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12
Technical Data
12.7 Electromagnetic interferences
Page 156
A
rt.
no.
: 0-48-
0227
Rev.:
g
DEFIGARD/PHYSIOGARD Touch 7
12.7 Electromagnetic interferences
The DEFIGARD/PHYSIOGARD Touch 7 is intended to be used in the
electromagnetic environments listed in the following tables. The user of the
DEFIGARD/PHYSIOGARD Touch 7 has to ensure that the device is operated in an
adequate environment.
12.7.1
Electromagnetic emissions
12.7.2
Electromagnetic immunity
Emission measurement
Compliance with the regula-
tions
Electromagnetic environment - explanations
HF emissions
CISPR 11
Group 1
DEFIGARD/PHYSIOGARD Touch 7
only uses HF energy for
internal functions. Therefore, HF emissions are very low and
interferences with electronic devices nearby are unlikely.
HF emissions
CISPR 11
Class B
DEFIGARD/PHYSIOGARD Touch 7
is suitable for use in all
establishments, including domestic establishments and those
directly connected to the public low-voltage power supply network
that supplies buildings used for domestic purposes.
Harmonics IEC 61000-3-2
Class B
Voltage fluctuations
IEC 61000-3-3
Compliant
Interference testing
IEC 60601 test level
Conformity level Electromagnetic environment - explanations
Electrostatic discharge
IEC 61000-4-2
± 8 kV contact
± 8 kV air
IEC 60601-1
conformity
Floors should be made of wood, concrete or ceramic
tiles. If floors are covered with synthetic material, relative
humidity should be at least 30%.
Electrical fast transient/
burst
IEC 61000-4-4
± 2 kV for power supply lines
± 1 kV for input/output lines
IEC 60601-1
conformity
Mains power quality should be that of a typical
commercial and/or hospital environment.
Surge
IEC 61000-4-5
± 1 kV between conductors
± 2 kV conductor-earth
IEC 60601-1
conformity
Mains power quality should be that of a typical
commercial and/or hospital environment.
Voltage dips, short
interruptions and voltage
variations on power
supply input lines
IEC 61000-4-11
0 % nominal voltage during 0.5 period
40 % nominal voltage during 100 ms at
50/60 Hz
70 % nominal voltage during 500 ms at
50/60 Hz
0% nominal voltage during 5 s at 50/60
Hz
IEC 60601-1
conformity
Mains power quality should be that of a typical
commercial and/or hospital environment. If the user of
the DEFIGARD/PHYSIOGARD Touch 7 is reliant on
permanent operation even in the case of a power failure,
it is suggested connecting the
DEFIGARD/
PHYSIOGARD Touch 7
to an uninterruptible power
supply or use it with a battery.
Power frequency (50/60
Hz) magnetic field
IEC 61000-4-8
30 A/m
30 A/m
Power frequency magnetic fields should be that of a
typical commercial and/or hospital environment.
Note: U
T
indicates the AC voltage of the mains before the test level.
Interference testing
IEC 60601 test level
Conformity lev-
el
Electromagnetic environment - explanations
Recommended minimum distances
Portable and mobile HF telecommunication devices must
keep the recommended minimum distance from the
DEFIGARD/PHYSIOGARD Touch 7
and all its
components, incl. cables; the recommended minimum
distance is calculated based on the transmitter's frequency.