The Medicaid BERA-3000 (Beragraph) is a diagnostic Brainstem Evoked Response Audiometry (BERA) system designed by Medicaid Systems for recording auditory evoked potentials and assessing objective hearing thresholds.
The system combines high-performance amplifiers, 14-bit averaging, programmable auditory stimulation, automatic masking control, and advanced waveform analysis. In addition to BERA, the system supports MLR, LLR, and P300 testing, making it suitable for a range of auditory and evoked-potential assessment applications.
Product Overview
The Medicaid BERA-3000 is designed to acquire and analyze small evoked-potential signals generated in response to auditory stimulation.
Its averaging and waveform-analysis capabilities are intended to support objective assessment of auditory thresholds. The system can record multiple waveforms simultaneously and provides tools for comparing responses between the left and right ears, superimposing curves, smoothing stored data, and reformatting test parameters.
✅ Key Features
- Diagnostic BERA / Beragraph system
- High-performance evoked-potential amplifiers
- 14-bit averaging
- Objective auditory threshold assessment
- Threshold accuracy specified as greater than 5 dB
- Supports differentiation of end-cochlear and retrocochlear deafness
- Burst, log-in, and click auditory stimulation modes
- Condensation, rarefaction and alternating stimulation
- Stimulus intensity from 0–120 dB
- Automatic masking control
- Up to 16 waveform recordings
- Automatic waveform marking
- Left/right ear split-screen comparison
- Curve superimposition
- Smoothing filters for stored data
- Parameter reformatting during or after testing
- Supports BERA, MLR, LLR and P300 tests
- Windows-based operation software
High-Performance Amplifiers
The BERA-3000 incorporates high-performance amplifiers designed to acquire high-quality auditory evoked-potential signals.
Accurate signal acquisition is important in evoked-potential testing because the responses being measured can be relatively small compared with unwanted electrical and physiological signals.
14-Bit Averaging & Threshold Assessment
The system uses 14-bit averaging for objective auditory threshold measurement.
The supplied specifications state threshold accuracy of greater than 5 dB.
This averaging capability supports the identification and analysis of auditory evoked responses during testing.
Auditory Stimulation
The BERA-3000 provides multiple auditory stimulation options:
The stimulation can be configured for:
- Condensation
- Rarefaction
- Alternating
The specified stimulus intensity range is:
0–120 dB
This provides flexibility for different auditory evoked-potential testing protocols.
Automatic Masking Control
The system includes automatic masking control.
According to the supplied information, masking intensity is automatically controlled relative to the stimulating intensity while maintaining a constant programmed difference.
This helps simplify masking-related adjustments during applicable auditory testing procedures.
Supported Evoked-Potential Tests
The BERA-3000 supports several testing modalities:
BERA
Brainstem Evoked Response Audiometry for recording auditory evoked responses and objective hearing assessment.
MLR
Middle Latency Response testing for evaluation of middle-latency auditory responses.
LLR
Long Latency Response testing for later auditory evoked responses.
P300
P300 cognitive evoked-potential testing for appropriate neurophysiological assessment protocols.
Waveform Recording
The system can record up to 16 waveforms and includes automatic waveform-marking capabilities.
This facilitates the organization and review of multiple responses acquired during an examination.
Left & Right Ear Comparison
A split-screen display allows responses from the left and right ears to be compared.
The system also provides curve superimposition, allowing waveforms to be visually compared during analysis.
Waveform Processing & Analysis
The software provides several analysis tools, including:
- Stored-data smoothing filters
- Curve superimposition
- Split-screen ear comparison
- Parameter reformatting
- Waveform auto-marking
- Review during and after testing
These functions provide flexibility when examining stored evoked-potential recordings.
Windows-Based Software
The BERA-3000 is designed for Windows-based operation software.
The supplied compatibility information specifically identifies:
- Windows 98
- Windows ME
- Windows XP
The software is described as user-friendly and provides the interface for acquisition, analysis, review and reporting of evoked-potential tests.
Clinical Applications
The Medicaid BERA-3000 may be used in appropriate:
- Audiology departments
- ENT clinics
- Hospitals
- Hearing assessment centers
- Neurodiagnostic laboratories
- Audiology teaching institutions
- Research laboratories
The system is designed for auditory evoked-potential testing and related evoked-response examinations.
Technical Specifications
| Specification |
Details |
| Brand |
Medicaid Systems |
| Model |
BERA-3000 |
| Product Name |
Beragraph |
| Device Type |
Brainstem Evoked Response Audiometry System |
| Amplifier |
High-performance evoked-potential amplifier |
| Averaging |
14-bit |
| Threshold Accuracy |
>5 dB, as specified |
| Stimulus Types |
Burst, Log-in, Click |
| Polarity |
Condensation, Rarefaction, Alternating |
| Stimulus Intensity |
0–120 dB |
| Masking |
Automatic masking intensity control |
| Waveform Recording |
Up to 16 waveforms |
| Waveform Marking |
Automatic marking |
| Ear Comparison |
Left/right split-screen |
| Curve Analysis |
Superimposition |
| Data Processing |
Smoothing filters |
| Parameter Control |
Reformatting during/after testing |
| Supported Tests |
BERA, MLR, LLR, P300 |
| Software |
Windows-based operation software |
| Specified Windows Platforms |
Windows 98 / ME / XP |
Product Disclaimer
Specifications and included accessories may vary by production batch, market, or manufacturer revision. Please verify the exact configuration with the seller before purchase. This product information is intended for general product guidance and does not replace professional medical advice, diagnosis, or treatment.
