Welch Allyn 35900-NP-TE, Directions For Use Manual

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Electromagnetic emissions
RF emissions
CISPR 11 Group 1 The Welch Allyn® OAE Hearing Screeneruses RF energy only for its
internal function. Therefore, its RF emissions are very low and are not
likely to cause any interference in nearby electronic equipment.
RF emissions
CISPR 11 Class A
The Welch Allyn® OAE Hearing Screeneris suitable for use in all
establishments other than domestic and those directly connected to the
public low-voltage power supply network that supplies buildings used
for domestic purposes.
Harmonic emissions
IEC 61000-3-2 Class A
Voltage fluctuations/
flicker emissions
IEC 61000-3-3
Complies
Electromagnetic immunity
The Welch Allyn® OAE Hearing Screeneris intended for use in the electromagnetic environment specified below. The
customer or the user of the Welch Allyn® OAE Hearing Screenershould assure that it is used in such an environment.
Immunity test IEC 60601 test level Compliance level Electromagnetic environment - guidance
Electrostatic discharge
(ESD)
IEC 61000-4-2
±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
IEC 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.
Surge
IEC 61000-4-5
±1 kV differential mode
±2 kV common mode ±1 kV differential mode
±2 kV common mode
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
IEC 61000-4-11
<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
<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
Mains power quality should be that of a typical
commercial or hospital environment. If the user
of the Welch Allyn® OAE Hearing
Screenerrequires continued operation during
power mains interruptions, it is recommended
that the Welch Allyn® OAE Hearing
Screenerbe powered from an uninterruptible
power supply or a battery.
Power frequency
(50/60 Hz) magnetic
field IEC 61000-4-8
3 A/m 3 A/m Power frequency magnetic fields should be at
levels characteristic of a typical location in a
typical commercial or hospital environment.
Note: U
T
is the a.c. mains voltage prior to application of the test level.
Directions for use Standards and compliance 49