How to use the thermostat terminals

Terminals in the refrigerator thermostat temperature sensor on the environment through automatic temperature sampling, real-time monitoring, control circuit starts when the ambient temperature is higher than the control settings, you can set the control back to the poor. If the temperature is still up, when the temperature rose to limit alarm set points, start limit alarm function. When the temperature control can not be effectively controlled in order to prevent destruction of the device can also be WISDOM RAC CABLE  stopped by tripping device functions continue to run. Mainly used in the power sector using a variety of low voltage switch cabinet, dry-type transformers, box-type substation temperatures and other related fields. Related information: temperature controller is based on the principle of pressure to push through and break contacts. It consists of a bellows, temperature of the (test tube), the eccentric wheel, a jog switch or the like to form a sealed system and a sensor signal power transfer system. Control methods are generally divided into two types; one is cooled by the temperature change is an object to be controlled, the use of the vapor pressure type temperature controller, and the other by the object to be cooled to temperature changes in control, the use of electronic temperature controller. Mechanical divided into: vapor pressure thermostat, liquid expansion thermostat, thermostat gas adsorption, metal expansion thermostat. Where the vapor pressure type thermostat is divided into: inflatable type, liquid-gas and liquid-filled hybrid type. Household air conditioners are in such a mechanical thermostat refrigerator thermostat mainly works
  Action role vapor pressure bellows in the spring, the spring will be controlled by the control panel knobs, capillary in the refrigerator freezer, indoor cycling return air temperature react. When it is set to a temperature rise when the temperature of the capillary and the bellows expands refrigerant gas temperature, and elongation of the bellows against the spring force of the switch contact connected to the operation of the compressor case, the cooling system until they When the set temperature is reduced, temperature of the gas contraction, contraction of the bellows, together with the spring action, the switch in the off position, cutting off the motor of the compressor circuit. Repeating this operation, so as to achieve the purpose of temperature control. Electronic temperature controller
Electronic temperature controller  WISDOM HDMI CABLE (resistance) to the resistor to measure the temperature of the method, the general platinum wire, copper, tungsten, and a semiconductor (thermistor) for the measuring resistor, the resistor has its advantages and indeed point. Most home air conditioning is a thermistor sensor. Thermistor temperature controller is based on the principle of a Wheatstone bridge made of a Wheatstone bridge. In BD plugged ends E, when the resistance bridge R1 × R4 = R2 × R3, the potential points A and C are equal, no current flows between the output terminals A and C, the thermal impedance of the resistor R1 increase with the size or decrease the ambient temperature changes, so that balance is destroyed, there is between the output current AC. Thus, when constituting the thermostat can easily be done by selecting the appropriate thermistor to changes in temperature and the temperature adjustment range.