euclid The Time Traveler's Clock, Руководство пользователя

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Installation and Connections
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What’s Included
o The Time Traveler’s Clock
1. The TTC should be set up in a place where a window is available nearby for the
GPS antenna (SMA extension cables may be used if necessary).
o Timing Printer and Supplies
1. Rate Error is the average daily deviation from perfect timekeeping for a
chronometer. The Printer is an optional accessory which produces a hard copy
record of the native daily rate error of the Hamilton chronometer. The printer is
connected to the rear panel of the TTC by means of a push-on connector. No
other connection is required.
2. The printer uses a thermal paper tape. The user will need to put in a
replacement spool of tape when the tape runs out. Prior to running out, the
tape will have a red stripe along its length to warn the user.
3. Use of the printer is optional. It may be turned off by means of the power
button on the Printer front panel, or it may be disconnected from the TTC.
4. The rate error information recorded on the paper tape will be useful in the
eventuality of loss of electrical power, when it will become necessary to wind
the chronometer by hand and apply correction to its displayed time for
navigational purposes.
o Main Power Battery, Charger, and Connecting Cable
1. The main power supply consists of a battery-backed uninterruptible power
supply (UPS) that supplies 12V DC current to the Main 12V power connector on
the rear panel. The UPS will support several hours of normal operation during a
temporary power outage.
o Backup Battery Charger
1. An internal rechargeable backup battery provides continuous power to the
atomic clock module, even if the main power supply and battery back-up is lost.
This battery is powered from a secondary 12V DC power connection on the rear
panel. This secondary back-up power maintains the operation of the atomic
clock for several hours.
o GPS Antenna
1. A standard GPS antenna with SMA connector is provided that connects to a jack
on the rear panel. The antenna provided supports L1 GNSS systems (GPS,
Beidou, Glonass, and Galileo).
o Internal Lithium-Thionyl Chloride Reserve Supply
1. An internal last-reserve primary (non-rechargeable) battery consists of four D-
size lithium-thionyl chloride cells, which will provide continued operation for the
atomic clock and GPS receiver for up to a day after the rechargeable batteries
have been depleted, or if they need to be momentarily disconnected to move
the TTC. These cells should be replaced if the TTC rechargeable supplies have
ever been allowed to fully run down. The shelf life of these cells is in excess of
ten years.