IEC 60601-2-34:2011

IEC 60601-2-34 ®
Edition 3.0 2011-05
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Medical electrical equipment –
Part 2-34: Particular requirements for the basic safety and essential performance
of invasive blood pressure monitoring equipment

Appareils électromédicaux –
Partie 2-34: Exigences particulières pour la sécurité de base et les performances
essentielles des appareils de surveillance de la pression sanguine prélevée
directement
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IEC 60601-2-34 ®
Edition 3.0 2011-05
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Medical electrical equipment –
Part 2-34: Particular requirements for the basic safety and essential performance
of invasive blood pressure monitoring equipment

Appareils électromédicaux –
Partie 2-34: Exigences particulières pour la sécurité de base et les performances
essentielles des appareils de surveillance de la pression sanguine prélevée
directement
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX XB
ICS 11.040.55 ISBN 978-2-88912-495-4

– 2 – 60601-2-34  IEC:2011
CONTENTS
FOREWORD . 4
INTRODUCTION . 6
201.1 Scope, object and related standards . 7
201.2 Normative references . 8
201.3 Terms and definitions . 9
201.4 General requirements . 10
201.5 General requirements for testing of ME EQUIPMENT . 10
201.6 Classification of ME EQUIPMENT and ME SYSTEMS . 11
201.7 ME EQUIPMENT identification, marking and documents. 11
201.8 Protection against electrical HAZARDS from ME EQUIPMENT . 13
201.9 Protection against MECHANICAL HAZARDS of ME EQUIPMENT and ME SYSTEMS . 20
201.10 Protection against unwanted and excessive radiation HAZARDS . 21
201.11 Protection against excessive temperatures and other HAZARDS . 21
201.12 Accuracy of controls and instruments and protection against hazardous
outputs . 23
201.13 HAZARDOUS SITUATIONS and fault conditions . 29
201.14 PROGRAMMABLE ELECTRICAL MEDICAL SYSTEMS (PEMS) . 29
201.15 Construction of ME EQUIPMENT . 29
201.16 ME SYSTEMS . 30
201.17 Electromagnetic compatibility of ME EQUIPMENT and ME SYSTEMS . 30
202 Electromagnetic compatibility – Requirements and tests . 30
208 General requirements, tests and guidance for alarm systems in medical
electrical equipment and medical electrical systems . 36
Annexes . 45
Annex AA (informative) Particular guidance and rationale . 46
Annex BB (informative) Alarm diagrams 208/IEC 60601-1-8:2006 . 59
Bibliography . 61
Index of defined terms used in this particular standard. 62

Figure 201.101 – Dynamic test for limitation of energy from different parts – Recovery
test . 15
Figure 201.102 – Diaphragm leak test . 16
Figure 201.103 – Measuring circuit for PATIENT LEAKAGE CURRENT via the PATIENT
CONNECTION(S) of an F-TYPE APPLIED PART to earth caused by an external voltage on the
PATIENT CONNECTION(S) . 17
Figure 201.104 – Measuring circuit for the PATIENT LEAKAGE CURRENT from the APPLIED
PART to earth of CLASS I ME EQUIPMENT caused by an external voltage on a metal
ACCESSIBLE PART that is not PROTECTIVELY EARTHED. . 18
Figure 201.105 – Measuring circuit for the PATIENT LEAKAGE CURRENT from the APPLIED
PART to earth of INTERNALLY POWERED ME EQUIPMENT caused by an external voltage on
a metal ACCESSIBLE PART that is not PROTECTIVELY EARTHED . 19
Figure 201.106– Clarification of leakage current tests . 20
Figure 201.107 – Over-pressure test . 21
Figure 201.108 – Test for accuracy of pressure measurements . 25

60601-2-34  IEC:2011 – 3 –
Figure 201.109 – Test sequence for sensitivity, repeatability, non-linearity, drift and
hysteresis . 26
Figure 201.110 – Pressure measurement system for accuracy of systolic and diastolic
pressure . 27
Figure 201.111 – Frequency response of ME EQUIPMENT and TRANSDUCER . 28
Figure 202.101 – Test layout for conducted and radiated emission and radiated
immunity test . 31
Figure 202.102 – Test circuit for high-frequency surgery interference measurement,
when the isolation of the APPLIED PART is in the monitor . 34
Figure 202.103 – Test circuit for high-frequency surgery protection, when the isolation
of the APPLIED PART is in the TRANSDUCER . 35
Figure 202.104 – Test set-up for high-frequency surgery protection . 36
Figure 208.101 – Test for delay times of ALARM SIGNALS indicating PHYSIOLOGICAL
ALARM CONDITIONS . 41
Figure 208.102 – Test for delay times of ALARM SIGNALS indicating PHYSIOLOGICAL
ALARM CONDITIONS . 42
Figure AA.1 – Pressure TRANSDUCER error band . 53
Figure BB.101 – NON-LATCHING ALARM SIGNALS without ALARM RESET . 59
Figure BB.102 – NON-LATCHING ALARM SIGNALS with ALARM RESET . 59
Figure BB.103 – LATCHING ALARM SIGNALS with ALARM RESET . 60
Figure BB.104 – Two ALARM CONDITIONS with ALARM RESET . 60

Table 201.101 – ESSENTIAL PERFORMANCE requirements . 10
Table 208.101 – ALARM CONDITION priorities . 37
Table 208.102 – Characteristics of the BURST of auditory ALARM SIGNALS . 38

– 4 – 60601-2-34  IEC:2011
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
MEDICAL ELECTRICAL EQUIPMENT –

Part 2-34: Particular requirements for the basic safety and essential
performance of invasive blood pressure monitoring equipment

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
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2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
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3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
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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 60601-2-34 has been prepared by IEC subcommittee 62D:
Electromedical equipment, of IEC technical committee 62: Electrical equipment in medical
practice.
This third edition cancels and replaces the second edition of IEC 60601-2-34 published in
2001 and constitutes a technical revision. This edition was revised to align structurally with
the 2005 edition of IEC 60601-1.
The text of this particular standard is based on the following documents:
FDIS Report on voting
62D/906/FDIS 62D/923/RVD
Full information on the voting for the approval of this particular standard can be found in the
report on voting indicated in the above table.

60601-2-34  IEC:2011 – 5 –
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
In this standard, the following print types are used:
– Requirements and definitions: roman type.
– Test specifications: italic type.
– Informative material appearing outside of tables, such as notes, examples and references: in smaller type.
Normative text of tables is also in a smaller type.
– TERMS DEFINED IN CLAUSE 3 OF THE GENERAL STANDARD, IN THIS PARTICULAR STANDARD OR AS
NOTED: SMALL CAPITALS.
In referring to the structure of this standard, the term
– “clause” means one of the seventeen numbered divisions within the table of contents,
inclusive of all subdivisions (e.g. Clause 7 includes subclauses 7.1, 7.2, etc.);
– “subclause” means a numbered subdivision of a clause (e.g. 7.1, 7.2 and 7.2.1 are all
subclauses of Clause 7).
References to clauses within this standard are preceded by the term “Clause” followed by the
clause number. References to subclauses within this particular standard are by number only.
In this standard, the conjunctive “or” is used as an “inclusive or” so a statement is true if any
combination of the conditions is true.
The verbal forms used in this standard conform to usage described in Annex H of the ISO/IEC
Directives, Part 2. For the purposes of this standard, the auxiliary verb:
– “shall” means that compliance with a requirement or a test is mandatory for compliance
with this standard;
– “should” means that compliance with a requirement or a test is recommended but is not
mandatory for compliance with this standard;
– “may” is used to describe a permissible way to achieve compliance with a requirement or
test.
An asterisk (*) as the first character of a title or at the beginning of a paragraph or table title
indicates that there is guidance or rationale related to that item in Annex AA.
A list of all parts of the IEC 60601 series, published under the general title Medical electrical
equipment, 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 web site 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 – 60601-2-34  IEC:2011
INTRODUCTION
This particular standard concerns the BASIC SAFETY and ESSENTIAL PERFORMANCE of INVASIVE
BLOOD PRESSURE MONITORING EQUIPMENT. It amends and supplements IEC 60601-1 (third
edition, 2005): Medical electrical equipment – Part 1: General requirements for basic safety
and essential performance, hereinafter referred to as the general standard.
The aim of this third edition is to bring this particular standard up to date with reference to the
third edition of the general standard through reformatting and technical changes.
The requirements of this particular standard take priority over those of the general standard.
A “General guidance and rationale” for the more important requirements of this particular
standard is included in Annex AA. It is considered that knowledge of the reasons for these
requirements will not only facilitate the proper application of the standard but will, in due
course, expedite any revision necessitated by changes in clinical practice or as a result of
developments in technology. However, Annex AA does not form part of the requirements of
this standard.
60601-2-34  IEC:2011 – 7 –
MEDICAL ELECTRICAL EQUIPMENT –

Part 2-34: Particular requirements for the basic safety and essential
performance of invasive blood pressure monitoring equipment

201.1 Scope, object and related standards
Clause 1 of the general standard applies, except as follows:
201.1.1 *Scope
Replacement:
This particular standard applies to BASIC SAFETY and ESSENTIAL PERFORMANCE of INVASIVE
BLOOD PRESSURE MONITORING EQUIPMENT as defined in 201.3.63, hereinafter referred to as
ME EQUIPMENT.
This particular standard does not apply to catheter tubing, catheter needles, Luer locks, taps
and tap tables that connect to the DOME.
This particular standard does not apply to NON-INVASIVE BLOOD PRESSURE MONITORING
EQUIPMENT.
201.1.2 Object
Replacement:
The object of this particular standard is to establish BASIC SAFETY and ESSENTIAL PERFORMANCE
requirements for INVASIVE BLOOD PRESSURE MONITORING EQUIPMENT, as defined in 201.3.63.
201.1.3 Collateral standards
Addition:
This particular standard refers to those applicable collateral standards that are listed in
Clause 2 of the general standard and Clause 201.2 of this particular standard.
IEC 60601-1-2:2007 and IEC 60601-1-8:2006 apply as modified in Clauses 202 and 208
respectively. IEC 60601-1-3 does not apply. All other published collateral standards in the
IEC 60601-1 series apply as published.
201.1.4 Particular standards
Replacement:
In the IEC 60601 series, particular standards may modify, replace or delete requirements
contained in the general standard and collateral standards as appropriate for the particular
ME EQUIPMENT under consideration, and may add other BASIC SAFETY and ESSENTIAL
PERFORMANCE requirements.
—————————
The general standard is IEC 60601-1:2005, Medical electrical equipment – Part 1: General requirements for
basic safety and essential performance

– 8 – 60601-2-34  IEC:2011
A requirement of a particular standard takes priority over the general standard.
For brevity, IEC 60601-1 is referred to in this particular standard as the general standard.
Collateral standards are referred to by their document number.
The numbering of clauses and subclauses of this particular standard corresponds to that of
the general standard with the prefix “201” (e.g. 201.1 in this standard addresses the content
of Clause 1 of the general standard) or applicable collateral standard with the prefix “20x”
where x is the final digit(s) of the collateral standard document number (e.g. 202.4 in this
particular standard addresses the content of Clause 4 of the 60601-1-2 collateral standard,
203.4 in this particular standard addresses the content of Clause 4 of the 60601-1-3 collateral
standard, etc.). The changes to the text of the general standard are specified by the use of
the following words:
"Replacement" means that the clause or subclause of the general standard or applicable
collateral standard is replaced completely by the text of this particular standard.
"Addition" means that the text of this particular standard is additional to the requirements of
the general standard or applicable collateral standard.
"Amendment" means that the clause or subclause of the general standard or applicable
collateral standard is amended as indicated by the text of this particular standard.
Subclauses, figures or tables which are additional to those of the general standard are
numbered starting from 201.101. However due to the fact that definitions in the general
standard are numbered 3.1 through 3.139, additional definitions in this standard are
numbered beginning from 201.3.201. Additional annexes are lettered AA, BB, etc., and
additional items aa), bb), etc.
Subclauses, figures or tables which are additional to those of a collateral standard are
numbered starting from 20x, where “x” is the number of the collateral standard, e.g. 202 for
IEC 60601-1-2, 203 for IEC 60601-1-3, etc.
The term "this standard" is used to make reference to the general standard, any applicable
collateral standards and this particular standard taken together.
Where there is no corresponding clause or subclause in this particular standard, the clause or
subclause of the general standard or applicable collateral standard, although possibly not
relevant, applies without modification; where it is intended that any part of the general
standard or applicable collateral standard, although possibly relevant, is not to be applied, a
statement to that effect is given in this particular standard.
201.2 Normative references
Clause 2 of the general standard applies, except as follows:
Replacement:
IEC 60601-1-2:2007, Medical electrical equipment – Part 1-2: General requirements for basic
safety and essential performance – Collateral standard: Electromagnetic compatibility –
Requirements and tests
IEC 60601-1-8:2006, Medical electrical equipment – Part 1-8: General requirements for basic
safety and essential performance – Collateral standard: General requirements, tests and
guidance for alarm systems in medical electrical equipment and medical electrical systems
Addition:
60601-2-34  IEC:2011 – 9 –
IEC 60601-2-2:2009, Medical electrical equipment – Part 2-2: Particular requirements for the
basic safety and essential performance of high frequency surgical equipment and high
frequency surgical accessories
IEC 60601-2-27, Medical electrical equipment – Part 2-27: Particular requirements for the
basic safety and essential performance of electrocardiographic monitoring equipment
IEC 60601-2-49, Medical electrical equipment – Part 2-49: Particular requirements for the
basic safety and essential performance of multifunction patient monitoring equipment
ISO 15223-1:2007 Medical devices – Symbols to be used with medical device labels, labelling
and information to be supplied – Part 1: General requirements
NOTE Informative references are listed in the bibliography beginning on page 61.
201.3 Terms and definitions
NOTE An index of defined terms is found beginning on page 61.
For the purposes of this document, the terms and definitions given in IEC 60601-1:2005
apply, except as follows:
Replacement:
201.3.63
EDICAL ELECTRICAL EQUIPMENT
M
ME EQUIPMENT
Addition:
INVASIVE BLOOD PRESSURE MONITORING EQUIPMENT (ME EQUIPMENT)
device including associated TRANSDUCERS, that is used for internal measurement or
monitoring of circulatory system pressures
Replacement:
201.3.8
APPLIED PART
TRANSDUCER, including its associated catheter and any fluid-filled system
Additional definitions:
201.3.201
CATHETER TIP TRANSDUCER
TRANSDUCER mounted at, or close to, the tip of a catheter and intended for insertion into the
cardiovascular system
201.3.202
DOME
means for hydraulically coupling the PATIENT'S blood pressure to a TRANSDUCER external to the
PATIENT
—————————
Third edition, to be published.
Second edition, to be published.

– 10 – 60601-2-34  IEC:2011
201.3.203
NOMINAL SENSITIVITY
ratio of the change in TRANSDUCER output to a change of the value of the pressure at any
selected pressure range
201.3.204
TRANSDUCER
device for converting pressure into an electrical signal
201.4 General requirements
Clause 4 of the general standard applies, except as follows:
201.4.3 ESSENTIAL PERFORMANCE
Addition:
201.4.3.101 Additional ESSENTIAL PERFORMANCE requirements
Additional ESSENTIAL PERFORMANCE requirements for INVASIVE BLOOD PRESSURE MONITORING
EQUIPMENT are found in subclauses listed in Table 201.101.
Table 201.101 – ESSENTIAL PERFORMANCE requirements
Requirement Subclause
Defibrillator protection 201.8.5.5.1
Accuracy of pressure measurements 201.12.1.101
Electrosurgery interference 202.6.2.101
Delays to or from a DISTRIBUTED ALARM SYSTEM 208.6.4.2
PHYSIOLOGICAL ALARM CONDITIONS, ALARM LIMITS and delay time 208.6.6.2.101
of physiological ALARM SIGNALS
Detection of TRANSDUCER and TRANSDUCER cable fault 208.6.6.2.102
Detection of disconnected catheter 208.6.6.2.103
201.5 General requirements for testing of ME EQUIPMENT
Clause 5 of the general standard applies, except as follows:
201.5.4 Other conditions
Addition:
Unless otherwise stated, tests shall be carried out with the ACCESSORIES specified by the
MANUFACTURER.
ME EQUIPMENT with an INTERNAL ELECTRICAL POWER SOURCE, if the test result is affected by
For
the INTERNAL ELECTRICAL POWER SOURCE voltage, then the test shall be performed using the
least favourable INTERNAL ELECTRICAL POWER SOURCE voltage specified by the MANUFACTURER.
If necessary for the purpose of conducting the test, an external battery or d.c. power supply
may be used to provide the necessary test voltage.
The values used in test circuits, unless otherwise specified, shall have at least an accuracy as
given below:
– resistors: ± 1 %;
60601-2-34  IEC:2011 – 11 –
– capacitors: ± 10 %;
– inductors: ± 10 %;
– test voltages: ± 1 %
201.5.8 * Sequence of tests
Amendment:
Tests called for in 201.8.5.5.1 of this particular standard and in 8.5.5 of the general standard
shall be carried out prior to the LEAKAGE CURRENT and dielectric strength tests described in
subclauses 8.7 and 8.8 of the general standard and prior to the tests specified in subclause
201.12.1.101.
201.6 Classification of ME EQUIPMENT and ME SYSTEMS
Clause 6 of the general standard applies, except as follows:
201.6.2 * Protection against electric shock
Replacement of the last paragraph:
APPLIED PARTS shall be classified as TYPE CF APPLIED PARTS (see 7.2.10 and 8.3 of the general
standard). APPLIED PARTS shall be classified as DEFIBRILLATION-PROOF APPLIED PARTS (see
8.5.5 of the general standard).
201.6.6 Mode of operation
Replacement:
ME EQUIPMENT shall be classified for CONTINUOUS OPERATION (see 7.2.11).
201.7 ME EQUIPMENT identification, marking and documents
Clause 7 of the general standard applies, except as follows:
201.7.2 Marking on the outside of ME EQUIPMENT or ME EQUIPMENT parts
201.7.2.10 APPLIED PARTS
Addition:
TYPE CF APPLIED PART isolation depends on the TRANSDUCER, then symbol 27,
If fulfilment of
Table D.1 of the general standard, shall be marked on the TRANSDUCER.
201.7.2.17 * Protective packaging
Addition:
The packaging of TRANSDUCER and DOMES supplied in sterile condition shall be marked with
symbol 5.20 of ISO 15223-1:2007 and the time limit for safe use, expressed as the year and
month by which these ACCESSORIES should be used (symbol 5.12, and 5.20 to 5.24).
The packaging of TRANSDUCER and DOMES that are for single use shall be marked with
symbol 28 in Table D.1 of the general standard.

– 12 – 60601-2-34  IEC:2011
201.7.9.2.9 Operating instructions
Addition:
201.7.9.2.9.101 Additional instructions for use
The operating instructions shall include the following:
a) the INTENDED USE including the environment of use;
b) for ME EQUIPMENT a list of the specified ACCESSORIES such as TRANSDUCER(S) and
DOME(S);
c) for TRANSDUCERS, a list of ME EQUIPMENT that complies with the requirements of this
standard when used with these TRANSDUCERS;
d) descriptions of how to connect the TRANSDUCERS and ACCESSORIES, how to calibrate the
TRANSDUCERS and suggested means for removing entrapped air from the hydraulic
system;
e) advice to the clinical OPERATOR regarding whether the TRANSDUCERS or ME EQUIPMENT
incorporates means to protect the PATIENT against burns when used with HIGH-FREQUENCY
(HF) SURGICAL EQUIPMENT. Advice shall be given regarding the location of electrodes,
TRANSDUCERS, etc. to reduce the hazards of burns in the event of a defect in the neutral
electrode connection of the HF SURGICAL EQUIPMENT;
NOTE ‘Neutral electrode’ here refers to a term defined in IEC 60601-2-2.
f) precautions to take when using a defibrillator on a PATIENT; a description of how the
discharge of a defibrillator affects the ME EQUIPMENT; a warning that defibrillator
protection requires use of MANUFACTURER specified ACCESSORIES including TRANSDUCERS
and adapter cables. The specification (or type-number) of such ACCESSORIES shall be
disclosed;
g) a warning that single-use ACCESSORIES are not to be reused;
TRANSDUCER and/or DOMES are reusable, information on the appropriate processes
h) if the
for cleaning, disinfection, packaging and, where appropriate, the method of sterilization,
and any restriction on the number of reuses;
i) if the ME EQUIPMENT has to be connected to other equipment in order to achieve its
INTENDED USE, sufficient details of its characteristics to correctly identify the equipment
necessary for safe operation;
j) precautions to be taken in the event of changes in performance of the tubing,
TRANSDUCER, or cable as a result of ageing and environmental conditions;
k) the warm-up time for the ME EQUIPMENT and TRANSDUCER(S) if greater than 15 s;
l) * advice regarding testing of the ME EQUIPMENT and ACCESSORIES on a daily basis (by the
OPERATOR) and on a scheduled basis (as a service activity). Emphasis should be
clinical
placed on how the clinician may test visual and auditory ALARM SIGNALS;
m) instructions for connecting a POTENTIAL EQUALIZATION CONDUCTOR, if applicable;
n) the default settings (e.g. ALARM SETTINGS, modes, and filter);
o) performance specification (e.g. accuracy, bandwidth, measurement range) of
ME EQUIPMENT including specified TRANSDUCERS and adjustment ranges of all
ALARM SETTINGS (see 208.6.6.2.101);
physiological
p) explanation of TECHNICAL ALARM CONDITIONS (see 208.6.6.2.102 and 208.6.6.2.103);
ALARM SIGNAL inactivation states
q) the configuration procedure that allows the
(ALARM PAUSED, AUDIO PAUSED, ALARM OFF or AUDIO OFF) or the function ALARM RESET to be
controlled remotely (see 208.6.11.101), if provided;
r) simple fault finding methods for troubleshooting problems by which the clinical OPERATOR
ME EQUIPMENT appears to be functioning incorrectly;
can locate problems if the
NOTE This relates to simple difficulties, not to technical malfunctions.

60601-2-34  IEC:2011 – 13 –
s) the subsequent operation of the ME EQUIPMENT after interruption of the SUPPLY MAINS
exceeding 30 s (see 201.11.8);
t) * description of how to disable ALARM SIGNALS for TECHNICAL ALARM CONDITIONS if
TRANSDUCERS or modules are intentionally disconnected by the clinical OPERATOR (see
208.6.8.101);
u) advice on the preferred ALARM SETTINGS and configurations of the ALARM SYSTEM when the
INTENDED USE includes monitoring of PATIENTS that are not continuously attended by a
clinical OPERATOR;
201.8 Protection against electrical HAZARDS from ME EQUIPMENT
Clause 8 of the general standard applies, except as follows:
201.8.3 Classification of APPLIED PARTS
Replacement:
The APPLIED PART shall be a TYPE CF APPLIED PART.
201.8.5.5.1 * Defibrillation protection
Addition:
ME EQUIPMENT shall have DEFIBRILLATOR-PROOF APPLIED PARTS.
Addition to item b):
The recovery time after defibrillation shall not exceed 10 s.
Addition to common-mode test to verify a):
Compliance is checked by testing in accordance with Figure 201.101. The requirement is met
when after operation of S , the peak voltage between the points Y1 and Y2 does not exceed
1 V.
In the case of a CATHETER TIP TRANSDUCER, the CATHETER with its TRANSDUCER is immersed in
the saline solution for a length of 75 cm or 90 % of the actual length of the CATHETER
excluding its connector, whichever is the shorter.
– Remove the diaphragm of the DOME, destructively if necessary.
– Disposable TRANSDUCERS and CATHETER TIP TRANSDUCERS must be tested intact and
complete.
Repeat the test with the 5 kV supply (V1) reversed.
After this test the ME EQUIPMENT must meet all requirements and tests of this particular
standard and continue to provide BASIC SAFETY and ESSENTIAL PERFORMANCE.
Following this test, replace the DOME with one that has an intact diaphragm and repeat this
test. Verify that the diaphragm was not punctured during the test.
Compliance is checked (test described in Figure 201.102) by applying air pressure gradually
over about 0,5 s, holding that pressure for about 10 s, and noting the absence of bubbles.
Addition to common-mode test to verify b):

– 14 – 60601-2-34  IEC:2011
Compliance is checked by applying a test pressure to the TRANSDUCER sufficient to produce
30 % to 70 % of full-scale deflection (output) at any NOMINAL SENSITIVITY.
While the pressure is maintained, the ME EQUIPMENT is subjected to a test discharge.
Figure 201.101 is used as the test arrangement under the following conditions:
CLASS I ME EQUIPMENT
– Connect the PROTECTIVE EARTH TERMINAL and any FUNCTIONAL EARTH TERMINAL to the
PROTECTIVE EARTH TERMINAL of the test circuit.
CLASS II ME EQUIPMENT and INTERNALLY POWERED ME EQUIPMENT
– Connect foil and any conductive ACCESSIBLE PART not connected to FUNCTIONAL EARTH
TERMINAL and any FUNCTIONAL EARTH TERMINAL to the PROTECTIVE EARTH TERMINAL of the
test circuit.
Verify that the deflection (output) returns to within 20 % of the original value (output) within
10 s after the discharge and remains within these limits for at least a further 30 s.
Compliance is checked (test as described in Figure 201.102) by applying air pressure
gradually over about 0,5 s, holding that pressure for about 10 s, and noting the absence of
bubbles.
60601-2-34  IEC:2011 – 15 –
Mains
S
FE
R 50 Ω 50 W
R
D
R 1
CL
5 kV d.c.
Y1
S
R C
1 μF
V
T
R C
4 2
L 500 µH
100 Ω
1 μF
R=<10 Ω
Y2
50 W
D
C 32 µF
IEC  985/11
Key
1 ME EQUIPMENT ENCLOSURE C
1 µF, 5 %
1,2
3 SIGNAL INPUT/OUTPUT PART short circuited or D Small signal silicon diodes
1,2
loaded
4 TRANSDUCER connections R
1 kΩ, 2 %, not less than 2 kV
5 Unearthed ACCESSIBLE PARTS R
100 kΩ, 2 % not less than 2 kV
7 Insulating protective container filled with R Current limiting resistor
CL
physiological saline
8 TRANSDUCER with DOME; stopcock closed Switch for applying the test voltage
S
9 Foil at base of ME EQUIPMENT Switch for measuring output voltages
S
10 Plastic tube 50 cm V Test voltage
T
11 PROTECTIVE EARTH CONNECTION of For the remaining legends of symbols refer

CLASS I ME EQUIPMENT to Table 5 of the general standard and
Figure 9
12 >1 MΩ
Display device Z
in
NOTE 1 Reusable and/or disposable DOME as furnished by the MANUFACTURER of the ME EQUIPMENT.
NOTE 2 50 Ω simulates the resistance of a low impedance CATHETER filled with physiological saline or a
CATHETER TIP TRANSDUCERS.
NOTE 3 Value of resistor R is determined by need to limit initial charging current peak.
CL
NOTE 4 Oscilloscope of 5 % accuracy. Input impedance of approximately 1 MΩ.
Figure 201.101 – Dynamic test for limitation of energy from different parts –
Recovery test
(see 8.5.5.1 of the general standard and 201.8.5.5.1 of this particular standard)

– 16 – 60601-2-34  IEC:2011
P
IEC  986/11
Key
1 Container filled with water
2 DOME; stopcock closed
Pressure source; +50 kPa (+400 mmHg); The pressure system has to be air-filled and the
P
air pressure is applied gradually over about 0,5 s and held for about 10 s.
Figure 201.102 – Diaphragm leak test
(see 201.8.5.5.1)
201.8.7.4.7 Measurement of the PATIENT LEAKAGE CURRENT
Addition:
Compliance is checked by measurement according to Figures 201.104 and 201.105.
Perform testing with any reusable and/or disposable DOME removed. Disposable TRANSDUCERS
and CATHETER TIP TRANSDUCERS are tested intact and complete. Conductive ACCESSIBLE PARTS
in the hydraulic circuit beyond the DOME and parts within the cardiovascular system in NORMAL
USE are excluded from testing.
For the MAXIMUM MAINS VOLTAGE on the APPLIED PART test, see Figure 201.103. A more
pictorial representation providing additional clarification is shown in Figure 201.106.

60601-2-34  IEC:2011 – 17 –
T
R 100 kΩ
MD
Mains
S
V
V
P
P
T 1
Mains
S
V V
1 P
S
S
10 P
FE
S
P
PE
S
IEC  987/11
Key
1 ME EQUIPMENT ENCLOSURE
3 SIGNAL INPUT/OUTPUT PART short circuited or loaded
4 TRANSDUCER connections
5 Metal ACCESSIBLE PART not being an APPLIED PART and not PROTECTIVELY EARTHED
7 Conductive container filled with physiological saline
8 TRANSDUCER with DOME; stopcock closed
P Sockets, plugs, or terminals for supply connections
For the remaining legends of symbols refer to Table 5 of the general standard
When using a CATHETER TIP TRANSDUCER, immerse the TRANSDUCER.
Measure (with S closed, if CLASS I ME EQUIPMENT) the PATIENT LEAKAGE CURRENT with S
7 1
closed under all possible combinations of positions of S , S , S and of S (external voltage
5 9 10 13
on the PATIENT CONNECTION).
For CLASS II ME EQUIPMENT, the PROTECTIVE EARTH CONNECTION and S are not used.
Conductive ACCESSIBLE PARTS, if any, are connected to earth by means of connection 5 and
S .
Example with the measuring supply circuit of Figure F.1
Figure 201.103 – Measuring circuit for PATIENT LEAKAGE CURRENT via the
PATIENT CONNECTION(S) of an F-TYPE APPLIED PART to earth
caused by an external voltage on the PATIENT CONNECTION(S)

– 18 – 60601-2-34  IEC:2011
T
Mains
S
V
V
P
T 1
Mains S
V
V
1 P
S
S
10 P
FE
S
P
PE
P
MD
P1
IEC  988/11
Key
1 ME EQUIPMENT ENCLOSURE
4 TRANSDUCER connections
Metal ACCESSIBLE PART not being PROTECTIVELY EARTHED
7 Conductive container filled with physiological saline
8 TRANSDUCER with DOME; stopcock closed
P Sockets, plugs, or terminals for supply connections
For the remaining legends of symbols refer to Table 5 of the general standard

NOTE 1 Measure (with S closed, if CLASS I) with S closed under all possible combinations of positions of S , S
7 1 5 9
and S (SINGLE FAULT CONDITION).
NOTE 2 For CLASS II ME EQUIPMENT, the PROTECTIVE EARTH CONNECTION(S) and S are not used.
NOTE 3 Example with the measuring circuit of Figure 16 of the general standard (see 8.7.4.7 b)).
Example with the measuring supply circuit of Figure F.1
Figure 201.104 – Measuring circuit for the PATIENT LEAKAGE CURRENT
from the APPLIED PART to earth of CLASS I ME EQUIPMENT
caused by an external voltage on a metal ACCESSIBLE PART
that is not PROTECTIVELY EARTHED.

60601-2-34  IEC:2011 – 19 –
T
Mains
S
V
V
P
MD
IEC  989/11
Key
1 ME EQUIPMENT ENCLOSURE
4 TRANSDUCER connections
5 Metal ACCESSIBLE PART that is not PROTECTIVELY EARTHED
7 Conductive container filled with physiological saline
8 TRANSDUCER with DOME; stopcock closed
9 INTERNAL ELECTRICAL POWER SOURCE
P Sockets, plugs, or terminals for supply connections
For the remaining legends of symbols refer to Table 5 of the general standard
Figure 201.105 – Measuring circuit for the PATIENT LEAKAGE CURRENT
from the APPLIED PART to earth of INTERNALLY POWERED ME EQUIPMENT
caused by an external voltage on a metal ACCESSIBLE PART
that is not PROTECTIVELY EARTHED
...