Daily maintenance: First, turn off the ultrasonic generator and disconnect the power supply. Remove the ultrasonic probe and rinse the probe tip and horn with a suitable solvent to remove sample residue; do not use hard tools to scrape the probe surface, as this may damage the wear-resistant coating. Inspect the probe for scratches, corrosion, or pitting, and check the cable insulation for damage. Clean the sample cup and fixture, discard any residual sample, and wash and dry them. Check the cooling water circuit for leaks and ensure the water level is normal; monitor the ultrasonic homogenizer during operation for abnormal noise or overheating. Maintain usage records, noting the sample type, operating duration, and equipment status.

Weekly maintenance: Check the cooling water; replace it promptly if it becomes cloudy—using deionized water is preferred to prevent scaling and clogging in the water circuit.

Tighten the threaded connection between the probe and the horn; disassemble, clean the threads, apply a small amount of specialized lubricant, and retighten. Inspect the transducer for abnormal heating, check signal cable connectors (cleaning off dust and ensuring secure connections), and inspect the cooling fan (using dry compressed air to blow dust out of the generator’s cooling vents to ensure proper airflow). Check the mounting bracket to ensure fixing screws are tight and the fixture is in good condition.

Monthly maintenance: Perform a no-load performance check on the entire ultrasonic homogenizer; start the unit briefly without a load to observe amplitude stability and check for abnormal noise.

Thoroughly clean stubborn deposits from the horn and probe gaps to prevent dried sample accumulation from affecting ultrasonic transmission. Inspect water lines for aging; replace hoses if hardening or cracking occurs. Calibrate the temperature control system to ensure accurate sample temperature monitoring. Inspect power and signal cables for aging and verify proper grounding.

Quarterly maintenance: Check transducer performance and resonance parameters; compare these with the ultrasonic homogenizer‘s initial specifications, and investigate probe wear if significant amplitude attenuation is observed.

Descale the water circuit to remove deposits from the inner pipe walls and prevent a decline in cooling efficiency. Thoroughly inspect all fasteners and seals, replacing any aging components proactively. Inspect the generator interior; disconnect the power and use air to blow out dust from the electronic control box, taking care not to touch circuit board components. Assess the probe for wear and replace it if the wear is severe.

For long-term storage, clean and dry the probe and horn; protect the probe to prevent impacts or scratches.

Drain the cooling water circuit to prevent freezing in low temperatures or algae growth within the pipes. Disconnect the power supply, coil the cables neatly, and store the unit in a dry environment. Cover the machine with a dust cover and store it away from corrosive gases and dust. Periodically power on the unit for a brief, no-load run to maintain the transducer.

Regarding operation and maintenance: never run the probe without immersion; activating the ultrasonic function while the probe is not submerged in liquid will rapidly damage it.

Ensure the probe tip does not touch the container bottom or walls to avoid damage from wear or resonance. Thoroughly clean the probe between tests of different samples to prevent cross-contamination. After testing corrosive samples, clean the probe immediately to prevent corrosion or pitting. Always disconnect the power and allow the unit to cool before replacing the probe or disassembling the transducer. Do not soak the probe in strong acids or alkalis for extended periods. Regularly record the probe’s wear status to determine when a replacement is needed. Poor heat dissipation can cause power irregularities and trigger protective shutdowns; ensure adequate ventilation around the equipment.