Display of economical audiometer:
There are two output LED on both side of the display,when the selected
Signal transfer to corresponding ear, the screen would show.
During the audio detection,the up line of the display would
show the strength that provide to left or right ear by dBHL ration
When testing,the test ear would show"L" or "R" on the display.
Test frequency wouldshow in the middle of the screen.
If cover the opposite ear,it will show in the opposite side.
Technical Index of economical audiometer:
Channel: Two independent channel
Frequency: Air conduction; Bone conduction and free sound field 11 standard
frequency,125-8000Hz,bone conduction 250-6000Hz,error less than 1%.
Masking: Pure tone test ;ipsilateral white noise
Sound pressure range:
Output interface:TDH39 or plug-in Air conduction earphone,B71 Bone conduction earphone,free sound field
Standard function: Pure tone test.Provide continuant,pulse voice and warble tone
Normal: Press INT to start sound stimulate
Inversion: Press INT to stop sound stimulate.5dB step and 5dB step continuous attenuation,1DBerror. Have microphone
Distortion: Air conduction: <2.5%; Bone conduction: <5%
Operation Environment: Temperature + 10 °C-+ 35 °C, air temperature 30%-90%
Air pressure:860hPa -- 1060hPa
Preheating time: Less than 10 minutes
Size : 45cm*30cm
Weight : 1775g
Power source : 230VAC, 50Hz
Maximum power : 60VA
Executive standard : Audiometer producing standard: EN60645-1, EN60645-2,EN60645-4 and ANSI S3.6-1996
Safety standard : EN 60601-1,level 1 class B EN 60601-1-2;EN 60601-1-4
Standard accessory: TDH39 Air conduction earphone,B71 Bone conduction earphone(reprovision),responder, power line.
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