Alecto WS-4900 Panduan Pengguna - Halaman 11

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4.5 Barometer (air pressure):

If this screen isn't visible, first briefly press the button

6. Indicates whether the air pressure is shown in hPa (hectoPascal), in inHg (inch mercury pressure) or

mmHg (millimeter mercury pressure) (see also * add 6)

* add 5: An absolute air pressure indicates the air pressure that is present regardless of the altitude at which

you measure the air pressure. A relative air pressure is the air pressure that is compensated for the altitude

at which you measure the air pressure. For a correct weather forecast you need the relative air pressure.

You may set the desired unit as follows:

1. Press and hold the

2. Use / to select the desired unit: REL for relative, ABS for absolute

3. Briefly press the

Refer to the chapter 7 for adjusting the relative air pressure display in case you're using the weather station

somewhere a lot higher than sea level.

add 6: In the Benelux one uses the hectopascal notation. Before, the air pressure was sometimes also

expressed in bars. 1 mbar equals 1 hPa. Briefly press the

4.6 Rain:

If this screen isn't visible, first briefly press the

7. Indication of whether the amount of rainfall is displayed in "in" (inch) or in "mm" (millimetre). (see also

* add 7)

* add 3: No indication = : the rainfall during the past hour (this is updated every 6 minutes and shows the

amount of rainfall during the past 60 minutes).

DAILY = : rainfall of today, calculated from midnight.

WEEKLY = : rainfall from the beginning of the week (Monday)

MONTHLY = : rainfall in this month

Briefly press the

* add 7: You may set the desired unit as follows:

1. press and hold the

2. use / to select the desired unit

3. briefly press the

1. 'barometer' indication

2. Actual air pressure

3. This shows the air pressure trend over the last 24 hours

4. Air pressure per hour over the last 24 hours

5. Indicates whether the relative or absolute air pressure is shown (see

also * add 5)

button for 2 seconds

button (if the air pressure now starts flashing, press the

1. 'rain' indication

2. Illuminates when the max. rain alert is set

3. Indicates over which period the displayed rainfall amount is mea-

sured (see also * add 3) .

4. Rainfall per day over the last 5 days

5. Rainfall trend over the last 5 days

6. Today's rainfall amount

button to switch between these indications.

button for 2 seconds

buttons

button to switch between these notations.

button

button again)