Voltage dips,
short
interruptions and
voltage variations
in power supply
input lines
IEC 61000-4-11
Power frequency
(50/60Hz)
magnetic field
IEC 61000-4-8
NOTEUT is the a.c. mains voltage prior to application of the test level.
3 A/m 3 A/m
Power frequency magnetic fields should
be at levels characteristic of a typical
location in a typical commercial or
hospital environment.
<5%UT
(>95 dip inUT)
for 0.5 cycle
40%UT
(60% dip inUT)
for 5 cycles
70% UT
(30% dip in
UT) for 25
cycles<5%UT
(>95% dip in
UT for 5 s)
N/A
Mains power quality should be that of a
typical commercial or hospital
environment.
If the user of the infrared thermometer
requires continued operation during
power mains interruptions, it is
recommended that the infrared
thermometer be powered from an
uninterrupted power supply or a battery.
The infrared thermometer is intended for use in the electromagnetic environment specified
below. The customer or the user of the infrared thermometer should assure that it is used in
such an environment.
Conducted RF
IEC 61000-4-6
Immunity test
Guidance and manufacturer ’s declaration-electromagnetic immunity
3Vrms 150kHz
to 80MHz
IEC 60601
test level
Compliance
level
N/A
Portable and mobile RF communications
equipment should be used no closer to
any part of the infrared thermometer
including cables, than the recommended
separation distance calculated from the
equation applicable to the frequency of
the transmitter.
Recommended separation distance
d=1.2 P.
Electromagnetic environment-guidance
21
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