Photosynthesis is an important part of plant growth. In order to better control the growth of crops, professional measurement instruments such as photosynthesis meters have appeared in the development of modern agriculture. In most people's concepts, foreign photosynthesis measuring instruments are considered to be more advanced than domestic ones, with more accurate precision, and do not consider their own scope of needs when they are used. They prefer to use foreign prices even if they double their prices. This is unscientific. In our domestic photosynthesis tester, there are also functions, and the performance is quite good. For example, photosynthesis tester produced by Topp Yunnon is very popular with domestic users. Everyone here will be accustomed to ask why? Let's take a look at the six functional features of Topsun's photosynthesis tester:

1. Use notebook computers to communicate with the CO2 analyzer and the leaf chamber to receive real-time data collected by each sensor. The data sampling cycle is fast and the calculation is accurate. The photosynthetic (respiratory) rate, transpiration rate, and stomatal conductance of the plants can be determined.
2, the software interface is friendly, real-time curve display of various sensors, easy to operate.
3, AC and DC dual-use, long time to use. Special users can be equipped with solar panels to facilitate field charging.
4, the instrument function, the user can according to their own needs closed-circuit photosynthetic, closed-circuit breathing, open-circuit breathing and environmental factors contact collection records.
5, leaf chamber design is small, and equipped with a variety of leaf chamber accessories, the user can order according to their own needs.
6, easy to use. Small, lightweight and portable. The connection between the air circuit and the circuit is clear, and the operation method, measurement, and calculation result can be clearly displayed.

After reading the six functional features of the domestic photosynthesis tester, the user can feel it, whether to meet their own needs? If you look at the parameters and feel good, then you don't really need to import an instrument for photosynthesis. Here also reminded the majority of photosynthesis testers how to correctly and reasonably select product features, brands, and do not spend several times more money because of the pursuit of unnecessary features.

Heat Exchanger Cleaning

Gas-phase Ultrasonic Cleaning Machine

The principle of gas-phase cleaning machine is as follow. When the solvent is heated, the steam forms the gas phase zone. In this area, the oil on the surface of the workpiece is dissolved and washed by steam. When the steam condenses, the dirt along with the grease falls back into the tank to become the cleaning fluid. Then, the cleaning fluid is heated and gasified into steam to clean the workpiece. This continuous cycle ensures the workpiece is always surrounded by the steam of cleaning fluid which overcomes the problem of contaminated cleaning fluid in the past common cleaning process.

Trichloro ethylene, tetrachloro ethylene, dichloromethane, isopropyl alcohol have very good cleaning effect with high stability, long usage period when they are used as metal cleaning agent. In heat exchanger factories, these degreasing agents are widely applied in cleaning fins, bars, parting plates, tanks and other heat exchanger parts. After these heat exchanger parts with oil stain are soaked in the cleaning agent and cleaned by supersonic, they`ll be very clean which also ensure heat exchanger with good brazing quality.

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