The working principle of environmental chamber

Introduction:
The temperature and humidity environmental chamber can simulate a variety of temperature and humidity natural environments, and is suitable for testing electronic devices, household appliances, food, trolleys, vulcanized rubber, plastic rubber, metal materials and other commodities. So how does the temperature and humidity environmental chamber carry out humidification?

Standard:
High and Low Temperature Humidity Environmental Chamber is according to IEC60068-2-1 (GB/T2423.1) and IEC60068-2-2 (GB/T2423.2), IEC60068-2-78, IEC60598-1, GB/T2423.17, GB/T5170.2, GB/T5170.5. The climate chamber is used to test the CFL/LED which meets IES LM-80-08, electricity products, electronic components, material and so on.

High and Low Temperature Humidity Chamber

Working principle of temperature and humidity environmental chamber:
The whole process of humidification of the temperature and humidity environmental chamber is to increase the working pressure of water vapor. The more initial way is to spray water on the environmental chamber wall to control the saturation pressure of the water surface according to the operating temperature. The water on the surface of the chamber wall produces a large surface. On this surface, add water vapor pressure to the temperature and humidity environmental chamber according to the method of diffusion to increase the air humidity in the environmental chamber, because the key to the control of the environmental humidity is the mercury electric contact type conductivity meter is used to carry out simple power switch quantity adjustment, and the adaptability of the operation for the temperature of the boiling water tank is weak, so the whole process of operation connection is longer, and the alternating cold and humidity can not be considered for the humidification quantity. More requirements are stipulated, and the most important, in the case of self-spraying on the wall of the chamber, it is inevitable that water drops on the sample will cause different levels of environmental pollution to the sample. In addition, there are also certain regulations for the drainage pipe in the temperature and humidity environmental chamber. This method was quickly replaced by steam humidification and shallow water zone humidification. Steam humidification is suitable for central air-conditioning facilities and ventilation duct humidification systems, high-precision humidification sites, etc.

Lisun Instruments Limited was found by LISUN GROUP in 2003. LISUN quality system has been strictly certified by ISO9001:2015. As a CIE Membership, LISUN products are designed based on CIE, IEC and other international or national standards. All products passed CE certificate and authenticated by the third party lab.

Our main products are Goniophotometer, Integrating Sphere, Spectroradiometer, Surge Generator, ESD Simulator, EMI Receiver, EMC Test Equipment, Electrical Safety Tester, Environmental Chamber, Temperature Chamber, Climate Chamber, Thermal Chamber, Salt Spray Test, Dust Test Chamber, Waterproof Test, RoHS Test (EDXRF), Glow Wire Test and Needle Flame Test.

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