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ATOMIC CLOCK:
OUTDOOR TEMPERATURE TRANSMITTER:
The atomic clock uses 2 x AA, 1.5V batteries. To install and replace the batteries, please follow the steps below:
The transmitter uses 2 x AA,1.5V batteries. To install and replace the batteries, please follow the steps below:
Alkaline batteries are recommended for use in both units. Avoid using rechargable batteries.
Alkaline batteries are recommended for use in both units. Avoid using rechargable batteries
NOTE: Do not set the clock until the outdoor temperature is displayed.
Note:
In the event of changing batteries of the unit ensure that the batteries do not spring free from the contacts. Always wait at least 10 minutes after removing the batteries before reinserting, otherwise start up and transmission problems may occur.
The atomic clock has four easy to use keys:
SET key | To enter into the set mode for the following functions: time zone, DST ON/OFF (daylight saving time), language, hour, minute, year, month, day, weekday, 12/24 hour, ºC or ºF temperature display |
+ key | To toggle between the second, temperature or weekday display To change any values in manual set mode |
ALM key | To enter into the alarm set mode To set the alarm ON/OFF |
SNZE key | To activate the snooze function during alarm To display the alarm time in normal mode display To exit the setting modes |
The atomic clock's LCD is divided into 2 sections and once the batteries are inserted, all the segments will light up briefly before displaying the information for time, date, indoor and outdoor temperatures.
Note:
If the atomic clock has already successfully received the WWVB time signal and displays the correct time and date, then the Manual settings can be skipped.
After completion of the above described procedures in "Setting up" the manual setting modes can be entered by pressing and holding the SET key for 3 seconds. The following settings can now be programmed:
After entering the manual setting mode as described above, the time zone can be set between the –1 to –12 hour or Greenwich Mean Time (GMT) range in LCD2. To do this:
Note:
The DST default is "ON", meaning that the WWVB will automatically change the time according to Daylight Saving Time in the spring and fall. For areas that do not recognize DST changes (Arizona and parts of Indiana) turn the DST "OFF".
The weekdays can be displayed in LCD2 with the pre-set languages: US English, French and Spanish.
In case the atomic clock is not able to detect the WWVB-signal (disturbances, transmitting distance, etc.), the time can be manually set. The clock will then work as a normal Quartz clock.
Note: In 12 hours mode the time will be displayed with an additional "PM" for the time from 12:00 noon until 11:59.
Note:
The unit will still try and receive the signal every day despite it being manually set. When it does receive the signal, it will change the manually set time into the received time. During reception attempts the WWVB tower icon will flash. If reception has been unsuccessful, then the WWVB tower icon will not appear but reception will still be attempted the following hour.
WWVB time reception takes place from 12:00 am through 6:00 am each day (attempts WWVB reception every full hour within this time frame). When the time signal is received for example at 1:00 am, the atomic clock will not attempt to receive the WWVB signal for the remaining hours until 6:00 am. Therefore, the next signal attempt will take place between 12:00 am and 6:00 am the next day. The other times WWVB reception takes place, are upon setup and after manual time set exiting mode. Reception is generally not possible during daylight hours due to the interference of the sun.
The year can be selected sequentially from 2000 to 2049 and will then start over again (default setting 2000). Only the last 2 digits of the year will be visible on LCD2.
Date Setting
Note: The date can only be set in conjunction with the selected month. For example, it is not possible to set the date 30 if the month of February is selected.
Press and release the SET key to enter the "Weekday Setting".
To enter into the alarm setting mode:
The alarm will be automatically ON when the alarm time is set. To deactivate the alarm (OFF), press and release once the ALM key in normal mode display. The alarm icon will disappear, the alarm is now off
The snooze can only be activated during alarm time for a snooze duration of 10 minutes by pressing the SNZ key on the back of the clock
The temperature is measured and transmitted to the atomic clock every 1 minute. The atomic clock will update the temperature display every 5 minutes.
The range of the outdoor temperature transmitter may be affected by the temperature. At cold temperatures the transmitting distance may be decreased. Please bear this in mind when positioning the transmitter. Also the batteries may be reduced in power during periods of extreme cold temperatures.
The atomic clock will receive the temperature data within 4 minutes. If the temperature data is not being received 4 minutes after setting up (the display shows "- - -"), then please check the following points:
Note:
When the 433 MHz signal is received correctly, do not re-open the battery cover of either the outdoor temperature transmitter or atomic clock, as the batteries may spring free from the contacts and force a false reset. Should this happen accidentally then reset all units (see Setting up above) otherwise transmission problems may occur.
The maximum transmission range is 82 feet (25 meters) from the outdoor temperature transmitter to the atomic clock (in open space). However, this depends on the surrounding environment and interference levels. If no reception is possible despite the observation of these factors, all system units have to be reset (see Setting up).
There are three possible display modes to view the day, seconds, and temperatures. The month&date/weekday/indoor temperature/outdoor temperature is the default.
To change the display:
The NIST radio station, WWVB, 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 atomic clock. However, due to the nature of the Earth's Ionosphere, reception is very limited during daylight hours. The atomic clock 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 continually measures every second of every day to an accuracy of ten billionths of a second a 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. This atomic clock regulates the WWVB transmitter.
Once the outdoor temperature is displayed on the atomic clock, the WWVB tower icon in the clock display will start flashing in the top center of the LCD. This indicates that the clock has detected a radio signal and is trying to receive it. When the time code is received, the WWVB tower becomes permanently lit and the time will be displayed.
If the tower icon flashes, but does not set the time or the WWVB tower does not appear at all, then please take note of the following:
Note:
In case the atomic clock is not able to detect the WWVB-signal (disturbances, transmitting distance, etc.), the time can be manually set (please refer to notes on Manual time setting)
The Moon Phases, and their corresponding dates appear in LCD 2. There are 12 visible Moon Phases that will show in the LCD 2:
MOON PHASES FOR WS-8117
Before permanently mounting ensure that the atomic clock is able to receive WWVB signals from the desired location. Also, extreme and sudden changes in temperature will decrease the accuracy of the atomic clock, and changes in elevation will result with inaccurate temperatures readings for the next 12 to 24 hours. These changes will require a 12 to 24 hour wait before obtaining reliable data.
To achieve a true temperature reading, avoid mounting where direct sunlight can reach the outdoor temperature transmitter. It is recommended to mount the outdoor temperature transmitter on a North-facing wall or in any well shaded area. The maximum transmitting range is 82 feet (25 meters) obstacles such as walls, concrete, and large metal objects can reduce the range.
Place both units in their desired location, and wait approximately 10 minutes before permanently mounting to ensure that there is proper reception. The outdoor temperature transmitter is not waterproof and should not be placed anywhere it will become submerged in water or be directly in the rain.
There are two possible ways to mount the atomic clock:
FOLDOUT TABLE STAND
The Foldout table stand legs are located on the backside, at the lower corners, and on both sides of the battery cover. The hinges are towards the edges of the atomic clock, and the ends (with no hinge) need to be folded out towards the edge. Once the Foldout table stands are extended, place the atomic clock in an appropriate location.
WALL MOUNTING
Note:
Always ensure that the atomic clock locks onto the screws before releasing.
The outdoor temperature transmitter can be mounted in two ways:
Problem: | The LCD is faint |
Solution: |
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Problem: | No reception of WWVB signal |
Solution: |
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Problem: | Hour is incorrect (minute and date are correct) |
Solution: |
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Problem: | "OFL" appears in the indoor temperature section of the LCD |
Solution: |
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Problem: | "--.-" appears in the outdoor temperature section of the LCD. |
Solution: |
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Problem: | "OFL" appears in the outdoor temperature section of the LCD. |
Solution: |
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Temperature measuring range
Indoor: +32ºF to +122ºF with 0.2ºF resolution
0ºC to +50ºC with 0.1ºC resolution
("OFL" displayed if outside this range)
Outdoor: -21.8ºF to +140ºF with 0.2ºF resolution
-29.9ºC to +59.9ºC with 0.1ºC resolution
("OFL" displayed if outside this range)
Temperature checking interval
Indoor: every 10 seconds
Outdoor: every 5 minutes
Transmission distance: maximum 82 feet (25 meters) in open field, depending upon surrounding structures, mounting location and possible interfering sources
Power source (Alkaline batteries recommended)
Atomic clock: 2 x AA, 1.5V batteries
Transmitter: 2 x AA, 1.5V batteries
Battery life: about 12 months
Dimensions (L x W x H)
Atomic clock: 11.41" x 0.98" x 7.48" / 290 x25 x190mm
Transmitter: 1.57" x 0.9" x 5.04" / 40 x 23 x 128 mm
For best performance, batteries should be replaced at least once a year to maintain the best running accuracy. Ensure that the batteries used are new and the correct size.
Please help in the preservation of the environment and return used batteries to an authorized depot.
Phone: 608.782.1610
Fax: 608.796.1020
e-mail
support@lacrossetechnology.com
(warranty work)
sales@lacrossetechnology.com
(information on other products)
Or visit us on the internet at www.lacrossetechnology.com
Here you can download full pdf version of manual, it may contain additional safety instructions, warranty information, FCC rules, etc.
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