1. Before connecting the power supply of the high and low temperature test box, please confirm the wire diameter of the external power supply: whether the capacity of the main switch meets the requirements of the equipment.
2. Please use a multimeter to confirm whether the power supply voltage is normal (the deviation of Â± 10% RH is allowed), the voltage between the phase lines is 380V, and the phase line and the neutral line are 220V. After no problem, turn off the main switch;
3. Connect the zero line (blue N line) of the machine to the zero line terminal in the distribution box, (the zero line must be connected, otherwise the equipment will not work, or burn electrical components);
4. Connect the ground wire of the machine to the ground wire terminal of the distribution box; explain the wiring steps of the circuit specification of the high and low temperature test box
5. Connect the three RST phase wires of the machine to the three terminals at the lower end of the main switch of the distribution box, and ensure that the screws are tightened;
Note: The high and low temperature test box is designed with a phase sequence protection function. If the phase sequence is connected incorrectly, the instrument will not be energized when it is turned on. The three phase wires at the lower end of the main switch of the distribution box must be arbitrarily exchanged. The phase sequence can be changed to meet the requirements of the test chamber.
This article was contributed by Linpin Co., Ltd.-Technical Department. If you need to know more about high-low temperature test chamber technical documents, please continue to pay attention to this site!
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