The ER75 Electro-Acoustic Ear Simulator is designed to provide an objective performance validation of audiometric equipment. Ease of use: Completely automatic, the ER75 will respond in a consistent manner to produce repeatable thresholds over the frequency range of 250Hz to 8000Hz. Any variations with previously recorded levels can be identified and acted upon immediately to ensure optimum performance of the audiometric test facility. Mobility: Compact and battery powered, the ER75 can be used for both static and mobile requirements. Amplivox is a British company, certified to ISO 9001:2000, with over 65 years proven experience in the design, manufacture and support of audiometric equipment. Features: • Totally automatic • Compact • Easy to use • Portable • Consistent results • Modern electronic design Package Includes: • ER75 Unit • Operating manual • Interconnecting lead • 2 x AA batteries Technical Specifications: • Output data • Frequency range (Hz): 250Hz to 8000Hz • Threshold (1KHz): 70dBHL • Repetition: 3dB • Hold time: 330ms Physical data: Dimensions (mm): 158 x 110 x 115 high Weight: 500 grams Power supply: 2 x 1.5V "AA" type batteries Construction: ABS plastic enclosure Operating temperature: 0°C to 40°C
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