and shall be checked
by visual inspection.
5 Test methods and performance requirements
5.1 General requirements for tests
5.1.1 General
The requirements specified in EN 50379-1:2012, 5.1.1 are applicable.
5.1.2 Samples and sequence of tests
For the purposes of type testing, for each sample the first test to be carried out shall be the initial
performance test (5.5.3). One sample of the apparatus shall be subjected to the relevant tests given in 5.3
and 5.4. The mechanical tests of 5.3 shall be carried out before the tests of 5.4 to 5.9. After finishing the
mechanical tests of 5.3 the initial performance test shall (5.5.3) be repeated at room temperature.
NOTE Due to the use of different calibration gases at pre-calibration by the manufacturer and type testing according
to this standard the instruments may show a discrepancy. In this case, it is permissible to make minor adjustments to the
apparatus during the initial performance test (5.5.3).
The EMC testing according to 5.4.1 may be carried out independently from all other tests of the standard.
A further sample, or the same if desired, may be used for the tests in 5.5, 5.7, 5.8 and 5.9. Two samples
shall be used for the tests in 5.6, of which one may be the sample used for the earlier tests.
At least two specimens are required for 5.6, to determine the standard deviation in performance between
samples, in order to specify the measurement uncertainty and the reproducibility of the apparatus compared
to reference analytical equipment, in accordance with EN 60359 and the international standard for
mathematical procedures ISO/IEC Guide 98-3 (GUM).
The tests within 5.3, 5.4 and 5.5 may be performed in any sequence, but 5.6 to 5.9 shall be performed in the
sequence listed in this standard, where relevant. For calculating the uncertainty in measurement during type
testing, it may be necessary to obtain readings of measured values at a higher resolution than that displayed
by the apparatus. If necessary, the manufacturer shall provide the means of obtaining such signals by
modification of the apparatus used for t
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