Recently, a laser processing enthusiast has bought the high-power and ultrafast S&A laser chiller CWUP-40. Having opened the package after its arrival, they unscrew the fixed brackets on the base to test whether the temperature stability of this chiller can reach ±0.1℃. The lad unscrews the water supply inlet cap and fills pure water to the range within the green area of the water level indicator. Open the electrical connecting box and connect the power cord, install the pipes to the water inlet and outlet port and connect them to a discarded coil. Put the coil in the water tank, place one temperature probe in the water tank, and paste the other to the connection between the chiller water outlet pipe and the coil water inlet port to detect the temperature difference between the cooling medium and chiller outlet water. Turn on the chiller and set the water temperature to 25℃. By changing the water temperature in the tank, the chiller temperature control ability can be tested. After pouring a large pot of boiling water into the tank, we can see the overall water temperature suddenly rises to about 30℃. The circulating water of the chiller cools the boiling water through the coil, since the water in the tank does not flow, the energy transfer is relatively slow. After a short period of effort by S&A CWUP-40, the water temperature in the tank finally stabilizes at 25.7℃. Only 0.1℃ difference from 25.6℃ of the coil inlet.Then the lad adds some ice cubes to the tank, the water temperature suddenly drops, and the chiller begins to control the temperature. Finally, the water temperature in the tank is controlled at 25.1℃, coil inlet water temperature maintains at 25.3℃. Under the influence of complex ambient temperature, this industrial chiller still shows its high-precision temperature control.
Precise Temperature Control for Laser Systems and Industrial Applications Since 2002
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