User's Manual

Operator’s Manual ZM-920PA/921PA/930PA/931PA 67
Immunity test
IEC 60601 test
level
Compliance
level
Electromagnetic
environment -
guidance
Electrical fast
transient/ burst
IEC 61000-4-4
±2 kV for power
supply lines
±1 kV for input/
output lines
Not applicable
—
Surge
IEC 61000-4-5
±1 kV differential
mode
±2 kV common
mode
Not applicable
—
Voltage
dips, short
interruptions
and voltage
variations on
power supply
input lines
IEC 61000-4-11
<5% UT (>95% dip
in UT) for 0.5 cycle
40% UT (60% dip
in UT) for 5 cycles
70% UT (30% dip
in UT) for 25 cycles
<5% UT (>95% dip
in UT) for 5 s
Not applicable
—
Power
frequency
(50/60 Hz)
magneticeld
IEC 61000-4-8
3 A/m 3 A/m Power frequency
magneticelds
should be at levels
characteristic of a
typical location in a
typical commercial or
hospital environment.
NOTE: UT is the AC mains voltage prior to application of the test level
Avoiding Electromagnetic Interference (Impedance Respiration)
Impedance respiration measurement is very sensitive and affected by
electromagnetic interference. Technological limitations do not allow immunity
levelshigherthan1V/mforradiatedRFelectromagneticelds.Electromagnetic
eldswitheldstrengthsabove1V/mmaycausemeasurementerror.Donotuse
electrically radiating equipment near the impedance respiration measurements.