Bedienungsanleitung La Crosse WS-1510-IT (Seite 6 von 13) (Englisch)

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Center will be more accurate compared to use in areas where the

weather is stagnant most of the time (for example mostly sunny).

If the Weather Center is moved to another location significantly higher

or lower than its initial standing point (for example from the ground floor

to the upper floors of a house), discard the weather forecast for the next

48-60 hours, as the Weather Center may mistake the new location as

being a possible change in air-pressure when really it is due to the

slight change of altitude.

WEATHER TENDENCY INDICATOR

Working together with the weather icons is the weather tendency

indicators (arrow located on the left and right sides of the weather

icons). When the indicator points upwards, it means that the air-

pressure is increasing and the weather is expected to improve, but

when indicator points downwards, the air-pressure is dropping and the

weather is expected to become worse.

Taking this into account, one can see how the weather has changed

and is expected to change. For example, if the indicator is pointing

downwards together with cloud and sun icons, then the last noticeable

change in the weather was when it was sunny (the sun icon only).

Therefore, the next change in the weather will be cloud with rain icons

since the indicator is pointing downwards.

Note:

Once the weather tendency indicator has registered a change in air

pressure, it will remain permanently visualized on the LCD.

AIR PRESSURE HISTORY (ELECTRONIC BAROMETER

WITH BAROMETRIC PRESSURE TREND)

The bottom section of the LCD also shows the relative air pressure

value and the air pressure history.

Depending on programming conditions, display of the history of air

pressure is in the form of a graph consisting of vertical bars.

The bar graph of the electronic barometer shows the air pressure

history of the past 12 hours in five 3-hour steps.

The horizontal axis represents the last 12 hours air pressure recording

(-12, -9, -6, -3 and 0 hour). The bars are plotted at each of the 5 steps

and give the trend over the recorded period. The scale on the right

Air pressure

changes in inHg

Air pressure

changes in hPa

compares the result. The "0" in the middle of this scale determines the

current air pressure.

The vertical axis represents the air pressure changes in inHg (+0.12,

+0.06, 0, -0.06, -0.12. The “0” represents the current air pressure). The

newly measured pressure was compared to the previously recorded

pressure reading. The pressure change is expressed by the difference

between the current ("0h") and the past readings in division of ±2 hPa

or ±0.06 inHg. If the bars are rising, this indicates that the weather is

getting better due to an increase in air pressure. If the bars go down it

indicates a drop of the air pressure and the weather is expected to get

worse from the present time "0".

At every full hour, the current air pressure is used as a basis for the

display of a new graph bar. The existing graph is then moved one

column to the left.

Note:

For accurate barometric pressure trend, the Weather Center should

operate at the same altitude. For example, it should not be moved.

Should the unit be moved, for instance from the ground to the second

floor of the house, the readings for the next 48-60 hours shall be

discarded.

Note:

The bar graph will scroll right to light regularly to prevent LCD burnout.

WIND DIRECTION AND WIND SPEED MEASUREMENT

In normal display mode, the second section of the LCD shows the

following wind data.

• Wind direction (shown on the a compass scale of 16 divisions)

and wind speed/ gust in Beaufort scale

• Wind chill in °F or °C

• Wind Speed in km/h, mph or m/s

• Gust in km/h, mph or m/s (displayed when in Mode 2, by pressing

the SET key shortly)

Pointer indicates the

currently detected wind

direction

Text showing wind speed

in Beaufort scale

Wind speed or gust will be show

This alarm symbol

indicates that the alarm

is set On

Wind chill

RAINFALL MEASUREMENT

The total rainfall and 24 hour rainfall measurement is displayed in the

fourth section of the LCD, in the unit of mm or inch.

To View the 24-hour rainfall or the Total rainfall reading:

1. In normal display, press SET key once and the display will shift to

Mode 2.

2. Press + key consecutively key to toggle between the 24-hour

rainfall, Total rainfall and Rel. pressure reading.

VIEWING THE HISTORY DATA

The weather station can store up to 140 sets of weather data which are

recorded automatically at 3-hour intervals after the weather station is

powered up, at the nearest time of 0:00, 03:00, 06:00, 09:00, 12:00,

15:00, 18:00 and 21:00. For instance, if user has manually set the time

as 14:52 after installing batteries, the first history record will be made at

the coming 15:00 automatically. Then the second record will be on

18:00 and so on.

Each weather record includes the Wind direction, Wind speed/ gust in

Beaufort scale, Wind chill temperature, wind speed/gust, dew point,

Outdoor temp and humidity, relative pressure, 24-hour rainfall and total

rainfall, pressure history and weather tendency. Also, the time and date

of recording will be displayed.

Note:

In order to acquire the correct time of recording of the history records,

you shall manually set the current time as soon as installing batteries to

the weather station. Afterwards, you should avoid changing the pre-set

time as it will also alter the recorded "time of recording" of each history

record, which may lead to confusion.

To view the weather history:

1. In normal display, press the HISTORY key. The latest weather

record will be shown with the date and time of recording. The

"HISTORY" icon will be displayed at the bottom of the LCD.

2. When viewing History records, user may shift to see the Mode 1

or Mode 2 data by pressing the SET key.

(Mode 1: with wind speed + outdoor Temp + Rel. pressure;

Mode 2 : with wind gust + Dew point + rainfall data)

24 hour

rainfall icon

Total

rainfall

icon

24 hour rainfall

amount

Total rainfall

amount

Note: If user wants to choose to view total rainfall or 24-hour rainfall in

history records, he shall first in normal display choose to show the

particular rainfall data, the press History key and SET key to view the

particular rainfall data in History records.

3. When viewing History records, press MIN/ MAX to view older

records.

(Press MIN/MAX and + key to view "Previous" and "Next" record

respectively. The records are made at 3-hour intervals)

Note:

• The stored history records will not be retained after battery

change or whenever battery is removed.

• The total rainfall value will be exhibited in whole number (no

decimal place) in the history record.

VIEWING THE MAXIMUM/ MINIMUM WEATHER DATA

The weather station will record the maximum and minimum value of the

various weather data with time and date of recording automatically. The

following stored maximum and minimum weather data can be viewed

by pressing the MIN/MAX key in normal display mode.

1. Min outdoor temperature with the date and time of recording

HISTORY icon

MIN outdoor

temperature

value

Time and date of

recording

La Crosse WS-1510-IT Seite 6

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