otometrics HDA 300, User Manual

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• Insert the red headphone plug into the red headphone socket in the audi-
ometer connection panel.
• Insert the blue headphone plug into the blue headphone socket in the audi-
ometer connection panel.
Note
• Blue corresponds to Left and Red corresponds to Right.
For more information, see the Reference Manual for the audiometer.
6 Using HDA 300
1. Ask the test person to remove glasses, earrings or any other items that might
keep the headphones from fitting properly.
2. Place the headphones on the test person with the red ear cup on the right
ear.
3. Adjust the headphones so that the ears are completely inside the ear pads.
The test person should feel even, gentle pressure around their ears and the head-
band should fit closely to the head.
The headphones are in constant contact with the patient, and should therefore be
kept clean. See the cleaning instructions in
Cleaning ► 7 .
7 Storage and handling
• Do not store the headphones in a position that straightens the headband. If the
headband is straightened, it can lose elasticity, and the pressure of the head-
phones against the ears can be reduced.
• Do not position the headphones so that someone is likely to trip over the
cable.
6 Otometrics - HDA 300