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16
9. Specifications and electrical ratings
Guidance and manufacturer’s declaration – electromagnetic immunity
The Jazz Otoscope / Ophthalmoscope is intended for use in the electromagnetic environment specified below. The customer or the user of the
Jazz Otoscope / Ophthalmoscope should assure that it is used in such an environment.
Immunity test
IEC 60601 Test level
Compliance level
Electromagnetic environment - guidance
Electrostatic
discharge (ESD)
IEC61000-4-2
± 6 kV contact
± 8 kV air
± 6 kV contact
± 8 kV air
Floors should be wood, concrete or ceramic tile. If floors
are covered with synthetic material, the relative humidity
should be at least 30%.
Electrical fast
transient / burst
IEC61000-4-4
± 2 kV for power supply lines
± 1 kV for input / output lines
Not Applicable
Mains power quality should be that of a typical
commercial or hospital environment.
Surge
IEC61000-4-5
± 1 kV line(s) to line(s)
± 2 kV line(s) to earth
Not Applicable
Mains power quality should be that of a typical
commercial or hospital environment.
Voltage dips, short
interruptions and
voltage variations on
power supply
input lines
IEC61000-4-11
<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 s
Not Applicable
Mains power quality should be that of a typical commercial
or hospital environment.
Power frequency
(50/60 Hz) magnetic
field
IEC61000-4-8
3 A/m
3A/m
If incorrect operation occurs, it may be necessary to
position the Jazz Otoscope / Ophthalmoscope further
from sources of power frequency magnetic fields or
to install magnetic shielding. The power frequency
magnetic field should be measured in the intended
installation location to assure that it is sufficiently low.
Note
U
T
is the a. c. mains voltage prior to application of the test level.
