Microphones and Accelerometers
The G.R.A.S. 43AF Coupler Kit is a complete test jig for acoustically testing telephone handsets and earphones and complies with ANSI S 3.7 – 1995 – American National Standard for Testing Earphones.
Specifications:
| Theoretical dynamic range lower limit with G.R.A.S. preamplifier | dB(A) | 14 |
|---|---|---|
| Theoretical dynamic range upper limit with G.R.A.S. preamplifier @ +28 V / ±14 V power supply | dB | 134 |
| Theoretical dynamic range upper limit with G.R.A.S. preamplifier @ +120 V / ±60 V power supply | dB | 146 |
| Set sensitivity @ 250 Hz (±2 dB) | mV/Pa | 50 |
| Set sensitivity @ 250 Hz (±2 dB) | dB re 1V/Pa | -26 |
| Coupler volume | 6 ccm | |
| Temperature range, operation | °C / °F | -30 to 60 / -22 to 140 |
| Temperature coefficient @250 Hz | dB/°C / dB/°F | -0.01 / -0.006 |
| Humidity range non condensing | % RH | 0 to 80 |
| ANSI standard | S3.7 | |
| IEC standard | 60318-3 (former 60303) | |
| ITU-T recommondations | P.380 | |
| CE/RoHS compliant/WEEE registered | Yes/Yes/Yes |
Terms & Conditions
Download a copy of the AcSoft Equipment Rental Terms and Conditions here.
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