La Crosse Technology WT-3143H Quick Setup Instructions Manual

La Crosse Technology WT-3143H Quick Setup Instructions Manual Manual pdf 1 page image

WT-3143HRadio Controlled Analog ClockQuick Setup InstructionsWelcome to the world of atomic timekeeping technology. We hope youwill enjoy the convenience of never having to set your clock again andthe confidence of knowing exactly what time it is. A locking pin may be placed into the movement at the factory toprevent shifting of the hands during shipment. Remove the lockingpin directly below the Reset button. This will unlock the hands andenable the clock to set itself after receiving the signal. Set the clock to your time zone by moving the indicator arrow toappropriate zone: P (UTC-8 Pacific Time), M (UTC-7 MountainTime), C (UTC-6 Central Time), E (UTC-5 Eastern Time) Enable the Daylight Savings Time Auto Adjust feature by movingthe DST switch to “ON”. If you are in a time zone that does notfollow DST, make sure you set the DST mode to “OFF”. TheDaylight Savings Time feature is disabled when the switch is set to“OFF”. Insert 1 new AA, LR6 1.5 volt ALKALINE battery in the analogclock battery compartment according to the polarity marked on thecase. Once the battery is installed, the radio reception mode is activatedand the second, minute and hour hands will automatically reset tothe 12:00 position. Once the hands are in the 12:00 position, themovement will start searching for the radio signal. The searchprocedures takes approximately 3 to 10 minutes after all handshave set to the 12:00 position. If a signal is found within the first 3to 10 minutes, the clock will set to the correct time. If the clockdoes not receive a radio signal soon after activated, the clock willstart running from the 12:00 position and will continue to run. Inthis case, do not attempt to reset the hands manually even thoughthe time displayed on the clock is incorrect. The clock issynchronizing to the WWVB signal and once the radio signal isdecoded, the hands will automatically adjust to the correct time. The WAVE button can be used to attempt an enforced signalreceipt. To activate, hold the WAVE button down for 3+ seconds.Once the WAVE feature is activated, the hands will automaticallyreset to the 12:00 position, and the movement will attempt toenforce a signal receipt from Fort Collins, CO. If the movementsuccessfully receives the signal, the clock will reset automatically tothe correct time. Generally, the signal enforced receipt takesapproximately 3-8 minutes. If the clock still fails to receive thesignal while in the WAVE mode, the clock will automatically leavethe WAVE mode. In this case, set the clock manually according toinstructions below and the time keeping function will be controlledby the movement’s micro-CPU. Manual Set: On rare occasions in certain areas, the clock may notbe able to utilize the radio-controlled function because of either thestrength of the signal or the geographic location. In this case, theclock can be set manually and used as a regular quartz wall clock.If it is necessary to set the clock manually, press and hold the SETbutton for 3+ seconds to activate the manual mode. Once theclock is in manual mode, there are two ways to move the minutehand forward. Hold the SET button down to move the minute handforward consistently. Or, press the SET button rapidly (more thanonce per second) to move the minute hand forward step by step (inminute increments). Use these features to move the minute handforward until the correct time is set. The clock will automaticallyleave manual mode after the SET button is not pressed for 6+seconds. Reset: If the clock does not respond to the various functionmodes, you can reset the clock by pressing the RESET button onthe movement case. Internal Synchronization: Once the clock has been set correctlyby the radio signal, the clock’s CPU operates continuously. Toensure accuracy, the clock synchronizes the position of the secondand minute hands to the time calculated by the CPU every day.Second hand synchronization occurs at 1:30 a.m. and 9:30 a.m.and minute hand synchronization occurs between 1:50 and 2:01am every day. Signal Interference: In some cases, the signal can be affected byweather conditions and electrical interferences, or the location ofthe clock itself may result in poor reception. If the clock has notsynchronized to the correct time within a few days of activation, youmay wish to move the clock to a different location. Try to place itnear an outside wall closest to the direction of Colorado. Avoidplacing the clock near electrical items such as TVs, microwaveovens and computers.NOTHING IS MORE PRECISELY MEASURED THAN TIME!Since the beginning of time, man has been fascinated with themeasurement of time and has devised more accurate machines to trapand measure time. Today, time is precisely measured in the UnitedStates by the most accurate clock in North America, the Atomic Clock ofthe US National Institute of Standards and Technology, Time andFrequency Division in Boulder, Colorado. A team of atomic physicistscontinually measures every second of every day to an accuracy of tenbillionths of a second per day. These physicists have created aninternational standard, measuring a second as 9,192,631,770 vibrationsof a Cesium 133 atom in a vacuum. This atomic clock regulates theWWVB radio transmitter located in Fort Collins, Colorado, where theexact time signal is continuously broadcast throughout the United Statesat 60 kHz to take advantage of stable long wave radio paths found in thatfrequency range. Radio waves at these low frequencies use the earthand the ionosphere as a wave-guide and follow the curvature of the earthfor long distances.The built in antenna system will receive the WWVB signal anywhere inNorth America within 2000 miles of Fort Collins where long-wave radioreception is undisturbed. A microprocessor activates the receiver andprocesses the time signal from Fort Collins overnight.Through the radio signals, La Crosse Technology atomic clocks alwayskeep precise time. The changeover from standard time to daylightsaving time, and vice versa, takes place automatically with the sameprecision.The La Crosse Technology atomic clock is designed for indoor use. Forindoor locations, select a location to place your radio controlled clockwhere it will be at least six feet away from a TV, computer, air conditioneror other household electrical appliances. The optimal location is near awindow. Windows facing Colorado provide the best signal.Notes: Do not submerge clock in water. Extreme temperatures, vibration, and shock should be avoided toprevent damage to the clock.The WWVB time signal will easily penetrate masonry and wood framedbuildings. The WWVB signal will penetrate almost every residentialbuilding and most steel buildings if they have adequate windows. It isnot possible, however, for the WWVB signal to penetrate most indoorshopping malls and rooms in the center of large office buildings that donot have windows. In buildings that WWVB cannot penetrate you mayset the time using the manual time set button. When the clock receivesthe WWVB signal it will automatically set the hands to the exact time.La Crosse Technology atomic clocks do not receive or processradio controlled time signals from Germany’s DCF 77, Japan’s J GaAS, or England’s MSFs atomically regulated transmitters. LaCrosse Technology atomic clocks can be manually set and usedanywhere. Please Note: WWVB time will over ride a manual setting.For more information on the NIST and radio controlled time, seewww.boulder.nist.gov/timefreq/DAYLIGHT SAVING TIMEThe National Institute of Standards and Technology and WWVB encodea special DST “bit” in the WWVB transmission for DST. Your La CrosseTechnology clock will read this information and automatically advancethe hands one hour in the spring and eleven hours in the fall.WARRANTYLa Crosse Technology, Ltd provides a 1-year limited warranty on thisproduct against manufacturing defects in materials and workmanship.This limited warranty begins on the original date of purchase, is valid onlyon products purchased and used in North America and only to theoriginal purchaser of this product. To receive warranty service, thepurchaser must contact La Crosse Technology, Ltd for problemdetermination and service procedures. Warranty service can only beperformed by a La Crosse Technology, Ltd authorized service center.The original dated bill of sale must be presented upon request as proofof purchase to La Crosse Technology, Ltd or La Crosse Technology,Ltd’s authorized service center.La Crosse Technology, Ltd will repair or replace this product, at ouroption and at no charge as stipulated herein, with new or reconditionedparts or products if found to be defective during the limited warrantyperiod specified above. All replaced parts and products become theproperty of La Crosse Technology, Ltd and must be returned to LaCrosse Technology, Ltd. Replacement parts and products assume theremaining original warranty, or ninety (90) days, whichever is longer. LaCrosse Technology, Ltd will pay all expenses for labor and materials forall repairs covered by this warranty. If necessary repairs are not coveredby this warranty, or if a product is examined which is not in need orrepair, you will be charged for the repairs or examination. The ownermust pay any shipping charges incurred in getting your La CrosseTechnology, Ltd product to a La Crosse Technology, Ltd authorizedBATTERYCOMPARTMENTDST ON/OFF BUTTONSET BUTTONRESET BUTTONWAVE BUTTONTIME ZONE SWITCH

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