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.