GRAS 90AB Basic Audiometer Calibration System

The GRAS 90AB Basic Audiometer Calibration system is configured for the stationary calibration lab and will also calibrate supra- and circum-aural audiometric earphones like TDH-39, HDA 200, HDA280 and HDA 300.

The configuration includes a GRAS Audiometer Calibration Analyzer, two complete sets of standardized ear simulators and a coupler platform.

Typical Applications and Use

Typical users are:

• Owners of Audiometers
  • Hospitals, ENT-department (ordinary and military)
  • Hearing clinics
  • Hearing aid fitters / dispensers
• Calibration service providers
  • Test houses / Certification labs
  • On-site calibration providers

Typical applications and uses:

• Calibration of supra- and circum-aural and insert earphones
• Free-field calibration and audiometric booth verification
• Modular artificial ear systems according to standards
• Dedicated audiometer calibration analyzer