Directions for use
Understanding the LCD messages
25
Block
The test cannot continue since the measured admittance is less than 0.2 mmho.
Possible causes:
•
Probe tip is lodged against canal wall
•
Ear canal occluded
•
Collapsed ear canal
•
Extremely small ear
•
Probe tip is clogged with cerumen
Possible solutions:
•
Reposition the probe tip
•
Perform otoscopy to check for occlusion
•
Remove cerumen from probe tip
Leak
The test cannot proceed since desired pressures within the ear have not been achieved.
Possible causes:
•
Probe tip is not completely sealed in the ear canal
•
Excessive movement of patient or practitioner
•
Probe tip dislodged during a test
-400
-200
0
200
2
0.5
0
1.0
1
GR
A
GR
C
PRESSURE - daPa
Ya - mmho
+200 Vea - cc
Summary of Contents for MicroTymp 3 Handle
Page 1: ...MicroTymp 3 portable tympanometric instrument Directions for use...
Page 6: ...vi Contents Welch Allyn MicroTymp3 portable tympanometric instrument...
Page 16: ...16 Introduction Welch Allyn MicroTymp3 portable tympanometric instrument...
Page 22: ...22 Completing a test Welch Allyn MicroTymp3 portable tympanometric instrument...
Page 30: ...30 Understanding the LCD messages Welch Allyn MicroTymp3 portable tympanometric instrument...
Page 48: ...48 Printing 226 Hz results Welch Allyn MicroTymp3 portable tympanometric instrument...
Page 72: ...72 Specifications Welch Allyn MicroTymp3 portable tympanometric instrument...
