WIDE-SCREEN WEATHER FORECAST RF CLOCK WITH THERMOMETER MODEL: JM828WF INSTRUCTION MANUAL INTRODUCTION (A) | SNOOZE Congratulations for purchase of the JM828WF Weather Forecast I RF Clock. The JM828WF 1s a multifunction Radio Frequency (RF) control- led clock. When brought within radio signals generated from Frankfurt, Germany (DCF77) the unit will automatically syn- chronize with the current time and date. The JM828WF can indicate weather forecasts and pressure change trends. Other features include a daily crescendo alarm with an eight- minute snooze function, and extra-large display. (x В MAIN FEATURES A) SNOOZE BUTTON Activates the snooze function B' RADIO RECEPTION SIGNAL Indicates the condition of radio reception (C) EXTRA - LARGE DISPLAY (m) m 1 =» gn C3 CI O MU Lu a Displays the time, date, alarm status, and temperature 'D) ALARM ОМ 1СОМ [ № ] Appears when the alarm 1s activated /E) ALARM ICON [ (6) ] Appears when the alarm time is displayed F! BATTERY LOW (BATT) INDICATOR Lights up when the batteries are running dry © UP [A] AND DOWN [ ¥ ] BUTTONS Increases or decreases the value of a setting ‘H) CLOCK BUTTON Toggles the calendar clock display modes or activates the calendar clock setting mode 1) ALARM BUTTON Displays the alarm time or sets the alarm status J) TREND INDICATOR Indicates the trend of pressure changes 'Ю WEATHER FORECAST Indicates the change of weather pattern .L) SENSOR For indoor temperature reading 'M; RESET BUTTON 'N BATTERY COMPARTMENT Accommodates four UM4 or AAA-size batteries ALARM Speaker alarm (O) TABLE STAND For mounting the unit on a flat horizontal surface со 'Q, WALL - MOUNT HOLE For mounting the unit on a wall Resets the unit by returning all settings to their default values BATTERY INFORMATION The unit requires four UM4 or AA A-size batteries for operation. How to insert batteries: 1. Press the door tab and click open the door. 2. Insert the batteries strictly according to the polarities shown therein. | \ == 3. Replace the door until it clicks in place. Replace the batteries when the battery low indicator lights up. ABOUT RADIO RECEPTION The JM828WF 15 designed so it can synchronize the clock once it is brought within range of the Frankfurt DCF77 radio signal. When the JM828WF 1s within range, its radio-control mechanism will override all manual settings. When the unit is receiving a radio signal, the Antenna Icon [ | ]willstart to blink. A complete reception generally takes between two to ten minutes, depending on the strength of the radio signal. After that the scanning only takes a few seconds. When reception is complete, the Antenna Icon [ | ] will stop blinking. The strength of the reception since the last scan will be indicated. I Г STRONG Г WEAK | NO RECEPTION N > = T= RECEIVING For better reception, place the clock away from metal objects and electrical appliances to minimize interference. To disable the auto-reception feature, hold down the [ A ] and [ W ] buttons simultaneously for two seconds. The Antenna Icon [ | } Will appear but it will not blink. The unit will NOT respond to radio signals. To enable the feature again, hold down the buttons again. The Antenna Icon [  signal will start blinking to initiate reception automatically. 2 Note: Interference from sources such as TV sets can affect the signal. If, after batteries have been inserted for ten minutes, the DCF-77 signal 1s not received, then set the time manually (see below, How To Set The Calendar Clock Manually). TIME DISPLAY MODES When the calendar 1s displayed, press CLOCK once to toggle between hour, minute, second mode or the hour, minute, day-of- the-week mode. When the alarm-time is displayed, pressing CLOCK once will display the calendar instead. Then use the button again to toggle the time modes. hour, minute, and day-of-the-week mode A CALENDAR AND ALARM TIME DISPLAY The calendar and the alarm-time share the same section of the display. The calendar 1s displayed in a day-month format. When the calendar 1s displayed, press ALARM once to change the display to the alarm-time. Press ALARM again to activate the alarm. The ALARM ON icon is displayed when the alarm is active. To display the calendar, press CLOCK once. calendar mode | age” = HOW TO SET THE CALENDAR CLOCK MANUALLY When the calendar is displayed, press CLOCK for two seconds. The month digits will start to blink. Enter the month using the [ A ] and [ Y ] buttons. Hold down either button to rapidly increase or decrease the value. Press CLOCK to confirm and proceed to set the day. Again, once the day 1s set press CLOCK to proceed to the language display. Days of the week can be indicated as abbreviations in three different languages, (E) for English, (D) for German, (I) for Italian. To choose a language use the | A | ог [ W ] button. Display| English |Display| German | Display| Italian Mo Monday Mo montag Lu Lunedi Tu Tuesday DI dienstag MA | Martedi WE ¡Wednesday MI mittwoch ME |Mercoledi TH Thursday Do [donnerstag GI Giovedi Fr Friday Fr freitag VE Venerdi SA Saturday SA samstag SA Sabato Su Sunday So sonntag Do ¡Domenica Press CLOCK to proceed to the hour and minute functions. TO SET AND ACTIVATE THE ALARM The CALENDAR mode and the ALARM mode share the same section of the display. | When in CALENDAR mode, press ALARM button to enter ALARM mode, the alarm time is displayed. To set the alarm-time, press and hold ALARM for two seconds, the alarm time will flash. Enter the value for the hour digits. To confirm, press ALARM and proceed to the minute digits. Again, press ALARM to confirm. Now, the alarm should be activated. To deactivate the alarm, press ALARM once. ALARM AND SNOOZE FUNCTION When the alarm function 1s active, the unit will alarm at the set time. Resulting from the crescendo function, the alarm initially starts gently and increases in intensity in three stages. Without inter- ruption, the alarm will activate for one minute. To stop the alarm, press any key. However, if the SNOOZE button is pressed, the SNOOZE function will be triggered. The alarm will stop for eight minutes before activates again. INDOOR TEMPERATURE The JMB28WF displays temperature in Centigrade (°C), and is capable of measuring temperatures within the -5°C and +50°C range. If the temperature goes above or below these levels, the display will show “-5°C” or “+50°C”. HOW TO READ THE PRESSURE TREND The JM828WF gives a pressure trend for the last hour. As illus- trated below, a rising trend (arrow) indicates improving weather. Deteriorating weather conditions are indicated with a falling trend (arrow). Arrow Г PRESSURE r PRESSURE —, r PRESSURE =— Indicator = Pressure | EER DE PL Trend | Rising Steady | Falling WEATHER FORECAST FUNCTION The JM828WF detects barometric pressure changes and displays the illustrated weather symbols that indicate weather forecasts for 12 to 24 hours. The radius of the forecast is approximately 30 - 50 km. Indicator \ displays on| -O- CZ iO the unit Forecast | Sunny [Slightly Cloudy| Clo Important: 1. The accuracy of weather forecasting, when only using pres- sure trends, 1s approximately 70 to 75 percent. 2. The weather forecast symbols may not reflect current weather condition. The symbols are forecasting the future. 3. A ‘SUNNY’ forecast covering the nighttime reflects fine clear weather. HOW TO RESET THE UNIT Press RESET to return all settings to the factory values, which are 1997 for year, 1-1 (1st of January) for date, 12:00 for time and 06:00 for the alarm, which will be deactivated. The button is required only when the unit is not operating in a favorable way, such as in the rare case of a malfunction. HOW TO WALL MOUNT OR TABLE STAND Flip the table stand open to place the unit on a steady, flat surface. To wall mount the device, use the recessed hole on the back. Wall-mount J Pe Z 2 ae 2 Table Stand MAINTENANCE When handled properly, this unit is engineered to give you years of satisfactory service. Here are a few product care instructions: 1. Do not immerse the unit in water. If the unit comes in contact with a liquid, dry it immediately with a soft lint-free cloth. Do not clean the unit with abrasive Or corrosive materials. Abrasive cleaning agents may scratch the plastic parts and corrode the electronic circuit. Do not subject the unit to excessive force, shock, dust, tem- perature, or humidity. Such treatment may result in malfunc- tion, a shorter electronic life span, damaged batteries, or distorted parts. Do not tamper with the unit’s internal components. Doing so will terminate the unit's warranty and may cause damage. The unit contains no user-serviceable parts. Only use new batteries as specified in this instruction manual. Do not mix new and old batteries as the old batteries may leak. Read this instruction manual thoroughly before operating the unit. SPECIFICATIONS Operating Temperature Clock Functions Radio Control Calendar Clock Time Alarm Duration Snooze Accuracy : -5°C to 50°C : Auto synchronize current time and date by Radio signal generated from Germany DCF77 : Day of week in English/German/ Italian, Date/Month : 24-hour format 1-minute crescendo : 8 minutes : +/- 0.5 second/day Temperature Measurement Indoor measurement : -5°C to 50°C General specification Battery Type LCD Dimension Unit Dimension Unit Weight : À piece of UM4 or “AAA” size 1.5V battery : viewing area - 156 x 107 mm : 247 x 214 x 36 mm (H x W x T) : Approx. 660 g (not include battery) further notice. this product. CAUTION — The content of this manual is subject to change without — Due to printing limitation, the displays shown in this manual may differ from the actual display. — The manufacturer and its suppliers held no responsi- bility to you or any other person for any damage expenses, lost profits, or any other claim arise by using — The contents of this manual may not be reproduced without the permission of the manufacturer.
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