Table 2. Example using meters and Celsius

 

Lower point

Higher point

Set reference altitude (real altitude)

1000 m

 

Displayed altitude

 

 

3000 m

Real outside temperature

+17.5 ºC

+6.5 ºC

Normal (table) temperature

+8.5 ºC

-4.5 ºC

Temperature offset (= real - normal)

+9

ºC

+11 ºC

Sum of temperature offsets

+9

ºC + +11 ºC = 20 ºC

 

Table 3 shows an example in which the temperature offsets are negative. This time imperial units are used. The reference altitude is set at 3280 feet. At 9840 feet the altitude difference is 6560 feet and the Suunto X6/X6M shows 100 feet too much (-14 ºF * 6560 ft * 0.0011/ºF = -100 ft). Your actual altitude is thus 9740 ft.

Table 3. Example using feet and Fahrenheit.

 

Lower point

Higher point

Set reference altitude (real altitude)

3280 ft

 

Displayed altitude

 

 

9840 ft

Real outside temperature

+36.3 ºF

+18.9 ºF

Normal (table) temperature

+47.3 ºF

+23.9 ºF

Temperature difference (= real - normal)

-9

ºF

-5 ºF

Sum of temperature offsets

-9

ºF + -5 ºF = -14 ºF

 

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Suunto X6m manual Example using meters and Celsius Lower point Higher point