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Your location: home page ?>? Technical literature ?>? Product description >Seven common faults of primasci / Prima ultrasonic cleaner

title Seven common faults of primasci / Prima ultrasonic cleaner

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Provider: GOP instruments (Shanghai) Co., Ltd Release time: July 29, 2020 reading times: 30 times >>Enter the company's stand
? Ultrasonic cleaner In case of failure and failure to use normally, the following eight situations are generally common. For these eight situations, analysis and detection are carried out:
1. Transducer damage:
Analysis: it is possible that the temperature will gradually rise due to the long-time operation state, resulting in the colloid melting, the transducer falling off or the ceramic part of the transducer breaking. ?
Test: measure the insulation strength of the transducer with a megger. If the insulation strength is below 200m Ω, it can not be used, so a new transducer must be replaced. ?
The ceramic inside the transducer will also break due to long-term use, so that it can not work normally. ?
Second, insurance damage: if there is no power supply display and no action after starting the machine, the first thing to see is whether the fuse in the power supply base is damaged. ?
Analysis: it may be that the user's ground wire is mixed with the live wire or the zero line, and there is no grounding (the ground wire of the machine is connected with the machine shell), or it may be that the machine is short circuited, and the components are aging and short circuited, which leads to the insurance damage. ?
Detection: take out the insurance to see if there is any fracture, measure whether it is disconnected with a multimeter and replace it with a new device. ?
III. power tube damage:
Analysis: the power tube on the motherboard will be short circuited because the machine is used continuously for a long time or the cleaning liquid is too little for a long time. ?
Test: when the power tube is connected on the main board, use a multimeter to measure the resistance of the pins on both sides of the power tube. Under normal conditions, it should be about 22 Ω. After the power tube is removed (disconnected from the mainboard), it should be measured that there is no connection between each pin. ?
Damage of inductance and isolation transformer
Analysis: because the machine works for a long time, the inductance and transformer belong to heat dissipation elements, which may melt and burn out due to high temperature, resulting in short circuit. ?
Detection: the damage of inductor and transformer can be seen directly in most cases. Replace the new device. ?
Damaged rectifier diode
Analysis: the same as the condition of voltage stabilizing tube
Detection: also according to the characteristics of the diode (the bridge itself is composed of diodes)
Vi. damage of control panel (adjustable ultrasonic cleaner)
Analysis: long time continuous work, components aging, and sometimes infiltration of cleaning fluid. ?
Detection: when the machine is not working, disconnect the control board from the main board. If the main board is powered on, if the machine is working, it means that the control board is damaged and needs to be replaced. ?
7. The pressure stabilizing pipe is damaged
Analysis: the damage of the voltage regulator tube is generally caused by starting the power tube after the resistance value is small or short circuit, and it is rarely damaged. ?
Detection: according to the characteristics of diode, forward conduction, reverse up. The forward resistance is about 70 Ω and the reverse is ∞. If the value deviation is too large or the positive resistance is ∞, replace the regulator with a new one. ?

key word: Ultrasonic cleaner ?? ?? Ultrasonic water bath ?? ?? Imported ultrasonic cleaning ?? Imported ultrasonic cleaner ??

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