IEC PAS 62419:2005
(Main)Control technology - Rules for the designation of measuring instruments
Control technology - Rules for the designation of measuring instruments
is applicable to measurement techniques. It defines rules for the unambiguous designation of different types of measuring instruments and of measuring instrument features.
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PUBLICLY
IEC
AVAILABLE
PAS 62419
SPECIFICATION
First edition
Pre-Standard
2005-06
Control technology –
Rules for the designation
of measuring instruments
Reference number
IEC/PAS 62419:2005(E)
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PUBLICLY
IEC
AVAILABLE
PAS 62419
SPECIFICATION
First edition
Pre-Standard
2005-06
Control technology –
Rules for the designation
of measuring instruments
IEC 2005 Copyright - all rights reserved
No part of this publication may be reproduced or utilized in any form or by any means, electronic or
mechanical, including photocopying and microfilm, without permission in writing from the publisher.
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International Electrotechnical Commission
Международная Электротехническая Комиссия
For price, see current catalogue
– 2 – PAS 62419 © IEC:2005(E)
CONTENTS
FOREWORD.3
INTRODUCTION.4
1 Scope and object.5
2 Normative references .5
3 Terms and definitions .6
4 Designation rules.7
4.1 General rules.7
4.2 Designation rules for measurement standards .7
4.3 Designation rules for measuring instruments with direct output .8
4.4 Designation rules for transmitting measuring instruments .8
4.5 Designation rules for measuring assemblies.9
4.6 Examples of names of measuring instruments for complex measuring tasks.9
Annex A (informative) Examples of names to be avoided and corresponding
recommended names .10
Bibliography .11
PAS 62419 © IEC:2005(E) – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
CONTROL TECHNOLOGY –
RULES FOR THE DESIGNATION OF MEASURING INSTRUMENTS
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
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A PAS is a technical specification not fulfilling the requirements for a standard but made
available to the public.
IEC-PAS 62419 has been processed by IEC technical committee 65: Industrial-process
measurement and control.
The text of this PAS is based on the This PAS was approved for
following document: publication by the P-members of the
committee concerned as indicated in
the following document
Draft PAS Report on voting
65/353/NP 65/358/RVN
Following publication of this PAS, which is a pre-standard publication, the technical committee
or subcommittee concerned will transform it into an International Standard.
This PAS shall remain valid for an initial maximum period of three years starting from
2005-06. The validity may be extended for a single three-year period, following which it shall
be revised to become another type of normative document or shall be withdrawn.
– 4 – PAS 62419 © IEC:2005(E)
INTRODUCTION
During the period from 1920 to 1960, there was a fundamental change in the comprehension and
usage of physical quantities, which was particularly promoted by the works of Julius Wallot published
between 1922 and 1953. In this process, the various systems of physical units and the usage of
numerical equations were replaced by the SI units (see ISO 1000) and the usage of quantity
equations, so the quantities were no longer linked to certain units.
This development culminated in the publishing of the first edition of the German standard DIN 1313 in
1931 and the resolutions of the 10th general conference of weights and measures in 1954. Since then,
it has been considered incorrect to address a quantity by its unit.
PAS 62419 © IEC:2005(E) – 5 –
CONTROL TECHNOLOGY –
RULES FOR THE DESIGNATION OF MEASURING INSTRUMENTS
1 Scope and object
This Publicly Available Specification (PAS) is applicable to measurement techniques. It
defines rules for the unambiguous designation of different types of measuring instruments and
of measuring instrument features.
The scope of this PAS is
(a) the adaptation of the designations of measuring instruments and of measuring
instrument features to the state of science;
(b) the designation of measuring instruments and of measuring instrument features by the
measuring quantity or by the measuring task instead of the unit;
(c) the avoidance of other secondary components than “…measuring instrument” in
compound names at least in the far future in the English language;
(d) the avoidance of other secondary components than those corresponding to “measuring
instrument” in compound names in languages other than English.
In view of this, measuring instruments should not be addressed by the unit of the measured
quantity but only by the measured quantity or the measuring task itself.
In the compound names of measuring instruments, the use of secondary components
(“.gauge”, “.meter”, “.indicator”) other than “.measuring instrument” is inconsistent with
the objective of standardization (namely uniformity), especially since the meaning of these
secondary components is no more descriptive than that of the standard component or their
meaning is already contained in the first element of the compound name (for example, in the
case of “water meter”).
Therefore, the use of secondary components other than “…measuring instrument” should be
avoided in the English language at least in the far future.
In addition, the use of secondary components other than those corresponding to “…measuring
instrument” should be avoided in languages other than English.
Finally, the ambiguous component “.sensor” should not be used. In its place, one of the
secondary components “.detector”, “.transformer”, “.transducer”, “.measuring instrument”
or “.measuring chain” should be used, depending on the task of the functional unit being
named. The definitions for detector (detecting device), transformer, and transducer are given
in IEC 60050-351.
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.
IEC 60050-351, International Electrotechnical Vocabulary – Part 351: Control technology
ISO 31 (all parts), Quantities and units
—————————
Edition 3 to be published.
– 6 – PAS 62419 © IEC:2005(E)
ISO 1000, SI units and recommendations for the use of their multiples and of certain other units
DIN 1313, Größen (Quantities) (no corresponding international standard)
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
measuring instrument
device intended to be used to make measurements, alone or in conjunction with
supplementary devices
[IEV 311-03-01]
NOTE 1 Material measures are also measuring instruments.
NOTE 2 An instrument is also a measuring instrument if its output is transmitted, converted, processed or stored
and cannot be perceived directly by the observer.
NOTE 3 The designation measuring instrument without any supplementary designation components should only
be used as a generic term referring to all types of measuring instrument. In compound expressions, the term
“measuring instrument” should only be used to signify a measuring instrument with direct output (see 3.6).
EXAMPLE The measuring instruments and measuring systems catalogue (also contains, for example, signal
generators and measuring assemblies)
3.2
measuring device
entirety of all measuring instruments and supplementary devices used for obtaining a
measurement result
3.3
measuring system
complete set of measuring instruments and other equipment assembled to carry out specific
measurements
[IEV 311-03-06]
3.4
measuring chain
series of elements of a measuring instrument or system that constitutes the path of the
measurement signal from the input to the output
NOTE Example: set of transducers and connecting elements between one or more measuring instruments placed
between the sensor, which is the first element in the chain, and the last element of the chain; for example, the
indicating, recording or storage device.
[IEV 311-03-07]
3.5
(measurement) standard
material measure, measuring instrument, reference material or measuring system intended to
define, r
...
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