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Hanging the clock
The AT12RM Wall Clocks have a specially designed hanging bracket that prevents a simple
upward motion from removing it from the wall. Secure a mounting screw in the desired
location and slide the key hole at the bottom of the hanging track over the screw. Move the
clock right, down and slightly left to secure it correctly.
Normal Operation
In normal operation the clock listens for a synchronization signal 12 times per day (on even
hours at the 58
operation.
Verifying Reception of Last Signal
Press the A button to verify that the clock received the last transmission signal from the ATX
Series master. The LED on the front will flash Green to indicate that the last transmission
was received successfully. If the LED flashes Red, then the last transmission was not
received. This may indicate the Wall Clock is located outside the transmission area.
Start Reception
Press the B button to manually set the clock to "listen" mode. The green LED on the front of
the clock will flash every 2 seconds. When a signal is received from an ATX series master,
the LED will flash every second. The second hand will stop at 12:00 and the minute and hour
hands will rapidly advance to the correct time. (If no signal is received, then verify that your
ATX Series master is transmitting or move the clock to a different, closer location)
Manual Time Setting
Press the B button for 5 seconds until the second hand stops. Press the A button to advance
the minute hand one minute. Hold the A button to rapidly advance the minute and hour
hands. Press the B button when the hands reach the correct time. The clock will start
normal timekeeping operation.
Disclaimer
The information within this document has been carefully checked and is believed to be entirely reliable. However, no
responsibility is assumed for inaccuracies. Lathem Time Corp. reserves the right to make changes to any products herein to
improve reliability, function, or design.
AirTime, Lathem and the Lathem logo are registered trademarks of Lathem Time Corporation. Other product names mentioned
in this manual may be trademarks of their respective companies and are hereby acknowledged.
Warning: Changes or modifications to this product not expressly approved by the party responsible for compliance could void
the user's authority to operate this equipment.
Copyright © 2009 Lathem Time Corporation. All rights reserved. Information subject to change without notice.
Lathem and AirTime are registered trademarks of Lathem Time Corporation.
th
minute between 50
th
th
and 59
second). The LED will not flash during normal
Document No: USG0086
Revised: 8-19-2011
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