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Laboratory ultrasonic cleaning machine is a common number of common faults

Date: 2022-10-18Number: 299

Ultrasonic cleaning machine is a common cleaning equipment in the current laboratory, it is convenient to use, cleaning completely, can be used for a variety of products and equipment, especially for some small irregular products which are not easy to be cleaned artificially, the advantages of ultrasonic cleaning machine are very obvious.

Ultrasonic cleaning machine often pay attention to equipment maintenance, or quite durable. But sometimes there will be equipment failure, can not work properly, because many laboratories are using a large ultrasonic cleaning machine, not easy to move, repair, return is very troublesome, if it is a small common fault, can be self-repair, or in the manufacturer under the guidance of maintenance staff to repair. For you to sum up the ultrasonic cleaning machine more common some common faults, and its troubleshooting, for your reference:

Ultrasonic cleaning machine

1, plug in the power supply, ultrasonic cleaning machine power lamp is not on

Cause a: A fuse blew

Check whether the ground wire is mixed with fire wire or zero wire, causing the equipment not to have a proper grounding device; or whether the equipment is short-circuited, electronic components caused by aging short-circuiting and other reasons led to fuse burn-out. Replace the new fuse after mastering the fault phenomenon.

Reason B: Power Switch Common Fault, replace the new switch.

2,The indicator light of the ultrasonic cleaner is on, but there is no ultrasonic output

Reason A. Abnormal Transducer;

Inquiry transducer and ultrasonic power board connection plug is not loose;

The Ultrasonic transducer are highly susceptible to moisture. Check the plug connected to the transducer regularly with Megohm meter, check the insulation resistance value between the positive and negative electrodes of the transducer, if the insulationresistance performance is less than 30 Megohm, it is likely that the transducer is damp. At this point, the transducer as a whole (not including the plastic shell) into the oven set at 100 ° C, drying for three hours, or with a hair dryer completely dry.

If the transducer is not damp, but the transducer is damaged, must replace the new transducer.

Reason B: the transducer oscillator burned out;

After the transducer vibrator degumming, because the vibrator and vibration surface connection is not good, after a long time is very easy to burn out the vibrator. Check whether the vibrator is short-circuit with a multimeter. If the vibrator is burned out, you must contact the manufacturer for maintenance.

Cause C: MANOSTAT damage;

The manostat is usually not destroyed, but it is likely to be in the power tube resistance value is small or short circuit, boot resulting in manostat damage. The resistance in the positive direction is about 70Ω, and the resistance in the reverse direction is ∞ . If the numerical error is too large or the positive resistance value is ∞ , said the regulator damaged, to replace the regulator.

Cause d: inductance, isolation transformer burn out:

Because the long-term work of ultrasonic cleaning machine, inductors, transformers belong to the heat dissipation components, its own temperature may be too high and melt, damage, resulting in a short circuit. If the inductor and isolation transformer is found to have burn-out traces, replace the new electronic components.

CAUSE E: damage to control panel (for adjustable ultrasonic cleaning machine) ;

Due to long-term work, or infiltration of cleaning fluid, leading to the aging of electronic components. Disconnect the control board from the motherboard if the equipment is not running. Power the motherboard, such as equipment work, also means that the control board damaged, to be replaced.

There is no ultrasonic output, but the cooling fan can turn

Cause a: damaged power tube or fuse.

Power tube on the motherboard because of long-term uninterrupted use of equipment or too little cleaning liquid, resulting in power tube short-circuit failure. When the power tube is connected on the motherboard, the resistance of the pins on both sides of the power tube should be measured with a multimeter. If the power tube is damaged, the components must be replaced in time.

4. Equipment tripping as soon as it's on:

Check the generator power line is not a short-circuit fault, generator rectifier bridge is not what the problem, check with a multimeter generator rectifier bridge four feet is not a short-circuit fault, if a short-circuit fault, replace the bridge rectifier.

5. The power of the device can not be adjusted

To check if there is any problem with the silicon control, use the multimeter to turn on the volume to see if there is a short circuit fault in the three legs of the silicon control. The most important thing is to see if the two thickest legs of the silicon control are turned on. If the silicon control can be turned on, then replace the silicon control, it can be solved once and for all.

6, equipment cleaning effect is not ideal

Potential Reasons A: ultrasound frequency coordination is not good;

Potential reason b: the tank body cleaning liquid level is not reasonable;

Potential cause c: unreasonable use of cleaning fluid.

Potential Reason D: The temperature of the liquid in the tank is too high;

Solution: in order to achieve the best cleaning effect, the ultrasonic cleaning machine must be set the correct temperature, cleaning time, select the appropriate cleaning fluid. Different materials, size of the items when cleaning temperature, length of time, cleaning agents are not the same, the actual use of instructions, or consult manufacturers after-sales staff.