Hanna Instruments HI 4421 - Manual (Page 41)

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The meter contains a built-in barometer, and it is able to automatically compensate for changes in barometric
pressure. If another pressure value than the barometer’s reading is to be used, then the manual pressure
feature must be enabled. (See
DO Setup ).
The table below contains a conversion altitude (m) to pressure (mmHg) for the altitude values from the
previous table.
e d ut itl A
) m (
0 0 0 3 0 0 6 0 0 9 0 0 2 1 0 0 5 1 0 0 8 1 0 0 1 2 0 0 4 2 0 0 7 2 0 0 0 3 0 0 3 3 0 0 6 3 0 0 9 3 0 0 0 4
er us se r P
)g H m m (
0 6 7 2 3 7 5 0 7 9 7 6 4 5 6 0 3 6 7 0 6 4 8 5 3 6 5 2 4 5 2 2 5 3 0 5 4 8 4 7 6 4 1 6 4