Vyaire MicroRPM Operating Manual page 26

Voltage
dips, short
interruptions
and voltage
variations on
power supply
input lines
IEC 61000-4-11
Power frequency
(50/60 Hz)
magnetic field
IEC 61000-4-8
NOTE U is the a.c. mains voltage prior to application of the test level.
T
0 % U ; 0,5
T
cycle
At 0°, 45°, 90°,
135°, 180°,
225°, 270° and
315°
0 % U ; 1 cycle
T
and
70 % U ; 25/30
T
cycles
Single phase:
at 0°
and
0 % U ; 250/300
T
cycle
30 A/m
50 & 60 Hz
Not Applicable
30 A/m
50 & 60 Hz
26
Mains power
quality should be
that of a typical
commercial
or hospital
environment.
If the user of
the Micro RPM
requires continued
operation during
power main
interruptions, it
is recommended
that the Micro RPM
be powered from
an uninterruptible
power supply or a
battery.
If incorrect
operation occurs, it
may be necessary
to position the
Micro RPM further
from sources of
power frequency
magnetic fields or
to install magnetic
shielding. The
power frequency
magnetic field
should be
measured in
the intended
installation location
to assure that it is
sufficiently low.