BT-740 Operation manual
119
P/N : 740-ENG-OPM-EUR-D03
Bistos Co., Ltd.
2018.05
22.3 Electromagnetic immunity
The BT-740 is intended for use in the electromagnetic environment specified below.
The customer or the user of the BT-740 should assure that it is used in such an
environment.
Immunity test
IEC 60601
Test level
Compliance level
Electromagnetic
environment -guidance
Electrostatic
discharge (ESD)
IEC 61000-4-2:2009
±8 kV Contact
±15 kV air
±8 kV Contact
±15 kV air
Floors should be wood,
concrete or ceramic tile. If
floors are covered with
synthetic material, the
relative humidity should
be at least 30 %.
Electrical fast
transient/burst
IEC 61000-4-4:2004
±2 kV for power
supply lines
±1 kV for
input/output lines
(>3m)
±2 kV for power
supply lines
±1 kV for
input/output lines
(>3m)
Mains power quality
should be that of a typical
commercial or hospital
environment.
Surge
IEC 61000-4-5:2006
±1 kV differential
mode
±2 kV common
mode
±1 kV differential
mode
±2 kV common
mode
Mains power quality
should be that of a typical
commercial or hospital
environment.
Voltage dips, short
interruptions and
voltage variations on
power supply input
lines
IEC 61000-4-11:2004
< 5 %
U
т
(> 95 %
dip in
U
т)
for 0.5
cycles
40 %
U
т
(60 % dip
in
U
т )
for 5 cycles
70 %
U
т
(30 % dip
in
U
т)
for 25
cycles
<5 %
U
т
(> 95 %
dip in
U
т )
for 5 s
< 5 %
U
т
(> 95 %
dip in
U
т)
for 0.5
cycle
40 %
U
т
(60 % dip
in
U
т )
for 5 cycles
70 %
U
т
(30 % dip
in
U
т)
for 25
cycles
<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 BT-550 image
intensifier requires
continued operation
during power mains
interruptions, it is
recommended that the
BT-740 be powered from
an uninterruptible power
supply.
Power frequency (50
Hz and 60 Hz)
magnetic field
IEC 61000-4-8:2010
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.
