Operating Instruction

6
1.
Guidance and manufacturer’s declaration – electromagnetic immunity
The model PT 200 is intended for use in the electromagnetic environment specified below. The
customer or the user of the model PT 200 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
±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
±2 kV for power
supply lines and
patient coupled
lines
N/A
Mains power quality should be
that of a typical commercial or
hospital environment.
Surge
IEC 61000-4-5
±1 kV line(s)
and neutral
N/A
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
<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 5s
N/A
Mains power quality should be
that of a typical commercial or
hospital environment. If a dips or
an interruption of mains power
occurs, the current of the model
PT 200 may be dropped off from
normal level, it may be necessary
to use uninterruptible power
supply or a battery.
Power frequency
(50/60 Hz)
magnetic field
IEC 61000-4-8
3 A/m
3A/m
Power frequency magnetic
fields should be at levels
characteristic of a typical
location in a typical commercial
or hospital environment.
NOTE U
T
is the a.c. mains voltage prior to application of the test level