background image

 

4

ABOUT WWVB (Radio Controlled Time) 

 

 

The NIST (National Institute of Standards and Technology—Time and Frequency 
Division) WWVB radio station is located in Ft. Collins, Colorado and transmits the 
exact time signal continuously throughout the United States at 60 kHz.  The signal 
can be received up to 2, 000 miles away through the internal antenna in the weather 
station.  However, due to the nature of the earth’s ionosphere, reception is very 
limited during daylight hours.  The weather station will search for a signal every 
night when reception is best.  The WWVB radio station derives its signal from the 
NIST Atomic clock in Boulder, Colorado.  A team of atomic physicists is 
continually measuring every second, of every day, to an accuracy of ten billionths of 
a second per day.  These physicists have created an international standard measuring 
a second as 9,192,631,770 vibrations of a Cesium-133 atom in a vacuum. 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

Summary of Contents for WS-7025U

Page 1: ...WS 7025U Wireless 433 MHz Radio controlled Weather Station Instruction Manual...

Page 2: ...ting Day Date and Year 10 11 Selecting F or C 11 Setting the LCD Contrast 11 Features Back Light 12 Weather Forecast 12 13 Indoor Temperature Humidity Comfort Level Indicator 14 Outdoor Temperatures 1...

Page 3: ...ne strip double sided adhesive tape 5 Instruction Manual and Warranty Card ADDITIONAL EQUIPMENT not included 1 Two fresh AA 1 5V batteries for indoor weather station 2 Two fresh AA 1 5V batteries for...

Page 4: ...ther station However due to the nature of the earth s ionosphere reception is very limited during daylight hours The weather station will search for a signal every night when reception is best The WWV...

Page 5: ...s you can place your remote temperature sensor outdoors and set your time The remote temperature sensor should be placed in a dry shaded area The remote temperature sensor has a range of 80 feet Any w...

Page 6: ...space provided at the lower central position of the battery cover then push up and pull out on the battery cover 2 Observe the correct polarity and install 2 AA batteries 3 Replace the battery cover...

Page 7: ...step to program that setting I FUNCTION KEYS The function keys are operated by pressing the top or bottom of the key corresponding to the operation that you want to perform II 12 OR 24 HOUR TIME SETT...

Page 8: ...concerned with the ones in the chart above 4 Press and release the SET button to confirm and advance to the Daylight Saving Time setting IV DAYLIGHT SAVING TIME DST SETTING 1 Press and hold the SET bu...

Page 9: ...ny manually set time The WWVB tower icon appearing in the TIME LCD will flash when a signal search is in progress will remain steady when the signal has been received and nothing will be displayed in...

Page 10: ...ing Monday is the default setting for the weekday 1 1 is the default setting for the numeric month and day and 1999 is the default setting for the year The day date and year will be automatically set...

Page 11: ...ase the SET button to confirm your selection and to advance to the LCD contrast setting VIII SETTING THE LCD CONTRAST 1 Press and hold the SET button for 3 seconds or until 12h or 24h flashes in the D...

Page 12: ...air pressure over time The WS 7025U averages past air pressure readings to provide an accurate forecast creating a necessity to disregard all weather forecasting for 12 24 hours after the unit has be...

Page 13: ...ly to rainy although it is possible for the change to occur quickly If the symbols do not change then the weather has not changed or the change has been slow and gradual B WEATHER TENDENCY ARROWS Othe...

Page 14: ...e is explained in further detail in section VI Adding Remote Temperature Sensors V MINIMUM AND MAXIMUM TEMPERATURE RECORDS The WS 7025U keeps a record of the MINIMUM and MAXIMUM temperature and the ti...

Page 15: ...appears in the upper center location of the flashing OUTDOOR LCD indicating that the maximum temperature and the time and date of occurrence are displayed 3 While MAX is still displayed press the OUT...

Page 16: ...grammed time To deactivate the alarm press the AL1 button removing the 1 icon from the screen To reactivate the alarm press the AL1 button again 6 After each activation or deactivation the programmed...

Page 17: ...eratures Note When setting up multiple units it is important to remove the batteries from all existing units in operation Then insert batteries into all the remote temperature sensor units in numeric...

Page 18: ...s the records for the selected remote temperature sensor unit will be reset MOUNTING Note Before permanently mounting ensure that the indoor weather station is able to receive WWVB signals from the de...

Page 19: ...4 Screw mounting bracket onto the mounting surface Ensure that the screws are flush with the bracket B MOUNTING WITH ADHESIVE TAPE 1 With a nonabrasive solution clean and dry the back of the mounting...

Page 20: ...sh to use the table stand all that is required is to place the indoor temperature station in an appropriate location B WALL MOUNTING 1 Remove the table stand To do this pull down on the stand from the...

Page 21: ...t La Crosse Technology Problem Hour is incorrect minute and date are correct Solution Be sure correct time zone and daylight saving time is selected Problem The LCD is faint Solution 1 Set the LCD con...

Page 22: ...displays and units with a soft damp cloth Do not use solvents or scouring agents They may mark the displays and casings Do not submerge in water Immediately remove all low powered batteries to avoid l...

Page 23: ...king interval Every 10 seconds Indoor humidity checking interval Every 1 minute Outdoor temperature checking interval Remote Temperature Sensor Every 1 minute Outdoor temperature reception Indoor Weat...

Page 24: ...d for the repairs or examination The owner must pay any shipping charges incurred in getting your La Crosse Technology Ltd product to a La Crosse Technology Ltd authorized service center La Crosse Tec...

Page 25: ...nformation contact La Crosse Technology 2809 Losey Blvd S La Crosse WI 54601 Phone 608 782 1610 Fax 608 796 1020 e mail support lacrossetechnology com warranty work sales lacrossetechnology com inform...

Reviews: