ZowieTek MegaDVR, Руководство пользователя

Страница: 45 / 47

Limits for Electromagnetic Compatibility (EMC)
43
Guidance and manufacturer’s declaration – electromagnetic immunity
The MegaDVR is intended for use in the electromagnetic environment specified below.
The customer or the user of the MegaDVR 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
IEC61000-4-4
±
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
IEC61000-4-5
±
1kV differential mode
±
2kV common mode
±
1 kV differential mode
±
2 kV common mode
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 UT)
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 UT)
For 5 sec
Mains power quality should be
that of a typical commercial or
hospital environment. If the
user of the MegaDVR requires
continued operation during
power mains interruptions, It
is recommended that the
MegaDVR be powered from an
uninterruptible power supply
or a battery.
Power frequency(50/60 Hz)
Magnetic field
IEC 61000-4-8
3 A/m 3 A/m
Power frequency magnetic
fields should be at least
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.