GRAS 43AB 1/2'' 2cc Coupler Kit According to IEC 60318-5

Connection: 200 V/LEMO
Volume: 2 cc
Dyn range: 25 dB(A) to 164 dB
ANSI: S3.7 Type 2
IEC: 60318-5

Technology

The GRAS 43AB Artificial Ear is a complete test jig for acoustical measurements of hearing aids in accordance with IEC 60318-5 (60126) and ANSI S3.7 -1995 on insert type hearing aids in accordance with:

  • IEC 60318-5 (60126) reference coupler for the measurement of hearing aids using earphones coupled to the ear by means of ear inserts.
  • ANSI S3.7-1995 American National Standard for Coupler Calibration of Earphones.

The 43AB comprises:

The Test Jig has an adjustable spring-loaded arm to exert a variable force on the test object.

 

Specifications

Theoretical dynamic range lower limit with GRAS preamplifier
dB(A)
25
Theoretical dynamic range upper limit with GRAS preamplifier @ +120 V / ±60 V power supply
dB
164
Set sensitivity @ 250 Hz (±2 dB)
mV/Pa
12
Set sensitivity @ 250 Hz (±2 dB)
dB re 1V/Pa
-38.5
Coupler volume
mm³
0.4 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 Type 2 (HA-1, HA-2)
IEC standard
60318-5 (former 60126)
ITU-T recommondations
P.380
CE/RoHS compliant/WEEE registered
Yes/Yes/Yes
Connector type
3 m 7-pin LEMO
Weight
g / oz
1.55 / 54.675

GRAS Sound & Vibration reserves the right to change specifications and accessories without notice.

Ordering info

Included

GRAS RA0038 IEC 126 2 cc Coupler
  Tube adapters
GRAS 40AG ½" Pressure Microphone, Wide Frequency
GRAS 26AC ¼" Preamplifier
GRAS RA0052 Test Jig

Optional

GRAS 12AK Power Module
GRAS 42AA Pistonphone

Miscellaneous

GRAS RA0196 High-tension springs (set of two)

GRAS Sound & Vibration reserves the right to change specifications and accessories without notice.

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