Philips ReCare 7.0 T - Page 70

70
Immunity test
IEC 60601
test level
Compliance level
Electromagnetic environment
–
guidance
Electrical fast
transient/burst
IEC 61000-4-4
+/-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.
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Note
• If the device is interfered by power or signal cable, image quality
may be reduced or abnormally displayed. Such kind of interference
images could be easily identied and dierentiated from the physi-
ological characteristics of patient and longer clinical time consumed
but wouldn’t have any diagnostic accuracy issue.
• If there is a certain frequency of image interference, there is a need
of isolation or ltering of the RF signal.