SkyScan Atomic Clock Model 31704 Manual

SkyScan Atomic Clock

With Calendar and Thermometer

 

Model 31704
Instruction Manual

 

The SkyScan Atomic Clock

 

With the SkyScan Atomic Clock, you have the most accurate timepiece within the continent. It can receive the time signal transmitted by the National Institute of Standards and Technology (NIST), which is regulated by 3 atomic clocks and deviates less than 1 second within 3,000 years.

 

The NIST broadcasts the time signal (WWVB, 60kHz) continuously from Fort Collins, Colorado. This signal can be received anywhere in the continental USA that long wave (AM) radio reception is possible with a portable radio. It is expected that the signal can reach a distance of 2,000 miles from the transmitter. Therefore, your clock will receive the signal within the broadcast range anywhere an AM signal can be received. Generally the signal cannot be picked up in massive metal and concrete structures unless near a window. In addition, some environmental effects (see next page) may affect the transmitting distance.

 

For more information, please study the WWVB WEB page of NIST at: http://www.boulder.nist.gov/timefreq/

 

 

Environmental Reception Effects:

 

The Sky Scan Atomic Clock obtains the accurate time with wireless technology. Same as all wireless devices, the receiving ability may be affected by, but not limited to, the following circumstances:

 

• Long transmitting distance.
  
• Nearby mountains and valleys.
  
• Among tall buildings.
  
• Near railway, high voltage cable, etc.
  
• Near freeway, airport, etc.
  
• Near construction site.
  
• Inside concrete buildings.
  
• Near electrical appliances.
  
• Near computers and televisions.
  
• Bad weather locally or electrical storms between you and Colorado.
  
• Inside moving vehicles.
  
• Nearby metallic structures.
  

 

Location Precautions

This clock receives a radio wave much like a TV or radio. Be sure to locate it near a window or some other locations where reception is good. Avoid the following locations, which can interfere with proper reception.

 

 

Synchronization signal reception can be received in Continental USA only. In other areas, you can still use this clock by making time settings manually.

 

Specifications

 

• Receives 60KHz WWVB signal transmitted by NIST in Fort Collins, Colorado.
  
• Automatic time and date adjustment after signal reception.
  
• Calendar with day-of-the-week display from Jan. l, 1998 to December 31, 2097.
  
• .Hour, minute and second display.
  
• 12 or 24-hour format.
  
• Crystal oscillator frequency: 32.768kHz.
  
• Time accuracy (atomic clock): better than 1 second in 3,000 years.
  
• Time accuracy (free run): average within: +/- 30 seconds per month.
  
• Indoor temperature range: 32°F-122°F.
  
• Batteries: 2 "AA"size alkaline batteries.
  
• Battery life: approximately 1 year.
  
• Press ℃/℉ button to choose your desired temperature reading.
  

 

 

 

 

Getting Started

 

Installing the Batteries .

• Lift the tab on the battery door located at the back of the clock. Put in the "AA" alkaline batteries with proper polarity (+) and (-) as indicated. Now manually set the clock to the correct time. Be sure the proper time zone for your location is selected on the back of the clock.
  

 

Setting the Time Zone .

• Slide "TIME ZONE" switch to display the time in the desired time zone. Always slide "DST" switch to ON position unless the clock is used in an area without Daylight Saving Time (i.e. Arizona and part of Indiana).
  

 

To Set the Time .

• Slide switch to “CLOCK SET.” Press HR or MIN button to set, your desired time. Return the switch to the lock position.
  

**Special attention to usage in Arizona and Indiana**
Arizona and part of Indiana do not have Daylight Saving Time (DST). Please adjust the "DST" switch to the OFF position if the clock is used in an area without Daylight Saving Time.

 

To Set Calendar

• Slide switch to “CALENDAR.” Press MONTH, DATE or YEAR buttons to set your desired calendar settings. Return the switch to the lock position. Note: Incorrect calendar settings will be automatically adjusted, i.e. February 30 will be adjusted to February 1, April 31 will be adjusted to April l.
  

 

To Set Alarm .

• Slide switch to “ALM SET.” The alarm time will keep flashing on the display.
  
• Press “HR” or “MIN” button to set your desired alarm time. Return the switch to the lock position.
  
• Slide alarm switch to “ALM ON.” The ((●)) sign will appear on the display. The alarm function is activated.
  
• Slide alarm switch to SNOOZE to active the Snooze Alarm. The Zz sign will appear on the display to indicate activation of the SNOOZE function. Once the alarm starts to ring, you can activate the snooze by pressing the SNOOZE/LIGHT button. The alarm will stop for 5 minutes and then ring again. Slide alarm switch to ALM OFF to completely stop the alarm.
  

Alarm Duration: 1 minute.

 

 

First reception after power-up .

• The SkyScan Atomic clock will start to search for the WWVB signal for 10 minutes after installing the batteries.
  
• In an optimal condition, the correct time can be displayed within 3 to 5 minutes.
  
• The tower and wave icon will keep scrolling after you start the clock. This is normal since this indicates the radio control circuitry is working.
  
• The "Wave OK" icon indicates successful reception.
  
• The signal is at its maximum strength from 12:00 am to 3:00 am and with minimal radio interference. In most cases, the clock will not receive and set until this time.
  

•  

Within the first three hours

• If the clock fails to receive the signal in the first reception after power-up, it will repeat a 10-minute reception sequence every 30 minutes.
  
• This operation stops once the time signal is received.
  

After the first three hours

• If no signal can be received within the first 3 hours, the clock will repeat the reception mode every 3 hours.
  
• This operation will not stop until the signal is received.
  

 

Automatic time update

• The clock will automatically update its time every day at 00:55 (l2:55am) Eastern Standard Time (EST).
  
• If the automatic time update fails, the clock will repeat the update every three hours until it is successful receiving the signal.
  

 

Manual time update

• Reception can be started anytime by pressing the "WAVE" button at the bottom of the case.
  

Note: Frequent use of this feature may affect battery life.

 

Caution:
This clock is set to show the Pacific Standard Time (PST) with Daylight Saving Time as a factory setting. Please adjust these switches on the back of the clock for the location where the clock is used. In some unusual occasions, the clock may be affected by noise and respond abnormally. In such conditions, press the "RESET" button to resume normal operation.

 

Important:
It is recommended to put the Atomic Clock near a window facing Fort Collins, Colorado. Please move the clock to another location if difficulty in signal reception is encountered.

 

12HR/24HR Internationa Time Display .

• Press the 12HR/24HR button to choose the desired display format.
  
• "AM" or "PM" will be displayed only in the 12HR format.
  

•  

Re.-set the unit (Trouble.shooting)

• Press the "Reset" button when the clock is displaying irrelevant time even when the "Wave OK" shows on LCD. This may happen when the external noise is severe enough to interfere with the time signal.
  

 

Scrolling Tower and Wave OK Display

• If the tower and wave icon is scrolling, your clock is actively searching for the WWVB signal. This will be automatic at 12:55am everyday.
  
• If the tower and wave icon is static, your clock is not actively searching for the signal. T
  
• The Wave OK box will be displayed which indicates successful reception during the last search for the WWVB signal. The Wave OK box may not be displayed daily due to interference between your location and Fort Collins.
  

This is normal.

 

Care of your Clock

• Avoid exposing your clock to extreme temperatures, water or severe shock.
  
• Avoid contact with any corrosive materials such as perfume, alcohol or cleaning agents.
  
• Do not subject the clock to excessive force, shock, dust, temperature or humidity. Any of these conditions may shorten the life of the clock.
  
• Do not tamper with any of the internal components of this clock. This will invalidate the warranty and may cause damage.
  
• Use only fresh alkaline batteries. Mixing old and new batteries may cause battery leakage.
  

 

FOR CUSTOMER INQUIRIES:
TEL: (757) 460-2483
EMAIL: shelley@eic.hrcoxmail.com This e-mail address is being protected from spam bots, you need JavaScript enabled to view it

 

Customer Service Dept.
Equity Industries Corp.
5721 Bayside Road
Virginia Beach, VA 23455 U.S.A.

 

Model 31704
Made in China