Industrial-process measurement and control - Data structures and elements in process equipment catalogues - Part 13: Lists of properties (LOP) for Pressure Measuring Equipment for electronic data exchange (IEC 61987-13:2016)

This part of IEC 61987 provides an
• operating list of properties (OLOP) for the description of the operating parameters and the
collection of requirements for a pressure measuring equipment, and
• device lists of properties (DLOP) for a range of pressure measuring equipment types
describing them.
The structures of the OLOP and the DLOP correspond with the general structures defined in
IEC 61987-11 and agree with the fundamentals for the construction of LOPs defined in
IEC 61987-10.
Aspects other than the OLOP, needed in different electronic data exchange processes
described in IEC 61987-10, will be published in IEC 61987-921.
Libraries of properties and of blocks used in the concerned LOPs are listed in Annex C and
Annex D.

Industrielle Leittechnik - Datenstrukturen und -elemente in Katalogen der Prozessleittechnik - Teil 13: Merkmalleisten (ML) für Druckmessgeräte für den elektronischen Datenaustausch (IEC 61987-13:2016)

Mesure et commande dans les processus industriels - Éléments et structures de données dans les catalogues d'équipements de processus - Partie 13: Listes des propriétés (LOP) pour les équipements de mesure de pression pour l'échange électronique de données (IEC 61987-13:2016)

L'IEC 61987-13:2016 décrit une liste de propriétés fonctionnelles (OLOP) pour la description des paramètres fonctionnels et l'ensemble des exigences pour un équipement de mesure de pression, et des listes de propriétés d'appareils (DLOP) pour une gamme de types d'équipements de mesure de pression qui les décrit.

Merjenje in nadzor industrijskega procesa - Strukture podatkov in elementi v katalogih procesne opreme - 13. del: Seznam lastnosti opreme za merjenje tlaka za elektronsko izmenjavo podatkov (IEC 61987-13:2016)

Ta del standarda IEC 61987 zajema
• operativni seznam lastnosti (OLOP) za opis operativnih parametrov in zbirko zahtev glede opreme za merjenje tlaka ter
• sezname lastnosti naprav (DLOP) za več vrst opreme za merjenje tlaka, ki jih opisujejo.
Strukture operativnega seznama lastnosti in seznamov lastnosti naprav ustrezajo splošnim strukturam, opredeljenim v standardu IEC 61987-11, in so skladne s seznami lastnosti, opredeljenimi v standardu IEC 61987-10.
Vidiki, ki niso povezani z operativnim seznamom lastnosti in so potrebni pri različnih procesih izmenjave podatkov, opisanih v standardu IEC 61987-10, bodo objavljeni v standardu IEC 61987-921.
Knjižnice lastnosti in blokov, ki se uporabljajo v zadevnih seznamih lastnosti, so podane v dodatkih C in D.

General Information

Status
Published
Publication Date
06-Nov-2016
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
21-Jun-2016
Due Date
26-Aug-2016
Completion Date
07-Nov-2016

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SLOVENSKI STANDARD
SIST EN 61987-13:2016
01-december-2016
Merjenje in nadzor industrijskega procesa - Strukture podatkov in elementi v

katalogih procesne opreme - 13. del: Seznam lastnosti opreme za merjenje tlaka za

elektronsko izmenjavo podatkov (IEC 61987-13:2016)

Industrial-process measurement and control - Data structures and elements in process

equipment catalogues - Part 13: Lists of properties (LOP) for Pressure Measuring
Equipment for electronic data exchange (IEC 61987-13:2016)
Industrielle Leittechnik - Datenstrukturen und -elemente in Katalogen der
Prozessleittechnik - Teil 13: Merkmalleisten (ML) für Druckmessgeräte für den
elektronischen Datenaustausch (IEC 61987-13:2016)
Mesure et commande dans les processus industriels - Éléments et structures de
données dans les catalogues d'équipements de processus - Partie 13: Listes des
propriétés (LOP) pour les équipements de mesure de pression pour l'échange
électronique de données (IEC 61987-13:2016)
Ta slovenski standard je istoveten z: EN 61987-13:2016
ICS:
01.110 7HKQLþQDGRNXPHQWDFLMD]D Technical product
L]GHONH documentation
25.040.40 Merjenje in krmiljenje Industrial process
industrijskih postopkov measurement and control
35.240.50 Uporabniške rešitve IT v IT applications in industry
industriji
SIST EN 61987-13:2016 en,fr,de

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
SIST EN 61987-13:2016
---------------------- Page: 2 ----------------------
SIST EN 61987-13:2016
EUROPEAN STANDARD EN 61987-13
NORME EUROPÉENNE
EUROPÄISCHE NORM
June 2016
ICS 25.040.40; 35.100.20
English Version
Industrial-process measurement and control - Data structures
and elements in process equipment catalogues - Part 13: Lists of
properties (LOP) for Pressure Measuring Equipment for
electronic data exchange
(IEC 61987-13:2016)

Mesure et commande dans les processus industriels - Industrielle Leittechnik - Datenstrukturen und -elemente in

Éléments et structures de données dans les catalogues Katalogen der Prozessleittechnik - Teil 13: Merkmalleisten

d'équipements de processus - Partie 13: Listes des (ML) für Druckmessgeräte für den elektronischen

propriétés (LOP) pour les équipements de mesure de Datenaustausch
pression pour l'échange électronique de données (IEC 61987-13:2016)
(IEC 61987-13:2016)

This European Standard was approved by CENELEC on 2016-04-27. 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, Former Yugoslav Republic of Macedonia, 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.
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels

© 2016 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.

Ref. No. EN 61987-13:2016 E
---------------------- Page: 3 ----------------------
SIST EN 61987-13:2016
EN 61987-13:2016
European foreword

The text of document 65E/398/CDV, future edition 1 of IEC 61987-13, prepared by SC 65E “Devices

and integration in enterprise systems” of IEC/TC 65 “Industrial-process measurement, control and

automation" was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as EN

61987-13:2016.
The following dates are fixed:
• latest date by which the document has to be (dop) 2017-01-27
implemented at national level by
publication of an identical national
standard or by endorsement
(dow) 2019-04-27
• latest date by which the national
standards conflicting with the
document have to be withdrawn

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.
Endorsement notice

The text of the International Standard IEC 61987-13:2016 was approved by CENELEC as a European

Standard without any modification.

In the official version, for Bibliography, the following notes have to be added for the standards

indicated:
IEC 60079-0:2011 NOTE Harmonized as EN 60079-0:2012.
IEC 60947-5-6:1999 NOTE Harmonized as EN 60947-5-6:2000.
IEC 61298-1:2008 NOTE Harmonized as EN 61298-1:2008.
IEC 61298-2:2008 NOTE Harmonized as EN 61298-2:2008.
IEC 61298-3:2008 NOTE Harmonized as EN 61298-3:2008.
IEC 61360-1 NOTE Harmonized as EN 61360-1.
IEC 61360-2 NOTE Harmonized as EN 61360-2.
IEC 61360-5 NOTE Harmonized as EN 61360-5.
IEC 61784-1:2003 NOTE Harmonized as EN 61784-1:2004.
IEC 61987-1 NOTE Harmonized as EN 61987-1.
ISO 5167-2:2003 NOTE Harmonized as EN ISO 5167-2:2003.
---------------------- Page: 4 ----------------------
SIST EN 61987-13:2016
EN 61804-5:2016
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications

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.

NOTE 1 When an International Publication has been modified by common modifications, indicated by (mod), the relevant

EN/HD applies.

NOTE 2 Up-to-date information on the latest versions of the European Standards listed in this annex is available here:

www.cenelec.eu.
Publication Year Title EN/HD Year
IEC 61360 series Standard data elements types with EN 61360 series
associated classification scheme for
electric items
IEC 61987-10 2009 Industrial-process measurement and EN 61987-10 2009
control - Data structures and elements in
process equipment catalogues - Part 10:
Lists of Properties (LOPs) for Industrial-
Process Measurement and Control for
Electronic Data Exchange - Fundamentals
- - + AC 2011
IEC 61987-11 2012 Industrial-process measurement and EN 61987-11 2012
control - Data structures and elements in
process equipment catalogues -- Part 11:
List of Properties (LOP) of measuring
equipment for electronic data exchange -
Generic structures
---------------------- Page: 5 ----------------------
SIST EN 61987-13:2016
---------------------- Page: 6 ----------------------
SIST EN 61987-13:2016
IEC 61987-13
Edition 1.0 2016-03
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Industrial-process measurement and control – Data structures and elements
in process equipment catalogues –
Part 13: Lists of properties (LOP) for pressure measuring equipment for
electronic data exchange
Mesure et commande dans les processus industriels – Éléments et structures
de données dans les catalogues d’équipements de processus –
Partie 13: Listes des propriétés (LOP) pour les équipements de mesure de
pression pour l'échange électronique de données
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 25.040.40; 35.100.20 ISBN 978-2-8322-3224-8

Warning! Make sure that you obtained this publication from an authorized distributor.

Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agréé.

® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale
---------------------- Page: 7 ----------------------
SIST EN 61987-13:2016
– 2 – IEC 61987-13:2016 © IEC 2016
CONTENTS

FOREWORD ......................................................................................................................... 3

INTRODUCTION ................................................................................................................... 5

1 Scope ............................................................................................................................ 6

2 Normative references..................................................................................................... 6

3 Terms and definitions .................................................................................................... 7

3.1 General ................................................................................................................. 7

3.2 Terms relating to measuring range ........................................................................ 7

3.3 Terms relating to performance ............................................................................... 7

4 General ......................................................................................................................... 9

4.1 Overview............................................................................................................... 9

4.2 Depiction of OLOPs and DLOPs .......................................................................... 10

4.2.1 General ....................................................................................................... 10

4.2.2 Structural roles ............................................................................................ 10

4.2.3 Marking of polymorphic areas ....................................................................... 11

4.3 Examples of DLOP block usage ........................................................................... 13

4.3.1 Block “Digital communication” ...................................................................... 13

4.3.2 Sub-block “Dial indicator” ............................................................................. 15

Annex A (normative) Operating list of properties for pressure measuring equipment ............ 18

Annex B (normative) Device lists of properties for pressure measuring equipment ............... 19

B.1 Absolute/gauge pressure transmitter .................................................................... 19

B.2 Differential pressure transmitter ........................................................................... 19

B.3 Absolute/gauge pressure gauge .......................................................................... 19

B.4 Differential pressure gauge ................................................................................. 19

B.5 Remote seal ........................................................................................................ 20

B.6 Manifold .............................................................................................................. 20

Annex C (normative) Property library .................................................................................. 21

Annex D (normative) Block library for considered device types ............................................ 22

Bibliography ....................................................................................................................... 23

Figure 1 – Structure of a polymorphic area .......................................................................... 11

Table 1 – Example of structure of polymorphic areas in the DLOPs ...................................... 12

Table 2 – Example of structure of polymorphic areas in the OLOP ....................................... 13

Table 3 – Example for “Digital Communication” ................................................................... 13

Table 4 – Example for “Dial indicator” .................................................................................. 15

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SIST EN 61987-13:2016
IEC 61987-13:2016 © IEC 2016 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
INDUSTRIAL-PROCESS MEASUREMENT AND CONTROL –
DATA STRUCTURES AND ELEMENTS IN PROCESS
EQUIPMENT CATALOGUES –
Part 13: Lists of properties (LOP) for pressure
measuring equipment for electronic data exchange
FOREWORD

1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising

all national electrotechnical committees (IEC National Committees). The object of IEC is to promote

international co-operation on all questions concerning standardization in the electrical and electronic fields. To

this end and in addition to other activities, IEC publishes International Standards, Technical Specifications,

Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC

Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested

in the subject dealt with may participate in this preparatory work. International, governmental and non-

governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely

with the International Organization for Standardization (ISO) in accordance with conditions determined by

agreement between the two organizations.

2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international

consensus of opinion on the relevant subjects since each technical committee has representation from all

interested IEC National Committees.

3) IEC Publications have the form of recommendations for international use and are accepted by IEC National

Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC

Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any

misinterpretation by any end user.

4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications

transparently to the maximum extent possible in their national and regional publications. Any divergence

between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in

the latter.

5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity

assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any

services carried out by independent certification bodies.

6) All users should ensure that they have the latest edition of this publication.

7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and

members of its technical committees and IEC National Committees for any personal injury, property damage or

other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and

expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC

Publications.

8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is

indispensable for the correct application of this publication.

9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of

patent rights. IEC shall not be held responsible for identifying any or all such patent rights.

International Standard IEC 61987-13 has been prepared by subcommittee 65E: Devices and

integration in enterprise systems, of IEC technical committee 65: Industrial-process

measurement, control and automation.
The text of this standard is based on the following documents:
CDV Report on voting
65E/398/CDV 65E/471/RVC

Full information on the voting for the approval of this standard can be found in the report on

voting indicated in the above table.
---------------------- Page: 9 ----------------------
SIST EN 61987-13:2016
– 4 – IEC 61987-13:2016 © IEC 2016

This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.

A list of all parts in the IEC 61987, published under the general title Industrial-process

measurement and control – Data structures and elements in process equipment catalogues,

can be found on the IEC website.

The committee has decided that the contents of this publication will remain unchanged until

the stability date indicated on the IEC website under "http://webstore.iec.ch" in the data

related to the specific publication. At this date, the publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
---------------------- Page: 10 ----------------------
SIST EN 61987-13:2016
IEC 61987-13:2016 © IEC 2016 – 5 –
INTRODUCTION

The exchange of product data between companies, business systems, engineering tools, data

systems within companies and, in the future, control systems (electrical, measuring and

control technology) can run smoothly only when both the information to be exchanged and the

use of this information has been clearly defined.

Prior to this standard, requirements on process control devices and systems were specified by

customers in various ways when suppliers or manufacturers were asked to quote for suitable

equipment. The suppliers in their turn described the devices according to their own

documentation schemes, often using different terms, structures and media (paper, databases,

CDs, e-catalogues, etc.). The situation was similar in the planning and development process,

with device information frequently being duplicated in a number of different information

technology (IT) systems.

Any method that is capable of recording all existing information only once during the planning

and ordering process and making it available for further processing, gives all parties involved

an opportunity to concentrate on the essentials. A precondition for this is the standardization

of both the descriptions of the objects and the exchange of information.

This standard series proposes a method for standardization which will help both suppliers and

users of measuring equipment to optimize workflows both within their own companies and in

their exchanges with other companies. Depending on their role in the process, engineering

firms may be considered here to be either users or suppliers.

The method specifies measuring equipment by means of blocks of properties. These blocks

are compiled into lists of properties (LOPs), each of which describes a specific equipment

(device) type. This standard series covers both properties that may be used in an inquiry or a

proposal and detailed properties required for integration of the equipment in computer

systems for other tasks.

IEC 61987-10 defines structure elements for constructing lists of properties for electrical and

process control equipment in order to facilitate automatic data exchange between any two

computer systems in any possible workflow, for example engineering, maintenance or

purchasing workflow and to allow both the customers and the suppliers of the equipment to

optimize their processes and workflows. IEC 61987-10 also provides the data model for

assembling the LOPs.

IEC 61987-11 specifies the generic structure for operating and device lists of properties

(OLOPs and DLOPs). It lays down the framework for further parts of IEC 61987 in which

complete LOPs for device types measuring a given physical variable and using a particular

measuring principle will be specified. The generic structure may also serve as a basis for the

specification of LOPs for other industrial-process control instrument types such as control

valves and signal processing equipment.

IEC 61987-13 concerns pressure measuring equipment. It provides one operating LOP for all

types of pressure transmitter or pressure gauge which can be used, for example, as a request

for various sorts of quotation. The DLOPs for the various pressure transmitter and gauge

types provided in this part of IEC 61987 can be used in very different ways in the computer

systems of equipment manufacturers and suppliers, in CAE and similar systems of EPC

contractors and other engineering companies and especially different plant maintenance

systems of the plant owners. The OLOP and the DLOPs provided correspond to the guidelines

specified in IEC 61987-10 and IEC 61987-11.
---------------------- Page: 11 ----------------------
SIST EN 61987-13:2016
– 6 – IEC 61987-13:2016 © IEC 2016
INDUSTRIAL-PROCESS MEASUREMENT AND CONTROL –
DATA STRUCTURES AND ELEMENTS IN PROCESS
EQUIPMENT CATALOGUES –
Part 13: Lists of properties (LOP) for pressure
measuring equipment for electronic data exchange
1 Scope
This part of IEC 61987 provides an

• operating list of properties (OLOP) for the description of the operating parameters and the

collection of requirements for a pressure measuring equipment, and

• device lists of properties (DLOP) for a range of pressure measuring equipment types

describing them.

The structures of the OLOP and the DLOP correspond with the general structures defined in

IEC 61987-11 and agree with the fundamentals for the construction of LOPs defined in

IEC 61987-10.

Aspects other than the OLOP, needed in different electronic data exchange processes

described in IEC 61987-10, will be published in IEC 61987-92 .

Libraries of properties and of blocks used in the concerned LOPs are listed in Annex C and

Annex D.
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.

IEC 61360-1 (all parts), Standard data elements types with associated classification scheme

for electric items – Part 1: Definitions – Principles and methods

IEC 61987-10:2009, Industrial-process measurement and control – Data structures and

elements in process equipment catalogues – Part 10: List of Properties (LOPs) for Industrial-

Process Measurement and Control for Electronic Data Exchange – Fundamentals

IEC 61987-11:2012, Industrial-process measurement and control – Data structures and

elements in process equipment catalogues – Part 11: List of Properties (LOP) of measuring

equipment for electronic data exchange – Generic structures
______________
Under consideration.
---------------------- Page: 12 ----------------------
SIST EN 61987-13:2016
IEC 61987-13:2016 © IEC 2016 – 7 –
3 Terms and definitions
3.1 General

For the purposes of this document, the terms and definitions given in IEC 61987-10 and

IEC 61987-11, as well as the following apply.
3.2 Terms relating to measuring range
3.2.1
measuring range

range defined by two values of the measurand, or quantity to be supplied, within which the

limits of uncertainty of the measuring instrument are specified

Note 1 to entry: The measuring range is defined by two values, the lower range limit (LRL) and the upper range

limit (URL).

Note 2 to entry: Where a device can be adjusted to measure intervals within the specified measuring range or

offers fixed sub-ranges, the sub-range is defined by two values, the lower range-end value (LRV) and the upper

range-end value (URV).
[SOURCE: IEC 60050-311, 311-03-12, modified (notes added)]
3.2.2
span

algebraic difference between the upper and lower end values of the set measuring range

Note 1 to entry: If the device is set up to measure over the specified measuring range, then the span is the

algebraic difference between the upper range limit and the lower range limit: this value is often called the maximum

span.
[SOURCE: IEC 60050-311, 311-03-13 modified (“set” and note added)]
3.2.3
turndown ratio
ratio of the maximum span to the set span
3.2.4
zero adjustment

maximum value by which a pressure measurement can be offset to provide a reading of zero

on an output
3.3 Terms relating to performance
3.3.1
influence of alternating bilateral overpressure

maximum deviation (modulus) of zero pressure reading after applying successively the

maximum positive and then the maximum negative allowed overpressure successively to both

sides of a differential pressure transmitter at reference temperature
3.3.2
influence of alternating unilateral overpressure

maximum deviation (modulus) of zero pressure reading after applying successively the

maximum positive and then the maximum negative allowed overpressure to one side of a

differential pressure transmitter at reference temperature
3.3.3
influence of ambient temperature

for a pressure transmitter, combined influence on zero and span caused by a change in

ambient temperature over a given range, expressed as percentage of URL
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SIST EN 61987-13:2016
– 8 – IEC 61987-13:2016 © IEC 2016

Note 1 to entry: Manufacturers of pressure transmitters currently express this influence in one of two ways:

– a change in ambient temperature over the range of –10 °C to + 60 °C,

– a change in ambient temperature of + 28 °C (+ 82,5 °F) with respect to reference ambient temperature.

Note 2 to entry: The corresponding properties are to be found in the CDD .
3.3.4
influence of static pressure on span

influence of static pressure applied on both sides of a differential pressure meter on span per

given pressure interval

Note 1 to entry: Manufacturers of pressure transmitters currently express this influence in one of two ways:

– per 100 bar,
– per 69 bar (1 000 psi).
Note 2 to entry: The corresponding properties are to be found in the CDD.
3.3.5
influence of static pressure on zero

influence of static pressure applied on both sides of a differential pressure meter on zero per

given pressure interval

Note 1 to entry: Manufacturers of pressure transmitters currently express this influence in one of two ways:

– per 100 bar,
– per 69 bar (1 000 psi).
Note 2 to entry: The corresponding properties are to be found in the CDD.
3.3.6
non-conformity

deviation from ideal behaviour for devices that have a non-linear input/output relationship,

determined from the curve plotted using the overall average of corresponding upscale and

downscale errors

Note 1 to entry: Non-conformity can be calculated and expressed in one of three ways:

– independent: line positioned so as to minimize the maximum deviation,

– terminal-based: line positioned so as to coincide with the actual characteristic curve at the upper and lower

range values,

– zero-based: line positioned so as to coincide with the actual characteristic curve at the lower range-value.

Note 2 to entry: The corresponding properties are to be found in the CDD.
3.3.7
non-linearity

deviation from ideal behaviour for devices that have a linear input/out relationship, determined

from the curve plotted using the overall average of corresponding upscale and downscale

errors

Note 1 to entry: Non-linearity can be calculated and expressed in one of three ways:

– independent: line positioned so as to minimize the maximum deviation,

– terminal-based: line positioned so as to coincide with the actual characteristic curve at the upper and

lower range-values,

– zero-based: line positioned so as to coincide with the actual characteristic curve at the lower range-value.

Note 2 to entry: The corresponding properties are to be found in the CDD.
______________
CDD: Common Data Dictionary.
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SIST EN 61987-13:2016
IEC 61987-13:2016 © IEC 2016 – 9 –
3.3.8
span error

difference between the actual span and the maximum span when the input is at the upper

range limit, expressed as percentage of maximum span
3.3.9
span error for bilateral application of static pressure

difference between the actual span and the maximum span, expressed as percentage of

maximum span, when the same static pressure is applied on both sides of a differential

pressure transmitter
3.3.10
total error

sum of the total performance and the long term drift per annum, expressed as percentage of

span

Note 1 to entry: Manufacturers currently express total performance in several different ways, see notes to 3.3.11.

Note 2 to entry: The corresponding properties are to be found in the CDD.
3.3.11
total performance

square root of (non-linearity)² + (influence of ambient temperature)² + (influence of static

pressure on span)², expressed as percentage of span

Note 1 to entry: Manufacturers of pressure transmitters currently express total performance in one of two ways:

– for a change in ambient temperature over the range of –10 °C to + 60 °C and static pressure per 100 bar,

– for a change in ambient temperature of ± 28 °C (± 82,5 °F) with respect to reference ambient temperature and

static pressure per 69 bar (1 000 psi).
Note 2 to entry: Some manufactures include the (influence of s
...

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