Constant temperature and humidity chamber is a test machine,which can test products in the specified temperature and humidity, see the product of high temperature, low temperature, and anti-humidity ability, and the constant temperature and humidity have heating, cooling, humidification, humidity Simultaneously. Today,we will talk about how to control the internal temperature and humidity.
Constant temperature and humidity chamber is through the solid state relay heat; through the compressor cooling cycle to achieve dynamic equilibrium cooling; so that the temperature inside the box constant.
Heating device is the key to the temperature rise in the constant temperature and humidity chamber; when the controller gets the temperature command will output voltage to the relay, about 3-12 volts DC added to the solid state relay; its AC end of the equivalent of wire Pass; contactor also pull together, the heater at both ends of the voltage to make it heat, through the cycle of the fan to bring the heat to the box, so that constant temperature and humidity heating, so that the temperature quickly reach value your set.
Compressor is the heart of the refrigeration system, it sucks low temperature and low pressure gas, through the expansion valve into high temperature and high pressure gas, condensed into liquid by the release of heat, through the fan to take away the heat, so the constant temperature and humidity below the hot air, For the pressure of liquid, followed by the evaporator into a low temperature and low pressure gas finally returned to the compressor; refrigerant in the evaporator to absorb heat to complete the gasification process and absorb heat, to achieve the purpose of cooling and complete the cooling process.
Constant temperature and humidity chamber humidification system and the heating system is roughly the same; it is the heater heating water into a steam process; complete the purpose of constant temperature and humidity humidification.
Constant temperature and humidity test chamber dehumidification system is also completed by the refrigeration system, the evaporator on the constant temperature and humidity inside the machine; relatively cold, constant temperature and humidity inside the high humidity gas meet cold objects condensed into liquid; so repeatedly the high humidity of the box Gas will be very little, to achieve the purpose of reducing humidity.
Climate Instrument has over 10 years of industry experience in designing and manufacturing environmental chambers and temperature controlled products.If you have any question about it,contact us,we will try our best to serve you.