Nissei WSK-1011 Instruction Manual page 89

Table 202. Guidance and manufacturer's declaration - electromagnetic immunity
WSK-1011 is intended for use in the electromagnetic environment specifi ed below. The customer or the user of WSK-1011 should assure that it is
used in such an environment.
Immunity test
Electrostatic discharge
(ESD)
IEC 61000-4-2
Electrical fast transient/
burst
IEC 61000-4-4
Surge IEC 61000-4-5
Voltage dips, short
interruptions and voltage
variations on power supply
input lines IEC 61000-4-11
Power frequency (50/ 60
Hz)
magnetic fi eld IEC 61000-
4-8
NOTE: U T is the a.c. mains voltage prior to application of the test level.
IEC 60601 test level
±6 kV contact
±8 kV air
±2 kV for power supply lines
±1 kV for input/output lines
±1 kV diff erential mode
±2 kV common mode
<5% U T (>95% dip in U T ) for
0,5 cycle
40% U T (60% dip in U T ) for
5 cycles
70% U T (30% dip in U T ) for
25 cycles
<5% U T (>95% dip in U T ) for
5 sec
3 A/m
Compliance level
±6 kV contact
±8 kV air
±2 kV for power supply lines
±1 kV for input/output lines
±1 kV diff erential mode
±2 kV common mode
<5% U T (>95% dip in U T ) for
0,5 cycle
40% U T (60% dip in U T ) for
5 cycles
70% U T (30% dip in U T ) for
25 cycles
<5%U T (>95% dip in U T ) for
5 sec
3 A/m
89
Electromagnetic environment – guidance
Floors should be wood, concrete or ceramic tile.
If fl oors are covered with synthetic material, the
relative humidity should be at least 30 %.
Mains power quality should be that of a typical
commercial or hospital environment.
Mains power quality should be that of a typical
commercial or hospital environment.
Mains power quality should be that of a
typical commercial or hospital environment.
If the user of WSK-1011 requires continued
operation during power mains interruptions, it
is recommended that WSK-1011 is be powered
from an uninterruptible power supply or a
battery.
Power frequency magnetic fi elds should be at
levels characteristic of a typical location in a
typical commercial or hospital environment.