•
Other Control Panel Indicators and Buttons
o
“Atomic” blinks green once per second, powered by the 1pps signal from the cesium
clock.
o
“GPS” blinks blue once per second, powered by the 1pps signal from the GPS receiver; it
should be in sync with the Atomic light (the blue Atomic light blinks quickly exactly as
the blue GPS light turns off).
o
“Silicon” blinks yellow once per second, powered by the Real Time Clock. Typically, the
RTC light is out of sync with the GPS and Atomic lights, because it operates completely
independently and has lower precision than GPS or Atomic.
•
Printer
o
Normal Operation
1.
The Printer can be connected to the rear panel, and its power button turned on
(it will be lit white when on).
2.
At midnight UTC the ServoSync function will be disabled (unless the “Rate
Atomic” button is turned on), allowing the chronometer to run at its natural
rate.
3.
For a period of 35 minutes, measurements are collected of the timing of the
“ticks” of the chronometer measured against the GPS/Atomic timing reference.
The errors are printed out, along with an average daily rate error on the Printer.
These data may be used to diagnose the operation of the chronometer and as a
correction for navigation using chronometer time and sextant according to
normal navigational procedures.
•
Metal Cube Case Operation and Alternate Configurations
o
The Cube Case may be opened by pressing the upper latch and lifting the lid from the
upper section of the case to view the displays and chronometer. The lid may be
removed entirely by lifting straight up at the back (the hinges will unplug from the
upper-case section).
o
The upper-case section may be opened by pressing the lower latch and lifting it up to
allow access to the controls or for manually winding the chronometer. The upper
section may be removed entirely by lifting straight up at the back, like the case lid. It is
not recommended to leave the upper case open, which would allow dust and debris to
enter the interior of the TTC.
o
There is a cooling fan on the rear panel which draws in air through a filter to keep the
interior clean and cool. The fan is very quiet and is always on as long as there is Main
Power.
Maintenance Operations
•
Warm Resetting the Electronics
o
If the displays are frozen or show corrupt data, they may be reset by turning off the
Main 12V DC Power (easily done by turning off the battery-backed 12V supply.
•
Cold Reset After Long-term Power Loss
o
Cold resetting the electronics should only occur if AC or DC power is lost for
approximately two days. In this case, the battery-backed 12V supply (Main 12V) will
Summary of Contents for The Time Traveler's Clock
Page 19: ...Figure 12 Cesium Chip Scale Atomic Clock Circuit Board...
Page 23: ...Figure 16 Time Traveler s Clock System Schematic Diagram...
Page 24: ...Figure 17 Hamilton 21 Chronometer Starting Instructions...
Page 25: ...TTC Installation and Operation Manual...
Page 34: ...Figure 21 Gimbal Locking...
