Chaney Instrument 70541, 70543, 70544 User Manual

Radio Controlled Clock #105

To fully understand and appreciate your new radio controlled clock,

please read this document carefully.

CLOCK SET UP
STEP 1: SET MINUTE AND HOUR HANDS TO THE NEAREST HOUR:

Set the clock precisely to the nearest hour (If it is 2:45, set the clock to 3:00. If it is 3:20, set the clock to 3:00). The clock can be set in either direction, but the last 15
minutes of adjustment to the minute hand should be done in a clockwise direction. This will minimize gear play.

STEP 2: PRESS RED BUTTON TO IDENTIFY HAND POSITION:

Insert one “AA” Alkaline battery and wait a couple of seconds (about 3-5 seconds). Then quickly press the red button 4 to 5 times. This tells the microprocessor that
the minute hand is at the 12 and turns on the receiver.

NOTE: After the above setting process has been completed, the clock will begin to seek out the time signal broadcasted. Once the time signal has been received by

the clock the minute hand will advance (8 times speed) or slow (1/5 speed) down as necessary, until the clock sets itself to the correct time.

NOTE: After the setting process has been completed, the clock should start to beep. See finding a good location. The beeping will automatically stop in 20 to 30

seconds. Pressing the red button again, will activate the beeper for another 20 to 30 seconds.

FINDING A GOOD LOCATION

The clock movement has a very specialized AM radio receiver that is tuned to receive the coordinated universal time signal that is broadcast from WWVB (60KHz) in
Fort Collins Colorado. The WWVB signal is a relatively week AM signal and its reception is effected by weather conditions, electrical interference, solar conditions
and the position of the clocks antenna. Although the clock can work in most locations, the number of times that it corrects itself to the coordinated universal time signal
may depend on its location. This reception is especially important for the automatic adjustments for daylight savings time, which should occur between 2:05AM and
2:15 AM Eastern Time on the appropriate days, but may be delayed until a valid signal is received.

To aid in finding areas or walls with better reception, the movement has an audible beeper, which can be activated by pressing the red button after

the clock has been set, but before the clock has synchronized with the Atomic Time. Each time the red button is pressed (during this time); it will activate the beeper
for about 30 seconds. The beeper sound represents the actual signal being received. A good signal has one beep precisely every second and sounds similar to a heart
monitor with a slightly irregular heartbeat.

After pressing the seconds button, if you hear the following:

1) No Beeping or constant beeping – Means that there is either a very strong constant interference or no signal is being received.

2) Static or Erratic Sound – Means that there is interference that is equal to or greater than the WWVB signal.

3) On-Off pulse every second – Means a good signal has been found.

After you have activated the beeper, slowly move the unit around to various locations (move the unit as if you were moving in slow motion – this allows the electronics
time to respond to the changes in reception). Best locations are normally found when the face or the back of the clock is aimed directly toward Fort Collins,
Colorado and where metal objects or meal screens are not close to the clock or in a line between Fort Collins, Colorado and the clock. Many electronic
appliances such as computers, TV’s, florescent lights, microwaves, power lines, etc. can interfere with the clock’s reception. To minimize the effect of electronic
appliance interference, do not place the clock within 3 feet of any such device or other wiring.

Reception conditions will change with the weather conditions, seasons, time of day and solar activity. So if you do not find a good reception area the first time you try
to locate one, try again a little later. As a general rule, the best reception is at night and/or just before or after sunrise or sunset. In areas and times of extremely poor
reception, it may take a few days before a signal is received. It should also be noted that on rare occasions the WWVB transmitter is turned off for repair or
maintenance.

HANGING YOUR WALL CLOCK

Make sure to utilize the hanger molded into the backside of your clock. Use a securely anchored screw, nail or hook to support the weight of your clock. Make certain
that the screw/nail head is large enough to prevent the clock from slipping off in the event that it is jarred or bumped. When using outdoors, we recommend that you
hang your clock in a protected location.

TO BY-PASS DAYLIGHT SAVINGS TIME CHANGES

People living in areas of the country that do not observe the normal Daylight Savings Time changes, can by-pass (stop) the clock’s automatic Daylight Savings Time
adjustments by depressing the red button and holding it down while inserting the battery. After the battery is in, release the red button and set the clock as normal.

EASY SET UP – ALTERNATE PROCEDURE

1) Set the clock time to your local time by turning the gray set wheel to correctly position the clock minute and hour hands.

2) Insert one “AA” Alkaline battery and be sure NOT to press the red button during the next 15 minutes.

3) The clock is now ready to hang

Note: The clock may be adjusted or readjusted before or after inserting the battery. If using the “easy set up” procedure, it is important to understand that the clock
electronics will assume that the clock was set to the correct time or to the user’s “desired” time. The clock will use the radio signal to precisely maintain the time that
you set and to automatically adjust for daylight savings time. In other words, if the clock is set “on time” then it will always be “on time”. If the clock is set five
minutes fast, then it will always be five minutes fast (even after daylight savings time changes).

WHEN USING THIS CLOCK OUTDOORS

*Low temperatures can affect the battery performance and hinder the discharge of enough current to properly power the clock motor. This

may affect the timekeeping accuracy of your clock during the winter months when temperatures fall below freezing. If this happens, simply

reset your clock when temperatures warm back up and it will resume normal function.