Diagnostic Audiometer

Technical specifications:\r\nChannels:\r\n2 separate and identical channels (2 oscillators)\r\nOutputs:\r\nPhones, bone, insert, free-field loudspeaker via external or internal amplifier\r\nTone Stimuli:\r\nPure, pulsed or warble tones\r\nFrequency Range:\r\nAir, FF: 125 to 20,000 Hz\r\nBone: 250 to 8,000 Hz\r\nFrequency Resolution:\r\nStandard frequencies, 6/12/24/48 points per octave, or 1 Hz\r\nMasking Signals:\r\nWhite Noise, Speech Noise, Narrow Band Noise or External (CD/Tape)\r\nAttenuator:\r\n1 dB step resolution\r\nHearing Level Range:\r\nMaximum output limited by transducer capability\r\nAir: -10 to 120 - 125 dB HL at 500 - 6,000 Hz\r\nBone: -10 to 70 - 80 dB HL at 500 - 4,000 Hz\r\nSpeech Input:\r\nMicrophone or CD/Tape 1-2\r\nSpecial Tests:\r\nS.I.S.I., ABLB, Stenger, Rainville, DLI, Auto Threshold, Tone decay,\r\nMCL/UCL, DLF, MLB, Békésy, HFA; 10 user-programmable tests\r\nData Communication:\r\nRS232C Serial Data Interface\r\nPrinter:\r\nOptional built-in thermal printer or external\r\nDisplay:\r\n640 x 200 monochrome LCD display, viewing area 224 x 98 mm\r\nPower Supply:\r\nAC 50 - 60 Hz, 100 - 127 V or 200 - 240 V