GE Vivid S70, Руководство пользователя

Страница: 55 / 709

Important safety considerations
Vivid S70 / S60
–
User Manual
2-23
BC092760-1EN 01
Guidance and manufacturer’s decleration - electromagnetic immunity.
Immunity test
IEC 60601-1-2 test
level Compliance level
Electromagnetic
environment -
guidance
Electrostatic discharge
(ESD)
IEC 61000-4-2
±8 kV contact
±15 kV air (max)
±8 kV contact
±15 kV air (max)
Floors should be wood,
concrete or ceramic tile.
If floors are covered
with synthetic material,
the relative humidity
should be at least 30%.
Electrical transients/
bursts
IEC 61000-4-4
±2 kV for power-supply
lines
±1 kV for input/output
lines
100 kHz Repetition
Frequency
±2 kV for power-supply
lines
±1 kV for input/output
lines
100 kHz Repetition
Frequency
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
0, 90, 180, 270 phase
angles
±1 kV line(s) to line(s)
±2 kV line(s) to earth
0, 90, 180, 270 phase
angles
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
0 % U
T
; 0,5 cycle
At 0°, 45°, 90°, 135°,
180°, 225°, 270°, and
315°
0 % U
T
; 1 cycle
70% U
T
; 25/30 cycles
Single phase: at 0°
0 % U
T
; 250/300 cycles
Compliance for all test
levels.
Controlled shutdown
with return to
pre-disturbance
condition after
operator‘s intervention.
(Power-on switch)
Mains power quality
should be that of a
typical commercial or
hospital environment. If
the user of the
ultrasound system
requires continued
operation during power
mains interruptions, it is
recommended that the
ultrasound system is
powered from an
uninterruptible power
supply or a battery.
Power frequency (50/60
Hz) magnetic field
IEC 61000-4-8 30 A/m
50 Hz or 60 Hz 30 A/m
50 and 60Hz
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 a. c. mains voltage prior to application of the test level.