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Weather Conditions Measured/Calculated

Vantage Pro Manual 

Page 51

Solar Radiation

What we call “current solar radiation” is technically known as Global Solar 
Radiation, a measure of the intensity of the sun’s radiation reaching a horizon-
tal surface. This irradiance includes both the direct component from the sun 
and the reflected component from the rest of the sky. The solar radiation read-
ing gives a measure of the amount of solar radiation hitting the solar radiation 
sensor at any given time, expressed in Watts /sq. m (W/m

2

).

Note:

The Vantage Pro measures energy received in the spectral band between 400 and 1100 nm.

UV (Ultra Violet) Radiation

Energy from the sun reaches the earth as visible, infrared, and ultraviolet (UV) 
rays. Exposure to UV rays can cause numerous health problems, such as sun-
burn, skin cancer, skin aging, and cataracts, and can suppress the immune sys-
tem. The Vantage Pro can help analyze the changing levels of UV radiation and 
can advise of situations where exposure is particularly unacceptable.

 !! CAUTION:  

Be aware, however, that the Vantage Pro’s UV readings do not take into account UV reflected 

off snow, sand, or water, which can significantly increase the amount of UV to which you are exposed. 
Nor does the Vantage Pro take into account the dangers of prolonged exposure to UV radiation. The 
readings do not suggest that any amount of exposure is safe or healthful. 

Do not use the Vantage 

Pro to determine the amount of UV radiation to which you expose yourself

Scientific 

evidence suggests that UV exposure should be avoided and that even low UV doses 
can be harmful.

The Vantage Pro displays UV readings in two scales: MEDs and UV Index. 
MED stands for Minimum Erythemal Dose, defined as the amount of sunlight 
exposure necessary to induce a barely perceptible redness of the skin within 24 
hours after sun exposure. In other words, exposure to 1 MED will result in a 
reddening of the skin. Because different skin types burn at different rates, 1 
MED for persons with very dark skin is different from 1 MED  for persons with 
very light skin.
Both the U.S. Environmental Protection Agency (EPA) and Environment Can-
ada have developed skin type categories correlating characteristics of skin with 
rates of sunburn. Tables 3a and 3b below list these skin types. 

T

ABLE

 A2: EPA S

KIN

 P

HOTOTYPES

S

KIN

 P

HOTOTYPE

S

KIN

 

COLOR

T

ANNING

 & S

UNBURN

 

HISTORY

1 - Never tans,
 always burns

Pale or milky white; alabaster

Develops red sunburn; painful swelling, skin peels

2 - Sometimes tans,
usually burns

Very light brown; sometimes
freckles

Usually burns, pinkish or red coloring appears;
can gradually develop light brown tan

Summary of Contents for and Vantage Pro

Page 1: ......

Page 2: ......

Page 3: ...e Pro Installation 14 Powering your Wireless Vantage Pro 14 Establishing reception between the Wireless Vantage Pro console to the Integrated Sensor Suite ISS 14 DISPLAYING THE VANTAGE PRO CONSOLE 15...

Page 4: ...MODE 26 Activating Weather Variables 26 Wind Speed and Direction 27 Temperature 27 Humidity 27 Wind Chill 28 Dew Point 28 Barometric Pressure 28 UV Ultraviolet Radiation 29 Heat Indices 29 Rain Year R...

Page 5: ...UMIDITY 44 WIND S PEED 44 DIRECTION 44 CHILL 44 RAIN 45 APPENDIX WEATHER DATA 47 WEATHER CONDITIONS MEASURED CALCULATED 47 Wind 47 Temperature 47 Apparent Temperature Measures 47 Relative Humidity 49...

Page 6: ...Page 6 Vantage Pro Console Manual ONE YEAR LIMITED WARRANTY 59 QUESTIONS CALL THE DAVIS S ERVICE CENTER 59 FCC P ART 15 CLASS B R EGISTRATION WARNING 60...

Page 7: ...ro logical algorithms A quick glance at the graphical icons predicts the general weather trend and a detailed forecast scrolls across the bottom of the screen letting you know what to expect Vantage P...

Page 8: ...ive different modes designed to give you quick and easy access to the information you need Setup Setup mode is used to enter the time date calibration numbers and other information required for the pr...

Page 9: ...g signals from up to eight separate transmitter stations including Wireless Integrated Sensor Suite A complete sensor package including Rain Temperature Humidity Wind Speed and Direction with options...

Page 10: ...displays Storage interval 1 5 10 15 30 60 or 120 minutes is set by the user The data logger will store approximately 2 9 18 27 53 107 or 213 days worth of data depending on the selected storage inter...

Page 11: ...xtremely accurate readings As with any precision instrument care must be used in its assembly and use Although installation of the Vantage Pro console is relatively simple following the steps outlined...

Page 12: ...power to the sensor array through the connecting cable you must use the AC power adapter or the optional Car Boat RV adapter to supply primary power The three C cell bat teries provide backup power an...

Page 13: ...ISS The Vantage Pro comes with 40 feet of cable Maximum cable length from ISS to console is 1000 feet See Optional Accessories on page 10 to purchase addi tional cable 1 Gently insert the console end...

Page 14: ...recharge them and they will not last as long After powering up and running through its self test mode the Vantage Pro console will automatically enter Setup Mode Setup Mode will lead you through setti...

Page 15: ...heaters or heating air condi tioning ducts If you are mounting the Vantage Pro console on a wall choose an inner or interior wall Avoid walls that heat up or cool down depending on the weather By cha...

Page 16: ...l attach the console over an empty switch box get dimensions and make template 2 Use an electric drill with a 29 136 or 3 5mm drill bit to make pilot holes in these locations 3 Using a screwdriver dri...

Page 17: ...The large LCD display is your window on cur rent and past environmental conditions as well as the place to find the forecast The keyboard allows you to interact with the station computer view current...

Page 18: ...a special operation key the 2ND key located in the upper right hand corner of the keypad The 2nd key The second key is used in conjuction with other keys to access alternate func tions Above each fun...

Page 19: ...ditions as well as the place to find the forecast The display is organized to maximize the information available to you The following section explains some of the features that may appear on your con...

Page 20: ...ield You must enter the correct latitude and longi tude and time zone for your location for the time of sunset to be accurate 7 2nd button indicator The 2nd indicator icon lights when the 2nd button i...

Page 21: ...ter the console is currently displaying Note Multiple sensors are available for the wireless Vantage Pro system only 12 Weather Ticker The Davis Weather Ticker is a unique and useful addition to the w...

Page 22: ...appear on the console Pressing DONE will take you to the next screen in the sequence Setup Mode Screen 1 Transmitters Screen 1 displays active transmitters located in your area The ticker will dis pla...

Page 23: ...o Setup Screen 3 To activate reception on different ID codes press the LEFT or RIGHT arrow key or the STATION key to scroll between transmitter IDs Note Station IDs do not have to be in order The fact...

Page 24: ...reen 3 lets you switch the retransmit feature on or off Use the or arrow key to choose Retransmit On or Retransmit Off Use the STATION key to choose and assign a transmission ID to the Console Receive...

Page 25: ...mer ica including Mexico may select Auto excepting Saskatchewan Indiana Ari zona Hawaii All other users should choose Manual Press and release the DONE key to move to Setup screen 9 Setup Mode Screen...

Page 26: ...January is the default Use the and arrows to select the appropriate month Exiting Setup Mode Press and hold down the DONE key to exit Setup Mode The screen will return to the Current Conditions screen...

Page 27: ...nt and entering the new measurement at the top of the list If the dominant wind direction does not vary over a 60 minute period only one arrow cap will be displayed To activate a digital readout of th...

Page 28: ...s the WIND CHILL key to select the Wind Chill field Wind Chill is displayed in either degrees Fahrenheit F or Centigrade C See Apparent Temperature Measures on page 47 Dew Point Current Dew Point Pres...

Page 29: ...to display the current UV read ing as an index Press again to see MEDS UV may be displayed as an index 1 7 or in MEDS See UV Ultra Violet Radiation on page 51 Heat Indices Heat Index Press and release...

Page 30: ...mm Year to date precipitation Press the RAINYR RAINDAY key a third time to display the year to date precipitation record Yearly rain displays the precipitation accumulated since the 1st of the month y...

Page 31: ...olar radiation reading Solar radiation is displayed as Watts per square meter W m2 See Solar Radiation on page 51 Note To display solar radiation readings you must have installed the optional Solar Ra...

Page 32: ...e the variable using the keypress sequences described above See Activating Weather Variables on page 26 2 Press and release the 2nd key 3 Press the Graph Units key The selected variable s units will c...

Page 33: ...nal UV radiation sensor Requires Soil Moisture sensor Requires Leaf Wetness sensor Accessing Highs and Lows Press the HI LOW button to enter the Highs and Lows mode The DAY and HIGHS icons will light...

Page 34: ...ious day s highs the date field will change to show you Each time you press the LEFT arrow you ll move another day backward The 24 dots in the graph field also represent each of the last 24 days the r...

Page 35: ...30 0 and will continue flashing until the temperature again rises above 30 0 Note See Table Vantage Pro Console Graphs Alarms on page 37 for a listing of the Vantage Pro Con sole s alarms Three speci...

Page 36: ...re finished setting alarms press DONE SET again and the console will return to current weather mode Setting the Time Alarm 1 To set the time alarm enter the alarm mode as described above 2 Press Time...

Page 37: ...tness C C H L H L H L Rainfall Rain T T T T T T Storm Rain Rate H H H H H H H Soil Moisture Soil Moisture C C H L H L H L Solar Radiation Solar Radiation A A H H H Temperature Inside Temp C C H L H L...

Page 38: ...for current 15 minutes 24 Hour Rain Alarm Specify total amount of rainfall for the current 24 hours Storm Alarm Specify totatl amount of rainfall for current storm MED Alarm Specify daily dose 10 Minu...

Page 39: ...erent graphs available Some graphs require optional sensors See above for details Entering and Exiting Graph Mode Press the GRAPH key to enter graph mode You ll know you re in graph mode because only...

Page 40: ...Chapter 3 Page 40 Vantage Pro Console Manual...

Page 41: ...ou are having problems with your unit please check the following guide before sending the unit in for repair You will be able to solve many of the problems yourself If after checking this guide you ar...

Page 42: ...ception A reading has exceeded the limits indi cated in the specifications table For temperature wind speed or rainfall calibration nmbers may be causing read ings to exceed display limits Check cali...

Page 43: ...or when outside tempera ture rises Make sure the console or sensor is not near a heater or other internal heat source lamps appliances etc Check calibration number and adjust if necessary Outside temp...

Page 44: ...od of one or two weeks Check ISS location Wind speed reads 0 either all the time or intermittently The problem may be with the anemome ter Call factory for return authorization Wind speed reading seem...

Page 45: ...Rain Vantage Pro Manual Page 45 No rain readings Make sure cable tie is removed from rain collector See ISS manual Problem Solution PG...

Page 46: ...Troubleshooting Page 46 Vantage Pro Manual...

Page 47: ...speed and direction from which it s blowing The 10 minute average wind speed is displayed in the weather ticker when wind is selected with the graph icon Temperature The Vantage Pro uses the primary t...

Page 48: ...humidity is low the appar ent 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 saturated with wat...

Page 49: ...o of the air s water vapor content to its capacity It is important to realize that relative humidity changes with temperature pres sure and water vapor content A parcel of air with a capacity for 10 g...

Page 50: ...Barometric Pressure The weight of the air that makes up our atmosphere exerts a pressure on the surface of the earth This pressure is known as atmospheric pressure Gener ally the more air above an ar...

Page 51: ...re exposed Nor does the Vantage Pro take into account the dangers of prolonged exposure to UV radiation The readings do not suggest that any amount of exposure is safe or healthful Do not use the Vant...

Page 52: ...ns Light tan brown or olive distinctly pigmented Rarely burns shows moderately rapid tanning re sponse 4 Always tans rarely burns Brown dark brown or black Rarely burns shows very rapid tanning respon...

Page 53: ...Weather Service is a forecast of the next day s noontime UV intensity The Index value displayed by the Vantage Pro is the result of a real time measurement TABLE A4 UV INDEX AND EXPOSURE CATEGORY INDE...

Page 54: ...m 0 dry to 15 Note Leaf Wetness is only available with the wireless Vantage Pro and the optional Leaf Wetness station Soil Moisture Soil Moisture as the name suggests is a measure of the moisture cont...

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Page 59: ...to the Maintenance Service and Repair Information brochure included with your station QU E S T IO N S CA L L T H E DA V IS S E R V IC ECE N T E R If you have any questions about our products please c...

Page 60: ...determined by turning the equipment on and off the user is encouraged to try to correct the interference by one or more of the following measures Reorient or relocate the receiving antenna Increase t...

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