Image credit: ABB Measurement Products | Marsh Bellofram Group | Time Mark Corporation
Level controllers monitor, regulate, and control liquid or solid levels in a process.
Understanding Level Controllers
Level controllers receive input from a level-sensing device and respond accordingly based on the device and user specifications. Level controllers may be used in conjunction with pump systems, in storage tanks or reservoirs, and other applications.
The following video displays a typical level controller application involving two liquid storage tanks.
Video credit: harishankar9696
For detailed information about controller specifications, including control type, inputs and outputs, and certifications, please refer to the Temperature Controllers Selection Guide.
Related Products & Services
Flow controllers monitor and maintain flow-rate variables, typically in process applications.
Humidity controllers monitor and maintain proper humidity levels in environmental test applications, food storage areas, and electronic equipment rooms.
pH and ORP controllers monitor and can control the pH (acidity or alkalinity) and/or the ORP (oxidation reduction potential) of liquids involved in a testing or process application.
Pressure controllers accept input from pressure sensors, transmitters, gauges, and other devices and subsequently control adjustment to the pressure to maintain or achieve the desired pressure level.
Temperature controllers accept inputs from temperature sensors or thermometers, and then output a control signal to keep the temperature at the desired level.
Universal Process Controllers
Universal process controllers constitute a broad area of control devices that may be employed in the monitoring and control of many different process variables, including temperature, pressure, flow and other values.
Web controllers maintain control functionality over processes with web or sheet rollers. Control functionality includes maintaining tension of the web, centering on the track, and material feed rates.