Chapter 3
1) Enter test mode by pressing TYMP followed by RETURN. Press the
SCREEN softkey. Test will automatically start when a seal is detected.
2) Default test parameters are displayed above softkeys on the LCD.
3) Attach the probe box to the velcro strip on the shoulder probe mount or to
the wristband probe mount.
4) Press the EAR softkey, then press LEFT or RIGHT ear.
5) Position the appropriate size SCREENING eartip on probe tip.
6) With the hand-held probe, obtain a seal at entrance to ear canal.
Probe lights indicate the following:
Solid Green
=
Test In Progress
Solid Amber
=
Occlusion
Blinking Amber
=
Leak
Blinking Green
=
OK To Begin A Test
7) Test will start automatically if ear canal seal is good.
Screening IPSI
Reflex test at 1 kHz will follow tymp.
8) A “Test Complete Remove Probe” message will appear on the display
when the test is complete.
9) View test results on the graphic display area along with summary data at
the right of the pressure and compliance meters.
1) Select test mode by pressing the REFLEX hardkey. Default test param-
eters are displayed above softkeys on the LCD.
NOTE
AUTO ZERO is used to baseline compliance.
2) Press the START hardkey to pressurize the ear to dynamic peak pressure
maintained from the last Tymp, or to 0 daPa if no previous Tymp data is
available
. Pressure control is active for fine-tuning pressure if Tymp is
sharply sloped.
3) Select intensity of stimulus by pressing the INTENSITY up and down
arrow hardkeys.
4) Present auto-timed stimulus by momentarily pressing the PRESENT bar.
5) Press the ERASE hardkey to erase sub-threshold presentations or unwanted
data (i.e
.
amplitudes of less than 0.02).
6) Press the CONTINUE softkey to allow reflex tracings to continue on next
line of reflex screen and onto the next page in memory.
7) Use the STIMULUS up and down arrow hardkeys to select alternative
test stimuli.
Auto Zero is used to baseline admittance prior to or between stimulus presen-
tations when performing acoustic Reflex Threshold, Reflex Decay, Acoustic
Reflex Latency andAcoustic Reflex Sensitization tests.
Grason-Stadler
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