High/low level alarm controller
First Claim
Patent Images
1. A high/low level alarm controller, comprising:
- a selector switch;
a relay; and
an alarm control circuit,wherein said selector switch is connected to said relay and said alarm control circuit, said alarm control circuit being configured to provide an electrical output responsive to monitoring of a fuel level, wherein said selector switch and said relay form an isolation control unit, and said isolation control unit is configured to isolate instrumentation and prevent unwanted voltages during fueling.
0 Assignments
0 Petitions
Accused Products
Abstract
A high/low level alarm controller having ability to interface with level sensing equipment and instrumentation in a manner that isolates the controller from downstream components is presented. The controller accepts power, logic and transduced level inputs; output from the controller is available to drive relays, solenoid valves, motors, pumps, alarm horns, etc. The high/low level alarm controller is ideal for existing/retrofit applications and new installations alike.
51 Citations
11 Claims
-
1. A high/low level alarm controller, comprising:
-
a selector switch; a relay; and an alarm control circuit, wherein said selector switch is connected to said relay and said alarm control circuit, said alarm control circuit being configured to provide an electrical output responsive to monitoring of a fuel level, wherein said selector switch and said relay form an isolation control unit, and said isolation control unit is configured to isolate instrumentation and prevent unwanted voltages during fueling. - View Dependent Claims (2, 3, 4, 5)
-
-
6. An apparatus for a marine craft, comprising:
-
an alarm control circuit; a level sending unit; a power supply; a gauge coupled to said power supply; and an isolation control unit; wherein the isolation control unit is connected to the power supply, gauge, alarm control circuit and level sending unit; and
said isolation control unit is configured to isolate at least one of the level sending unit and the gauge. - View Dependent Claims (7, 8, 9, 10, 11)
-
Specification