SUGGESTED SEQUENCE OF OPERATION AND TEST PROCEDURE
16 MODEL 260 INSTRUCTION FOR USE
4.5. PRE-TEST
(1) Switch the audiometer on
(2) Perform a listening check
(3) Decide whether to use the Threshold Retention Function (see Section 3.5) or an audiogram card to record the
thresholds
(4) Prepare the test environment & patient (see Sections 4.1 to 4.4)
(5) Select the better hearing ear (according to the patient) by pressing either the LEFT or RIGHT key
4.6. TEST
(6) Present the first test tone at 30dB at 1kHz
(7) If the patient responds, reduce the signal level in 10dB steps until they no longer respond; then increase the signal
level in 5dB steps until the patient responds
(8) If the patient fails to hear the first tone, increase the signal level in 5dB steps until they do respond and then
continue with step 10
(9) Repeat the test by reducing the signal level in 10dB steps until the patient no longer responds; then increase the
signal level in 5dB steps until they do respond and note this level
(10) If Store on 2 of 3 is selected, go to step 13
(11) Repeat step 10 until the patient responds three out of a maximum of five times at the same signal level, indicating
the patient’s hearing threshold level for that frequency; mark the threshold on an audiogram card or press the
“selected” ear key once to activate the Threshold Retention Function which then displays the threshold on screen
(12) If Store on 2 of 3 is selected, repeat step 10 until the patient has responded 2 out of a maximum of 3 times at the
same signal level; this will automatically display the threshold on the screen
(13) Proceed to the next test frequency and repeat steps
(14) Repeat steps 6 to 13 for the other ear
4.7. POST-TEST
(15) Use the Threshold Retention Function to review the results (See 3.5)
(16) If required do one or more of the following:
• Record the results on an audiogram card, or
• Save the results to the internal memory (Section 3.6), or
• Print the results (Section 3.8), or
• Transfer the results to a computer (Section 3.9)
To clear the Threshold Retention memory, use the Clear test menu option described in Section 3.4.2.
To Next Page
Loading...
