Control Company 1076 ATOMIC WALL CLOCK - Manual

SPECIFICATIONS
Integrated radio receiver for reception of
time signal
Temperature Range: 32 to 122°F
(–5 to 50°C)
OPERATION
The unit contains a pre-tuned internal radio receiver that
receives a 60 kHz frequency signal generated by the
U.S. Atomic Clock. The U.S. Atomic Clock is located in
Boulder, Colorado and is operated by NIST (National
Institute of Standards and Technology).
Upon installation of the batteries, the unit automatically
activates its receiver.
The unit may not receive a signal immediately. It
may take as long as 72 hours to receive a complete
signal from the Atomic Clock. The clock will attempt a
signal reception for 10 minutes every 3 hours until it
successfully receives the signal from the Atomic Clock.
While the unit is attempting to receive a complete signal
for the first time, the clock may be set manually (see the
“Manual Clock Setting” section). Best reception often
occurs between midnight and 4 am.
The successful reception of the Atomic Clock signal
is dependent upon the positioning and location of the
unit. Insufficient signal strength or external electrical
interference may prevent the unit from receiving a
complete signal. The main causes for poor reception are
heavily reinforced concrete and steel structures and/or
placement of the unit close to video or PC monitors.
There are certain areas of the Eastern United States
where urban interference or signals from the United
Kingdom’s Atomic Clock may distort or interfere with the
signal from the U.S. Atomic Clock.
Upon successful reception of the Atomic Clock signal, set
the Time Zone to the desired setting (see the “Setting the
Time Zone and DST Status” section).
SETTING THE TIME ZONE AND DST STATUS
1. Press and hold the SET/WAVE for 3 seconds, the
Daylight Saving (DST) status (On/OFF) and Time
Zone will flash.
2. Press the “+” button to toggle through the four (4)
user-selectable time zones:
PST = Pacific Standard Time
MST = Mountain Standard Time
CST = Central Standard Time
EST = Eastern Standard Time
DAYLIGHT SAVING TIME
Each time the “–” button is pressed, Daylight Saving Time
will be turned on/off.
With the desired Time Zone and DST setting selected,
press the SET/WAVE button five (5) times to confirm the
entry and exit from the setting mode.
SELECTING °F/°C AND TIME FORMAT
1. Press and hold the SET/WAVE for 3 seconds, the
Daylight Saving (DST) status (On/OFF) and Time
Zone will flash.
2. Press the SET/WAVE button four (4) times, the time
format (24Hr/12Hr) and temperature will flash on the
display.
3. Each press of the “–” button will change the
temperature display mode between °F and °C.
4. Each press of the “+” button will change the time
format mode between AM/PM (12Hr) and 24 hour
(24Hr).
5. With the desired temperature unit of measure and
time format selected, press the SET/WAVE button to
confirm the entry and exit the setting mode.
SIGNAL STRENGTH INDICATOR
Indicates completed signal reception and
synchronization with the Atomic Clock.
Flashing indicates that the unit is attempting to
receive the signal from the Atomic Clock. If this
condition continues for more than 72 hours, the
unit should be repositioned for better reception.
Not flashing and not appearing indicates no
signal has been received. If this condition
continues for more than 72 hours, the unit should
be repositioned for better reception.
Upon successful reception of the Atomic Clock signal,
the unit will perform an automatic update every night
at midnight and will make any time adjustments that
might be necessary. If this update is not successful, the
indicators will disappear and the unit will try to receive
the signal again every hour for up to 4 hours. If signal
reception is still unsuccessful, the clock will attempt a
signal reception for 10 minutes every 3 hours until it
successfully receives the signal from the atomic clock.
MANUAL CLOCK SETTING
1. Press and hold the SET/WAVE for 3 seconds, the
Daylight Saving (DST) status (On/OFF) and Time
Zone will flash.