Made by AUSSCO, Lake Barrington, IL · ACS systems sold internationally

Supported instruments · MAICO

Calibrating MAICO audiometers and tympanometers

The ACS has built-in setups for 20 MAICO instruments, and 12 of them run under full automatic control. Select the model, start the calibration, and the ACS sets each test point, measures it and adjusts the instrument to ANSI S3.6 and IEC 60645.

20MAICO models with built-in setups
12 of 20Under full automatic serial / USB control
Under 10 minExhaustive calibration on most audiometers
ANSI & IECS3.6, IEC 60645, ISO 389 and S3.39 built in

Supported MAICO models

Every MAICO model the ACS calibrates

Automatic control means the ACS talks to the instrument through its serial or USB port: it sets frequency, level and channel itself and adjusts the instrument to the standard, and you only step in to change transducers. Models in manual mode are calibrated with the ACS prompting the technician for each setting and measuring the result.

ModelTypeControlWhat the ACS checks
MA-1000AudiometerAutomaticAir, bone and high frequency output levels, frequency, distortion, linearity, masking noise, tone switching, crosstalk, speech
MA-19/20AudiometerManualAir, bone and high frequency output levels, frequency, distortion, linearity, masking noise, tone switching, crosstalk, speech
MA-25Screening audiometerManualAir conduction output levels, frequency, distortion, linearity, tone switching
MA-25 (Model 1135)Screening audiometerAutomaticAir conduction output levels, frequency, distortion, linearity, tone switching
MA-27Screening audiometerManualAir conduction output levels, frequency, distortion, linearity, tone switching
MA-28AudiometerAutomaticAir, bone and high frequency output levels, frequency, distortion, linearity, masking noise, tone switching, crosstalk, speech
MA-33Diagnostic audiometerManualAir, bone and high frequency output levels, frequency, distortion, linearity, masking noise, tone switching, crosstalk, speech
MA-39Screening audiometerManualAir conduction output levels, frequency, distortion, linearity, tone switching
MA-40Screening audiometerManualAir conduction output levels, frequency, distortion, linearity, tone switching
MA-41Diagnostic audiometerAutomaticAir, bone and high frequency output levels, frequency, distortion, linearity, masking noise, tone switching, crosstalk, speech
MA-42Diagnostic audiometerAutomaticAir, bone and high frequency output levels, frequency, distortion, linearity, masking noise, tone switching, crosstalk, speech
MI-44Tympanometer / middle ear analyzerAutomaticProbe tone level, compliance, probe pressure, reflex output level, distortion, linearity
MA-51Diagnostic audiometerAutomaticAir, bone and high frequency output levels, frequency, distortion, linearity, masking noise, tone switching, crosstalk, speech
MA-52Clinical audiometerAutomaticAir, bone and high frequency output levels, frequency, distortion, linearity, masking noise, tone switching, crosstalk, speech
MA-790Clinical audiometerManualAir, bone and high frequency output levels, frequency, distortion, linearity, masking noise, tone switching, crosstalk, speech
MA-800AudiometerManualAir, bone and high frequency output levels, frequency, distortion, linearity, masking noise, tone switching, crosstalk, speech
easyTympTympanometer / middle ear analyzerAutomaticProbe tone level, compliance, probe pressure, reflex output level, distortion, linearity
easyScreenABR / OAE instrumentAutomaticProbe and headset output level, distortion, intermodulation, linearity
easyTonePC-based audiometerAutomaticAir, bone and high frequency output levels, frequency, distortion, linearity, masking noise, tone switching, crosstalk, speech
Pilot TestAudiometerAutomaticAir, bone and high frequency output levels, frequency, distortion, linearity, masking noise, tone switching, crosstalk, speech

MAICO model not listed? It can still be calibrated: set it up as a User Defined instrument with its own test configuration. See MAICO on the full instrument list.

How it works

A MAICO calibration, start to finish

  1. Select the MAICO model

    The ACS loads the right calibration routine and sets the headphone type and impedance for that model.

  2. Connect and start

    Connect the instrument’s outputs to the ACS interface, and on automatic-control models its serial or USB port. The ACS steps through every test point, recording the values it found before any adjustment.

  3. Print the certificate

    Every result, the MAICO and transducer serial numbers and the standard used, with your company logo. What a certificate should include.

ACS serial setup screen for automatic audiometer control

Questions

MAICO calibration questions

Does the ACS adjust a MA-42 by itself?

Yes. Under automatic control the ACS sets each test point on the MA-42 and adjusts its output to the selected standard. The technician is only prompted to change transducers.

Can the ACS calibrate MAICO tympanometers too?

Yes. The MI-44 and easyTymp are supported, with probe tone level, compliance, pressure and reflex tests to ANSI S3.39.

How often should a MAICO audiometer be calibrated?

Under OSHA hearing conservation rules, an acoustic calibration at least yearly and an exhaustive calibration at least every two years. Calibration schedules.

Other calibration guides: GSI (14 models) · Interacoustics (23 models) · all 22 manufacturers.

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