Welby BDH 612 Manual Del Usuario página 49

Overvoltage
IEC 61000-4-5
Voltage drops, short
interruptions and fluc-
tuations in voltage of
the supply voltage feed
lines in accordance with
IEC 61000-4-11
± 1 kV ± 1 kV
Differential Differential mode
mode
< 5 % UT (> 95 % < 5 % UT (> 95 % drop of
drop of UT) for UT) for 0.5 cycles
0.5 cycles 40 %
< 40 % UT (60 % drop of
UT (60 % drop of
UT) for 5 cycles
UT) for 5 cycles
< 70 % UT (30 % drop of
70 % UT (30 %
UT) for 25 cycles
drop of UT) for 25
< 5 % UT (> 95 % drop of
cycles < 5 % UT
UT) for 5 s
(> 95 % drop of
UT) for 5 s
Notes on electromagnetic interference immunity
The quality of the mains power
supply should be equivalent to
a typical commercial or hospital
environment.
The quality of the mains power
supply should be equivalent to
a typical commercial or hospital
environment. If the user of the
wrist blood pressure monitor
BDH 612 wishes to continue op-
eration during interruptions to
the mains power supply, it is rec-
ommended to connect the wrist
blood pressure monitor BDH 612
to an interruption-free power
supply or battery.
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