D-0121151-B – 2018/11
AD528 - Instructions for Use - EN Page 27
4 Maintenance
• Before cleaning always switch off and disconnect from the power supply
• Follow local best practice and safety guidelines if available
• Use a soft cloth lightly dampened with cleaning solution to clean all exposed surfaces
• Do not allow liquid to come in contact with the metal parts inside the earphones/headphones
• Do not autoclave, sterilize or immerse the instrument or accessory in any fluid
• Do not use hard or pointed objects to clean any part of the instrument or accessory
• Do not let parts that have been in contact with fluids dry before cleaning
• Rubber ear-tips or foam ear-tips are single use components
• Ensure that isopropyl alcohol does not come into contact with any screens on the instruments
• Ensure that isopropyl alcohol does not come into contact with any silicone tubes or rubber parts
Recommended cleaning and disinfection solutions
• Warm water with mild, nonabrasive cleaning solution (soap)
• Normal hospital bactericides
• 70% isopropyl alcohol only on hard cover surfaces
Procedure
• Clean the instrument by wiping outer case with a lint free cloth lightly dampened in cleaning solution
• Clean cushions and patient hand switch and other parts with a lint free cloth lightly dampened in
cleaning solution
• Make sure to not get moisture in the speaker portion of the earphones and similar parts
To maintain electrical safety during the lifetime of the instrument, a safety
check must be made regularly according to IEC 60601-1, Class II, Type B
applied parts; e.g. when yearly calibration is done.
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