6 Handy Trip Points on the IRU Ultrasonic Sensor

A black & white diagram of an IRU sensor shows the trip distance and window at the first and second trip points.In addition to the analog 4-20mA output, our IRU series ultrasonic sensors can be purchased with 2 NPN trip points. Fundamentally these are switches built into the level sensor that can be used to drive a relay or contractor. Through the programming software, these NPN trip points can be configured in a variety of ways that can be used to control things like pumps and alarms.

The following settings are used to control how the NPN trip points work.