telephones and radio, ham radio, AM and FM radio or TV transmissions. To evaluate the
electromagnetic environment created by fixed RF transmitters, it may be necessary to conduct
an electromagnetic survey on site. If the field strength measured at the point where the Timpani
is in use exceeds the applicable RF level of compliance indicated above, check the operation of
the instrument closely, to ensure that its performance levels meet the required standards. If
abnormalities are observed, then additional measures may be necessary, such as changing the
directional position or the location of the Timpani.
b) In the frequency range from 150 kHz to 80 MHz, field strengths must be lower than 3 V/m.
Manufacturer's indications and declaration - electromagnetic immunity
Function requiring verification to exclude
unacceptable risks
Pass/fail acceptance criteria
Sound generator operating correctly
No unwanted sound from transducers
exceeding 80 dB; lockup or restart of the
device is acceptable
Tympanometry on test cavity, conducted
correctly in normal operating conditions
Flat tympanometry curve, ECV indication
equivalent to nominal value of cavity +/-
0.1ml
ESD: presence of artefacts in tympanometry
recognizable by skilled professional, HW
error, lockup or restart of device — all these
are acceptable
Contains transmitter module in compliance with EN 301 489-1 and
EN 300 328 standards
The device emits radio frequencies in the 2.4 GHz band, class 1
Contains transmitter module in compliance with EN 301 489-1 and
EN 300 328 standards
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