Shubham Furniture & Aluminium
Pune, Maharashtra
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Product Description
ER-3C INSERT EARPHONES for Audiometry
Incorporates “touch-proof” electrical connection for safety
• Duplicates ER-3A smooth frequency response
• 30+ dB external noise exclusion – equivalent to a single-wall boothwhen used with deeply-sealed foam eartips
• 70+ dB isolation (interaural attenuation) between ears; reduces the need for masking
• Reduces test/retest variability compared to supra-aural earphones
• Eliminates test errors due to collapsed ear canals
• Simplifies RECD (Real-Ear-to-Coupler-Difference) measurements
• May be calibrated in a 2-cc coupler, occluded ear simulator, or 0.4-cc coupler
Sensitivity: 102.5 dB SPL in HA-2 coupler at 0.1 Vrms (10 Ohms)
Temperature: 15-35 C
Relative Humidity: 30-90% (non-condensing)Ambient Pressure: 98-104 kPa
Maximum Meets or exceeds 110 dB HL at standard audiometric frequencies
Output: between 0.5 and 4 kHz
Safe Operating Maximum continuous sine wave drive: 2.5 Vrms (10 Ohms),
Incorporates “touch-proof” electrical connection for safety
• Duplicates ER-3A smooth frequency response
• 30+ dB external noise exclusion – equivalent to a single-wall boothwhen used with deeply-sealed foam eartips
• 70+ dB isolation (interaural attenuation) between ears; reduces the need for masking
• Reduces test/retest variability compared to supra-aural earphones
• Eliminates test errors due to collapsed ear canals
• Simplifies RECD (Real-Ear-to-Coupler-Difference) measurements
• May be calibrated in a 2-cc coupler, occluded ear simulator, or 0.4-cc coupler
Sensitivity: 102.5 dB SPL in HA-2 coupler at 0.1 Vrms (10 Ohms)
Temperature: 15-35 C
Relative Humidity: 30-90% (non-condensing)Ambient Pressure: 98-104 kPa
Maximum Meets or exceeds 110 dB HL at standard audiometric frequencies
Output: between 0.5 and 4 kHz
Safe Operating Maximum continuous sine wave drive: 2.5 Vrms (10 Ohms),
Product Specification
| Specification | Value |
|---|---|
| Usage | Clinic |
| Microphone | Without Microphone |
| Bluetooth | No |
| Communication | Wired |
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