INTRODUCTION
The model 091-141 LOAD MANAGER P is designed to disconnect loads when
the battery voltage drops below a certain threshold. In addition a "Shutdown
Timer" is provided so that the load is disconnected 1 to 2 hours after the engine
is shutdown. This provides the ideal control for the computer or radio in police
cars, rescue vehicles, command vehicles or any application where these devices
might be used with the engine not running. If the operator forgets to shut down
the computer or radio, the battery is protected, as the Load Manager P will turn
off the power before the battery is drained.
12VDC Operation:
The factory pre-set voltage for shutdown is 11.0 volts, but can be
potentiometer adjusted up to 12.85 volts. The factory pre-set shutdown
time is 1 hour (when engine is not running). This time can also be
potentiometer adjusted up to 2 hours.
24VDC Operation:
The factory pre-set voltage for shutdown is 22.0 volts, but can be
potentiometer adjusted from 21.25 to 24.75 volts. The factory pre-set
shutdown time is 1 hour (when engine is not running). This time can also
be potentiometer adjusted up to 2 hours.
Shutdown Timer:
Enabled (factory default) when diode CR4 is installed on Printed Circuit
Board Assembly (refer to Figure 3). Disabling the Shutdown Timer by
removing CR4 will allow load power supply regardless of engine
running/not running status. The load will, however, still be managed as a
function of vehicle battery voltage per voltage shutdown described above.
The Load Manager Model Number will be followed by "DIS" if the Shutdown
Timer is disabled at the factory per customer order.
