BT-720 Operation manual
P/N:720-ENG-OPM-ENG-R03
Bistos Co., Ltd.
2020.10
35
15.3 Electromagnetic immunity
The BT-720 is intended for use in the electromagnetic environment specified below.
The customer or the user of the BT-720 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-720
image intensifier
requires continued
operation during power
mains interruptions, it is
recommended that the
BT-720 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.
