GSI
Allegro Tympanometer
User Manual
D-0120695 Rev D 2022-06 Page 14
levels. Press the ► key to confirm the selection or the ◄ key to cancel. (Note that 100dBHL at
4000Hz is not available).
REFLEX POLARITY
Use the ▲ and ▼ keys to choose whether the reflex traces are displayed as ascending (UP) or
descending (DOWN). Press the ► key to confirm the selection or the ◄ key to cancel.
REFLEX FILTER
Use the keys to choose either 2Hz or 1.5Hz. The default of 2Hz is suitable for most circumstances.
However, if a smoother reflex plot is required for better interpretation 1.5Hz may be chosen.
Press the ► key to confirm the selection or the ◄ key to cancel.
SET TIME/DATE
Use the keys to enter the values for the date and time. Use the ▲ and ▼ keys to change the
values. Press the ► key to confirm and save the selection or the ◄ key to cancel.
POWER OFF DELAY
The GSI Allegro will switch off automatically if no key is pressed for a specified duration. Use the
▲ and ▼ keys to change this duration between 90 and 180 seconds and press the ► key to
confirm and save the selection or the ◄ key to cancel.
LCD CONTRAST
Use the ▲ and ▼ keys to change the contrast of the LCD screen; press the ► key to confirm and
save the selection or the ◄ key to cancel.
REPORT CAL DATE
The printout of the test results may include date of the instrument’s calibration. Use the ▲ and
▼ keys to select if the calibration date is printed or hidden. Press the ► key to confirm and save
the selection or the ◄ key to cancel.
SET DATE FORMAT
The GSI Allegro supports two different date formats. Use the ▲ and ▼ keys to select either
DD/MM/YY or MM/DD/YY and press the ► key to confirm and save the selection or the ◄ key
to cancel.
HOSPITAL NAME
The printout of the test results may include the hospital name (up to 19 characters). To enter
the hospital name use the ▲ and ▼ and ◄ and ► keys to select the letter then press and briefly
hold the ► key to confirm. To delete the last letter briefly hold the ◄ key. Once the name has
been entered highlight the # key then press and briefly hold the ► key to save the name.
Highlight the # key then press and briefly hold the ◄ key to cancel.
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