Soehnle 7752 Gebrauchsanweisung Seite 47

8. Notes on electromagnetic compatibility
Guidelines and manufacturer's declaration - electromagnetic immunity
The scale of type series 7752 is intended for operation in the ELECTROMAGNETIC ENVIRONMENT indicated below.
The customer or the user of the 7752 scales should ensure that it is used in such an environment.
Immunity test
Discharging static elec-
tricity (ESD) according
to IEC 61000-4-2
Fast transient electrical
disturbances/bursts ac-
cording to IEC 61000-4-5
Surges according to IEC
61000-4-5
Voltage dips, short inter-
ruptions and
fluctuations of the
supply voltage
according to
IEC61000-4-11
Magnetic field at supply
frequency (50/60 Hz)
according to IEC
61000-4-8
NOTE: UT is the mains AC voltage before applying the test level
IEC 60601 test level Compliance level
6 kV contact +6 kV contact
discharge (indirect) discharge (indirect)
8 kV 8 kV
air discharge air discharge
2 kV 2 kV
for power lines for power lines
1 kV 1 kV
for input and output for input and output
lines lines
1 kV 1 kV
Voltage outer Voltage outer
conductor - outer conductor - outer
conductor conductor
1 kV 1 kV
Voltage outer Voltage outer
conductor - earth conductor - earth
< 5% UT < 5% UT
for ½ period for ½ period
(> 95 % intrusion) (> 95 % intrusion)
40% UT 40% UT
for 5 period for 5 period
(60 % intrusion) (60 % intrusion)
70% UT
70% UT
for 25 period for 25 period
(30 % intrusion) (30 % intrusion)
< 5% UT < 5% UT
for 5 s for 5 s
(> 95 % intrusion) (> 95 % intrusion)
3 A/m 3 A/m
Electromagnetic environment -
guidelines
Floors should be made of wood or
concrete or be covered with ceramic
tiles. If the floor is covered with
synthetic material, the relative
humidity must be at least 30%.
The quality of the supply voltage
should correspond to that of a typical
business or hospital environment.
The quality of the supply voltage
should correspond to that of a typical
business or hospital environment.
The quality of the supply voltage
should correspond to that of a typical
business or hospital environment.
If the user of the 7752 scale requires
continued FUNCTION even if the
power supply is interrupted, it is
recommended that the 7752 scale be
powered from an uninterruptible
power supply.
Magnetic fields at the mains
frequency should correspond to the
typical values found in the business
and hospital environment.
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