21
[MODE]
Relative
Pressure
Calibration
Press [TEMP +] or [WIND -]
to adjust relative pressure up
or down
Reference Section 03 for
details on calibration of
relative pressure.
[MODE]
Temperatu
re Units of
Measure
Press [TEMP +] or [WIND -]
to change temperature units of
measure between °F and °C.
[MODE]
Wind Units
of Measure
Press [TEMP +] or [WIND -]
to change wind units of
measure between km/h, mph,
knots, m/s and bft.
[MODE]
Rain Units
of Measure
Press [TEMP +] or [WIND -]
to change rain units of
measure between in and mm.
[MODE]
Exit Set
Mode
[MODE] + 2 seconds means to press and hold the MODE button for two
seconds.
[MODE] means to press the MODE button.
Table 8: Set mode sequence and commands summarization
6.4 Barometric Pressure Display
6.4.1 Viewing Absolute vs. Relative Pressure
Press and hold [RAIN/PRE] for two seconds switch between Rain and Pressure.
While in Pressure mode Press [RAIN/PRE] to switch between absolute and
relative pressure
Absolute pressure is the measured atmospheric pressure, and is a function of
altitude, and to a lesser extent, changes in weather conditions.
Absolute pressure is not corrected to sea-level conditions.
Relative pressure is corrected to sea-level conditions. For further discussion of
press and hold the MODE button for two
Set mode sequence and commands summarization
Press and hold [RAIN/PRE] for two seconds switch between Rain and Pressure.
While in Pressure mode Press [RAIN/PRE] to switch between absolute and
Absolute pressure is the measured atmospheric pressure, and is a function of
level conditions. For further discussion of
Summary of Contents for WH3900
Page 44: ...44 List display Weather Map...
