Welch Allyn MicroTymp 3 portable tympanometric instrument - User Manual - Manual (Page 24)

24 Understanding the LCD messages Welch Allyn MicroTymp3 portable tympanometric instrument
Open
The test has not begun since a valid ear cavity has not been detected.
Possible causes:
• Instrument is not in an ear
• Probe tip is not completely sealed in an ear
• Perforated tympanic membrane
• Ear with patent tympanostomy tubes
• Extremely large canal (> 2.5 cc)
Possible solutions:
• Reposition the probe tip
• Perform otoscopy to check for perforated membrane or patent tympanostomy tubes
Test
The TEST message indicates that the test has started. Test data will begin to appear
immediately.
-400 -200 0 200
2
0.5
0
1.0
1
GR
A
GR
C
PRESSURE - daPa
Ya - mmho
+200 Vea - cc
-400 -200 0 200
2
0.5
0
1.0
1
GR
A
GR
C
PRESSURE - daPa
Ya - mmho
+200 Vea - cc
-400 -200 0 200
2
0.5
0
1.0
1
GR
A
GR
C
PRESSURE - daPa
Ya - mmho
+200 Vea - cc
-400 -200 0 200
2
0.5
0
1.0
1
GR
A
GR
C
PRESSURE - daPa
Ya - mmho
+200 Vea - cc