Process Instrumentation

Process Instrumentation Controls

SEMCOR works with leading manufacturers of industrial controls and related products such as Dwyer, McDaniel and Reading Technologies. Through these partnerships, we are able to offer a diverse selection of industrial control systems to clients throughout the Midwest. As the premier industrial controls distributor in our region, we are able to respond to customers’ needs and provide expert advice every step of the way.

Follow the links below for more information about the brands we represent, or contact our office directly for assistance.

Limit Switches


Limit switches play a simple but important role in process instrumentation. Once contact is made with them, they automatically prevent a material or liquid from advancing any further. Limit switches are typically controlled by an actuator and are often encased in plastic to prevent damage from caustic materials. Because of the diversity of products available, limit switches are an essential component of a number of different industrial control processes.

As an authorized distributor of industrial controls by Dwyer, Westlock and more, SEMCOR has many options available for anyone in need of limit switches or related products.

Digital, Analog and Test Gauges


Industrial gauges measure temperature, pressure and other factors with accuracy and high degrees of repeatability. Gauges can be digital or analog, and either permanently installed in a specific location, or used for testing purposes.

Dwyer Instruments has been a manufacturer of gauges for industrial processes since 1931. The company now controls the Love and Mercoid brands, too, making them one of most comprehensive gauge manufacturers on the market today. SEMCOR is proud to be a partner to all companies in the Dwyer family.

Transmitters and Transducers

Industrial transmitters/transducers convert pressure generated by a gas or a liquid into an electrical signal, allowing levels to be monitored remotely. This is a critical task in large industrial processes, where early intervention is essential to preventing downtime.

Various types of pressure transmitters are available, including instruments for measuring differential pressure and other sophisticated tools. Contact SEMCOR directly for more information about our current inventory of products by Dwyer and other leading manufacturers.

Industrial RTDs and Thermocouples


Resistance temperature detectors (RTDs) are sophisticated temperature gauges that provide accurate measurements with low drift across a wide operating range. Thermocouples are a similar technology that is generally less stable but is smaller, responds faster and is capable of operating in higher temperatures.

SEMCOR supplies both thermocouples and RTDs by SensorTec, Inc., one of the most sophisticated manufacturers on the market today. Contact us for help choosing the right tool for the job.

Industrial Controllers and Calibrators

In addition to the above products, we also supply PID single loop controllers, process calibrators, flow indicators and more. Whatever the industry and whatever the task, you can count on our team to deliver the industrial controls you need to get the job done right. Contact us to get started today.

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