Motorized potentiometers with 4-to-20-milliamp input control

Micronor in Newbury Park, Calif., is offering the MR267 current loop controller (CLC) that remotely controls a motorized potentiometer and/or rotary cam switch via 4-to-20-milliamp current loop, 0-to-2.5-volt input, or external potentiometer. The MR267 offers a simple and inexpensive solution for automating existing systems controlled by manually operated potentiometers, rheostats or rotary cam switches. Motorized potentiometers (a.k.a. motor pot) and rotary cam switches are for industrial automation and process control applications. They are simple to use and easy to set up. No computers are required or software to write. The user-specified potentiometers provide absolute positional feedback information or function as a variable resistor in an analog control or bridge circuit. The motor pot provides a smooth uniform ramp throughout its timing cycle. Rotary limit switches are programmed (via cams) to electrically control events (or provide status) at pre-stages. A few common applications include ramping up the field current of a DC motor or controlling the start-up of a generator. For more information contact Micronor online at www.micronor.com.