The memory buttons are labeled for the right ear and
L
for the left
ear. When test results are stored in memory, the RIGHT STORE or LEFT
STORE message (see Figure 7A) appears momentarily on the LCD.
Then the tympanogram which has been stored reappears along with the
right
R
or left
L
symbol (see Figure 7B) to indicate the contents of
that memory.
Figure 7 Figure 7A Figure 7B
Displaying Memory Contents
Information stored in memory may be recalled at any time by depressing
the appropriate memory button.
Erasing Memory Contents
There are two ways to erase memory contents:
• When a test is stored, the previous test is automatically erased.
• Depressing either the right
R
or left
L
memory button for more than
three seconds erases that memory.
Understanding the Liquid Crystal Display
(LCD) and Its Messages
The following messages may be displayed on the LCD during MicroTymp2
Handle operation:
Gradient (Width) Measurements
When a tympanometric tracing is complete, the MicroTymp2 measures
the gradient or width of the tympanogram. If the gradient is abnormal, an
asterisk will appear on the LCD under
GR
A
for the adult’s ear (greater than 10
years of age), or
GR
C
for the child’s ear (10 years of age or younger). For more
information, see Appendix A, “Guidelines for Tympanometry”, and Appendix
B, “Guidelines for Screening”.
8
-400 -200 0 200
2
0.5
0
1.0
1
GR
A
GR
C
PRESSURE - daPa
Ya - mmho
+200 Vea - cc
RLTEST
-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
L
R