Characteristics, working principle and classification of temperature and humidity controller

Temperature and humidity controller is an instrument, the temperature and humidity sensor used is a good performance of imported products, using advanced single-chip microcomputer as the control core, can detect and control humidity and temperature at the same time, and can start the fan or heater to automatically adjust humidity and temperature. What is the principle of temperature and humidity controller? What are the classifications? Let's take a look at these two issues together

Working principle of temperature and humidity controller: temperature and humidity sensor is an instrument that can measure and control temperature and humidity signals at the same time and realize LCD digital display. It can also enable the instrument to automatically start the fan or heater according to the site situation, set and display the upper and lower limits of temperature and humidity through the button, and automatically adjust the actual temperature and humidity of the measured environment. The temperature and humidity controller can adapt to a more complex and changeable environment, is very intelligent, and has a strong protective effect on the equipment. Through the output indication of two normally open contacts, it is more suitable for complex and changeable field conditions, so that the instrument is intelligent and achieves the purpose of effectively protecting the equipment.

The temperature and humidity controller is mainly composed of three parts: sensor, controller and heater, and its working principle is as follows: the sensor detects the temperature and humidity information in the box and transmits it to the controller for analysis and processing. The relay contacts in the controller are closed, and when the temperature and humidity in the box reach or exceed the preset value, the heater is energized and starts to work to heat or blow air to the box. After some time, the relay contacts in the controller are disconnected, and when the temperature or humidity in the box is far from the set value, heating or blowing stops.

Temperature and humidity controllers can be divided into two categories: First, ordinary temperature and humidity controllers, using imported polymer temperature and humidity sensors, combined with stable analog circuits and switching power supply technology. Second, the intelligent temperature and humidity controller, through the digital tube to display the temperature and humidity value, with heater, sensor fault indication and transmission function. The instrument integrates measurement, display, control and communication, with high precision and wide measurement range, and is a temperature and humidity measurement and control instrument suitable for various industries and fields.

Characteristics and application scope of temperature and humidity controller: temperature and humidity controller is composed of high-reliability computer chip, high-precision temperature and humidity sensor and intelligent software control technology. The controller has strong anti-interference ability, flexible control mode, and can set the upper and lower limits of temperature and humidity, control difference and control mode according to different temperature and humidity control needs, so it can meet most of the temperature and humidity monitoring needs. It can be controlled in industry, agriculture, grain depots.

Temperature and humidity controllers can be used in some special places, can detect temperature and humidity, and can automatically adjust the control, so as to protect the equipment. The role of this instrument cannot be ignored, it is used in some equipment. Although it is a small instrument, it can make a huge difference.