A digital temperature controller is an electronic device used to maintain the temperature of an item at a constant level. The microprocessor-based technology records electronic temperature levels through the use of a sensor and checks them against the desired set point. A Temperature Controller is a device that is used to control a heater or other equipment by comparing a sensor signal with a set point and performing calculations according to the deviation between those values.
A proportional controller decreases the average power supplied to the heater as the temperature approaches setpoint. This has the effect of slowing down the heater so that it will not overshoot the setpoint, but will approach the setpoint and maintain a stable temperature. There are three general kinds of temperature controllers that are used to monitor temperature during manufacturing processes: on-off, proportional, and PID controls.
Temperature is controlled by four factors: latitude, altitude, cloud cover and land-water heating differences. The Digital Thermistor Temperature Sensor Module uses an NTC thermistor to measure temperature and provides both digital and analog outputs. Digital thermometers contain a small computing mechanism and a resistor. A change in temperature causes the sensor to notice a change in resistance. The computer converts the difference in resistance into a difference in temperature and offers a digital readout in degrees.
