7.6 Set Out of Lock
53
7.6
Set Out of Lock
Set the Out-of-Lock time to control how the clock generates an alarm when it loses synchronization
with the Global Positioning System. If set to OFF, the Out-of-Lock function will not give an alarm.
If set to Zero Delay, then it will alarm immediately with an unlocked indication. If set to a value in
minutes, then the 1094B will signal an alarm the configured number of minutes after an out-of-lock
condition occurs. This is different than when the Model 1094B first operates at startup. During
startup, the 1094B will immediately trigger an out-of-lock alarm since the clock is not locked to
the GPS and the time is not accurate. See Figure 7.7.
Figure 7.7: Out-of-Lock Time Setup
7.7
Set Backlight
The backlight function in the Model 1094B can be set to operate in three modes: Always ON,
Always OFF and Automatic Shutoff (AUTO). AUTO is the most recommended setting, which
causes the backlight to turn off automatically after period of 30 seconds of inactivity. See Figure 7.8.
NOTICE: The backlight has been specified with a 100,000 hour (11.4 year) life. To conserve backlight
operation, configure the backlight for AUTO mode for normal operation
.
Figure 7.8: Backlight Setup