Ambient Weather RC-1200WS Manuel de l'utilisateur - Page 4

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2
Resynchronization with Atomic Clock
3
Reset Button
4
AA Battery Compartment

7 Battery Installation and Initial Operation

1. Reference Figure 1. Enter the Time Zone and Daylight Savings Time (DST) as outlined in
Table 1.
#
Cities
1
Pacific Time
2
Mountain Time
3
Arizona Time
4
Central Time
5
Eastern Time
2. On the back of the housing, insert one AA battery, observing the correct polarity. The
correct polarity is indicated in the battery compartment.
3. The second hand will run and stop at the 12:00 o'clock position, followed by the minute hand
and hour hand aligning to the 12:00 o'clock position. This confirms the clock hands are
operating properly.
4. The clock attempts to synchronize with the atomic clock for 12 minutes. If it synchronizes,
the clock sets properly. If it does not receive the signal from the atomic clock (very likely
during the daytime), the clock will begin running from the 12:00 position until the time
synchronization is successful.
The clock will attempt synchronization every two hours (1:00, 3:00, 5:00, 7:00, 9:00, 11:00,
13:00, 15:00, 17:00, 19:00 and 21:00). During synchronization, the second hand will operate
properly.

8 Mechanical Deviation Adjustment

During normal operation, the second hand will resynchronize at 1:30, 9:30 and 17:30 for two minutes
to account for mechanical deviation. The resynchronization occurs for two minutes, and makes the
proper second hand adjustment.
During normal operation, the minute hand will resynchronize from 1:52 to 1:58. If the minute hand
deviates within two minutes, it will automatically adjust. If the minute deviates more than two minutes,
the clock hands will align to 12:00 and attempt resynchronization.

9 Setting the Time Manually

If reception is not available, the clock date and time can be set manually.
To set manually, press and hold the M. SET button (Figure 1) for three seconds, and the clock second
hand will stop and enter the manual mode.
Next, press and hold the M. SET button again until the time is two minutes ahead of the current time.
Version 1.0
©Copyright 2015, Ambient LLC. All Rights Reserved.
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7
Figure 1
Time
Hours from
Zone
GMT
P
-8
M
-7
M
-7
C
-6
E
-5
Table 1
Manual Clock Set
Time Zone (P=Pacific, M=Mountain,
C=Central, E=Eastern)
Daylight Savings Time (DST)
ON
ON
OFF
ON
ON
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