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List Details
Our Audiometer Equipment Calibration Complies with - ANSI S 3.6 1989, ISO 389 1991, IEC 645, Standards for electromedical equipment.
Technical Specification :
Input
Tone, speech-built in & Ext. Mike
Output
Left, Right, Bone
Freq.
Air (-20 db to 120 db) 250 Hz to 8 Khz - 5 db Step. Bone (-20 db to 80db) 250 Hz to 6 Khz- 5 db Step.
Masking
Wide Band-10db Step., 100 db Max.
Tests
Pure Tone, Speech, Tone Decay (counter)
Tone
Continuous & Pulse
Screen
L.C.D.(with contrast control)
Head Phone
DR 59, TDH 39/49/Optional
Bone
B-71 Radioear
Indication
V.U. Meter for Speech
Voltage
AC 230 / 50 Hz, DC 12V (IA) Operation
Weight
3.5Kg. (With Shoulder Bag)
Dimension
25 x 21 x 7.5 cm
The audiometer has been designed to offer the basic needs, such as pure-tone, speech, noise-narrow band & wide band +10 & +20 dB facility with 5 dB steps. Besides this it have been provided with additional tests such as Auto, Stenger, ABLB for much more analytical approach to audiological measurements. Provisions of toggle L.R. provides facility for switching between left & right for quick measurement confirmations.
Salient Features :
Children who are hard of hearing from infancy or have gained hearing at a developed age, need to help to learn to speak. They need to know words, their pronunciation, meaning and usage. With patience and understanding, parents and teachers can achieve heart-warming results.
Technical Specification:
Amplifier
IC-based output stage coupled with 2 transistor low-noise pre-amp-stage.
Freq. Range
150 Hertz to 8 Khz.
Gain Control
Continuously variable dB Attenuator Max. Volume 130 dB SPL.
Tone Control
2 Tone per channel:Hi-Low (Fixed)
Indicators
Separate indicators(VU Meters)
Switches
For 'Mike' and phono(induction loop system). For battery check.
Microphones
Electret-built in and external
Headphones
Dynamic, low impedance, Adjustable head-band and circumaural ear cushion.
Supply Voltage
6V; 1.5x4 R20(large size) cells if on battery. 230V; 50Hz. A.C. mains with built in power supply.
Current Drain
20 mA, Quiescent.
Max. Power
700 mW, per channel
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