GE Vscan Extend User Manual page 41

Table 2-2:
Guidance and manufacturer's declaration – electromagnetic immunity.
The Vscan Extend is intended for use in the electromagnetic environment below. The
customer or the user of the Vscan Extend should assure that it is used in such an
Immunity test
Voltage dips, short
interruptions and
voltage variations on
power supply input lines
EN 61000-4-11
Power frequency (50/
60 Hz) magnetic field
EN/IEC 61000-4-8
NOTE: U is the a. c. mains voltage prior to application of the test level.
T
–
Vscan Extend User Manual
5721203-100 Rev. D
Electromagnetic immunity (Part 1) (Continued)
environment.
EN 60601
test level
5% U (>95% dip in
T
U ) for 0,5 cycle
T
40% UT
(60% dip in U ) for 5
T
cycles
70% U (30% dip in
T
U ) for 25 cycles
T
< 5% U (>95% dip in
T
U ) for 5 s
T
3 A/m
Important safety considerations
Compliance level
5% U (>95% dip in Mains power quality should
T
be that of a typical
U ) for 0,5 cycle
T
commercial or hospital
40% UT
environment. If the user of
(60% dip in U ) for 5
T
the ultrasound unit requires
cycles
continued operation during
70% U (30% dip in
T
power mains interruptions, it
U ) for 25 cycles
T
is recommended that the
< 5% U (>95% dip
ultrasound unit is powered
T
in U ) for 5 s
from an uninterruptible
T
power supply or a battery.
3 A/m Power frequency magnetic
fields should be at levels
characteristic of a typical
location in a typical
commercial or hospital
environment.
Electromagnetic
environment –
guidance
2-15