TM 262
2-14 Revised 4/11/08
The altitude calibration mode can only be entered with the instrument is powered up from its
Off state while the program mode (PROG) button is depressed. Hold the PROG button for
approximately five seconds.
1. When entering the altitude mode, the display will read as follows:
Altitude Mode
ECV 2.0
cm
3
9.99
Standard
(E71) is displayed in the bottom right of the display until the probe is in the 2.0 cm
3
cavity.
2. Place the probe into the 2.0 cm
3
cavity provided with the instrument and check cm
3
value
against the altitude correction table for accuracy.
3. If the measured volume is not within the published table value ±/.1 cc, then you should
exit the altitude mode by pressing the PROGRAM MODE button and contact field
service. Providing the measured volume agrees with the published table ±/.1cc, you may
proceed with the altitude adjustment.
4. With the probe still in the 2.0 cm
3
cavity, press the PAGE button to enter the custom
calibration mode. Custom will appear on the fourth line of the display.
5. 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 2.0 cc, the volume is adjusted to the current
site. If the value is not 2.0 cc ±.01, press the SAVE button M+ to customize the volume
measurement to the current altitude. The measured volume should now read 2.0 cc.
6. To exit the altitude mode, press the PROG pushbutton to return to normal mode.
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