Temperature Controllers

Industrial temperature controllers regulate temperature within a system, typically without requiring extensive operator involvement. These are usually mounted inside an instrument panel with controls that allow the user to raise or lower the set temperature, known as the setpoint.

At Baelz NA, we offer a comprehensive line of temperature controllers. Our controllers maintain precise temperature control in a range of industrial settings, with different customization options available depending on the needs of the specific application. Learn more about temperature controllers, how they function, and how Baelz NA can fulfill your temperature control needs with intelligent, reliable temperature controllers.

Why Are Temperature Controllers Important?

Why Are Temperature Controllers Important?

Temperature controllers play a vital role in industrial process heating applications. Utilizing a reliable, quality controller that works for a specific process system can enhance the overall success and efficiency of an operation. There are two different ways these can regulate temperature:

  • Open-Loop Control: The output of the control system is not fed back to the input or regularly monitored, meaning the system is not self-regulating and is more likely to malfunction over time.
  • Closed-Loop Control: The output is fed back to the input and monitored, allowing the control system to adjust to keep the output within the desired range. This type of self-regulating system is less susceptible to errors over time.

Certain applications require precise temperature control to ensure quality in consumer products and comply with safety standards. For instance, refrigeration systems used at food processing facilities rely on temperature controllers to maintain a safe and consistent temperature range, thus preventing contamination and food spoilage.

Not all production and manufacturing processes are equal. Accordingly, Baelz NA works with customers to make sure the solution they choose will meet the specific process temperature control demands of their application.

How Temperature Controllers Work

How Temperature Controllers Work

Industrial temperature controllers work similarly to the thermostats found in most homes. These controllers can accept one of the following temperature devices as input:

  • Resistance Temperature Detector (RTD)
  • Thermocouple
  • Pressure/Flow/Level Sensor

The temperature controller then provides the output to the control element, which uses heaters, compressors, or coolers to achieve the desired temperature. This is an ongoing process that occurs within temperature control systems, allowing users to maintain a constant temperature for products and facilities according to the setpoint.

Different Types of Temperature Controllers

Baelz NA offers three primary types of temperature controllers:

On-Off Controllers

On-off control requires the output of a control system to be either on or off. This type of temperature controller is effective in applications where a binary response is necessary, with the output being either fully activated or fully deactivated.

Proportional Controllers

In a feedback control system, proportional controllers can maintain a set point by adjusting the output based on the error between the desired control temperature and the actual response. This type of control is common in many applications. Along with easy integration, our proportional controllers also offer high responsiveness and accuracy.

In a proportional control system, the output correlates directly to the error. As the system reaches its set point, the output becomes smaller. This type of system can effectively reduce oscillations and overshoot errors that frequently occur with other types of control systems.

PID Controllers

PID control utilizes the following distinct components for controlling a system:

  • Proportional: Achieves an output proportional to the error
  • Integral: Eliminates steady-state errors
  • Derivative: Reduces the overshoot and provides damping

Users can adjust the parameters of each PID term to attain the desired response.

Applications of Temperature Controllers

Our temperature controllers are suitable for various industrial applications, including:

  • Chemical Processing: Controls the temperature to ensure product quality and workplace safety.
  • Furnaces and Ovens: Regulates the temperature to heat or cool materials to the desired setpoint.
  • HVAC Systems: Controls the air temperature within a space or building for optimal occupant comfort.
  • Medical Facilities: Regulates the temperature of medical devices, medical refrigerators, incubators, and more.
  • Refrigerators and Freezers: Regulates the internal temperature of a refrigeration system or freezer to maintain safe conditions for ongoing food storage.

Temperature Controllers

Compact microprocessor-based controllers for industrial applications. Intelligent control and automation ensure efficiency in energy generation and conversion.

Display 2 LED displays for setpoint and actual value
Mounting Panel front installation
Dimensions WxHxD 96 x 96 x 135 mm or 48 x 96 x 140 mm
Weight 0.6 kg or 0.5 kg
Housing Plastic

Download Datasheet6490/6590 Manual6490/6590 BY Manual

6490 Temperature Controllers
6590 Temperature Controllers

6496/6596 Temperature Controllers

Compact microprocessor-based controllers are compact and reliable controllers suitable for many industrial control applications, e.g.: in dryers, reactors, steam generators and superheated steam coolers (desuperheaters).

Display 2 LED displays for setpoint and actual value
Mounting Panel front installation
Dimensions WxHxD 96 x 96 x 135 mm or 48 x 96 x 140 mm
Weight 0.6 kg or 0.5 kg
Housing Plastic

Download Datasheet6496/6596 Manual

6496 Temperature Controllers
6596 Temperature Controllers

Benefits of Temperature Controllers

Temperature controllers from Baelz NA provide distinct advantages for diverse applications looking to achieve consistent temperature control. For example, our remote units do not require the use of other controllers, such as programmable logic controllers (PLCs), operator interface terminals, human machine interfaces (HMIs), and basic temperature controllers.

A single hybrid remote controller allows for complete temperature control, with the ability to monitor and manage two or more temperature loops. Advanced functions include ramp and soak control with self-tuning and algorithm capabilities including the following:

  • PI
  • P
  • PD
  • PID
  • Self-optimization

Our temperature controllers offer better performance capabilities than individual PLC controls and can meet even the strictest temperature control demands.

Temperature Controller FAQs

What is overshooting and hunting?

Overshooting is when a temperature rise exceeds the desired temperature after the control system starts. Hunting occurs when temperature oscillation gets close to the set point. Keeping these to a minimum will significantly improve temperature control.

What is a thermocouple and how does it work?

Thermocouple temperature sensors consist of two dissimilar metals that join at one end, with the reference junction located on the output terminal side. When this junction gets warmer or cooler, it generates a voltage that can be used to measure temperature.

Can manual operation be used with on-off temperature controllers?

Manual operation is not possible in on-off mode. However, manual operation is possible using PID control.

What happens if the temperature sensor terminals have an incorrect polarity connection?

If the polarity connection is reversed, the measured temperature will not display properly. For instance, the temperature controllers may indicate a falling temperature when it is actually rising.

What happens if the compensating lead wires or thermocouple lead wires are too long?

If compensating lead wires or thermocouple lead wires are too long, the displayed temperature will be higher than the real temperature and the lead wire resistance will increase. Some ways to resolve this issue include changing the wiring location to shorten lead wires and using thicker wires for the compensating leads.

Request a Quote on Temperature Controllers from Baelz NA

Baelz NA is the premier go-to source for actuators, ejectors, valves, and industrial temperature controllers. We have decades of industry experience and a proven reputation for providing our clients with attentive customer service and high-quality products that meet or exceed their expectations.

Our premium temperature controllers can conserve and generate energy, with intelligent automation and control functions for improved temperature control. We also offer customized solutions that are tailor-fit to meet our customers’ unique HVAC and industrial needs.

At Baelz NA, our expert team is focused on delivering exceptional quality, sustainability, and cost savings. Contact us today to learn more about our full line of offerings. You can also request a quote for specific information regarding your next project.

Looking for Technical Data and Resources?

Browse our collection of eBooks, brochures, and data sheets.

Data Sheets Resource Library

Get access now!

Please complete the form below to access the data sheets on this page. Click here to return home.