AMBCO

650A Audiometer Knobs & Switches, Basic Unit, Easy To Use, Least Expensive.

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MEETS OR EXCEEDS A.N.S.I. S3.6-1989, O.S.H.A. REQUIREMENTS
TEST FREQUENCIES: Accuracy better than 1% AUTOMATIC: 500, 1000, 2000, 3000, 4000, 6000, 8000 (with validity check at 1000 Hz) SEMIAUTOMATIC & MANUAL MODES: 250. 500, 750, 1000, 1500, 2000, 3000, 4000, 6000, 8000 (Hz)
TOTAL HARMONIC DISTORTION: Less than 3%, typical 1%
HEARING LEVEL RANGE: 0 to 95dB in 5dB increments except at 125Hz to 75dB and 250 and 8000 Hz to 85dB. Accuracy +/- 1dB
DATA OUTPUT: RS-232 9600 baud, 8 bits, no parity, DTR for printer/computer ID
STORAGE CAPACITY: Up to 260 Audiograms
PRINT TIME: Typically less than 20 seconds (printer dependent)
EARPHONES: TDH-39, 10 Ohm
DISPLAY: .375 high, 2 line by 16 characters, backlight LCD
POWER SUPPLY: 107-127 VAC 60 Hz, 10 Watts. UL Approved (optional 220 VAC 50/60 Hz available)
CASE: Impact resistant A.B.S. plastic, W 10" x L 8" x H 4.2". Total audiometer weight 4.0 Ibs.
WARRANTY: 5 years on base system

Meets or exceeds ANSI S3.6 1989, (ASA 81-1989) ISO 389-1985, C.H.D.P, O.S.H.A, E.P.S.D.T. F.A.A., Police, Divers, requirements.
Frequency Range: 250, 500, 1000, 2000, 3000, 4000, 6000, 8000 Hz Accuracy better than 3%, (steady and pulsed tone)
Hearing Threshold Range: 0 to 90dB in 5dB steps Accuracy better than 2 dB
Harmonic Distortion - less than 3%
Power: 110-230 VAC, 50-60 HZ UL, C.S.A. approved power supply. Long hour operation on one 9 volt battery (650AB).
Total Weight less than 4.5 Ibs (complete with headset, TDH 39 earphones, patient response, audiogram pad and carrying bag.)

Unique instrument advances pure tone air conduction threshold and screening tests for hearing.
The Model 1000 + OTO-SCREEN is a standard threshold & screening audiometer with the option of sequential testing.
Sequential screening eliminating fatigue factor.
OTO-SCREEN is microprocessor controlled resulting in accurate, consistent hearing tests.
Hands-off screening gives the operator complete control of testing procedure.

Meets or exceeds ANSI 3:6 - 1996. ANSI 3.21 1978 (R 1997) Methods for pure-tone threshold audiometry.
O.S.H.A. C.H.D.P. and other requirements
Standard Mode - dB (Threshold Level) 0 to 90dB in 5dB steps. Frequency Range: 250, 500, 1000, 2000, 3000, 4000, 6000, 8000 Hz.
OTO-SCREEN Mode - dB (Threshold Level) 10 to 35dB in 5dB steps Frequencies presented sequentially: 1000, 2000, 3000, 4000 Hz.
Easy to read displays, quiet soft membrane switches to facilitate testing.
Portable package with padded bag, weighs 5 lbs.

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