IEC 61003-1:2016

IEC 61003-1 ®
Edition 3.0 2016-06
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Industrial-process control systems – Instruments with analogue inputs and two-
or multi-position outputs –
Part 1: Methods for evaluating performance

Systèmes de commande de processus industriels – Instruments avec entrées
analogiques et sorties à deux ou plusieurs positions –
Partie 1: Méthodes d'évaluation des performances
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IEC 61003-1 ®
Edition 3.0 2016-06
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Industrial-process control systems – Instruments with analogue inputs and two-

or multi-position outputs –
Part 1: Methods for evaluating performance

Systèmes de commande de processus industriels – Instruments avec entrées

analogiques et sorties à deux ou plusieurs positions –

Partie 1: Méthodes d'évaluation des performances

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 25.040.40; 35.240.50 ISBN 978-2-8322-3406-8

– 2 – IEC 61003-1:2016 © IEC 2016
CONTENTS
FOREWORD . 4
INTRODUCTION . 6
1 Scope . 7
2 Normative references. 7
3 Terms and definitions . 8
4 General conditions for tests . 9
4.1 Documentary information . 9
4.1.1 General reference documents. 9
4.1.2 Collect data . 10
4.2 Electrical safety . 10
4.3 Installation . 10
4.4 Supply conditions . 10
5 General testing procedures and precautions . 10
5.1 Checking of calibration made prior to delivery . 10
5.2 Set point . 10
5.3 Differential gap . 11
6 Test methods and procedures . 11
6.1 Tests under reference conditions . 11
6.1.1 Switching accuracy related factors. 11
6.1.2 Mean switching point . 12
6.1.3 Set point . 12
6.2 Tests for the effects of influence quantities . 12
6.2.1 Ambient temperature . 12
6.2.2 Humidity . 13
6.2.3 Vibrations . 13
6.2.4 Shock, drop and topple . 14
6.2.5 Mounting position . 14
6.2.6 Over-range . 14
6.2.7 Output load effects . 14
6.2.8 Supply voltage and frequency variations . 14
6.2.9 Short-term supply voltage interruptions . 14
6.2.10 Fast transient/burst immunity requirements . 15
6.2.11 Supply pressure variations . 15
6.2.12 Common mode interference. 15
6.2.13 Normal mode interference (series mode) . 15
6.2.14 Earthing . 15
6.2.15 Magnetic field effects . 15
6.2.16 Electromagnetic field . 16
6.2.17 Electrostatic discharge (ESD) . 16
6.2.18 Effect of open-circuited and short-circuited input . 16
6.2.19 Effect of open-circuited and short-circuited output . 16
6.2.20 Effect of process medium temperature . 16
6.2.21 Atmospheric pressure effects . 17
6.2.22 Start-up drift . 17
6.2.23 Accelerated operational life test . 17
6.3 Other tests . 17

6.3.1 Transient response of a two-position output . 17
6.3.2 Indication of the measured value . 18
6.3.3 Adjustable differential gap . 18
6.3.4 Dielectric strength . 18
6.3.5 Insulation resistance . 19
7 Multi-position output . 19
7.1 Action . 19
7.2 Test . 19
7.2.1 Characteristics of the multi-position output . 19
7.2.2 Mutual influence of pairs of switching points . 19
7.2.3 Determination of switching range . 19
8 General observations . 19
8.1 Protective finishes . 19
8.2 Tools and equipment . 19
9 Test report and summary of tests . 20
10 Partial evaluation . 23
Bibliography . 24

Figure 1 – Action of two-position output . 8
Figure 2 – Action of three-position output . 9

Table 1 – An example of a report (1 of 4) . 20

– 4 – IEC 61003-1:2016 © IEC 2016
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
INDUSTRIAL-PROCESS CONTROL SYSTEMS – INSTRUMENTS WITH
ANALOGUE INPUTS AND TWO- OR MULTI-POSITION OUTPUTS –

Part 1: Methods for evaluating performance

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
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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
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4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
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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 61003-1 has been prepared by subcommittee SC 65B:
Measurement and control devices, of IEC technical committee TC 65: Industrial-process
measurement, control and automation.
This third edition cancels and replaces the second edition published in 2004. This edition
constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
a) use of the term “two-position output” instead of “two-state instrument” (see 3.2);
b) use of the term “differential gap” instead of “switching differential” (see 3.4);
c) use of “fast transient/burst immunity requirements” instead of “power supply transient
overvoltages”, and revision of the test method (see 6.2.10);

d) deletion of 6.2.12 “common mode interference” and 6.2.13 “normal mode interference
(series mode) ”tests of the previous edition;
e) use of the term “electromagnetic field” instead of “radiated electromagnetic interference”,
the test method remained the same (see 6.2.16);
f) use of the term “dielectric strength” instead of “isolation test”, and revision of the reference
(see 6.3.4);
g) deletion of Subclauses “8.2 Design features”, “10.1 Routine maintenance and adjustment”
and “10.2 Repair” of the previous edition.
The text of this standard is based on the following documents:
FDIS Report on voting
65B/1040/FDIS 65B/1050/RVD
Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
A list of all parts of the IEC 61003 series, published under the general title Industrial-process
control systems – Instruments with analogue inputs and two or multi-position outputs, 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.
– 6 – IEC 61003-1:2016 © IEC 2016
INTRODUCTION
The methods of evaluation specified in this part of IEC 61003 are intended for use by
manufacturers to determine the performance of their products and by users, or independent
testing establishments, to verify the manufacturer's performance specifications.
The test conditions in this standard, for example the range of ambient temperatures and
power supply, represent those, which commonly arise in use.
The tests specified in this standard are not necessarily sufficient for instruments specifically
designed for unusually arduous duties. Conversely, a restricted series of tests may be
suitable for instruments designed to perform within a more limited range of conditions.
It will be appreciated that the closest communication should be maintained between the
evaluating body and the manufacturer. Note should be taken of the manufacturer's
specifications for the instrument, when the test program is being decided, and the
manufacturer should be invited to comment on both the test program and the results. His
comments on the results should be included in any report produced by the testing
organization.
INDUSTRIAL-PROCESS CONTROL SYSTEMS – INSTRUMENTS WITH
ANALOGUE INPUTS AND TWO- OR MULTI-POSITION OUTPUTS –

Part 1: Methods for evaluating performance

1 Scope
This part of IEC 61003 is applicable to pneumatic and electric industrial-process instruments
or control device using measured values that are continuous signals either a mechanical
(position, force, etc.) or a standard electric signal.
These instruments or process control systems modules may be used as controllers or as
switches for alarm and other similar purposes.
Electronic product safety issues may impact only a few products covered by this document.
Consequently this document does not address such safety issues.
This standard is intended to specify uniform terminologies and testing methods for
performance evaluation of industrial-process instruments or process control systems modules
with analogue measured values and two- or multi-position outputs.
Considerations other than the performances are listed in Clause 10.
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 60050 (all parts), International Electrotechnical Vocabulary (available at
)
IEC 60050-300, International Electrotechnical Vocabulary – Electrical and electronic
measurements and measuring instruments (comprising Parts 311, 312, 313 and 314)
IEC 60050-351, International Electrotechnical Vocabulary – Part 351: Control technology
IEC 61298-1:2008, Process measurement and control devices – General methods and
procedures for evaluating performance – Part 1: General considerations
IEC 61298-2:2008, Process measurement and control devices – General methods and
procedures for evaluating performance – Part 2: Tests under reference conditions
IEC 61298-3:2008, Process measurement and control devices – General methods and
procedures for evaluating performance – Part 3: Tests for the effects of influence quantities
IEC 61298-4, Process measurement and control devices – General methods and procedures
for evaluating performance – Part 4: Evaluation report content

– 8 – IEC 61003-1:2016 © IEC 2016
3 Terms and definitions
For the purposes of this document, the terms and definitions given in IEC 60050-300,
IEC 60050-351, IEC 61298-2 and the following apply.
3.1
switching point
x
i
measured value (with the input moving either upscale or downscale), at which the output (y)
changes from one position to another
3.2
two-position output
output variable which may assume one of two discrete values
EXAMPLE
Action illustrated in Figure 1, where x is the value of the input variable and y is the value of the output signal.
The two-position output, having one pair of switching points x and x (x greater than x ) has the relationships:
1 2 2 1
y , x< x

1 1
y=

y , x> x
 2 2
For x < x < x , y may be either y or y .
1 2 1 2
It is y if the last switching point crossed by x was x .
1 1
It is y if the last switching point crossed by x was x .
2 2
y
X
sd
y
y
x x x
x
1 m 2
IEC
Figure 1 – Action of two-position output
3.3
multi-position output
output variable which may assume any of a set of discrete values
EXAMPLE
A multi-position output has n possible output values and n-1 pairs of switching points, (see Figure 2, a three-
position output). Each pair of switching points may be investigated by the procedure given for the two-position
output.
y
X X
sd sd
1 2
y
y = y
12 21
y
x x x x x x
x
11 m 12 21 m 22
1 2
X
sr
IEC
Figure 2 – Action of three-position output
3.4
differential gap
X
sd
absolute value of difference between the switching point x with the measured value moving
upscale and the switching point x with the measured value moving downscale
SEE: Figure 1 and Figure 2.
3.5
mean switching point
x
m
mean of the values of upscale and downscale switching points
SEE: Figure 1 and Figure 2.
3.6
switching range
X
sr
in a multi-position output, range of measured values corresponding to the extreme switching
points
SEE: Figure 2.
3.7
set point
w
or x as specified) should occur
point value at which it is desired that switching (at x
2 1
4 General conditions for tests
4.1 Documentary information
4.1.1 General reference documents
For the purpose of this standard, the general test conditions (e.g. environmental test
conditions, supply conditions, load conditions, mounting position, externally induced

– 10 – IEC 61003-1:2016 © IEC 2016
vibrations, external mechanical constraints, and delivery of the instrument) specified in
Clause 6 of IEC 61298-1:2008 apply, together with Clause 4 of this part of IEC 61003.
The general testing procedures and precautions, specified in Clause 7 of IEC 61298-1:2008,
shall be applied, together with Clause 5 of this part of IEC 61003.
The tests general methods and procedures – if any – specified in IEC 61298-2 and
IEC 61298-3 apply, together with Clause 6 of this part of IEC 61003.
4.1.2 Collect data
The manufacturer shall supply to the evaluating body information for installation,
commissioning, operation, routine maintenance and repair of the instrument. A spare parts list,
together with a recommendation of the spare parts to be held in stock, shall be supplied. The
language of written information for installation should be primary or accepted language of the
country where implemented.
Installation and use guidelines including diagrams, operation instructions, spare parts
requirements, and all specifications should be clearly stated.
Additionally, any certificates indicating the degree of intrinsic safety and flameproofing, etc. of
electrically powered instruments should be listed. This information should give details of the
certificate numbers and the degree of protection provided.
Procedures for installation, routine maintenance and adjustment, repairs and overhaul should
be examined by the actual performance of the required operation. This should be performed
in accordance with the manufacturer's instructions, so that an evaluation of the instructions
can be carried out concurrently.
4.2 Electrical safety
Electrically powered instruments should be examined to determine the degree to which their
design protects them against accidental electric shock.
4.3 Installation
The instrument should be installed and set to work according to the manufacturer's
instructions, taking account of the various applications which may be met in practice and
which require different procedures.
4.4 Supply conditions
Tolerances on supply conditions for mains supplied equipment are given in 6.2.2 of
IEC 61298-1:2008. For instruments with self-contained power supplies (e.g. battery-powered)
the tolerances are different and shall be agreed.
5 General testing procedures and precautions
5.1 Checking of calibration made prior to delivery
The input-output characteristic that shall be checked (see 7.6 of IEC 61298-1:2008) is the
values of the switching points x and x found during the calibration (if any) made prior to
1 2
delivery.
5.2 Set point
Except where otherwise specified, the set point shall be set to the midscale value or, where
no scale is provided, to the middle of the effective range of adjustment.

5.3 Differential gap
Except where otherwise specified, if the differential gap X is adjustable, it shall be set to the
sd
midscale value or, where no scale is provided, to the middle of the effective range of
adjustment.
6 Test methods and procedures
6.1 Tests under reference conditions
6.1.1 Switching accuracy related factors
6.1.1.1 General
The general test description refers to 4.1.7 of IEC 61298-2:2008.
The input measured value x shall be varied slowly at least five times in each direction through
its entire range. By observation of the output, the values of points x and x and their average
1 2
shall be determined.
For each cycle, the individual differential gap｜x – x ｜shall be noted.
1 2
6.1.1.2 Inaccuracy of switching points
The general test description refers to 4.1.7.1 of IEC 61298-2:2008.
Switching point inaccuracy is determined by selecting the greatest positive and negative
deviations of any measured value of x and x , of any cycle, from the set point w for
1 2
increasing and decreasing inputs.
This should be reported in percent of nominal span of measured value.
6.1.1.3 Non-repeatability of switching points
The general test description refers to 4.1.7.6 of IEC 61298-2:2008.
Non-repeatability shall be computed observing the range, in percent of nominal span of
measured value, among all x values and among all x values.
1 2
The maximum value, from either the x range or the x range, is reported as non-repeatability.
1 2
6.1.1.4 Inaccuracy of differential gap
The general test description refers to 4.1.7.1 of IEC 61298-2:2008.
The differential gap X is calculated by subtracting the average value of x from the average
sd 1
value of x (see 6.1.1).
Differential gap inaccuracy is determined by selecting the greatest positive and negative
deviations of any measured value of the individual differential gaps – calculated in each of the
five cycles – from the X .
sd
Reporting this in percent of the nominal span of measured value.
6.1.1.5 Non-repeatability of differential gap
The general test description refers to 4.1.7.6 of IEC 61298-2:2008.

– 12 – IEC 61003-1:2016 © IEC 2016
Non-repeatability shall be computed calculating the differences, in percent of the nominal
span of measured value, among all individual differential gap values noted in 6.1.1.
The maximum of those values is reported as non-repeatability of differential gap.
6.1.2 Mean switching point
Mean switching point x is calculated as the mean of the average values of x and x (see
m 1 2
6.1.1.1).
6.1.3 Set point
6.1.3.1 Set point adjustable and measurable or indicated
The general test description refers to 4.1.7.1 and 4.1.7.6 of IEC 61298-2:2008.
Determine values of x , x and X , and their accuracy-related factors, in accordance with the
1 2 sd
test procedures in 6.1.1.1, at least for values of w of 10 %, 50 % and 90 %, the 50 % value
being taken last.
Determine values of x , in accordance with the test procedures in 6.1.2.
m
The inaccuracy of set point setting is determined by selecting the greatest positive and
negative deviations of any measured value of x from the ideal set-point value for each cycle
m
and for each set point.
6.1.3.2 Set point adjustable but not indicated
The general test description refers to 4.1.7.1 and 4.1.7.6 of IEC 61298-2:2008.
Determine values of x , x and X , and their accuracy-related factors, in accordance with the
1 2 sd
test procedures in 6.1.1.1, and values of x , in accordance with the test procedures in 6.1.2.
m
Make this test, for at least three values of w, approximately evenly spaced over the effective
range of adjustment, the approximately mid-value being taken last.
It is not necessary to determine x – w in this case.
m
6.1.3.3 Set point not adjustable
The general test description refers to 4.1.7.1 and 4.1.7.6 of IEC 61298-2:2008.
Determine values of x , x and X , and their accuracy-related factors, in accordance with the
1 2 sd
test procedures in 6.1.1.1, and values of x , in accordance with the test procedures in 6.1.2.
m
The inaccuracy of set point setting is determined by selecting the greatest positive and
negative deviations of any measured value of x from the value of w declared by the
m
manufacturer. Reporting that in percent of the nominal span of measured value.
For two-position output with non-symmetrically adjustable differential gap (e.g. instruments
where x or x instead of x is intended to be equal to w), the value of x – w or x – w instead
1 2 m 1 2
of x – w should be taken into account.
m
6.2 Tests for the effects of influence quantities
6.2.1 Ambient temperature
The general test description refers to Clause 5 of IEC 61298-3:2008.

The change in switching points shall be determined at each test temperature specified in 5.2
of IEC 61298-3:2008. For example: +20 °C (reference), +40 °C, +55 °C, +20 °C, 0 °C, –20 °C,
+20 °C. After the first cycle, a second temperature cycle, identical to the first, shall be
performed without readjustment of the instrument.
For instruments with a pneumatic output the air supply temperature shall be the same as the
instrument temperature.
6.2.2 Humidity
The test shall be performed for electrical instruments only.
This test shall be performed according to the methods and procedures stated in Clause 6 of
IEC 61298-3:2008, together with what is stated below.
After the stabilization at the reference relative humidity and temperature, a set of reference
measurements shall be taken.
The power supply to the instrument shall be switched off and the relative humidity shall be
increased as specified in Clause 6 of IEC 61298-3:2008.
The instrument shall be switched on for the final 4 h of the period in stable conditions and the
change in switching points shall be measured immediately after this period.
As specified in Clause 6 of IEC 61298-3:2008, the relative humidity shall be reduced to the
original reference value and, after stabilization, the effect of this test on the switching points
shall be determined.
After this test, a visual inspection shall be conducted to check for effects of flashover,
accumulation of condensation, deterioration of components.
6.2.3 Vibrations
The general test description refers to Clause 7 of IEC 61298-3:2008, together with the
following additional requirements.
a) During the frequency sweeping, frequencies shall be noted, which cause significant
changes in the switching points or spurious operation such as contact bounce.
In order to measure the effect of vibrations on the switching behaviour, the sweeping shall
be performed with the measured variable input set above the switching point x , or below
the switching point x to a distance that is twice the value of the differential gap X , but
1 sd
not less than 1 % of nominal span of measured value.
If, during the sweeping, switching occurs, the test shall be repeated with a larger
difference between measured value input and switching point (at 0 Hz) until no switching
is induced by vibration.
The largest difference and the frequency, at which the last switching occurred, are to be
noted.
b) Endurance conditioning by sweeping.
The instrument shall be subjected to vibration for 30 min in each of three mutually
perpendicular planes, one of which shall be the vertical direction. In each plane, the test
shall be run at that frequency which resulted in the largest mechanical resonance during
the initial resonance search, or if a resonance was not detected, the vibration frequency
shall be swept continuously through the whole frequency range being considered.
c) Final resonance search 7.4 of IEC 61298-3:2008.
The resonance frequencies, and the frequencies, which cause significant changes in the
switching points, found in the initial resonance search and the final resonance search shall

– 14 – IEC 61003-1:2016 © IEC 2016
be compared. Difference can be caused by non-elastic deformation, which may lead to the
origination of cracks in the mechanical construction.
d) Final measurement 7.5 of IEC 61298-3:2008.
The satisfactory mechanical condition of the instrument shall be verified at the end of the
test. Any change of switching points shall be noted. If the instrument has a mechanical set
point, determine whether vibration has shifted the set point.
6.2.4 Shock, drop and topple
This test shall be performed according to the methods and procedures stated in Clause 8 of
IEC 61298-3:2008, together with what is stated below.
Before the test, a reference measurement of switching points shall be recorded.
After the test, any change in switching points shall be recorded.
6.2.5 Mounting position
The general test description refers to Clause 9 of IEC 61298-3:2008.
The change in switching points caused by ±10° inclinations from the reference position of the
instrument shall be determined.
6.2.6 Over-range
This test shall be performed according to the methods and procedures stated in Clause 10 of
IEC 61298-3:2008, together with what is stated below.
Under reference conditions, with set point at 50 % (if possible), set the measured value signal
to 50 % overload (i.e. to a value equal to 150 % of upper range values) for 1 min. The
measured value signal shall then be set to 50 % of span and, after 5 min the change in
switching points shall be measured. For instruments using elevated zero signals (e.g. 0,2 bar
to 1,0 bar, 4 mA to 20 mA), the test shall be repeated with measured value signals set to 0
(actual zero, not lower range values).
6.2.7 Output load effects
The effect of the load on the instrument being changed in switching point is determined by
changing the value of the energy source (voltage, pressure, etc.) and changing the load of the
instrument within the permissible limits. Combinations of values are to be selected, which
provide the largest and smallest loading for the switch.
6.2.8 Supply voltage and frequency variations
This test shall be performed on instruments with electrical power supply for internal
operations.
The effect on switching points of the variations in the electrical power supply, indicated in
12.1 of IEC 61298-3:2008, shall be measured, the load impedance being as specified in 6.3 of
IEC 61298-1:2008.
6.2.9 Short-term supply voltage interruptions
The test shall be performed as in 12.4 of IEC 61298-3:2008, with the following additional
procedures.
The set point will be set to a value as specified in a) of 6.2.3.

The test shall be carried out with the output energized and repeated with the output de-
energized.
Any spurious operations such as contact bounce shall be noted.
In order to assess the repeatability of these results, this test shall be repeated 10 times, the
period between two tests being at least equal to 10 times the duration of the interruption.
6.2.10 Fast transient/burst immunity requirements
This test shall be performed according to the methods and procedures stated in 12.5 of
IEC 61298-3:2008, together with what is stated below.
Before the test, a reference measurement of switching points shall be recorded.
Use same input conditions as in a) of 6.2.3.
After the test, any change in switching points shall be noted.
6.2.11 Supply pressure variations
The effect on switching points shall be determined when tests, as in 12.8 of IEC 61298-3:2008,
are performed.
If the manufacturer's specified limits are less than the preferred test values indicated above,
this fact shall be reported with the test results.
6.2.12 Common mode interference
Requirements deleted .
6.2.13 Normal mode interference (series mode)
Requirements deleted .
6.2.14 Earthing
This test shall be performed according to the methods and procedures stated in 13.3 of
IEC 61298-3:2008, together with what is stated below.
This test is applicable only to instruments with electrical inputs and outputs which are isolated
from earth.
The test shall be carried out by measurement of the steady position change of the switching
points caused by earthing each input and output terminal in turn.
Any transient change shall be noted.
6.2.15 Magnetic field effects
The test shall be carried out by measurement of the steady position change of the switching
points caused by the applied magnetic fields specified in Clause 15 of IEC 61298-3:2008.
___________
This part of IEC 61003 is an old International Standard and it is referred to in many documents. In order not to
modify those documents, the numbering of subclauses in this part of IEC 61003 remains unchanged although
some subclauses (6.2.12 and 6.2.13) do not apply anymore.

– 16 – IEC 61003-1:2016 © IEC 2016
6.2.16 Electromagnetic field
This test shall be performed according to the methods and procedures stated in Clause 16 of
IEC 61298-3:2008, together with what is stated below.
The steady position changes of the switching points as:
a) a consistent measurable change,
b) as a random change, not repeatable, and possibly further classified as a transient effect
occurring during the application of the electromagnetic field and as a permanent or semi-
permanent field after the application of the electromagnetic field,
shall be measured and reported.
Any damage to the instrument, resulting from the application of the electromagnetic field,
shall be noted.
6.2.17 Electrostatic discharge (ESD)
This test shall be performed according to the methods and procedures stated in Clause 17 of
IEC 61298-3:2008, together with what is stated below.
The records may show, for example:
a) the effect of ESD on the switching points:
1) as a consistent measurable effect,
2) as a random effect, not repeatable and possibly further classified as a transient effect
occurring during the application of ESD and as a permanent or semi-permanent effect
lasting after the application of the ESD;
b) any damage to the instrument resulting from the application of the ESD.
6.2.18 Effect of open-circuited and short-circuited input
This test shall be performed according to the methods and procedures stated in Clause 18 of
IEC 61298-3:2008.
The changes in switching points during the test and the ultimate steady position changes shall
be recorded.
6.2.19 Effect of open-circuited and short-circuited output
This test shall be performed according to the methods and procedures stated in Clause 19 of
IEC 61298-3:2008.
The changes in switching points during the test and the ultimate steady position changes shall
be recorded.
6.2.20 Effect of process medium temperature
This test shall be performed according to the methods and procedures stated in 20.1 of
IEC 61298-3:2008.
The steady position changes in swit
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