Audioscan Verifit 2 - Manual (Page 138)

Verifit ® User's Guide Version 4.2 © June 2015
This message may be displayed during the test box calibration procedure. It indicates that the test box
microphones could not be accurately calibrated due to significant ambient noise or possibly defective
microphones.
• Check that the test chamber lid is closed and sealed.
• Turn off nearby sources of noise and vibration.
• Ensure that the test chamber is not bumped or moved during calibration.
• Follow the suggestions in No test box reference mic. detected and Invalid test box calibration if problem
persists.
No on-ear ref. mic. detected
No (right or left) on-ear reference mic. detected.
This message may be displayed when starting an On-ear test. It indicates that the Verifit is not measuring any
sound at the on-ear probe reference microphone.
• Check that a probe microphone assembly is securely plugged into the PROBE connector on the lower side
of the probe dock, and that it is the correct socket for the ear you are trying to calibrate. Also, check that
the cable has not become damaged.
• Try switching right and left probe microphone assemblies. If the fault follows the microphone to the other
ear, it may be a faulty microphone.
Invalid on-ear calibration
Invalid on-ear microphone calibration!
This message may be displayed during the on-ear calibration procedure. It indicates that the calibration curve is
significantly different from what is expected. It may be accompanied by an on-ear reference microphone error.
• Check that a probe microphone assembly is securely plugged into the PROBE connector on the lower side
of the probe dock, and that it is the correct socket for the ear you are trying to calibrate. Also, check that
the cable has not become damaged.
• Try using a new probe tube. Ensure it is correctly attached and positioned.
• Try switching right and left probe microphone assemblies. If the fault follows the microphone to the other
ear, it may be a faulty microphone.
• Ensure not to attempt to use cleaned or sterilized probe tubes, as this causes the probe mic inlet tube to
become clogged with cerumen, requiring microphone replacement and voiding microphone warranty.
Unable to calibrate on-ear microphone
Unable to calibrate on-ear microphone!
This message may be displayed during the on-ear calibration procedure. It indicates that the on-ear microphones
could not be accurately calibrated due to significant ambient noise or possibly defective microphones.
• Turn off nearby sources of noise.
• Ensure the probe module is held steady during the calibration procedure.
• Ensure nothing makes contact with the probe tube during the calibration procedure.
• Follow the suggestions in No on-ear ref. mic. detected and Invalid on-ear calibration if problem persists.
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