Page 10 OM024-6 Model 240 Operating Manual
3.5 Threshold Retention Function
This function records the thresholds for both ears at each frequency
tested (air conduction and bone conduction). Thresholds may be stored
manually or automatically.
The operator can then review the results at the end of the test and record
them on an audiogram card, print them with the optional printer (see
Section 3.8), save them to the internal memory (see Section 3.6) and/or
transfer the results to a computer (see Section 3.9).
3.5.1 Recording thresholds manually
Once a threshold has been determined press the “selected” ear key once
again. The threshold will be recorded and displayed as shown in the
illustration in 3.5.3. Note: this function will not operate if the “Store on
2 of 3” option has been enabled (see Section 3.5.2).
3.5.2 Recording thresholds automatically
If the “Store on 2 of 3” option has been enabled (see Section 3.4.2) then a
threshold will be recorded automatically by the audiometer if the patient
makes a response to two out of three manual tone presentations at the
same level and frequency. Thresholds determined using the “Store on 2 of
3” option are displayed within square brackets.
3.5.3 Reviewing retained thresholds
To review the retained thresholds, select the required frequency using the
FREQUENCY keys. The recorded values for the left and right ears
are shown on the lower line of the display as illustrated below.
SIGNAL dBHL FREQUENCY Hz MASKING dBHL
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