Mandolyn Electronic Technology WS738 Weather Station Receiver User Manual WS738A3C DSN WS738A3

Mandolyn Electronic Technology Inc. Weather Station Receiver WS738A3C DSN WS738A3

Users Manual

DST SettingUser can manually select DST (daylight saving time) feature when DCF is failed to receive Scroll to Year mode using MODE Press ALARM manually to enable and disable DST When DST is set ON, the DST symbol will appear Date Setting: Scroll to date mode using MODE Press HOUR/+/MAX to set month Press MINUTE/-/MIN to set date Weekday is automatically determined from the year/month/day settingDATE, YEAR & ALARM SETTING1a2b3cdFebruary will have either 28 or 29 days depending on the year settingYear SettingScroll to YEAR mode using MODEPress + or - key to adjust yearefP.6b caedffNote:* It is not recommended unless DCF is failed to synchronize* It is recommended to change the year/month/day information accordingly213battery installationGETTING STARTEDremove battery cover2 AA size batteries (WS738)2 AA size batteries (WT440H) (included)Insert between terminals observing proper polarity then replace coversetting remote sensors11Press SET to startHouse code will flash for 10 seconds22*Use a different house code if your weather station detects othersignals from neighbouring sources* Factory default: house code = 01 and channel = 0133445Select house code (1-15) by pressing C/F key. Press SET to confirm.Channel will flash for 10 secondsSelect channel(1-4) by pressing C/F key. Press SET to confirm.Remote sensors for each receiver must be set to the same house code. SET C/F-AA 1.5V+-AA 1.5V +13b5b 3a 5aWS738Wireless Weather Station with weather forecastOWNERS MANUALCongratulations on your purchase of this weather station, WS738. Please take the time to read and understand this manual so you can begin to enjoy the convenience and features this product has to offer.The WS738 is a weather station device that has several weather related functions. The main features are:WT440Hremote sensorMain Display Unit:**************Remote Sensor WT440H:***** Auto synchronizing radio controlled clock (DCF-77)Perpertual CalendarLocal temperature and humidity displayReceives and monitors temperature and humidity from up to 4 remote sensors via RF technology of 433MHzMaximum/minimum temperature recordsTemperature and humidity trend indicatorTemperature history chartTemperature alarm (for local and one out channel)Weather forecast displayMoon phase symbolsSunrise/ Sunset time displayBacklightUser-selectable C or FBattery: 2 x AA sizeSplash proof design with LCDTemperature display in user-selectable C or FHumidity displayTransmission range: up to 40 metersBattery: 2 x AA sizeGETTING STARTED button placement176892345MINUTE/-/MIN: shows minimum temperature; adjusts clock, alarm, date & year and temperature alarm valuesSNOOZE/MODE: scrolls through Clock 1 & 2, Alarm 1 & 2, Date & Year, and Temperature Alarm(high & low) mode; snooze for alarmSET: enter into setting mode and confirm the values during setting.C/F: change value of channel and house code during setting. Select between C or F.Battery compartmentLCD displayALARM/(C/F): toggles between C and F, 12 and 24 hour format, Alarm 1 & 2 on and off; disables (resets) high & low temperature alarms; disable/enable backlightCHN: scrolls through remote channels (1 to 4); scrolls through local and remote channels (1 to 4) in (high & low) temperature alarm mode; set sunrise/sunset zone; activate learn processHOUR/+/MAX: shows maximum temperature; adjusts clock, alarm, date & year and temperature alarm values789SET C/F-AA 1.5V+-AA 1.5V +6Synchronization112234SETUPAutomatic Learn Function:Manual-Learn (Searching for Remote Signals):Learn function executes automatically and runs for approximately 3 minutes when batteries are first installed in the receiver. Press and hold CHN for 3 seconds to start If a new remote sensor is added or if signal is lost (outdoor display blinking), learn function must be executed again.Within these 3 minutes, receiver picks up the temperature & humidity signals from remote sensor and displays the readings.Beep sound indicates that learn function has started'Channel' symbol will flash and unit will beep as each remote sensor is detectedTemperature & humidity readings of remote sensor displays on the receiver. Auto/Manual Learn will not operate while the radio controlled clock is receiving DCF77 signals*Clock 1 Setting: Press and hold MODE for 3 seconds to enter the clock setting mode (the CLOCK 1 symbol appears and the time will flash) Press HOUR to set the hour and MINUTE to set the minute; Press ALARM/(C/F) during clock setting, to change between 12 and 24 hour display. This also will end clock setting. Press MODE or do not press any key for 1 minute to finish clock setting.Clock 2 Setting: Scroll to Clock 2 mode using MODE Press + or - key to change the hour (in one hour increments/decrements relative to Clock 1)CLOCK SETTING Radio Control Clockmanual clock setting1iiiiiiivvivThe Ws738 is designed to automatically synchronize its calendar clock once it is brought within range of 1500km of the Frankfurt DCF77 radio signal.When the WS738 is within this range, its radio-control mechanism will override all manual settings.2When receiving radio signal, the Radio Tower symbol starts to blink. A complete reception generally takes several minutes, depending on the strength of the radio signal.3When the reception is complete, the Radio Tower symbol will stop blinking and remain solid. 4For better reception, place the clock away from metal objects and electrical appliances (i.e. television, computer, monitor, etc.) to minimize interference. P.1P.5 P.7P.4P.8+-+-SET C/FAA 1.5VAA 1.5VWS738receiver12534922413iiiiivviiiOUT1RF WIRELESSWEATHERTRANSMITTEROUT1OUT1OUT1OUT1LOW BATTERY INDICATION: Receiver: Low battery indicator will display continuously when batteries need replacingRemote sensor: Low battery indicator will appear on sensor’s LCD along with a low battery indication next to the corresponding channel on the receiver’s LCDP.22vAlarm 1and Alarm 2 Setting Scroll to Alarm1 mode (Alarm2 mode) using MODE Press HOUR to set hour Press MINUTE to set minute Press ALARM to toggle alarm on and off When the alarm is set ON, the bell symbol will appearWhen Alarm Sounds or will flash Press SNOOZE to snooze the alarm for 8 minutes. After that the alarm will sound again. Press ANY other key will shut off the alarm. Without interruption, alarm will shut off automatically after one minute.DATE, YEAR & ALARM SETTING1122334513322 3145Enter into clock setting mode ( Press and hold MODE for 3 seconds to enter the clock setting mode )Identify which zone you are located at (see the zone map at last page)Set the Zone code with CHN keyDaytime duration will change according to selected zone code and date.Sunrise and Sunset times follows to date.Example:12345SUNRISE/ SUNSET TIME DISPLAYThis weather station has state-of-art feature of Sunrise/ Sunset time display. The Sunrise/ Sunset time will display corresponding to your selected location. Please follow the procedures as below:3513P.3OUT1
SPECIFICATIONSWeather Station Receiver WS738Battery Type: 2 X 1.5V AA batteriesOperation Temp: Temp. Range: -5°C to +50°C-9.9°C to +55°CMeasurement Accuracy: Max. +/- 1°C within measuring range of 0 to 40°CResolution: 0.1°CHumidity Range: 25% to 90% RHWeather Station Transmitter WT440HBattery Type: 2 X 1.5V AA batteriesTemp. Range: -30Operation Temp.: -20°C to +60°C°C to +70°CTemperature Resolution: 0.1°C for above -10°C / 1°C for below -10°CMeasurement Accuracy: Max. +/- 1°C within measuring range of 0 to 40°CHumidity Range: 25% to 90% RHTransmission Frequency: 433.92 MHzTransmission Range: 40 meters (in open area)BACKLIGHTiiii iiiii iiiiv ivPlace the clock away from metal objects or electricalappliances such as TVs, computers, monitors, etc.Wait for about 1-2 minute to ensure the remote sensor and receiver are in phase. Otherwise, re-synchronize receiver by holding CHNfor 3 seconds until a beep is heard.Ensure the remote sensor is out of direct sunlight, and away from sources of heat.- Repeat the learning procedures.- Temperature may be below -30C.- Batteries in remote sensor may need changing. - Move remote sensor closer to the receiver.- Make sure remote sensor is away from sources of electrical disturbance.Cannot receive radio control DCF-77 signals to update the clock.The temperature measurement of remote sensor and receiver doesnot match.Temperature reading of outdoor remote sensor seems to high.Receiver is no longer receiving remote sensor signals or display problem solutionTROUBLESHOOTINGP.9 P.10P.16P.12This Weather Station is equipped with Backlight function. Pressing any key will turn on the backlight function. To save energy, you can select to Turn Off the backlight by executing the following steps: Turn Off Backlight Steps 1. Use MODE key scrolling to Date display2. Press ALARM keyAfterwards, the backlight will not be activated even if pressing any key Reactivate Backlight Repeat the above same steps to reactivate the backlight function. Afterwards, pressing any key will turn on the backlightThis weather station is capable of detecting barometric pressure changes, and based on the data collected, can predict the weather for the next 12 to 24 hours. The effective range covers an area of 30 – 50km.Storm Alert* Storm symbol will flash to warn of thunderstorm.* It is activated when pressure falls/rises and temperature plunges.About Freeze Warning* Snow symbol will flash to warn of 'freezing'.* Activated when Channel 1's temperature is between -1.9 C and +2.9 C* Snow will appear solid if and when Channel 1's temperature falls below -1.9 C.Note:* Sun / Moon symbol display according to sunset/ sunrise time.* Initially, the weather will be cloudy* Remote sensor Channel 1 will be used for weather indication. weather forecast symbolsWEATHER DISPLAYRainingFreeze Warning Storm AlertSnowingSunny Cloudy<flashing snow>OR<flashing>REMARKS:* After setting up, reading for weather forecasts should be discarded for the next 12-24 hours. This will allow sufficient time for the Weather Station to operate at a constant altitude and therefore result in a more accurate forecast.* Common to weather forecasting, absolute accuracy cannot be guaranteed. The weather forecasting feature is estimated to have an accuracy level of about 75% due to the varying areas the Weather Station has been designed for use in.* If the Weather Station is moved to another location significantly higher or lower than its initial standing point (e.g from ground floor to 1st floor of a house), remove the batteries and reinsert them after about 30 seconds. By doing this, the Weather Station will not make mistake of new location being a possible change in air pressure. Again, discard the weather forecasts for the next 12-24 hours as this allow time for operation at a constant altitude.WEATHER DISPLAYPRESSURE HISTORICAL BARGRAPH The bar graph lets you see the pressure trend over a period of 12 hours in 3-hour intervals. Moon Phase DisplayMOON PHASEThe moon phase is automatically updated according to the year/month/day. New Moon1Young Crescent2First QuarterWaxing GibbousFull MoonWaning GibbousLast QuarterOld Crescent876543Check Remote Temperature & HumidityCheck Local Temperature & HumidityC or F Temperature DisplayMin and Max Temperature & HumidityA**BCDTEMPERATURE & HUMIDITY DISPLAYPress CHN to toggle between Channel 1, 2, 3 and 4. Temperature and humidity readings will alternate on the receiver.After insert batteries, local temperature & humidity will display in alternate pattern.Toggle between C and F by pressing C/F in either Clock1 or Clock2 mode.Press MIN in Clock1 mode to display minimum temperature and humidityPress MAX in Clock1 mode to displaymaximum temperature and humidityNote:Min/Max readings are automatically cleared daily at 00:00The trend indicator shows the trend of temperature & humiditydetermined by the particular sensor in the past half hour interval.Arrow IndicatorRising Steady FallingTrendTemperature & humidity trendDCABP.13 P.14 P.15Press ALARM key continuously to scroll and select the high temperature alarm, low temperature alarm or disable the alarm functionPress + or - key to set the temperature limit valuePress MODE to finish The default value 14C or existing preset will flasha*2b5c34when temperature alarm sounds Press any key to stop temperature alarm; or If no key is pressed, the temperature alarm will automatically stop itself after one minute. Once triggered, temperature alarm comes on as a distinctive sound, different to that of Alarm1 and Alarm2. It is to alert that the temperature has exceeded the preset temperature limit.Outdoor temperature alarm1 51*P.11Scroll to remote channel temperature alarm mode by using MODE Press + or - key to set the temperature limit valuePress CHANNEL to select one desired channel of transmitter The default value 14C or existing preset will flash125634*Press MODE to finish334152Press ALARM key continuously to scroll and select the high temperature alarm, low temperature alarm or disable the alarm function524334162Scroll to local temperature alarm mode by using MODE 1TEMPERATURE ALARMYou can set high temperature or low temperature alarms for one localand one for one remote channelLocal temperature alarm
INSTRUCTION TO THE USERThis equipment has been tested and found to comply with the limits for a class B digital device, pursuant topart 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmfulinterference in a residential installation. This equipment generates, uses and can radiate radio frequencyenergy and if not installed and used in accordance with the instructions, may cause harmful interference toradio communications. However, there is no guarantee that interference will not occur in a particularinstallation. If this equipment does cause harmful interference to radio or television reception, which canbe determined by turning the equipment off and on, the user is encouraged to try to correct the interferenceby one or more of the following measures:• Reorient or relocate the receiving antenna.• Increase the separation between the equipment and receiver.• Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.• Consult the dealer or an experienced radio/TV technician for help.In order to maintain compliance with FCC regulations, shielded cables must be used with this equipment.Operation with non-approved equipment or unshielded cables is likely to result in interference to radio andTV reception. The user is cautioned that changes and modifications made to the equipment without theapproval of manufacturer could void the user’s authority to operate this equipment.

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