La Crosse Technology WT-2100 User's Manual
Contents
1. 000 will appear below the USA map in the LCD to indicate that the time data from the signal source is being de coding for the time The digit on the left should randomly display the numbers 0 1 or 8 for a strong signal If 0 1 or 8 are not displayed then reposition the clock for a better signal When the time signal is received the WWVB tower becomes permanently lit and the time will be displayed General Information on WWVEB radio controlled time NIST Radio Station WWVB is located on the WWVB site near Ft Collins Colorado The WWVB time code is transmitted by the 60 kHz carrier and is broadcast continuously at a rate of 1 pulse per second using pulse width modulation The broadcast information includes the year time intervals Daylight Saving Time and leap year The accuracy of the transmitted WWVB signal is better than 1 part in 100 billion 1 x 100 and with day to day deviations being less than 5 parts in 1000 billion 5x 10 Using the Atomic Alarm Clock The clock has five easy to use funeter keys Front view Top view Hr ae 2 44 sat Alarm 1 Hour MODE key key ALM 2 Min key SET key Snooze key Using the keys SET key Used to enter the programming mode Used to select and confirm the various setting modes MODE key Used in setting mode to change select of all changeable selectable values and displays Used to toggle between the calendar seconds alarm times and temper2. 1 Following on from the Snooze setting mode the hour digits will start flashing in the manual time setting mode Use the MODE key to set the desired hours followed by pressing the SET key to move to the minutes setting 2 The minute digits will now start flashing Set the desired minutes by pressing the MODE key followed by pressing the SET key to move to the Year Setting mode Year setting mode 1 Inthe calendar section the year digits will start flashing default setting year 1999 Select the desired year from 1999 to 2019 by using the MODE key 2 Press the SET key to switch to the Month setting mode Month Setting 1 The month digits will start flashing default setting month is 1 Set the desired month by using the MODE key 2 Press the SET key to move to the Day setting mode Day Setting 1 The digits for the date will start flashing Default setting 1 Set the desired date by using the MODE key 2 Press the SET key to enter the Weekday setting mode Weekday Setting 1 The weekday will start flashing Default setting MON Set the desired weekday by using the MODE key 2 Press the SET key to enter the 12 24 hour setting mode 12 24 hour select mode 1 The 12 or 24 hour will start flashing Choose the desired time display mode by using the MODE key 2 Now press the SET key to enter
3. Atomic Alarm Clock Instruction Manual Introduction Congratulations on purchasing the Atomic Alarm Clock with WWVB Radio controlled time calendar 12 24 hours display time zone with US map indoor temperature and two alarms settings This innovative product is ideal for home or office use Please read this instruction manual to enjoy the full benefits of all the features Snooze button IY E lt I Battery Pa l 5 z compartment I I Function keys Features e WWYVB Radio controlled time with manual setting option 12 24 hour time display Time zone with USA map Pacific Time 8h Mountain Time 7h Central Time 6h Eastern Time 5h or GMT Automatic or manual ON OFF daylight saving time Indoor temperature reading C F user selectable 2 alarm times crescendo and normal sounding alarms snooze interval setting from 1 to 59 minutes Calendar display weekday month date or month date year LCD back light e o Setting up the Atomic Alarm Clock The clock uses 1 x AA LR6 battery Alkaline recommended To set please follow these easy steps Battery compartment Battery cover Slide the battery cover downwards as indicated by the triangle to reveal the battery compartment 2 Observing the correct polarisation insert the battery 3 Replace battery cover 4 After power up the alarm will sound once and all LCD segments will light up briefly 5 The clock will now start receiving the W
4. The received time will automatically override the manually set time and date When clock is attempting reception the tower icon on the LCD will start flashing if the WWVB time signal is present When reception is successful no more radio signal reception will take place during that day However if reception has been unsuccessful the WWVB tower icon will not appear and reception will be attempted the following hour up to 6 00 a m Care and Maintenance e Extreme temperatures vibration and shock should be avoided as these may cause damage to the unit and could give inaccurate readings e When cleaning the display and casing use a soft cloth only Do not use solvents or scouring agents as they may mark the LCD and casing e Do not submerge the unit in water e Immediately remove any low powered battery to avoid leakage and damage and replace only with a new battery of the recommended size e Do attempt to repair a unit Return it to its original point of purchase for repair by a qualified engineer Opening and tampering with the unit may invalidate its guarantee e Do not expose the unit to extreme and sudden temperature changes this may lead to rapid changes in readings reducing its accuracy Battery Change It is recommended to replace the battery in the Clock on an annual basis to ensure optimum running accuracy When replacing the battery cover ensure that the batteries do not spring free from the contacts as this may cause start
5. up problems Should the low battery icon show on the LCD the battery will need to be replaced Please participate in the preservation of the environment Return used batteries to an authorized depot Specifications Time source WWVB Time frequency 60 kHz Indoor temperature measuring range 21 8 F to 156 2 F with 0 1 F resolution 29 9 C to 69 C with 0 1 C resolution OFL displayed if outside this range Indoor temperature checking interval every 10 seconds Power source 1 x AA IEC LR6 1 5V Battery life cycle Approximately 12 months Alkaline batteries recommended Dimensions L x W x H 95 x 90 x 49mm Liability Disclaimer e The manufacturer and supplier cannot accept any responsibility for any incorrect readings and any consequences that occur should an inaccurate reading take place This product is not to be used for medical purposes or for public information The specifications of this product may change without prior notice This product is not a toy Keep out of children s reach No part of this manual may be reproduced without written consent of the manufacturer For warranty work technical support or information contact La Crosse Technology at La Crosse Technology Ltd 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 information on other products web www la
6. Use the MODE key to change the Time zone between Pacific Time 8h Mountain Time 7h Central Time 6h Eastern Time 5h or GMT e The time zone with USA map will only be displayed if time zone selection is between Pacific Time 8h Mountain Time 7h Central Time 6h and Eastern Time 5h and will remain visual after exiting the setting mode If GMT zero hours time source is selected the GMT icon will remain on the LCD after exiting this mode To exit press the SET key to enter the Daylight Saving Time setting mode Daylight Saving Time setting mode 1 Use the MODE key to switch the DST ON OFF Automatic switching of summer winter time will be enable if DST is ON 2 Now press the SET key to enter the Snooze setting mode Snooze setting mode default setting10 minutes 1 The Snooze display will start flashing Use the MODE key to select the desired snooze interval from 0 59 minutes Snooze function will disable if the minutes are set to 00 2 Now press the SET key to enter the Time setting mode Time setting mode In some cases the Alarm Clock may not be able to detect the WWVB signal which means the WWVB tower icon will not show at all on the LCD see Trouble Shooting because it is only visible when the signal is present To overcome this problem the time can be manually set for the time being see Manual Time Setting below by entering the setting mode
7. WVB time signal and the radio tower icon will start flashing indicating that time reception is being attempted 6 Time reception takes typically about 3 5 minutes with timeout being 10 minutes If after 10 minutes the WWVB time signal has still not been received the user should try one of the following two actions Reset the unit by removing the battery and proceed from step 2 above Should after 10 minutes and the time is still not received the clock will automatically attempt to receive the WWVEB time signal two hours later Manually set the time see Manual Time Setting below Note During the time of power up i e inserting the battery DO NOT press any of the keys as this will interrupt stop the WWVB time signal reception If keys are pressed during this stage then proceed from Setting up the Atomic Alarm above If there is no WWVB signal then the radio tower will not appear on the LCD When WWVB time reception is successful the received time will automatically override the manually set time and date Please see notes on Radio Controlled Time Reception and Manual Time Setting Radio controlled Time Reception WWYVB icon flashing if Vy Location test sequence for better ol B _ reception During reception the WWVB tower icon in the LCD will start flashing This indicates that the WWVEB time signal is present and the clock is trying to receive it At the same time three digits
8. ature reading ALM1 Hour key Used to enter the alarm setting mode for Alarm 1 Used to set Alarm 1 ON OFF crescendo alarm time is ON when 1 is displayed ALM2 Min key Used to enter alarm setting mode for Alarm 2 Used to set Alarm 2 ON OFF normal alarm sound time is ON when 2 is displayed Snooze key Used to activate the snooze during alarm Used to Display alarm time set for Alarm 1 and 2 Used to exit the setting modes Alarm setting mode Press ALM1 or ALM2 keys for 2 seconds to enter the ALM1 or ALM2 setting mode Set the alarm hour by pressing ALM1 HOUR key Set the alarm minutes by pressing AML2 MIN key Exit Alarm setting mode by pressing the Snooze key or automatic timeout approx 15 seconds Note to stop the alarm pressing any key except the Snooze key Setting Mode Each time the settings are changed except for alarm times the following setting modes are entered in sequence by using the SET key e Time zone setting from Pacific Time 8h Mountain Time 7h Central Time 6h Eastern Time 5h or GMT Daylight Saving Time ON OFF Snooze time setting default 10 minutes Manual Time Setting hour and minutes Calendar year month date weekday e 12 or 24 hours time display e F or C indoor temperature display Time zone setting mode e After pressing the SET key the time zone will now start flashing
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10. the Indoor temperature selection mode Temperature selection mode 1 The temperature reading will start flashing Using the MODE to select the desired temperature display for Celsius C or Fahrenheit 2 After selecting the temperature display mode press the SET key to exit the programming mode and switch back to normal display Trouble Shooting If the WWVB tower icon flashes but does not set to the WWVB time signal or the tower icon does not appear at all then please take note of the following e Recommended distance to any interfering sources like computer monitors or TV sets is a minimum of 1 5 2 meters e Within ferro concrete rooms basements superstructures the received signal is naturally weakened and in extreme cases the signal may not be received In this case place the unit close to a window so that it faces in the general direction of the Ft Collins Colorado transmitter e During daytime high levels of interference from other transmitting sources could prevent the WWYVB time signal reception During night time atmospheric disturbances are usually less severe and reception is possible in most cases Note Even if the time has been set manually the Alarm Clock will still try to receive the signal every hour between 12 00 a m and 6 00 a m local time If the time signal data is received it is converted into radio controlled time from atomic clock run by the NIST and then be displayed on the LCD
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