Inventis TIMPANI Manual Del Usuario página 57

< 5% U
(dip >95% in U
half cycle.
Voltage dips,
short interruptions
40% U
and fluctuations
(dip >60% in U
affecting voltage
cycles.
on incoming
electrical power
70% U
supply lines
(dip >30% in U
cycles.
IEC 61000-4-11
<5% U
(dip >95% in U
Magnetic field at
power frequency
30 A/m
(50/60 Hz)
IEC 61000-4-8
(1)
Note: U is the a.c. supply voltage prior to application of the test level.
T
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.
Test level to
Immunity tests
IEC 60601
3 Vrms
0.15MHz to
80MHz
Conducted RF
6 Vrms
IEC 61000-4-6 ISM bands
between 0.15
MHz and 80
MHz
3 V/m
Radiated RF
From 80 MHz
IEC 61000-4-3
to 2.7 GHz
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 telephones and radio, ham radio, AM
and FM radio or TV transmissions. To evaluate the electromagnetic environment created by fixed RF
transmitters, it may be necessary to conduct an electromagnetic survey on site. If the field strength measured at
the point where the Timpani is in use exceeds the applicable RF level of compliance indicated above, check the
operation of the instrument closely, to ensure that its performance levels meet the required standards. If
abnormalities are observed, then additional measures may be necessary, such as changing the directional
position or the location of the Timpani.
b) In the frequency range from 150 kHz to 80 MHz, field strengths must be lower than 3 V/m.
(1)
< 5% U
T
) for (dip >95% in U
T
half cycle.
40% U
T T
) for 5 (dip >60% in U
T
cycles.
70% U
T T
) for 25 (dip >30% in U
T
cycles.
<5% U
T T
) for 5 s. (dip >95% in U
T
30 A/m
Level of
Compliance
3 Vrms
0.15MHz to
80MHz
6 Vrms
ISM bands
between 0.15
MHz and 80
MHz
3 V/m
From 80 MHz
to 2.7 GHz
(1)
The quality of electrical
T
) for power supplied by the grid
T
must correspond to that of
professional healthcare
facilities. If the user of the
) for 5
T Timpani needs to rely on
uninterrupted operation of
the unit even in the absence
of mains power, the
) for 25
T
instrument must be
connected either to a UPS or
to a battery.
) for 5 s.
T
Magnetic fields at power
frequencies must correspond
to the levels typical of
professional healthcare
facilities.
Electromagnetic environment – guidelines
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
EN
49