AD104 Diagnostic Audiometer​, Diagnostic Auditory Tester, Diagnostic Hearing Tester

Introduction​

The AD104 diagnostic audiometer is a highly functional medical pure – tone audiometer. The diagnostic audiometer boasts high precision and a robust software testing function. By eliminating the complexity of traditional hand – drawn audiogram reports, the diagnostic audiometer offers a simple and intuitive operation. The instrument clearly presents the sound output intensity, frequency, and test information on its LCD screen. Moreover, the diagnostic audiometer enables communication with the test subject via a built – in microphone. The diagnostic audiometer is equipped with standard output interfaces for air conduction (AC), bone conduction (BC), and sound field (SF). The SF interface can be connected to a free – field loudspeaker or an insert earphone. Once connected to a workstation through the USB 2.0 data interface, it can store audiometric data and analyze it in accordance with the “Occupational Health Standards of the People’s Republic of China” to generate a diagnostic report for occupational noise – induced deafness. This diagnostic audiometer is suitable for hearing examinations and diagnoses in various institutions, including hospitals, industrial and mining enterprises, the military, driving schools, rehabilitation centers, and deaf – children training centers. It also adheres to ergonomic design principles.​

Features​

• Supports air conduction testing, bone conduction testing, and sound field testing
• Can be linked to a single – machine workstation, facilitating data storage and analysis​
• Capable of one – click analysis of hearing test data, directly obtaining diagnostic values and diagnostic classifications for noise – induced deafness
• Allows for the selection of test frequencies and customization of personalized reports. Through the workstation, users can set a custom report logo and name and generate reports in either A4 or B5 format​

Parameters​

• Name:AD104 Diagnostic Audiometer​/Diagnostic Auditory Tester/Diagnostic Hearing Tester
• Channels: Two independent output channels
• Test Frequencies: For air conduction, the range is 250 – 8000Hz; for bone conduction, it is 250 – 6000Hz, with an error of less than ±2%
• Test Intensity Range: From – 10 to 120dB​
• Test Signals: Pure tone, pulsed tone, warble tone, and narrow – band noise
• Microphone: A built – in microphone with adjustable intensity ranging from 0 to 20, which is convenient for communicating with the test subject​
• Display Screen: An LCD screen with a double – line numerical display
• Distortion: The distortion is less than 2.5% for air conduction and less than 5.5% for bone conduction​
• Accuracy: With continuous attenuation/step of 5dB, the error is 1dB​
• Masking: Contralateral masking is available for both air conduction and bone conduction
• Protection Function: It is designed to minimize the risk of damaging the test subject’s hearing.​
• Sound Field Testing: Optional
• Computer Interface: A USB 2.0 data transmission interface that can be connected to a workstation and used for printing test reports
• Online Diagnosis: It can automatically analyze and generate a diagnostic report for occupational noise – induced deafness in line with the “Occupational Health Standards of the People’s Republic of China”​
• Operating Environment: The temperature should be within the range of 10℃ – 40℃, the relative humidity between 30% – 90%, and the air pressure between 86 kPa – 106 kPa
• Warm – up Time: 5 – 10 minutes
• Mean Time Between Failures: At least 1000 hours
• Dimensions: The main unit measures 43cm×30cm×11cm (the packing box is 48.5cm×23.5cm×38cm)
• Weight: The main unit weighs approximately 2.44kg, and the gross weight is around 4.5kg
• Power Supply: 100V – 240V～ 50/60Hz 30VA
• Output: TDH 39 air – conduction earphones, B71 bone – conduction earphones, and free sound field​
• Standards: Complying with GB 9706.1 – 2007 and GB/T 14710 – 2009
• Audiometer – Cited Standards: Referring to GB/T 7341.1 – 2010 and JJG 388 – 2012