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Low Battery Alarm
Units with serial numbers greater than 005000 allow access to an enhanced
Low Battery Alarm feature. To activate this feature, change Function F14
to ON. When F14 is ON, the Link 10 displays a visual alarm when the
monitored battery meets either of two conditions:
1) A settable rated compensated (Peukert) amp-hour depth of
discharge is exceeded or,
2) Voltage remains below a settable level for 15 seconds or longer.
When operating the Link 10 with the visual Low Battery Alarm function
ON, three additional software functions are active. Two of these functions,
F11 and F12, set the low amp-hours and low voltage levels which turn the
visual alarm ON. Function F10 is the Low Battery Alarm OFF (Recharge)
Set Point.
Visual Alarm Indication
There are two levels of visual alarm.
Level 1: The normal display alternates with a blank Bar Graph and
LOLO
LOLO
LO
appears in the numeric display.
Level 2: Once the Level 1 alarm display is acknowledged by the operator
by pressing either SET or SEL once, the Level 2 Alarm flashes the amp-
hours function light while dimming the presently displayed function light.
In the event amp hours are displayed, the amp-hours light will go off at
half-second intervals. Once the battery alarm feature is activated, a visual
alarm display (Level 1 or Level 2) will continue until amp hours are above
the Low Battery Alarm OFF (Recharge) Set Point (F10) and voltage is
above the Low Voltage Alarm Threshold F12 for at least 15 seconds.
Alarm Circuit
Special versions of the Link 10 close a circuit to ground when either Visual
Alarm level is active. This circuit may be used for audible alarms, generator
staring, and so forth. Because additional internal circuitry is included, this
option may not be retrofitted to the Link 10 in the field.