Shure PSM 900 User Manual page 3

PERMANENT HEARING DAMAGE. USE AS LOW A VOLUME AS POSSIBLE.
In order to use this system safely, avoid prolonged listening at excessive sound pressure levels. Please use the fol-lowing guidelines
established by the Occupational Safety Health Administration (OSHA) on maximum time exposure to sound pressure levels before
hearing damage occurs.
It is difficult to measure the exact Sound Pressure Levels (SPL) present at the eardrum in live applications. In addition to the volume
setting on the PSM, the SPL in the ear is affected by ambient sound from floor wedges or other devices. The isolation provided by
the fit of quality earphones is also an important factor in determining the SPL in the ear.
Here are some general tips to follow in the use of this product to protect your ears from damage:
1. Turn up the volume control only far enough to hear properly.
2. Ringing in the ears may indicate that the gain levels are too high. Try lowering the gain levels.
3. Have your ears checked by an audiologist on a regular basis. If you experience wax buildup in your ears, stop using the sys-
tem until an audiologist has examined your ears.
4. Wipe the earphones with an antiseptic before and after use to avoid infections. Stop using the earphones if they are causing
great discomfort or infection.
maintenance instructions in the literature accompanying this unit
WARNING!
USING THIS SYSTEM AT EXCESSIVE VOLUMES CAN CAUSE
90 dB SPL at 8 hours
95 dB SPL at 4 hours
100 dB SPL at 2 hours
105 dB SPL at 1 hour
110 dB SPL at 1/2 hour
115 dB SPL at 15 minutes
120 dB SPL — avoid or hearing damage may occur
This symbol indicates important operating and
ENGLISH
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