affecting voltage
on incoming
electrical power
supply lines
IEC 61000-4-11
for half cycle.
40% U
T
(dip >60% in U
T
)
for 5 cycles.
70% U
T
(dip >30% in U
T
)
for 25 cycles.
<5% U
T
(dip >95% in U
T
)
for 5 s.
for half cycle.
40% U
T
(dip >60% in U
T
)
for 5 cycles.
70% U
T
(dip >30% in U
T
)
for 25 cycles.
<5% U
T
(dip >95% in U
T
)
for 5 s.
professional healthcare
facilities. If the user of the
Timpani needs to rely on
uninterrupted operation of
the unit even in the
absence of mains power,
the instrument must be
connected either to a UPS
or to a battery.
Magnetic field at
power frequency
(50/60 Hz)
IEC 61000-4-8
Magnetic fields at power
frequencies must
correspond to the levels
typical of professional
healthcare facilities.
Note:
(1)
U
T
is the a.c. supply voltage prior to application of the test level.
Manufacturer's indications and declaration - electromagnetic immunity
The Timpani is designed for use in an electromagnetic environment as specified
below. The user of the Timpani must ensure that the instrument is operated in
ambient conditions as close as possible to these.
Electromagnetic environment -
guidelines
Conducted RF
IEC 61000-4-6
3 Vrms
0.15MHz to
80Mhz
6 Vrms
ISM bands
between 0.15
MHz and 80
MHz
3 Vrms
0.15MHz to
80Mhz
6 Vrms
ISM bands
between 0.15
MHz and 80
MHz
Portable items of RF communication
equipment (including peripherals such as
antenna cables and external antennas)
must be used at a distance no closer than
30 cm (12 inches) to any part of the
Timpani, including cables specified by
the maker
The field strengths of fixed RF
transmitters, established by way of an
electromagnetic survey on site, a) must
be lower than the level of compliance
within each range of frequencies, b) may
be associated with instances of
interference near appliances bearing the
symbol indicated below
Radiated RF
IEC 61000-4-3
Note 1: At 80 MHz and at 800 MHz, the higher frequency range is applied.
Note 2: These indications may not be valid in all situations. Electromagnetic propagation is
affected by absorption and reflection on encountering structures, objects and persons.
a) It is not possible to make a theoretical prediction with absolute certainty as to the field
strengths of fixed transmitters, such as base radio stations (cell/cordless), terrestrial mobile