Viking CTG-2A Product Manual page 7

Second Hand Position
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Diagnostic #2
This diagnostic will determine the quality of the time signal. To enter Diagnostic #2 mode, push the Diagnostic Switch twice which
is indicated by the green LED flashing twice with a two (2) second break.
A. While in diagnostic modes, hour and minute hands continue to run normally.
B. The second hand will display the quality of the time signal. (The signal percentage is displayed on the dial of the clock. It
goes from 1 – 10, with 1 being the best signal strength and 10 being the least signal strength.
C. After three (3) minutes, the clock will resume normal operation.
Diagnostic #3
Note: This test takes approximately 10 minutes.
This diagnostic will test the mechanical portion and some of the electronic components of the clock. To enter Diagnostic #3 mode,
push the Diagnostic Switch three times which is indicated by the green LED flashing three (3) times with a two (2) second break.
If an error occurs, the clock will flash the red LED to signal the error code number (please see table below). While in Diagnostic
#3, the clock will perform the following steps:
A. Clock moves second hand to 00.
B. Clock moves second hand again to 00, to verify that the hands arrived after sixty (60) pulses.
C. Clock moves minute and hour hands to the next known position.
D. Clock moves minute and hour hands again to the same known position in order to verify that the hands reach the position
after 720 pulses.
E. Clock moves the hour and minute hands to 12:00:00.
F. Press the Transmit/Receive button twice. The second hand should move to the 4 until it has acquired the clock signal or until
10 minutes has elapsed.
Number of
Diagnosis of Error Code
Red Flashes
1,2 Clock detected problem with second hand. Check hands to see if they are hitting each other. Repeat test.
.
3,4,5 Clock detected problem with hour/minute hand. Check to see if they are hitting each other. Repeat test.
.
6 Call tech support.
Diagnostic #4
This diagnostic will test the battery level of the clock. To enter Diagnostic #4 mode, push the Diagnostic Switch four (4) times
which is indicated by the LED flashing four times every two seconds. The second hand will display the battery level by stopping
at one of the numbers on the clock's face. For example:
• If the second hand lands on 7, the battery level is 2.7V.
• If the second hand lands on 8, the battery level is 2.8V.
• If the second hand lands on 9, the battery level is 2.9V.
• If the second hand lands on 10, the battery level is 3V.
Note: Clock operation becomes unstable if battery output drops below 2.7V DC, so running a diagnostic at this voltage may
cause erratic behavior.
Time Since Clock Last Received a Communication Signal
Clock has received communication in the past hour
Clock has received communication between one and two hours ago
Clock has received communication between two and three hours ago
Clock has received communication between three and four hours ago
Clock has received communication between four and five hours ago
Clock has received communication between five and six hours ago
Clock has received communication between six and seven hours ago
Clock has received communication between seven and eight hours ago
Clock has received communication between eight and nine hours ago
Clock has received communication between nine and ten hours ago
Clock has received communication between ten and eleven hours ago
Clock has received communication between over eleven hours ago
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