1、關閉電源：在進行校線之前，需要先關閉控制柜的電源，并確保所有的電氣元件都已經停止工作，以免造成事故。

1. Turn off power: Before conducting calibration, it is necessary to turn off the power supply of the control cabinet and ensure that all electrical components have stopped working to avoid safety accidents.

2、確定測量對象：根據需要，選定需要測量的電氣元件和信號線路，例如電機、接觸器、繼電器等。

2. Determine the measurement object: Select the electrical components and signal circuits that need to be measured, such as motors, contactors, relays, etc., as needed.

3、連接萬用表：將萬用表的測量頭與需要測量的電氣元件和信號線路相連接，通常需要使用插頭或者夾子等連接器，確保連接牢固。

3. Connecting a multimeter: Connect the measuring head of the multimeter to the electrical components and signal lines that need to be measured, usually using connectors such as plugs or clips to ensure a secure connection.

4、測量電壓：打開電源，啟動控制柜，測量相應電氣元件和信號線路的電壓值，根據測量值進行調整。

4. Measure voltage: Turn on the power, start the control cabinet, measure the voltage values of the corresponding electrical components and signal lines, and adjust according to the measured values.

5、校正電阻值：如果需要校正電氣元件的電阻值，可以使用萬用表進行測量，并根據測量值進行調整。

5. Correction of resistance value: If it is necessary to correct the resistance value of electrical components, a multimeter can be used for measurement and adjustments can be made based on the measurement value.

6、完成校線：根據需要進行多次測量和調整，直到達到預期的校線效果為止。

6. Complete calibration: Conduct multiple measurements and adjustments as needed until the expected calibration effect is achieved.

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