Power supply of the instrument

Generally divided into three types: transformer power supply, switching power supply, and battery power supply. Switching power supply has the advantage of wide input voltage range of 70-250V. The disadvantage is poor anti-interference ability, especially in places with high harmonics, such as steel mills, where the instrument power supply is easily damaged. Transformer Advantages: anti-harmonic and anti-interference. Disadvantages: the input voltage level is single. When ordering, it should be stated that the voltage is generally divided into three types: transformer power supply, switching power supply, and battery power supply. The advantage of switching power supply is the wide input voltage range of 70-250V. The disadvantage is poor anti-interference ability, especially in places with high harmonics, such as steel mills, where the instrument power supply is easily damaged. Transformer Advantages: Anti-harmonics Anti-interference Disadvantages: The input voltage level is single, and the voltage level must be stated when ordering. DC power supply is not available.