EN 50379-1:2012

SLOVENSKI STANDARD
01-junij-2012
Specifikacija za prenosne električne naprave za merjenje parametrov dimnih
plinov grelnih naprav - 1. del: Splošne zahteve in preskusne metode
Specification for portable electrical apparatus designed to measure combustion flue gas
parameters of heating appliances - Part 1: General requirements and test methods
Anforderungen an tragbare elektrische Geräte zur Messung von
Verbrennungsparametern von Heizungsanlagen - Teil 1: Allgemeine Anforderungen und
Prüfverfahren
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 1: Prescriptions générales et méthodes d'essai
Ta slovenski standard je istoveten z: EN 50379-1:2012
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 50379-1
NORME EUROPÉENNE
April 2012
EUROPÄISCHE NORM
ICS 13.320 Supersedes EN 50379-1:2004

English version
Specification for portable electrical apparatus designed to measure
combustion flue gas parameters of heating appliances -
Part 1: General requirements and test methods

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 1: Allgemeine Anforderungen und
Partie 1: Prescriptions générales et Prüfverfahren
méthodes d'essai
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 50379-1:2012 E
Contents
Foreword . 4
Introduction . 5
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 7
4 General requirements . 9
4.1 G ener al . 9
4.2 Construction . 9
4.3 Labelling and instructions . 12
5 Test methods . 13
5.1 General requirements for tests . 13
5.2 Normal conditions for tests . 14
5.3 Mechanical tests . 16
5.4 Electrical and software tests . 18
5.5 Tests with test gases . 18
5.6 Tests with real flue gases . 20
5.7 Calculated values . 22
5.8 Temperature . 23
5.9 Pressure . 24
Annex A (informative) Standard combustion analysis procedures . 25
A.1 Combustion analysis in Germany . 25
A.2 Combustion analysis in the United Kingdom. 26
A.3 Combustion analysis in Italy . 27
A.4 Combustion analysis in Switzerland . 29
A.5 Combustion analysis — generic . 31
Annex B (normative) Real flue gas measurements – Methodology and test methods . 32
Annex C (normative) Standard methods for determining measuring uncertainty . 35
C.1 Determination of the analytic function . 35
C.2 Determination of reproducibility . 35
Bibliography . 36
Figure
Figure B.1 – CO, NO and SO variation with air ratio . 34
Tables
Table 1 – Requirements for accuracy . 11
Table 2 – Test gas mixtures for O and/or CO sensors . 14
2 2
Table 3 – Test gas mixtures for low range CO sensors . 14
Table 4 – Test gas mixtures for medium range CO sensors . 15
Table 5 – Test gas mixture for high range CO sensors . 15
Table 6 – Test gas mixtures for NO sensors . 15
Table 7 – Test gas mixtures for SO sensors . 15
Table A.1 – Legal requirements for maximum waste gas loss . 25

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Table A.2 – Parameters for calculation in Germany . 26
Table A.3 – Current standards for combustion efficiencies of domestic gas appliances in the
United Kingdom, based on dry air-free measurements . 27
Table A.4 – Legal requirements for combustion efficiency η in Italy . 28
Table A.5 – Parameters for heat loss calculation in Italy (reference UNI 10389) . 28
Table B.1 – Minimum numbers of measurements . 32

Foreword
This document (EN 50379-1:2012) has been prepared by CLC/TC 216 "Gas detectors".
The following dates are fixed:

(dop) 2013-03-19
• latest date by which this document h
as 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 50379-1:2004.

— 4.2.12 and 5.7.4 consider 15 min. average concentration for solid fuels;

— 4.3.3 for instructions was amended;

— 5.3.6 for flow indicators was amended;

— 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;

— 5.9.1 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.

____________
- 5 - EN 50379-1:2012
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 concentrations 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 (see Annex A).
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,
and EN 50379-2 therefore includes maximum values for measuring uncertainty. 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. The determination of measuring uncertainty is described in
Annex C.
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 whether 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.

1 Scope
This European Standard covers apparatus for measuring gas concentrations and other combustion
parameters, as used in the installation and maintenance of heating appliances. Such apparatus may
be used for testing the performance of appliances for different types of fuels, either by the installer,
maintenance engineer or inspector.
The apparatus may consist of different functional modules, which may be tested separately for
complying with this standard and will be combined in different ways according to the different
applications. This part 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 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.
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 may apply.
NOTE 2 Apparatus may contain functional modules which 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
...