Beurer FT 70 - Manual (Page 118)

118
Table 2
Guidance and manufacturer’s declaration – electromagnetic immunity
The FT70 Multi-function Thermometer is intended for use in the electromagnetic environment specifi ed below. The customer or the user
of the FT70 Multi-function Thermometer should assure that it is used in such an environment.
IMMUNITY test IEC 60601 test level Compliance level Electromagnetic environment – guidance
Electrostatic discharge (ESD)
IEC 61000-4-2 ± 6 kV contact
± 8 kV air ± 6 kV contact
± 8 kV air
Floor should be wood, concrete or ceramic tile. If fl oors are
covered with shythetic material, the relative humidity should
be at least 30%.
Electrical fast transient/burst
IEC 61000-4-4
±2 kV for power
supply lines
±1 kV air for input/out-
put lines
Not applicable
Mains power quality should be that of a typical commercial
or hospital environment.
Surge
IEC 61000-4-5 ±1kV differential mode
±2kV common mode
Not applicable
Mains power quality should be that of a typical commercial
or hospital environment.
Voltage dips, short interrup-
tions and voltage variations
on power supply input lines
IEC 61000-4-11
<5% U
T
(>95% dip in
U
T
for 0.5 cycle
40% U
T
(60% dip in
U
T
for 5 cycles
70% U
T
(30% dip in
U
T
for 25 cycles
5% U
T
(>95% dip in
U
T
for 5 sec
Not applicable
Mains power quality should be that of a typical commer-
cial or hospital environment. If the use of the FT70 Multi-
function Thermometer requires continued operation during
power mains interruptions, it is recommended that the FT70
Multi-function Thermometer be powered from an uninter-
ruptible power supply or a battery.
Power frequency (50/60 Hz)
magnetic fi eld IEC 61000-4-8
3 A/m 3 A/m
Power frequency magnetic fi elds should be at levels cha-
racteristic of a typical location in a typical commercial or
hospital environment.
NOTE: U
T
is the a.c. mains voltage prior to application of the test level.