43AF Coupler Kit
from GRAS

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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