AR-I-MREMSW-5 Avant REM Speech Training Manual
Effective Date: 4/07/2014
11
Calibrating the Probe Tube
For reasons of infection control and reliability of results, MedRx recommends that a new probe tube be
used with each patient.
To ensure accurate measurements, it is necessary to calibrate the probe
tube each time it is replaced.
1. Place a new probe tube on the probe
microphone port as shown below.
2. Place the probe tube between the calibration nibs as
shown. Be sure that the opening of the probe tube is
centered on the grill of the reference microphone.
In the Avant REM Speech software, click
Function
Calibrate
Probe Tube
Position probe microphone between 19 and 39
inches from the loudspeaker and click Start.
The signal must be at least 70 dB to complete
a valid calibration. If the screen prompt
indicates the signal is too low, increase the
volume on the loudspeaker or moves the probe
microphone assembly closer and re-start the
calibration.
Repeat for the other probe. Valid calibrations
have the same approximate shape as the gray
target curve, but may contain a few spikes in
the very low or very high frequency area of the
response curve. This is acceptable.
If the measured calibration curve differs greatly
in shape or amplitude from the gray target
curve, replace the probe tube and re-calibrate.
If this does not correct the problem, contact
MedRx technical support at (888) 392-1234.
Summary of Contents for Avant REM Speech
Page 1: ...TRAINING MANUAL...
