E-Mon D-Mon Run-Time Sensor

The split-core current transformer (CT) allows the unit to be installed without need of a contact or switch on the monitored equipment. When the CT is clamped around the conductor being monitored it senses the current flowing through the conductor. The contact is wired to the external input terminal of the meter or IDR. A current flow of 2 to 50 amps causes the run-time sensor to close its normally open internal contact (form A). When the contact closes, it can be set up to register in the meter or IDR as a software-created count of 300 pulses per minute. This is used to account for the run-time of the equipment (as a percentage) in 5 or 15 minute intervals.