zebris Medical GmbH
FDM Technical Data and Operating Instructions
Page 52/54
Guidelines and Manufacturer's Statement - Electromagnetic Emission
The FDM-T force-distribution measuring system is intended for use in the electromagnetic environment described below. The customer
or user of the FDM-T force-distribution measuring system should ensure that it is operated in such an environment.
Emitted interference measure-
ments
Compliance
Electromagnetic environment guidelines
RF emissions
acc. to CISPR 11
Group 1
The FDM-T force-distribution measuring system uses RF energy ex-
clusively for its internal functions. Therefore its RF emission is very
low and it is unlikely that electronic equipment in close proximity will
experience interference.
RF emissions
acc. to CISPR 11
class B
The FDM-T force-distribution measuring system is intended for use in
all facilities including those in residential areas and those directly con-
nected to a public utility network also supplying buildings used for res-
idential purposes.
Emission of harmonic oscillations
acc. to IEC 61000-3-2
class B
Emission of voltage fluctuations /
flickers acc. to IEC61000-3-3
in compliance
Guidelines and Manufacturer's Statement - Electromagnetic Interference Immunity
The FDM-T force-distribution measuring system is intended for use in the electromagnetic environment described below. The cus-
tomer or user of the FDM-T force-distribution measuring system should ensure that it is operated in such an environment.
Interference immunity
tests
IEC 60601 test levels
Compliance level
Electromagnetic environment guidelines
Electrostatic discharge
(ESD)
acc. to IEC 61000-4-2
± 6 kV contact discharge
± 8 kV atmospheric
discharge
± 6 kV contact discharge
± 8 kV atmospheric
discharge
Flooring should be of wood or concrete or
laid with ceramic tiles. If the flooring is made
of synthetic material, the relative humidity
must be at least 30%.
Fast transient
electrical interfer-
ences/bursts
acc. to IEC 61000-4-4
± 2 kV for power lines
± 1 kV for input
and output lines
± 2 kV for power lines
± 1 kV for input
and output lines
The quality of the supply voltage should be
the same as the voltage of a typical business
or hospital environment.
Surges acc. to
IEC 61000-4-5
± 1 kV differential mode
voltage
± 2 kV common mode
voltage
± 1 kV differential mode
voltage
± 2 kV common mode
voltage
The quality of the supply voltage should be
the same as the voltage of a typical business
or hospital environment.
Blackouts, brownouts and
fluctuations of the power
supply acc. to
IEC 61000-4-11
< 5% U
T
(> 95% crash of the U
T
)
for ½ period
40% U
T
(60% crash of the U
T
)
for 5 periods
70% U
T
(30% crash of the U
T
)
for 25 periods
< 5% U
T
(> 95% crash of the U
T
)
for 5 s
< 5% U
T
(> 95% crash of the U
T
)
for ½ period
40% U
T
(60% crash of the U
T
)
for 5 periods
70% U
T
(30% crash of the U
T
)
for 25 periods
< 5% U
T
(> 95% crash of the U
T
)
for 5 s
The quality of the supply voltage should be
the same as the voltage of a typical business
or hospital environment. If the user of the
FDM-T force-distribution measuring system
requires the continuation of functionality also
after power interruptions/disruptions, it is
recommended to provide the FDM-T force-
distribution measuring system with power
from an uninterruptible power supply.
Magnetic field with supply
frequency (50/60 Hz)
acc. to IEC 61000-4-8
3 A/m
Not tested as no influence is
possible on the device within
the specified test level. (see
Note B)
Magnetic fields of the mains power fre-
quency should comply with the typical values
of a business and hospital environment.
NOTE
U
T
is the AC main voltage prior to applying the test levels.
