User's Manual

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CHAPTER 4
Maintenance
The Trumpet device do not require any special periodic maintenance other
than calibration and normal cleaning, both of which are described in this
chapter.
4.1 CALIBRATION AND EQUALIZATION (REM)
The calibration of the reference microphone must be validated by
technicians approved by Inventis S.r.l. The operation should be
carried out at least once every 12 months, and whenever the
transducer is replaced.
Every time there is a change to the geometry of the surroundings in
which the device is used, the operator must run the speaker
equalization procedure (for further information, refer to “Maestro
– Fitting and hearing aid test functionalities – User Manual”).
Every time the probe tube is changed, consequently for each new
patient, the probe microphone must be recalibrated (for further
information, refer to “Maestro – Fitting and hearing aid test
functionalities – User Manual”).
When cleaning operations of any kind are required, the instrument
must first be disconnected and switched off by unplugging the
power cord and the USB cable.
Internal inspection and servicing of the instrument must be
entrusted entirely to technicians approved by Inventis S.r.l.
Transducers are manufactured utilizing ultra-fragile diaphragms
that could be damaged in the event of impact. Handle with care
during maintenance operations.