Interacoustics Callisto AC440 Instructions For Use Manual page 50

D-0101246-M – 2020/05
Callisto™ - Instructions for Use - US
Show Cursor on Graph locks the cursor to the curve, displaying the
frequency and intensity at any given point along the measure curve.
Use Opposite Reference Microphone lets the fitter use a reference
microphone is on the opposite to the ear in which the probe measurement
microphone is. To use this feature, position the probe tube in the patient's
ear, with the hearing aid in. Position the other reference microphone on the
other patient's ear. By pressing on this button, the reference mic on the
opposite side is the one be used during the measurement. This type of
scenario is often used in CROS and BiCROS fittings.
Single Graph lets the fitter view the binaural mesurement in one graph,
overlaying the curves from the left and the right ear on top of one another.
Enable/disable delta values lets the fitter to see the calculated difference
between the measurement curve and the target.
Stimulus Selection: With this dropdown list the test stimulus can be
chosen.
Monitor: If you wish to listen to the amplified stimulus through a monitor.
1. Connect a monitor headset to the monitor output on the hardware.
It is recommended to use only a monitor headset which is approved
by Interacoustics.
2. Tick the Monitor check box.
3. Use the slider to turn the sound level up and down.
Note that the sound from the monitor may be very soft (compared to the
audiometry monitoring). It is louder for audiometry because the audiometric
equipment is producing the signal that is monitored. In REM440 the hearing
instrument produces the monitored signal meaning that it cannot be
controlled by the equipment.
Current Protocol is listed in the lower left hand corner.
Upon performing a test the system automatically jumps to the next one in
the test flow. A checkmark indicates that a curve has been measured.
Test protocols can be created and adjusted in the REM440 setup.
The colour on each test button (in this case blue) indicates the colour
selected for each curve.
START/STOP button initiates and ends the current test. Note that after
pressing START the text on the button will change to STOP.
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