Aercus WS1093 Panduan Pengoperasian - Halaman 13

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Pressure bar graph

Touch the PRESSURE BAR GRAPH section and then press the + or – button to toggle the bar graph time

scale between 12 hrs or 24 hrs for pressure history.

Weather Forecast

1) Touch the WEATHER FORECAST section, the + and – button will be flashing. Touch the + button or –

button to shift the display between SUNNY, PARTLY CLOUDY, CLOUDY and RAINY icon (not generally

required as this will adjust automatically over a few days as the unit collects data and begins

forecasting).

2) Touch the WEATHER FORECAST section again, the + and – button will be flashing. Touch the + button

or – button to set the pressure threshold from 2-4hPa (default 2hPa).

3) Touch the WEATHER FORECAST section a third time, the + and – button will be flashing. Touch the +

button or – button to set the storm threshold from 3-9hPa (default 4 hPa).

Note: The prediction is for the upcoming 12 - 24 hours and does not necessarily reflect the current

weather situation. It calculates on the basis of the pressure changes that have occurred during the past 24

hours the most likely weather forecast for the upcoming 12 - 24 hours. The weather forecast predicted

has a probability of 70%. This means that observed over a period of several weeks, 7 from 10 forecasts for

the upcoming 12 - 24 hours will be correct. Observing the forecast for only a few days is not sufficient to

draw any conclusions re accuracy.

Notes on the pressure sensitivity setting for weather forecasting

The pressure threshold can be set to suit the user's requirements for weather forecasting - anywhere

from 2-4hPa (default 2hPa). Areas that experience frequent changes in air pressure require a higher

setting compared to areas where the air pressure is stagnant. For example if 4hPa is selected, then there

must be a fall or rise in air pressure of at least 4hPa before the weather station will register this as a

change in weather.

Notes on the storm threshold setting

The storm threshold can be set to suit the user's requirements for storm forecasting - anywhere from

3-9hPa (default 4hPa). When there is a fall below the pressure threshold within any given 3 hour period,

the storm forecasting will be activated and the clouds with rain icon as well as the tendency arrows will

flash for 3 hours indicating the storm warning feature has been activated.

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WS1093