Shumei KQ3200DE 6L Benchtop Digital Ultrasonic Cleaner
| Brand | Shumei |
|---|---|
| Origin | Jiangsu, China |
| Model | KQ3200DE |
| Capacity | 6 L |
| Ultrasonic Frequency | 40 kHz |
| Ultrasonic Power | 150 W |
| Power Adjustment Range | 40–100% |
| Temperature Control Range | Ambient to 80 °C |
| Timer Range | 1–480 min |
| Lid with Sound-Dampening Design | Yes |
| Manual Fill/Drain | Yes |
| Construction Material | 304 Stainless Steel |
| Control System | Microprocessor-Based Digital Interface |
| Safety Protections | Over-Temperature, Over-Voltage, Over-Current, Low-Water-Level, and Empty-Tank Detection |
| Automatic Frequency Sweeping | Yes |
| Energy Conversion Efficiency | Optimized via Upgraded Transducer Drive Circuitry |
Overview
The Shumei KQ3200DE is a 6-liter benchtop digital ultrasonic cleaner engineered for precision cleaning of delicate laboratory components, analytical instrumentation parts, optical elements, and small-volume sample preparation vessels. It operates on the principle of cavitation—generated by high-frequency (40 kHz) acoustic energy transmitted through a liquid medium—producing microscopic implosions that dislodge particulate contaminants, organic residues, and adsorbed films from submerged surfaces. Designed for routine use in QC/QA laboratories, research facilities, and instrument maintenance workshops, the KQ3200DE delivers consistent, non-abrasive cleaning without mechanical agitation or chemical aggressiveness. Its microprocessor-controlled architecture ensures repeatable process parameters across multiple cleaning cycles, supporting traceability requirements under GLP and ISO/IEC 17025-compliant environments.
Key Features
- Microprocessor-based digital control system with real-time display of operating parameters including elapsed time, set and actual temperature, ultrasonic power level (40–100% adjustable), and fluid level status.
- Robust 304 stainless steel tank construction ensures long-term corrosion resistance against aqueous cleaning solutions, mild alkaline detergents, and ethanol-based rinses.
- Integrated safety monitoring with automatic shutdown triggered by over-temperature, over-voltage, over-current, low-water-level, or empty-tank conditions—critical for unattended operation and equipment protection.
- Automatic frequency sweeping circuitry maintains optimal transducer resonance across varying load conditions and solution compositions, enhancing cavitation uniformity and reducing hot-spot formation.
- Sound-dampening hinged lid minimizes ambient noise emissions (<65 dB(A) at 1 m) while containing vapor and improving thermal retention during heated cycles.
- Energy-efficient drive electronics improve electroacoustic conversion efficiency and reduce reactive power draw—verified via internal thermal profiling during continuous 4-hour operation at 100% power.
Sample Compatibility & Compliance
The KQ3200DE accommodates standard laboratory ware up to 170 mm in height and 150 mm in diameter—including glass vials, syringe filters, HPLC injection needles, cuvettes, watch glasses, and ceramic crucibles. It supports aqueous, low-concentration detergent, and isopropanol-based cleaning media. While not certified for medical device reprocessing per ISO 15883 or sterilization per ANSI/AAMI ST79, the unit complies with general electrical safety standards IEC 61010-1 (Edition 3.1) for laboratory equipment. Its programmable timer and temperature stability (±2 °C at 60 °C) enable alignment with ASTM D2292 (standard practice for ultrasonic cleaning of metal specimens) and USP (cleaning validation guidance for pharmaceutical manufacturing tools).
Software & Data Management
The KQ3200DE operates via embedded firmware with no external PC dependency. All operational settings—including time, temperature, and power—are stored in non-volatile memory and recalled upon power-up. The interface logs the last five executed cycles (start time, duration, max temperature reached, and fault events), accessible via scroll navigation. Though it lacks Ethernet or USB data export, its parameter repeatability (CV <1.8% for 10 consecutive 10-min cycles at 60 °C/80% power) supports manual logbook documentation required under FDA 21 CFR Part 11 Annex 11 for non-automated systems. Audit trail capability is maintained through physical operator sign-off on printed batch records.
Applications
- Cleaning of HPLC autosampler vials, column frits, and injector seals prior to chromatographic analysis.
- Removal of polishing compounds and surface oxides from metallurgical cross-sections before SEM imaging.
- Preparation of quartz cuvettes and optical lenses for UV-Vis spectrophotometry to minimize scattering artifacts.
- Routine decontamination of pipette tips, microcentrifuge tubes, and electrophoresis combs in molecular biology workflows.
- Supporting ASTM E1417 (liquid penetrant testing) by removing residual developer prior to fluorescent inspection.
FAQ
Is the KQ3200DE suitable for cleaning sensitive electronic components?
Yes—when operated at reduced power (40–60%) and with deionized water or low-surface-tension solvents, it effectively removes flux residues without damaging solder joints or thin-film coatings.
Can the unit be used with flammable solvents?
No. The KQ3200DE is not explosion-proof and lacks solvent vapor monitoring; only aqueous or water-miscible solutions within flash point >60 °C are permitted.
Does it support continuous operation beyond 480 minutes?
No—the maximum timer setting is 480 minutes (8 hours); extended cleaning requires manual reset or external scheduling.
What is the recommended maintenance interval for transducers?
Visual inspection every 6 months; performance verification via aluminum foil test (ASTM D2292 Annex A1) is advised quarterly for critical applications.
Is calibration documentation provided with shipment?
Factory verification reports (temperature accuracy, timer deviation, and power output linearity) are included; third-party calibration certificates are available upon request.
