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Temperature Controllers

These Controllers receive sensor signals and control heaters or other devices to maintain a preset temperature. They can also be used for humidity, pressure, and flowrate control. OMRON also provides temperature and humidity sensors.

Overview Features
Principles Classifications
Engineering Data Further Information

Related Contents

Primary Contents



Temperature Control Configuration Example

The following example describes the basic configuration for temperature control.

Temperature_Control_Configuration_Example_fig

Temperature Controller

A Temperature Controller receives electrical signals input from the Temperature Sensor, compares the electrical signal input to the set point, and outputs adjustment signals to the Controller.

Controller

A Controller is used to heat or cool furnaces and tanks using devices such as a solenoid that cuts off electric current to a heater or a fuel valve that shuts off the fuel supply.

Temperature Sensor

The Temperature Sensor consists of an element protected by a pipe. Locate the element, which converts temperatures into electrical signals, in places where temperature control is required.

Temperature Control

The set point is input to operate the Temperature Controller. The time required for stable temperature control varies with the controlled object.Attempting to shorten the response time will usually result in overshooting or hunting the temperature. The response time must not be shortened to reduce overshooting or hunting the temperature.There are applications that require prompt, stable control in the waveform shown in (1) despite overshooting. There are other applications that require the suppression of overshooting in the waveform shown in (3) despite the long time required to stabilize the temperature. In other words, the type of temperature control varies with the application and purpose. The waveform shown in (2) is usually considered to be a proper one for standard applications.

1. The temperature stabilizes after overshooting several times.

The_temperature_stabilizes_after

2. Proper response

Proper_response_graph

3. The response is slow in reaching the set point.

The_response_is_slow_in_reaching_the_set_point_graph

Recommended Products

E5CN-H

A New High-performance Controller: High Resolution, High Speed, and High Input Accuracy. Logic Operations and Preventive Maintenance Function.

E5CB

Ideal for heater control, these Temperature Controllers offer the highest control performance at surprisingly low cost! Easy to Read with One of the Largest Character Displays Anywhere.

E5CC, E5CC-U

48 x 48 mm. Large White PV Display That's Easier to Read. Easy to Use, from Model Selection to Setup and Operation. A Complete Range of I/O Capacities, Functions, and Performance. Handles More Applications.