Welch Allyn TM286 Auto Tymp - User Manual - Manual (Page 49)

Directions for Use Routine Maintenance 45
To enter altitude calibration, press , and simultaneously. The LCD will now
display the Settings Main Menu. When entering the Settings Main Menu, the display will
read as follows:
The cursor will be next to Altitude - user check. Press to enter Altitude - user check.
1. When entering the altitude mode, the display will read as follows:
2. Select 226 Hz probe tone.
3. Place the probe into the 2.0 cm
3
cavity provided with the instrument and check the
cm
3
value against the altitude correction table for accuracy.
4. If the measured volume is not within the published table value ±/.1 cm
3
, then exit the
altitude mode by pressing the PROGRAM MODE button and contact field service.
Providing the measured volume agrees with the published table ±/.1 cm
3
, proceed
with the altitude adjustment.
5. With the probe still in the 2.0 cm
3
cavity, press the PROG button to enter the custom
calibration mode. CUSTOM will appear on the fourth line of the display.
6. The value now displayed in the cm
3
display area is the volume measured and adjusted
to the current altitude. If the value displayed is 2.0cm
3
, the volume is adjusted to the
current site.
7. If the value is not 2.0 cm
3
, press the SAVE button to adjust the volume
measurement to the current altitude.
The measured volume should now read 2.0 cm
3
.
8. To exit the altitude mode, press the PAGE button to return to the Settings main
menu.
9. Move the cursor using and to Back to Normal and press the PAGE
button to return to the Normal mode.
Altitude - user check
Cal modes
Page modes
- Back to normal -
Altitude Mode
ECV 2.0
cm 3 9.99
Standard
Note CAL MODES and DIAG MODES can only be accessed by Welch Allyn trained
individuals. If these items are selected, "Invalid Selection" will flash on the bottom
right to indicate they are currently disabled.
WARNING Welch Allyn recommends only trained personnel enter the
Calibration and Diagnostic submenus listed below the Altitude Adjustment in
Calibration mode.
M +