Manual Davis DAV-6250EU Vantage Vue (page 49 of 56) (English)

702878

Zoom out

Zoom in

1/56

Wind Chill

Wind chill takes into account how the speed of the wind affects our perception of the air

temperature. Our bodies warm the surrounding air molecules by transferring heat from the

skin. If there is no air movement, this insulating layer of warm air molecules stays next to the

body and offers some protection from cooler air molecules. However, wind sweeps away that

warm air surrounding the body. The faster the wind blows, the faster heat is carried away and

the colder you feel. Wind has a warming effect at higher temperatures.

Note: There is no windchill when the air temperature is at or above 93° F (-34° C).

Heat Index

Heat index uses temperature and the relative humidity to determine how hot the air actually

“feels.” When humidity is low, the apparent temperature will be lower than the air

temperature, since perspiration evaporates rapidly to cool the body. However, when humidity

is high (i.e., the air is more saturated with water vapor) the apparent temperature “feels” higher

than the actual air temperature, because perspiration evaporates more slowly.

Note: Heat index and air temperature are equal at or below 0° F (-18° C).

Dew Point

Dew point is the temperature to which air must be cooled for saturation (100% relative

humidity) to occur, providing there is no change in water vapor content. The dew point is an

important measurement used to predict the formation of dew, frost, and fog. If dew point and

temperature are close together in the late afternoon when the air begins to turn colder, fog is

likely during the night. Dew point is also a good indicator of the air’s actual water vapor

content, unlike relative humidity, which takes the air’s temperature into account. High dew

point indicates high water vapor content; low dew point indicates low water vapor content. In

addition a high dew point indicates a better chance of rain, severe thunderstorms, and

tornados.

You can also use dew point to predict the minimum overnight temperature. Provided no new

fronts are expected overnight and the afternoon relative humidity is greater than 50%, the

afternoon’s dew point gives you an idea of what minimum temperature to expect overnight.

The higher the humidity is, the more accurate the dew point prediction.

Note: Dew point is equal to the air temperature when the humidity is 100%.

Rain

Vantage Vue incorporates a tipping spoon rain collector in the ISS that measures 0.01'' or 0.2

mm for each tip of the spoon. Your station logs rain data in the same units it is measured in and

converts the logged totals into the selected display units (inches or millimeters) at the time it is

displayed. Converting at display time reduces possible compounded rounding errors over

time.

Four separate variables track rain totals: “rain rate,” “daily rain,” “monthly rain,” and “yearly

rain.” Rain rate calculations are based on the interval of time between each spoon tip, which is

each 0.01'' or 0.2 mm rainfall increment.

Report abuse

Libble takes abuse of its services very seriously. We're committed to dealing with such abuse according to the laws in your country of residence. When you submit a report, we'll investigate it and take the appropriate action. We'll get back to you only if we require additional details or have more information to share.

Product:

Forumrules

To achieve meaningful questions, we apply the following rules:

First, read the manual;
Check if your question has been asked previously;
Try to ask your question as clearly as possible;
Did you already try to solve the problem? Please mention this;
Is your problem solved by a visitor then let him/her know in this forum;
To give a response to a question or answer, do not use this form but click on the button 'reply to this question';
Your question will be posted here and emailed to our subscribers. Therefore, avoid filling in personal details.

new questions and answers
new manuals

You will receive an email to register for one or both of the options.

Get your user manual by e-mail

Enter your email address to receive the manual of Davis DAV-6250EU Vantage Vue in the language / languages: English as an attachment in your email.

The manual is 6,35 mb in size.

You will receive the manual in your email within minutes. If you have not received an email, then probably have entered the wrong email address or your mailbox is too full. In addition, it may be that your ISP may have a maximum size for emails to receive.

Others manual(s) of Davis DAV-6250EU Vantage Vue

Davis DAV-6250EU Vantage Vue User Manual - English - 16 pages

Davis DAV-6250EU Vantage Vue Quick start guide - German - 28 pages

The manual is sent by email. Check your email

If you have not received an email with the manual within fifteen minutes, it may be that you have a entered a wrong email address or that your ISP has set a maximum size to receive email that is smaller than the size of the manual.

The email address you have provided is not correct.

Please check the email address and correct it.

Your question is posted on this page

Would you like to receive an email when new answers and questions are posted? Please enter your email address.

Info

Davis DAV-6250EU Vantage Vue Manual

Product: