General care instructions, Microphone care – Audioscan Verifit User Manual

Page 16

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Verifit

®

User's Guide Version 3.12

May 2015

General care instructions

Probe tubes are for single patient use only. They may be wiped with alcohol wipes for re-use with the same
patient, but must not be used with multiple patients. Attempts at ultrasonic cleaning usually result in cerumen
becoming lodged in the lateral end which causes irreparable damage to the probe microphones.

The case can normally be cleaned/dusted with a damp cloth, however if it is soiled we recommend wiping with
a mild solution of water and detergent, or with alcohol-impregnated wipes deemed safe for use on electronic
equipment. Parts that come into contact with patients (the probe module body, cable, and blue lanyard) should
be regularly wiped down with alcohol wipes.

Hearing instruments should be cleaned prior to introduction to the test chamber due to the difficulty of sanitizing
the acoustic foam. Custom hearing instruments must be cleaned with disinfectant towlettes (i.e. audiowipes)
prior to placing in the test for this reason and to minimize contamination of the blue putty used with the HA-1
coupler. The acoustic foam in the floor of the test chamber is easily removed and should be replaced if badly
worn or soiled.

The foam floor in the Verifit test chamber is printed on both sides and may be flipped over to double its life.

Audioscan recommends periodic replacement of the blue putty used with the HA-1 coupler to ensure
cleanliness. Both couplers and coupler mic can be wiped down with alcohol wipes as needed.

Ensure that all safety and usage recommendations on cleaning product packages are followed.

Microphone care

Coupler microphone:

1. DO NOT twist the cable when attaching a coupler to the coupler microphone. Turn only the coupler or

unplug the coupler microphone before turning it.

2. DO NOT leave the coupler microphone plugged in when transporting.

3. DO make sure that the 2cc coupler is tightly screwed to the coupler microphone when performing hearing

instrument tests. Coupler leakage can cause feedback and erratic response curves.

4. DO make sure the tubing on the BTE (HA-2) coupler is free from any cracks/tears.

5. DO make sure that any replacement tubing used on the BTE coupler is either obtained from Audioscan, or is

#13 heavy wall earmold tubing exactly 10 mm in length.

Probe microphone:

Debris can alter the probe module reference microphone calibration and frequency response and can
permanently clog the probe module port.

1. DO NOT reuse probe tubes. Probe tubes can be wiped with alcohol wipes for re-use with the same patient,

but must not be used with multiple patients. Attempts at ultrasonic cleaning usually result in cerumen
becoming lodged in the lateral end which causes irreparable damage to the probe microphones.

2. DO NOT attempt to open or repair the probe microphone. Attempting to repair the probe module may lead

to damage or alteration of the factory calibration.

3. DO keep the probe module and probe tubes in a clean area.

4. DO stow the probe module when not in use or when transporting the Verifit.

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