How to distinguish the authenticity of the temperature shock test chamber compressor
The temperature shock test chamber and some large laboratories use German Copeland compressors for low temperature refrigeration. Some customers tend to prefer low-end manufacturers in order to save money or budgetary shortfalls. Those manufacturers may also claim that they use German Copeland compressors. Today, Xiaobian will teach you to identify whether the compressor you used to buy the temperature impact test chamber is genuine licensed or refurbished. 1. Most of the refurbished machines are now sprayed. However, the original compressor surface paint is smooth and black. The spray is a bit dark. Therefore, it is not difficult for a professional to distinguish one or two from the paint. 2. The regular high-low pressure nozzles of Copeland compressors are all copper-plated. However, there is also a high imitation machine. If you buy a temperature impact test chamber, you can carefully observe the nozzle of the compressor. From the technical point of view, the smooth appearance can also be discerned. 3. Identify from the terminal block, no matter how revamped his technology, this is the best way to identify. The terminal block can not be changed, the terminal block is old and new, and the grounding screw {grounding screw, the fully enclosed Copeland ZB/ZR series are all green. This kind of screw is very difficult to buy on the market. 4. Someone asked if the movement can't be seen, but the frozen oil and taste can be discerned. You can observe the clarity of the frozen oil. Moreover, there is nitrogen pressure in the original turbine, which is not the kind of gas that can be sucked in. It is also impossible to renovate the machine. Battery operated electric toothbrush Battery Operated Electric Toothbrush,Travel Toothbrush,Bristle Toothbrush,Battery Toothbrush GUANGZHOU WANYUAN INDUSTRIAL CO.,LTD. , https://www.wanyuanfuture.com