The Essex Engineering
Model 2024 Electronic Alternator is a versatile, reliable system for use in
starting, stopping and sequencing pumps, blowers, or other equipment to be
cycled. For instance, as the level in a basin or other container changes, the
level sensing switches monitor these changes and transmit a signal to the
electronic alternator. The alternator, upon receiving the proper signal, will
either start or stop the pumps in proper sequence.
There are separate
turn-on and turn-off points for control, and for high level alarm. Isolated
output contacts are provided for pump operation and alarms. The standard unit
will operate from a 4 or 5 level point system, and has lock-in or non-lock-in
sequence for lag level which can be field modified.
High level alarm
point can be field set for lock-in, manual reset, or automatic reset. Relay K4
can follow K3 for DPDT switch operation, or be used as an audible device relay,
dropping out when Alarm Silence pushbutton is added.
alternator also has a six second time delay to prevent the lag pump from
starting simultaneously with the lead pump after a power failure, thus
protecting an emergency generator from high inrush starting current