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Warnings Failure to follow these recommendations may severely reduce the amount of hearing protection provided by the earplugs. • Earplugs comply with EN-352 standard of measurement. • Eartips fit ear canal diameters of 6-13 mm. See Eartip section for details. •...
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Warnings (continued) • This product may be adversely affected by certain chemical substances. Further information should be sought from the manufacturer. • This earplug is provided with level-dependent attenuation. The wearer should check correct operation before use. If distortion or failure is detected, the wearer should refer to the manufacturer’s advice for maintenance and replacement of the battery.
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Identification Eartip Battery Door 2-position Protective Case Switch Cleaning Filter tool Tool and extra filters 312 Batteries...
Eartips ™ ACCU•Fit Eartips For Large Yellow foam (10-14 mm) go to: www.etymotic.com Selecting an eartip: The eartip that is most comfortable is the best choice, but it must seal well correct for maximum protection. When changing eartips make sure the eartip fits securely on the stem of the Battery Insertion device.
Insertion & Removal Insertion • Make sure the eartip is clean. • Pull the ear up and out while inserting (Fig. 1). • Twist and push gently until the eartip seals in the ear canal. (Fig. 2). • When using 3-flange eartips, Fig.
Operation ON/OFF Earplugs turn on and off by opening and closing the battery door. Note: It is not necessary to remove the battery as long as the door is open wide enough to disable the circuit. Battery Door Open = OFF 2-position Switch Closed = ON Toward battery door = LO position...
Battery Life Warning: Performance may deteriorate with battery usage. The typical period of continuous use that can be expected from the battery is 300 hours. Battery life is estimated at 2-3 weeks for continuous operation. Each device uses one #312 zinc-air battery. It is not necessary to recycle this battery.
Changing Filters Earplugs have special filters that enhance sound quality and prevent ear wax from entering the devices. A filter should be changed if the volume decreases or sound quality declines. ™ ACCU•Filter Removal Note: Use the tool to remove the filter. 1.
Troubleshooting Problem: No sound. What to do: • Check to see if the battery door is closed (device turned on). • Check battery; replace if dead. • Clean the eartip and the end of the device. • Check the filter - remove the filter - listen for sound to return before replacing the filter •...
• Do not expose to extreme heat or moisture. • Avoid dropping or hitting on a hard surface. • Use only accessories and spare parts from Etymotic Research, Inc. to ensure continued performance to specification. Storage • Always store earplugs in a clean, protective case.
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