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D-0126050 rev 1 - 270+ Operating Manual
Guidance and manufacturer’s declaration – electromagnetic emissions
The Model 270+ Audiometer is intended for use in the electromagnetic environment specified below. The
customer or user of the Model 270+ Audiometer should assure that it is used in such an environment.
Electromagnetic environment – guidance
The Model 270+ Audiometer uses RF energy only for its
internal function. Therefore, its RF emissions are very low
and are not likely to cause interference in nearby electronic
equipment.
The Model 270+ Audiometer is 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
Voltage fluctuations/flicker
emissions
IEC 61000-3-3
Guidance and manufacturer’s declaration – electromagnetic immunity (1)
The Model 270+ Audiometer is intended for use in the electromagnetic environment specified below. The
customer or user of the Model 270+ Audiometer should assure that it is used in such an environment.
Electromagnetic environment – guidance
Electrostatic
Discharge (ESD)
IEC 61000-4-2
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
±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
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