Operating Manual
6
Interference
Immunity Tests
IEC 60601 Test
Level
Compliance Level Electromagnetic Environment
- Guidelines
Discharge of static
electricity (ESD)
Acc. to IEC 61000-
4-2
± 6 kV contact
discharge
± 8 kV air dis-
charge
± 6 kV contact
discharge
± 8 kV air dis-
charge
Floors should be made of
wood or concrete or covered
in ceramic tiles. If the oor is
covered with synthetic mate-
rial, the relative air humidity
must be at least 30 %.
Fast-transient
interference test/
Bursts acc. to IEC
61000-4-4
± 2 kV for power
supply lines
± 1 kV for input
and output lines
± 1 kV for power
supply lines
Not applicable
The quality of the supply
voltage should correspond
to that in typical business or
hospital surroundings.
Surges acc. to IEC
61000-4-5
± 1 KV voltage
outer conduc-
tor-outer conduc-
tor
± 2 kV voltage
outer conductor -
ground
± 1 KV voltage
outer conduc-
tor-outer conduc-
tor
Not applicable
The quality of the supply
voltage should correspond
to that in typical business or
hospital surroundings.
Voltage dips, short
interruptions and
uctuations in the
supply voltage acc.
to IEC 61000-4-11
< 5 % Ut
< (> 95 % dip in
Ut) for 1/2 period
40 % Ut (60 % dip
in Ut) for 5 periods
70 % Ut (30 %
dip in Ut) for 25
periods
< 5 % Ut (> 95 %
dip in Ut) for 5 sec
0 % Ut
< (> 95 % dip in Ut)
for 1/2 period
40 % Ut (60 % dip
in Ut) for 5 periods
70 % Ut (30 %
dip in Ut) for 25
periods
0 % Ut (> 95 % dip
in Ut) for 5 sec
The quality of the supply
voltage should correspond
to that in typical business or
hospital surroundings. If the
iMRS one user requires con-
tinuous operation, even when
interruptions in the power
supply occur, supplying the
iMRS one from an uninter-
ruptible power supply or a
battery is recommended.
Magnetic eld at a
supply frequency
(50/60 Hz) acc. to
IEC 61000-4-8
3 A/m 3 A/m Magnetic elds at power grid
frequency should correspond
to values typical for a busi-
ness or hospital environment.
Comment: Ut is the AC power voltage before the application of the test level.