1. Appearance and basic performance inspection
2. Appearance inspection: The appearance of the inspected regulated power supply should be intact, without mechanical damage that affects normal operation.
3. Basic performance check: turn on the uv smart power supply to make the tested regulated power supply in working condition, check the display (adjust the output voltage knob to check whether the adjustment is stable)
4. Indication calibration: connect the instrument, disconnect the load resistance connection, and adjust the tested DC under no-load conditions to read the digital multimeter data stably. Connect the load resistance to adjust the output electrical data of the tested DC stabilized power supply
5. The items to be calibrated and the selection or gear position of the standard device: DC voltage, DC current
6. Selection of calibration points: select evenly according to the range of the regulated power supply to be tested.
7. Reading method and data processing: Reading processing is performed according to the resolution of the tested power supply. Tolerance judgment: judge according to the accuracy level of the tested power supply.
8. Connecting wire: Connect the standard device according to the calibrated item.
