1, to avoid violent vibration, corrosive gas and liquid to prevent the inflow to prevent by irrigation and dry and ventilated place, not covered with textile obstruct ventilation.
2, please use the three plug (with grounding) outlet grounding screw on the machine to a properly grounded, air circuit breaker will be a test pencil test case charged phenomenon, which is due to induction caused by stray capacitance, is a normal phenomenon, through the ground wire eliminated. If the cabinet is serious leakage, measure the insulation resistance is less than 2MΩ, the insulating layer may be damp or line and chassis have been shorted, should identify the reasons for troubleshooting before use.
3, 0.5 ~ 1.5KVA small power regulator uses fuse for over current short circuit protection, 2 ~ 40KVA regulator role DZ47 circuit breaker for overcurrent, short circuit protection, such as a fuse blows mcb circuit breaker or circuit breaker trips frequently, should check whether the electricity is too big.
4, when the output voltage exceeds the protection value (factory-phase voltage protection value is adjusted to 250V ± 5V), power supply automatic protection, cut off the power supply output voltage, and over-voltage lights, the user should check the mains voltage or power off immediately regulators, Electric energy meter power regulator occurs (with input no output), you should check the mains voltage is higher than 28OV. If less than 280V should check the regulator is faulty. Subject to pinpoint the cause before use.
5, if the regulator output voltage deviation 220V more, please adjust the control board potentiometer to the output voltage is normal (not up to the regulator input voltage range can not be adjusted).
6, when the mains voltage is often in the regulator input voltage limit (<150V) or upper (> 260V), the limit micro switch often affected by touch, prone to out of control. Then regulator or regulator can not only increase (or only lower), you should first check the micro switch is damaged.
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