Installation and Usage Instructions for Water-cooled Resistors
2025-07-20
1. Installation location. The installation direction of most water-cooled resistors is specified. Incorrect installation can lead to a decline in the performance of the resistor, or make it unusable, or even damage the equipment. For SL type high-frequency high-power water-cooled resistors, they should be installed vertically on the installation surface. The cooling water should enter from the lower port and exit from the upper port.
2. Cooling water. The SL type high-frequency high-power oxide film water-cooled resistor has inlet and outlet water ports. During installation, please follow the instructions on the label to connect them correctly to avoid any errors.
3. Electrode Installation. The SL type high-frequency high-power oxide film water-cooled resistor has a large power and current. During connection, the cable and the lead-out terminal must ensure a reliable electrical connection to avoid excessive contact resistance. During operation, the electrodes heat up, causing the housing to deform due to heat, which may lead to the failure of the product.
4. Usage steps. When using, you should first release the air, that is, start by circulating the cooling water. Once the circulating water fills the interior of the resistor, then turn on the power. This is to prevent the resistor from being damaged due to dry burning.
5. Cooling water flow rate. During the operation of the SL type high-frequency high-power oxide film water-cooled resistor, most of the heat generated is carried away by the cooling water. Its power consumption is relatively less affected by the environment within the working temperature range, and is related to the inlet water temperature, water flow rate and flow volume. Calculation should be conducted before use. It is necessary to ensure that the outlet water temperature is below 70 degrees during normal operation.
6. Cut off the power supply first, then stop the cooling water. This is to prevent the resistor from burning out.
7. Reduce power. When the water temperature is high, the water flow is too low, or the ambient temperature exceeds the specified operating temperature, the power should be reduced for use.
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