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Table 2
Guidance and manufacturer's declaration – electromagnetic immunity
The FT 65 Multi-function Thermometer is intended for use in the electromagnetic environment specifi ed below. The customer or the user
of the FT 65 Multi-function Thermometer should assure that it is used in such an environment.
IMMUNITY test
Electrostatic discharge (ESD)
IEC 61000-4-2
Electrical fast transient/burst
IEC 61000-4-4
Surge
IEC 61000-4-5
Voltage dips, short interrup-
tions and voltage variations
on power supply input lines
IEC 61000-4-11
Power frequency (50/60 Hz)
magnetic fi eld IEC 61000-4-8
NOTE: U
is the a.c. mains voltage prior to application of the test level.
T
110
IEC 60601 test level
Compliance level Electromagnetic environment – guidance
± 6 kV contact
± 6 kV contact
± 8 kV air
± 8 kV air
±2 kV for power
supply lines
Not applicable
±1 kV air for input/out-
put lines
±1 kV differential mode
Not applicable
±2 kV common mode
<5% U
(>95% dip in
T
U
for 0.5 cycle
T
40% U
(60% dip in
T
U
for 5 cycles
T
Not applicable
70% U
(30% dip in
T
U
for 25 cycles
T
5% U
(>95% dip in
T
U
for 5 sec
T
3 A/m
3 A/m
Floor should be wood, concrete or ceramic tile. If fl oors
are covered with shythetic material, the relative humidity
should be at least 30%.
Mains power quality should be that of a typical commercial
or hospital environment.
Mains power quality should be that of a typical commercial
or hospital environment.
Mains power quality should be that of a typical commer-
cial or hospital environment. If the use of the FT 65 Multi-
function Thermometer requires continued operation dur-
ing power mains interruptions, it is recommended that the
FT 65 Multi-function Thermometer be powered from an
uninterruptible power supply or a battery.
Power frequency magnetic fi elds should be at levels char-
acteristic of a typical location in a typical commercial or
hospital environment.
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