Davis GroWeather Console Manual de usuario

G RO W EATHER ™ S YSTEM C ONSOLE U SER ’ S M ANUAL Product # 7450 & 7455

Optional AccessoriesGroWeather Manual Page 3 • GroWeatherLink Software Logs data gathered by the GroWeather, downloads it to your PC, and generates

Introduction to the GroWeather SystemPage 4 GroWeather Manual

GroWeather Manual Page 5 Chapter 2 G RO W EATHER S YSTEM O VERVIEW T HE K EYBOARD The GroWeather’s keyboard contains two types of keys: function

GroWeather System OverviewPage 6 GroWeather Manual W EATHER C ONDITIONS M EASURED /C ALCULATED This section outlines each of the weather conditions

Weather Conditions Measured/CalculatedGroWeather Manual Page 7 Growing Degree-Days (Heat Units) Because temperature plays an important part in the r

GroWeather System OverviewPage 8 GroWeather Manual Air, Soil, and Apparent Temperature The GroWeather uses the primary temperature sensor to measure

Weather Conditions Measured/CalculatedGroWeather Manual Page 9 Wind The GroWeather measures wind speed, wind direction, and wind run. Wind run is a

GroWeather System OverviewPage 10 GroWeather Manual Rainfall The GroWeather provides two separate registers for tracking rainfall totals. One is refe

Weather Conditions Measured/CalculatedGroWeather Manual Page 11 Relative Humidity Humidity itself simply refers to the amount of water vapor in the

GroWeather System OverviewPage 12 GroWeather Manual Time The GroWeather has a clock and a calendar for tracking time and date. The cal-endar automati

Product Numbers: 7450/7455Davis Instruments Part Number: 7395-070GroWeather™ Console, Standard & IndustrialRev. C Manual (7/16/99)This product co

AutoClearGroWeather Manual Page 13 A UTO C LEAR The GroWeather’s AutoClear function may be used to automatically clear some or all of the “daily” va

GroWeather System OverviewPage 14 GroWeather Manual The table below summarizes the highs and lows stored by the GroWeather. A LARMS The GroWeather fe

AlarmsGroWeather Manual Page 15 The three special alarms are described below: •ETo ETo is updated only once an hour, on the hour. If during a given

GroWeather System OverviewPage 16 GroWeather Manual

GroWeather Manual Page 17 Chapter 3 U SING THE G RO W EATHER U SING THE E NTER K EY The ENTER key is used to enter or change data (such as an

Using the GroWeatherPage 18 GroWeather Manual • Press and hold Pressing and holding ENTER makes the next digit in the value active and to begins cy

Using the Enter KeyGroWeather Manual Page 19 6. Press and hold ENTER down. The “tens” digit will begin to cycle through the possible entries (0 to 5

Using the GroWeatherPage 20 GroWeather Manual E VAPO T RANSPIRATION The GroWeather displays the daily ETo sum, the total ETo for the period, and the

EvapoTranspirationGroWeather Manual Page 21 4. To display the date on which the current period started and the number of days in the period, press E

Using the GroWeatherPage 22 GroWeather Manual Clearing Daily ETo Sum You may clear the daily ETo sum at any time to begin a new “daily” ETo total. 1.

G RO W EATHER ™ S YSTEM C ONSOLE U SER ’ S M ANUAL

Growing Degree-DaysGroWeather Manual Page 23 2. To display the total degree-days for the period, press DEG DAYS again. The total degree-days for the

Using the GroWeatherPage 24 GroWeather Manual 6. To display the date on which the current period started and the number of days in the period, press

Air, Soil, and Apparent TemperatureGroWeather Manual Page 25 Clearing Daily Degree-Days Sum You may clear the daily degree-days sum at any time to b

Using the GroWeatherPage 26 GroWeather Manual2. To display the current soil temperature, press TEMP again.The current soil temperature appears on the

Air, Soil, and Apparent TemperatureGroWeather Manual Page 27Selecting Units of MeasureTo select the desired unit of measure, simply press UNITS while

Using the GroWeatherPage 28 GroWeather ManualWINDThe GroWeather displays current wind speed, daily wind run, average wind run per day during the perio

WindGroWeather Manual Page 293. To display the average daily wind run during the period, press WIND again.The average daily wind run appears on the r

Using the GroWeatherPage 30 GroWeather ManualSelecting Units of MeasureTo select the desired unit of measure and resolution, simply press UNITS while

Solar RadiationGroWeather Manual Page 31SOLAR RADIATIONThe GroWeather displays the current solar radiation intensity, the daily inci-dent solar energ

Using the GroWeatherPage 32 GroWeather Manual5. To display the status of the AutoClear function for daily solar energy, press SUN again.If the AutoCle

Page i GroWeather Manual T ABLE OF C ONTENTS I NTRODUCTION TO THE G RO W EATHER S YSTEM . . . . . . .1 O PTIONAL S ENSORS . . . . . . . .

RainfallGroWeather Manual Page 33Viewing Rainfall1. To display daily rainfall, press RAIN.The amount of daily rainfall appears on the right of the di

Using the GroWeatherPage 34 GroWeather ManualSelecting Units of MeasureTo select the desired unit of measure, simply press UNITS while viewing any of

Barometric PressureGroWeather Manual Page 35AlarmsYou may set a high alarm for daily rainfall. (See “Alarms” on page 47.)BAROMETRIC PRESSUREThe GroWe

Using the GroWeatherPage 36 GroWeather Manual• Falling Barometric PressureIf barometric pressure fell by 0.02 inches of Hg (0.5 mm, or 0.7 hPa) or mor

Barometric PressureGroWeather Manual Page 37Entering Barometric PressureBecause atmospheric pressure varies with both altitude and local weather con-

Using the GroWeatherPage 38 GroWeather Manual4. To view the date on which the barometric pressure was stored, wait four seconds without pressing a key

Dew-Point and Leaf WetnessGroWeather Manual Page 392. To display the status of the AutoClear function for relative humidity (On/Off), press HUM again

Using the GroWeatherPage 40 GroWeather Manual2. To display leaf wetness, press DEW again.Depending on which sensor you have selected, the display will

TimeGroWeather Manual Page 41TIMEThe GroWeather displays the current time, date, year, and the time at which the GroWeather performs the AutoClear ea

Using the GroWeatherPage 42 GroWeather Manual4. To display the time at which the GroWeather executes the AutoClear function each day, press TIME again

Table of Contents Page ii A IR , S OIL , AND A PPARENT T EMPERATURE . . . . . . . . . . . . . . . . . . 25 Viewing Air and Soil Temperature, T-H I

TimeGroWeather Manual Page 43Selecting Display FormatTo select the desired display format, simply press UNITS while viewing either the time or the da

Using the GroWeatherPage 44 GroWeather Manual3. Press any function key to exit.The GroWeather saves the AutoClear time. At the set time each day, the

Highs and LowsGroWeather Manual Page 45HIGHS AND LOWSThe GroWeather stores highs/lows for many of its functions. The table con-tained in “Highs and L

Using the GroWeatherPage 46 GroWeather Manual4. If a function stores/displays both a high and a low, press Recall again to view the low.The low readin

AlarmsGroWeather Manual Page 47ALARMSAll alarms (except ETo, barometric pressure, dew-point, and time) behave in basically the same way. The general

Using the GroWeatherPage 48 GroWeather ManualSetting a Normal Alarm ThresholdFollow the procedure below for instructions on setting a standard high or

AlarmsGroWeather Manual Page 49“Daily” ETo AlarmThe “daily” ETo alarm may be displayed and set as described in “Alarms” starting on page 47. However,

Using the GroWeatherPage 50 GroWeather ManualSetting the Dew-Point AlarmThe dew-point alarm is a special alarm that is triggered when the temperature

Enabling/Disabling AutoClearGroWeather Manual Page 513. Press and hold down CLEAR until a series of dashes replaces the alarm threshold on the displa

Using the GroWeatherPage 52 GroWeather ManualGENERAL HIGH/LOW CLEARThe GroWeather includes a general clear feature which enables you to quickly clear

Page iii GroWeather Manual T IME . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41 Displaying Time Function

Display ScanGroWeather Manual Page 53DISPLAY SCANThe GroWeather comes with two pre-programmed scan routines which contin-uously cycle through various

Using the GroWeatherPage 54 GroWeather ManualWind SpeedYou may change the wind CAL to adjust the wind speed readings according to the equation shown b

Calibration NumbersGroWeather Manual Page 55Changing Calibration Numbers1. Press the appropriate function key as necessary to display the reading for

Using the GroWeatherPage 56 GroWeather ManualPRIMARY POWER AND BATTERY BACKUP INDICATORSThe GroWeather display contains two “troubleshooting” indicato

G RO W EATHER S YSTEM C ONSOLE Q UICK R EFERENCE F UNCTION K EYS The lists below indicate what condition appears when you press each function ke

Table of Contents Page iv

GroWeather Manual Page 1 Chapter 1 I NTRODUCTION TO THE G RO W EATHER S YSTEM For gardeners, growers, forestry or public-safety agencies, golf

Introduction to the GroWeather SystemPage 2 GroWeather Manual O PTIONAL S ENSORS The following optional sensors enable the GroWeather to measure and