Antifreeze operation of high and low temperature chambers in winter

The test principle of the high and low temperature chamber has the tendency to simulate and simulate the temperature change in the natural environment. It is mainly used for adaptability test of raw data such as batteries, electricians, electronics and electronic equipment in high temperature and ultra-low temperature integrated natural environment. In the process of use, the equipment is replaced with common faults in four seasons, and the common inspection in winter is freezing, resulting in that the temperature of the test chamber cannot be circulated.

In order to prevent such failures, we should do a good job in advance, starting from the following aspects:
1. Use high-purity refrigerant. If the refrigerant has too much water, it will cause ice blockage;
2. Regularly check whether the drying filter is brittle, and replace it immediately if it is aged, otherwise the drying filter will lose its drying and moisture absorption function and form freezing;
3. Check and maintain the water storage tank in the air humidifier. It should be replaced once a month to ensure that the water is clean. The humidifier water tray should be cleaned less once a month to ensure smooth water flow.

The high and low temperature chamber is processed and formed by CNC machine tool, with beautiful appearance, no reaction handle, simple operation, safe and reliable; Arc appearance spraying treatment, simple operation, high appearance texture, high and low temperature chamber inner liner adopts advanced stainless steel (SUS304) mirror panel, and outer liner adopts A3 steel plate spraying to increase appearance texture and cleanliness. Double-layer high-temperature and high-tension sealing strips shall be used between the door and the chamber to ensure the sealing of the test area.

Does the high and low temperature chamber filter and dryer need to be replaced regularly?
1. Deionized filter tube for humidified water. For the deionization of humidified water, the loss of efficiency after long-term use will lead to scaling of the steam boiler or spraying of calcium and magnesium plasma into the test chamber along with the steam, polluting the surface of the test piece.
2. Drying cylinder of dry air displacement device. This kind of drying cylinder is reduced by repeated moisture absorption through chemical reaction, and the effect of moisture absorption will be lost if it is used for a long time.

The drying filter in the high and low temperature chamber refrigeration pipeline system is used to absorb water and gas mixed in the refrigerant and filter solid particles. When water enters the refrigeration system, it will corrode the refrigeration components and pipelines, emulsify the lubricating oil, and cause the “ice jam” phenomenon of the refrigeration system in serious cases. The solid particles will increase the wear of the moving parts of the refrigeration system (such as compressor, solenoid valve), or block the throttling channel, so it should be replaced regularly. In use, once the shell of the drying filter feels cool, even condensation, frost, and cooling of the drying filter shell indicate that the drying filter is saturated or seriously blocked, and the refrigerant throttling causes a small amount of refrigerant in the drying filter to evaporate, which must be replaced in time.

It is troublesome to replace the drying filter in the high and low temperature chamber refrigeration system. During replacement, the pipeline channel before and after the drying filter must be closed, and the connecting channel between the cooling system and the drying filter must be cut off to prevent the loss of the cooling quality in the system. After the drying filter is replaced, the vacuum shall be locally pumped to check the static pressure of the working quality in the refrigeration system. If there is too much loss of refrigeration working quality, some refrigeration working quality should be properly supplemented.

Temperature Humidity Chamber | Thermal Chamber | Climate 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, automative cars, home appications and mobiles.

GDJS-015B Temperature Humidity Chamber | Thermal Chamber

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 Guns, 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.

Please feel free to contact us if you need any support.
Tech Dep: Service@Lisungroup.com, Cell/WhatsApp:+8615317907381
Sales Dep: Sales@Lisungroup.com, Cell/WhatsApp:+8618117273997