INSTRUCTIONS FOR USE DA 270, DA 370, DA 280, DA 380
UM_EN_DA270_DA280_DA370_DA380_m2015_2019-04_ver1.9 64 / 67
17 REQUIREMENTS ON ELECTROMAGNETIC COMPATIBILITY ACCORDING TO EN 60601-1-2
The use of accessories other that those stated in the Instructions for Use of the dental unit may result in
increased electromagnetic emissions or decrease electromagnetic immunity and invoke disfunction of the
dental unit
Portable RF communications equipment must not be used at the distance of less than 30 cm from any part
of the dental unit. Otherwise the functionality of the dental unit may be impaired
17.1 Electromagnetic emissions
Emissions test
Compliance
Electromagnetic environment
RF emissions CISPR11
Group 1
The dental unit uses RF energy only for its function. Its RF
emissions are very low and are not likely to cause any
interference in nearby electronic equipment.
RF emissions CISPR11
Class B
The dental unit is designed to be used in all environments,
including residential area and it can be directly connected to
the public mains network.
Harmonic emissions EN 61000-3-2
Class A
Voltage fluctuations/flicker emissions
EN 61000-3-3
Complies
17.2 Electromagnetic immunity
The dental unit is intended for use in the electromagnetic environment meeting the requirements in Table 17.2.
The customer and/or the user of the dental unit must assure that the dental unit is used in such an environment.
Table 17.2
Immunity test
EN 60601
test level
Compliance
Electromagnetic environment
Immunity to electrostatic
discharge according to
EN 61000-4-2
Contact discharge ±6 kV
Air discharge ± 8 kV
Contact discharge ±6 kV
Air discharge ±8 kV
Floors should be wood, concrete or
ceramic tile. If floors are covered
with synthetic material, the relative
humidity should be at least 30%.
Immunity to electrical fast
transients and bursts
according to
EN 61000-4-4
±2 kV for power supply
lines
±1 kV for input/output lines
±2 kV for power supply
lines
±1 kV for input/output
lines
Mains power quality should be that
of a typical commercial or hospital
environment.
Immunity to surges
according to
EN 61000-4-5
±1 kV line(s) to line(s)
±2 kV line(s) to earth
±1 kV line(s) to line(s)
±2 kV line(s) to earth
Mains power quality should be that
of a typical commercial or hospital
environment.
Immunity to power
frequency magnetic field
according to
EN 61000-4-8
3 A/m
3 A/m
Power frequency magnetic fields
should not exceed values typical for
commercial or hospital
environment.
Immunity to voltage dips,
short interruptions and
voltage variations on power
supply input lines
according to
EN 61000-4-11
< 5% UT (> 95% dip in UT
for 0,5 cycle)
40% UT (60% dip in UT for
5 cycles)
70% UT (30% dip in UT for
25 cycles)
< 5% UT (> 95% dip in UT
for 5 cycles)
< 5% UT (> 95% dip in
UT for 0,5 cycle)
40% UT (60% dip in UT
for 5 cycles)
70% UT (30% dip in UT
for 25 cycles)
< 5% UT (> 95% dip in
UT for 5 cycles)
Mains power quality should be that
of a typical commercial or hospital
environment.
If the user of the dental unit
requires continued operation during
power mains interruption, it is
recommended that the dental unit
be connected to a backup source.
