Hoffrichter 5CPD10, User Manual, Page: 128 / 130

128 Chapter 9: Annex
Guidance and manufacturer’s declaration - electromagnetic immunity
Immunity tests IEC 60601 test level Compliance level Electromagnetic envi-
ronment - guidance
Voltage dips, tem-
porary interruptions
and voltage fluctua-
tions in the voltage
supply lines as per
IEC 61000-4-11 > 95 % dip of U
T
for
1/2 period
> 95 % dip of U
T
for 1
period
> 30 % dip of U
T
for
25 (50 Hz) periods/
30 (60 Hz) periods/
> 95 % dip of U
T
for
250 (50 Hz) periods /
300 (60 Hz) periods /
> 95 % dip of U
T
for
1/2 period
> 60 % dip of U
T
for
5 periods
> 30 % dip of U
T
for
25 periods
> 95 % dip of U
T
for
5s or 6s
The quality of the sup-
ply voltage should cor-
respond to one of the
typical business or hos-
pital environments. If
the user of the
TREND
III
respiratory therapy
device requires contin-
ued functioning even in
the event of an interrup-
tion to the power supply,
we recommended supply-
ing the
TREND III
respira-
tory therapy device using
an uninterruptable power
supply (UPS) or a battery.