Manual
You are prompted to set frequency, level and channel for each test point. The system provides audible feedback and waits for you to adjust the audiometer until it is within a user definable threshold before proceeding to the next test point.
ACS Audiometer Calibration System — Specifications
AUSSCO Inc. · 28034 W. Industrial Ave., Unit #1, Lake Barrington, IL 60010 USA
(800) 755-8272 · ACSsupport@AusscoCal.com · audiometercal.com
Features & specifications
ACS specifications
Every ACS specification on one page. Download the two-page spec sheet to print or share, or print this page as it is. For photos, software features and model details, see the product overview.
System configurations
Models
| Model | Microphones | Mastoid | Best for |
|---|---|---|---|
| ACS 100 SA3 | 1 (Type 1) | 1 | Clinical audiometer and tympanometry calibration — laboratory-grade accuracy for hearing clinics and medical centers. |
| ACS 200 SA3 | 2 | 1 | Dual-microphone measurements, enhanced headphone verification and flexible instrumentation support. |
| ACS 600 SA3 | 6 | 1 | High-throughput laboratory, production and service environments that need multiple simultaneous measurement points. |
| ACS 102 SA3 | Type 2 | — | Screening audiometer calibration with standard headphone measurement — a practical choice for screening programs. |
Automatic control is available on the 73 audiometer models that support it (see the list). Audiometers that aren’t listed can be calibrated with a User Defined test configuration.
Test modes
Manual, user controlled or fully automatic.
User controlled
For supported audiometers with a USB, RS-232 or Bluetooth link: the system controls and adjusts the audiometer for each test point. You decide which test section to perform.
Fully automatic
For supported audiometers with a USB, RS-232 or Bluetooth link: the system controls and adjusts the audiometer for a full battery of tests. You are only prompted to change transducers.
Specifications
Accuracy
- Frequency range
- 20 Hz to 22,000 Hz
- Frequency accuracy
- < ±1.0 Hz
- Frequency uncertainty
- 0.11 Hz95% confidence level, k=2
- Amplitude accuracy
- < ±0.2 dB
- Amplitude uncertainty
- 0.05 dB95% confidence level, k=2
- Distortion
- < 0.20 % @ 125 Hz
- Crosstalk
- < –80 dBr
- Linearity test limits
- +120 HL to –10 HL
- Sound level measurement
- Class 1Meets or exceeds ANSI S1.11-2004
Test coverage
Tests
| Audiometer acoustic tests | Output level, distortion, narrowband noise, white noise, speech noise, speech level |
|---|---|
| Audiometer electrical tests | Frequency, distortion, off level, rise time, fall time, overshoot, crosstalk, linearity, warble, pulse, SISI |
| Tympanometer tests | Probe output level and distortion, compliance, pressure, reflex output level, distortion, narrowband level, switching (rise/fall/overshoot/off), linearity |
| Auditory Brainstem Response (ABR) | Both probe and ABR headset: output level, distortion, intermodulation, linearity |
| Otoacoustic Emissions (OAE) | Probe output level, distortion, intermodulation, linearity |
| Other tests | Handswitch test, room acoustic levels (1/3 octave) |
Compatibility
Transducers, couplers & mastoids
| Transducers supported | Headphones: TDH-39/39P, TDH-49/49P, TDH-50/50P, DD45, Beyer DT48, Holmco 8103, Sennheiser HAD-280, Sennheiser HDA 200, Sennheiser HDA 300, Radioear DD450, Radioear DD65v2, Oscilla H210A, DD45 Mono Masking, Auditdata CA1, SA1 Insert phones: EAR 2, EAR-3A, EAR-5A, IP30, CIRR-22 Insert Masking Phone, Danavox Single Insert, EARtone ABR Earcups, IP30 Insert Masking, ER-3c, Auditdata IN1 High frequency phones: Sennheiser HDA-200, HDA-280, HDA-300, Koss HV/1A, Kross R80, Radioear DD65v2, Holmco 9501, Auditdata CA1, CA1-HF Bone oscillators: Radio Ear B-71, B-81, Oticon A20 (forehead or mastoid position), Auditdata BC1 Probes: IOW Probe, IOWA Probe, OWA Probe, SnapPROBE, manufacturer provided, custom probe Contralateral phones: Telephonics TDH-39/39P, TDH-49/49P, TDH-50/50P, Radioear DD45, DD65, Eartone 3A, 5A, Danavox Insert Phone, IP30, Button Phone, CIR Contra Phone, custom contra |
|---|---|
| Couplers supported | Headphones: NBS-9A/IEC-60303/IEC-60318-3, IEC-60318-1 Insert phones: IEC-126/HA-2/DB-0138, IEC-711, HA-1 High frequency phones: IEC 60318-2 Type 1 and IEC 60318-2 Type 2 |
| Artificial mastoids supported | ACS-M1, B&K-4930, Larson Davis AMC493 (AMC493 support includes temperature and humidity compensation). Flexible support for custom mastoids. |
| Free field options | Degrees of incidence (0/45/90) |
Compliance
Standards
| Audiometry | ANSI S3.6: 1969, 1989, 1996, 2004, 2010, 2018, 2025 IEC 60645 with ISO 389: 2002, 2012, 2017 Manufacturer factory specifications: Grason-Stadler, Interacoustics (2018 and 2025) |
|---|---|
| Tympanometry | ANSI S3.39 (1987, 2007), IEC 60645-5 |
| Room acoustics | ANSI S3.1 (2008), OSHA |
| Measurement | Meets or exceeds ANSI S1.11-2004 for Class 1 sound level meters |
Hardware & software
Inputs, interfaces & software
| PC interfaces | USB for the ACS data acquisition system. USB, RS-232 or Bluetooth for audiometer control. |
|---|---|
| System inputs | ACS 100: Microphone input, Audiometer Left, Audiometer Right, Transducer Left, Transducer Right, Bone Oscillator In, Bone Oscillator Out, Mastoid input, Handswitch/Continuity input ACS 200: Same as the ACS 100, with separate left and right microphone inputs ACS 600: Microphone Left and Right, Audiometer Left and Right, and Headphone Left and Right for each of the headphone, insert phone and high frequency phone stations, plus Mastoid input, Bone Oscillator In, Bone Oscillator Out and Handswitch/Continuity |
| Database | Microsoft Access format with Customer, Audiometer and Calibration Data tables. Flexible import and export, multipage calibration certificates, and calibration reports for customer and audiometer management. The database can sit on a network drive and be shared by several systems. |
| Signal analyzer | Tone, noise and click measurement modes with real-time spectrum and time series plots |
| Other tools | Continuity test |
Ready to speed up your calibrations?
Get pricing for your configuration, or see the ACS in action.