CRUISING ELECTRONICS E-Meter, Руководство пользователя

Страница: 35 / 56

35
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, Your Meter 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 Your Meter 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
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 0.5 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 Your Meter 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 op-
tion may not be retrofitted to Your Meter in the field.