5.1 Electromagnetic Compatibility
Guidance and manufacturer’s declaration - electromagnetic emissions
The BP+ is intended for use in the electromagnetic environment specified below. The customer or the user of the BP+ should assure that it is used
in such an environment.
Emissions test
Compliance
Electromagnetic environment - guidance
RF emissions
CISPR 11
Group 1
The BP+ uses RF energy only for its internal function. Therefore, its RF emissions are very low
and not likely to cause any interference in nearby electronic equipment.
RF emissions
CISPR 11
Class B
The BP+ is suitable for use in all establishments, including domestic establishments and those
directly connected to the public low-voltage power supply network that supplies buildings used for
domestic purposes.
Harmonic emissions
IEC 61000-3-2
Class A
Voltage fluctuations / flicker
emissions IEC 61000-3-3
Complies
The BP+ should not be used adjacent to or stacked with other equipment. If adjacent or stacked use is necessary, the BP+ should be observed to
verify normal operation in the configuration in which it will be used.
Guidance and manufacturer’s declaration - electromagnetic immunity
The BP+ is intended for use in the electromagnetic environment specified below. The customer or the user of the BP+ should assure that it is used
in such an environment.
Immunity test
IEC 60601 test level
Compliance level
Electromagnetic environment - guidance
Electrostatic
discharge, ESD
(IEC 61000-4-2)
±6 kV contact
±8 kV air
±6 kV contact
±8 kV air
Floors should be wood, concrete or ceramic tile.
If floors are covered with synthetic material, the
relative humidity should be at least 30%.
Electrical fast
transient / burst
(IEC 61000-4-4)
±2 kV for power supply lines
±1 kV for input / output lines
±2 kV for power supply lines
±1 kV for input / output lines
Mains power quality should be that of a typical
commercial or hospital environment.
Surge
(IEC 61000-4-5)
±1 kV line(s) to line(s)
±2 kV line(s) to earth
±1 kV line(s) to line(s)
±2 kV line(s) to earth
Mains power quality should be that of a typical
commercial or hospital environment.
Voltage dips, short
interruptions and
voltage variations
on power supply
input lines
(IEC 61000-4-11)
<5 %
U
T
(>95 % dip in
U
T
) for 0.5
cycle
40 %
U
T
(60% dip in
U
T
) for 5 cycles
70 %
U
T
(30 % dip in
U
T
) for 25
cycles
<5 %
U
T
(>95 % dip in
U
T
) for 5 sec
<5 %
U
T
(>95 % dip in
U
T
) for 0.5
cycle
40 %
U
T
(60% dip in
U
T
) for 5 cycles
70 %
U
T
(30 % dip in
U
T
) for 25
cycles
<5 %
U
T
(>95 % dip in
U
T
) for 5 sec
Mains power quality should be that of a typical
commercial or hospital environment. If the user
of the BP+ requires continued operation during
power mains interruptions, it is recommended
that the BP+ be powered from an uninterruptible
power supply.
Power frequency
(50/60 Hz)
magnetic field
(IEC 61000-4-8)
3 A/m
3 A/m
Power frequency magnetic fields should be at
levels characteristic of a typical location in a
typical commercial or hospital environment.
NOTE
U
T
is the AC mains voltage prior to application of the test level.
Immunity test
IEC 60601
test level
Compliance
level
Electromagnetic environment - guidance
Conducted RF
(IEC 61000-4-6)
Radiated RF
(IEC 61000-4-3)
3 Vrms
150 kHz to
80 MHz
3 V/m
80 MHz to
2.5 GHz
3 V
3 V/m
Portable and mobile RF communications equipment should be used no closer to any part of the
BP+, including cables, than the recommended separation distance calculated from the equation
applicable to the frequency of the transmitter.
Recommended separation distance
d
= 1.2 √
P
d
= 1.2 √
P
80 MHz to 800 MHz
d
= 2.3 √
P
800 MHz to 2.5 GHz
where
P
is the maximum output power rating of the transmitter in watts (W) according to the
transmitter manufacturer and
d
is the recommended separation distance in metres (m).
Field strengths from fixed RF transmitters, as determined by an electromagnetic site survey,
a
should be less than the compliance level in each frequency range.
b
Interference may occur in the vicinity of equipment marked with the following symbol:
NOTE 1 At 80 MHz and 800 MHz, the higher frequency range applies.
NOTE 2 These guidelines may not apply in all situations. Electromagnetic propagation is affected by absorption and reflection from structures,
objects and people.
a
Field strengths from fixed transmitters, such as base stations for radio (cellular / cordless) telephones and land mobile radios, amateur radio, AM
and FM radio broadcast and TV broadcast cannot be predicted theoretically with accuracy. To assess the electromagnetic environment due to
fixed RF transmitters, an electromagnetic site survey should be considered. If the measured field strength in the location in which the BP+ is used
exceeds the applicable RF compliance level above, the BP+ should be observed to verify normal operation. If abnormal performance is observed,
additional measures may be necessary, such as re-orienting or relocating the BP+.
b
Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 3 V/m.
Recommended separation distances between portable and mobile RF communications equipment and the BP+
The BP+ is intended for use in an electromagnetic environment in which radiated RF disturbances are controlled. The customer or user of the BP+
can help prevent electromagnetic interference by maintaining a minimum distance between portable and mobile RF communications equipment
(transmitters) and the BP+ as recommended below, according to the maximum output power of the communications equipment.
Rated maximum output power
of transmitter (W)
Separation distance according to frequency of transmitter (m)
150 kHz to 80 MHz
d
= 1.2 √
P
80 MHz to 800 MHz
d
= 1.2 √
P
800 MHz to 2.5 GHz
d
= 2.3 √
P
0.01
0.12
0.12
0.23
0.1
0.38
0.38
0.73
1
1.2
1.2
2.3
10
3.8
3.8
7.3
100
12
12
23
For transmitters rated at a maximum output power not listed above, the recommended separation distance
d
in metres (m) can be estimated using
the equation applicable to the frequency of the transmitter, where
P
is the maximum output power rating of the transmitter in watts (W) according to
the transmitter manufacturer.
NOTE 1 At 80 MHz and 800 MHz, the separation distance for the higher frequency range applies.
NOTE 2 These guidelines may not apply in all situations. Electromagnetic propagation is affected by absorption and reflection from structures,
objects and people.
Essential Performance of the BP+ as required by IEC 60601-1-2 § 3.201.2 is defined as 1) opening of cuff pressure valves if detected cuff
pressure exceeds 300 mmHg or 15 mmHg for more than 3 minutes; 2) no degradation of blood pressure measurement accuracy beyond
that given in the specification.
Page 30 of 31
BP+ User Manual (R7)
