ECOWITT HP3500 - Data Units; Coefficients

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Use a single press of MENU to go back to the Setup menu, or a long press to
go back to normal mode.
5.2.2 Data Units
In the data unit sub-menu, you can change settings for the following:
• Temperature: Select between F and C by repeatedly pressing the “+”
button
• Barometer units: Select between hPa, inHg, and mmHg by repeatedly
pressing the “+” button
• Wind speed: Select between mph, knots, m/s, km/h and bft by repeatedly
pressing the “+” button
• Solar radiation: Select between w/m2, klux and fc by repeatedly pressing
the “+” button
• Rainfall: Select between in and mm by repeatedly pressing the “+” button
Use a single press of MENU to go back to the Setup menu, or a long press to
go back to normal mode.
5.2.3 Coefficients
In the coefficients sub-menu, you can change settings for the gain value of
some sensor values. Gain means that the sensor value is multiplied by a
“gain” or “factor.” When “gain” is larger than 1 value are increased
proportionally, when it is less than 1 they are decreased proportionally.
Generally, you should not have to change these gain values, but if you know
for sure that your sensor readings are systematically incorrect by a
proportional amount (not an offset), you can edit the following:
• Rain: Register rain in greater amounts (> 1) or lesser amounts
(< 1).
• Wind: Register wind at greater speeds (> 1) or lesser speeds
(< 1).
• Solar radiation: Register light in greater amounts (> 1) or lesser amounts
(< 1).