5000/5100 Series Digital Analog Clocks Installation and Operation Manual
27
Chapter 2: ADC-5100 Series Analog Digital Clocks
When first powered up, the clock will start from 12:00:00. Or, if the
external timecode is present, the clock will automatically reset to the
correct time. This may take up to 15 minutes.
The battery is enabled when power is first applied. Henceforth, the
clock will continue to retain time information for the lifetime of the
battery, even if the power is disconnected.
Manual Setting
The ADC Series clocks may be manually set using the three
push-button switches located on the rear panel. These push-buttons,
labelled
MANUAL SET
,
CW
, and
CCW
may be used to reposition the
hands of the clock for any of the following reasons:
•
The clock will be used as a Stand Alone Clock, locked to its own
internal crystal or AC line frequency. In this case the hands must be
initially set to the correct time.
•
The clock will be used as a master timecode generating clock.
•
The clock hands must be offset for a different time zone.
•
The offset must be removed. (For example, an offset of hours,
minutes, or seconds may have been inadvertently applied if the rear
buttons were actuated without following the correct procedure. In
this case, the hands and the internal microprocessor must both be
set to the same time. The clock will then display the correct time
when timecode is applied).
•
MANUAL SET
This rear panel button
stops hands and
enters/exits Manual Set Mode. (LED is on continuously when
entering Manual Set Mode, LED flashes when exiting Manual Set
Mode.)
•
CW
This rear panel button moves hands one second clockwise
while in Manual Set Mode.
Advances time one hour if held for 10 seconds during normal
operation (non-Manual Set Mode), without timecode input.
•
CCW
This rear panel button moves hands 50 seconds
counter-clockwise while in Manual Set Mode.
Changes time by minus one hour if held for 10 seconds during
normal operation (non-Manual Set Mode), without timecode input.
•
CW
+
MANUAL SET
Pressed together, these buttons advance
second hand position for precise tracking during normal operation
(non-Manual Set Mode).
