MTV1000 Ventilator System
92
User’s Manual
Voltage
dips,
short
interruptions and
voltage variations
on power supply
input lines
IEC 61000-4-11
< 5 %
U
т
(> 95 % dip in
U
т)
for 0.5cycle
40 %
U
т
(60 % dip in
U
т )
for 5 cycle
70 %
U
т
(30 % dip in
U
т)
for 25 cycle
<5 %
U
т
(< 95 % dip in
U
т )
for 5 s
< 5 %
U
т
(> 95 % dip in
U
т)
for 0.5cycle
40 %
U
т
(60 % dip in
U
т )
for 5 cycle
70 %
U
т
(30 % dip in
U
т)
for 25 cycle
<5 %
U
т
(< 95 % dip in
U
т )
for 5 s
Mains power quality should be
that of a typical commercial or
hospital environment. If the user
of the MTV1000 image intensifier
requires
continued
operation
during power mains interruptions,
it is recommended that the
MTV1000 image intensifier be
powered from an uninterruptible
power supply.
Power frequency
(50/60 Hz)
magnetic field
IEC 61000-4-8
3 A / m
3 A / m
Power frequency magnetic fields
should be at levels characteristic
of a typical location in a typical
commercial
or
hospital
environment.
NOTE
U
т is the a.c. mains voltage prior to application of the test level.
7.7.3.
Guidance and manufacturer’s declaration –
electromagnetic immunity
The MTV1000 is intended for use in the electromagnetic environment specified below.
The customer or the user of the MTV1000 should assure that it is used in such an
environment.
Immunity
test
IEC 60601 test
level
Compliance
level
Electromagnetic environment - guidance
Conducted
RF
IEC 61000-
4-6
Radiated RF
IEC 61000-
4-3
3 Vrms
150 kHz to 80
MHz
3 V / m
80 MHz to 2.5
GHz
3 Vrms
150 kHz to
80 MHz
3 V / m
80 MHz to
2.5 GHz
Mobile RF communications equipment should be
used no closer to any part of the MTV1000,
including cables, than the recommended
separation distance calculated from the equation
applicable to the frequency of the transmitter.
Recommended separation distance
where
P
is the maximum output power rating of
the transmitter in watts (W) according to the
transmitter manufacturer and
d
is the
recommended separation distance in meters
(m).
Field strengths from fixed RF transmitters, as
deter-mined by an electromagnetic site survey,
a
80 MHz to 800 MHz
800 MHz to 2.5 GHz
