ERROR HANDLING & TROUBLESHOOTING
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OM033-4 - CA850 Series 5 Operating Manual
6
ERROR HANDLING & TROUBLESHOOTING
6.1
NO RESPONSE FROM PATIENT
If the patient does not operate the response switch and the maximum output level is reached, the test at that
particular frequency will be repeated according to the
‘Retries’ setting (see Section 11.2.4).
If a respo
nse is still not made then the message “No response!” is displayed at the top of the screen. The test
will then be paused with options to retry the same frequency, skip to the next frequency or cancel the test. If
the test is cancelled then any thresholds that have been established will be retained.
6.2
CONTINUAL RESPONSE FROM PATIENT
If the patient holds the response switch on continuously and the minimum output level is reached, the test at
that particular frequency will be repeated according to the ‘Retries’ setting (see Section 11.2.4).
If the response switch is still held
then the message “Response not released!” is displayed at the top of the
screen. The test will then be paused with options to retry the same frequency, skip to the next frequency or
cancel the test. If the test is cancelled then any thresholds that have been established will be retained.
6.3
INCONSISTENT RESPONSE FROM PATIENT
If the patient does not respond in a consistent manner and a hearing threshold cannot be established, the test
at
that particular frequency will be repeated according to the ‘Retries’ setting (see Section 11.2.4).
If the response is still inconsistent then the message “Test failed!” (Bekesy test) or “Frequency failed!”
(Computer test) is displayed at the top of the screen. The test will then be paused with options to retry the
same frequency, skip to the next frequency or cancel the test.
If the test is cancelled then any thresholds that have been established will be retained.
If the next frequency is chosen the test
will continue, but at the end of the test the message “Test completed
with errors” is displayed at the top of the screen.
6.4
ERRORS IN TEST SEQUENCE
If one or more thresholds cannot be recorded for other reasons the
message “Test completed with errors” is
displayed at the top of the screen.
The operator may then re-test the patient at specific frequencies that were problematic using the Mixed test
mode if appropriate (Section 5.4).
