Sun Kingdom SK-3000A, Инструкция по эксплуатации

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59
Guidelines and Manufacturers'Statements - Electromagnetic Immunity
The Ophthalmological AB-type Ultrasound Diagnostic Instrument (SK-3000A) is
expected to be used in the following specified electromagnetic environment, and the
purchaser or user shall ensure that it is used in such an electromagnetic environment:
Immunity Test
IEC60601
Test
Electrical level
Conformity
Electrical level
Electromagnetic
Environment - Guide
electrostatic
discharge
（
ESD
）
IEC61000-4-2
±8kV Contact
discharge
±15kV Air
discharge ±8kV Contact
discharge
±15kV Air
discharge
The floor shall be of
wood, concrete or
ceramic tiles. If the floor
is covered with synthetic
materials, the relative
humidity shall be at
least 30%.
electrical fast
transient
IEC61000-4-4
±2kVTo power
cable
±1kV To
input/output cable
±2kV To power
cable
Network power supply
should have the quality
to be used in typical
commercial or hospital
environments
Surge
IEC61000-4-5
±1kV cable to
cable
±2kV cable to
ground
±1kV
Difference Patter
ns
Network power supply
should have the quality
to be used in typical
commercial or hospital
environments
Voltage sags, short
interruptions and
voltage variations
on power input
lines
IEC61000-4-11
< 5% U
T
，
last
0.5 cycle(on
U
T
，
> 95% sag)
40% U
T
，
last
5cycle(on U
T
，
60% sag)
70% U
T
，
last
25 cycles(on U
T
，
30% sag)
< 5% U
T
，
last
5s
(on U
T
，
>
95% sag)
< 5% U
T
，
last0.5 cycle(on
U
T
，
> 95% sag)
40% U
T
，
last 5
cycle(on U
T
，
60% sag)
70% U
T
，
last
25 cycle(on U
T
，
30% sag)
< 5% U
T
，
last
5s
On U
T
，
>
95% sag)
Network power supply
should have the quality
to be used in typical
commercial or hospital
environments. If the
users of the ophthalmic
AB-type ultrasound
diagnostic instrument
(SK-3000A) need to run
continuously during
power interruption, it is
recommended that the
ophthalmic AB-type
ultrasound diagnostic
instrument (SK-3000A)
be powered by
uninterrupted power
supply or battery.
Power frequency
magnetic field
（
50/60Hz
）
3 A/m 3 A/m
The power frequency
magnetic field should
have the horizontal