After selecting one of the 5 test numbers, the current test parameters will be
saved in the non-volatile memory, replacing any previous test defined under
this number. The display will indicate the test has been saved as the selected
User Test and the instrument automatically reverts to Test Mode.
All settings including the HL levels, Frequency, Tone Switch/Interrupter
mode, etc., may be stored in a non-volatile memory in the audiometer (i.e.
they are stored even after the power supply is cut off).
Data Transfer
Access the Options Menu by pressing Softkey 3.
Softkey 3
Pressing Datrf. (data transfer) while in Test Mode saves all measuring
parameters in a local buffer. The buffer's contents may be transferred to a PC
via the data interface. Please refer to chapter 13 for further details about the
data interface.
Datrf.
1.5s On/1.5s Off
Selecting this option gives a
minimum
1.5 second stimulus or interrupt when
pressing the Tone Switch.
1.5 Sec Minimum
Tone Presentation
1 dB/5 dB Resolution
This option is available at any time in Test Mode.
1/5 dB Resolution
Access the Options Menu by pressing Softkey 3.
Softkey 3
Softkey 2 toggles between 5 dB and 1 dB attenuator resolution.
Softkey 2
HLL-On/HLL-Off
This option is only available when both attenuators are active.
Hearing Level Lock
Access the Options Menu by pressing Softkey 3.
Softkey 3
Pressing Softkey 4 in the Options Menu toggles the Hearing Level Lock.
Softkey 4
Turning the HL knob while the lock is on will change the Hearing Level in both
channels maintaining the required interval between stimulus and masking
levels. The level will continue to change in this way until one of the channels
reaches the upper or lower limit, whichever is relevant.
The Masking Level control may be used to change the interlock interval.
PTS-On/PTS-Off
Pressing Softkey 5 while in the Options Menu will toggle the audible patient
response signal in the monitor phone from on to off and vice versa.
Patient Signal
The level of the audible patient response signal may be adjusted by a
potentiometer located on the rear panel of the instrument and labelled Pt.
The display returns automatically to Test Mode after approximately 5
seconds. Press
MENU
to exit immediately.
MENU
MIDIMATE 622 OPERATION MANUAL
5. Operating in Test Mode
28
Pt
