OTO-CHEK
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OTO-CHEK SPECIFICATIONS TEST FREQUENCIES: STIMULUS FORMAT: POWER SOURCE: WEIGHT: RESPONSE OUTPUT: Full range 125 to 8K Hz. Continuous or pulsed. AC Adapter (output 14V DC 220mA) or 9 Volt battery. Less than 2 pounds. Normally open relay contacts. OTO-CHEK can be used with any manual audiometer or automatics with NORMALLY OPEN RELAY CONTACTS. READY TO USE Simply place the earphones over right and left couplers of OTO-CHEK. For MANUAL TESTING turn OTO-CHEK on. Present the tones as in manual testing and record the frequency and HL when there is positive RESPONSE by OTO-CHEK, red light on. Retain these baseline results and use them to compare future tests. ESTABLISH NEW BASELINE every time the audiometer is re-calibrated. For AUTOMATIC TESTING place the earphones on OTO-CHEK, plug the response switch from OTO-CHEK to response jack on audiometer. Turn OTO-CHEK on. Turn automatic audiometer on and initiate automatic test. If printer is connected to the audiometer, results will be printed. Retain these baseline results and use them to compare future tests. ESTABLISH NEW BASELINE every time the audiometer is re-calibrated. SIMULATED CALIBRATION CHECK RESULTS The periodic audiometer calibration check must be with (plus or minus)(±)5dB of baseline (e.g. if baseline at 1000Hz is 60dB, any results of 55 or 65dB are acceptable). 15052 Redhill Ave., Suite D Tustin, CA 92780 800-345-1079 714-259-7930 FAX 714-259-1688