About the altitude calibration feature
By setting the actual altitude at a location where you already know the altitude, the difference between the relative
altitude measured at that location and the actual altitude is stored in the watch as the correction value by the altitude
calibration feature.
At the time of purchase, the calibration value is set to 0.
1
2
3
When relative altitude is
When relative altitude is
lower than actual altitude
lower than actual altitude
When relative altitude is
lower than actual altitude
1
2
3
When relative altitude is
When relative altitude is
higher than actual altitude
higher than actual altitude
When relative altitude is
higher than actual altitude
(1)
Actual altitude
(2)
"Relative altitude" measured by the watch (pressure sensor)
(3)
Difference between (1) and (2) = "Calibration value"
Notes on altitude measurements
❏
This product is not intended for taking measurements that requires professional precision. Measurement
function readings are intended for general reference only.
❏
The altitude displayed by this product is calculated using atmospheric pressure data. When measuring in
ALT
mode, altitude information acquired by receiving GPS satellite signals is not used.
❏
Weather conditions change over time. Whenever possible, calibrate the altitude before measuring.
❏
The altitude display range is 0 to 9,999 m. The altitude is displayed as 0 when it is less than 0 m.
Notes on the effects of temperature
Measurement results may differ due to the effects of changes in temperature.
MB73 (TR-MB7) User’s Guide
Altitude Measurements (ALT)
77
Summary of Contents for Trume TR-MB7
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