SHUMEI KQ-100VDE Desktop Tri-Frequency Digital Ultrasonic Cleaner

Overview

The SHUMEI KQ-100VDE is a benchtop tri-frequency digital ultrasonic cleaner engineered for laboratories requiring high-fidelity, multi-stage cleaning protocols across diverse sample types. Unlike conventional single-frequency ultrasonic systems—whose cavitation intensity and bubble collapse dynamics are constrained by fixed resonance—this instrument employs three independently selectable ultrasonic frequencies (45 kHz, 80 kHz, and 100 kHz) within a single stainless steel tank. Each frequency generates distinct acoustic pressure profiles and cavitation bubble characteristics: lower frequencies (e.g., 45 kHz) produce larger, more energetic bubbles suited for macro-particulate removal and heavy contamination; mid-range frequencies (80 kHz) balance penetration depth and micro-cleaning resolution; while higher frequencies (100 kHz) generate smaller, denser bubble clouds ideal for delicate surfaces and sub-micron contaminant detachment. The programmable sequential switching between frequencies—configurable in intervals from 1 to 999 seconds—enables automated coarse wash → intermediate rinse → precision final clean cycles without manual intervention. This architecture supports deterministic cleaning process development aligned with ISO 13485 cleanliness validation requirements and ASTM F2798 guidelines for ultrasonic cleaning efficacy assessment.

Key Features

• Tri-frequency digital generator with real-time frequency selection and auto-switching logic via embedded microcontroller firmware
• Full-parameter digital display: simultaneous readout of actual liquid level (1–70 mm), bath temperature (real-time and setpoint), ultrasonic power (%), elapsed time, cumulative operating hours (up to 999,999 h), and selected frequency mode
• Stainless steel inner tank (SUS304) formed by deep-drawn stamping for structural integrity and corrosion resistance under aqueous and mild solvent conditions
• Adjustable ultrasonic power output (40–100% of 100 W nominal) with linear control response for reproducible energy delivery
• Precise thermostatic heating system (400 W, 10–80 °C range) with ±1 °C stability and independent temperature sensor feedback loop
• Integrated safety architecture: dry-run protection, low-level cutoff, overtemperature lockout, overvoltage/overcurrent fault detection with visual alarm indicators
• Acoustically optimized lid with thermal insulation layer reducing ambient noise emission and minimizing heat loss during extended operation
• Modular design supporting optional upgrades including solvent vapor recovery (VDV-series compatible) and Ethernet-enabled remote monitoring (via RS232/RS485 interface)

Sample Compatibility & Compliance

The KQ-100VDE accommodates a broad spectrum of laboratory substrates—including glassware (vials, cuvettes, pipette tips), metal components (surgical instruments, optical mounts), ceramic filters, silicon wafers, and polymer-based microfluidic chips—without surface pitting or etching when operated within validated parameter envelopes. Its triple-frequency capability enables method-specific optimization: e.g., 45 kHz for particulate-laden filtration membranes, 80 kHz for HPLC column frits, and 100 kHz for MEMS device cleaning prior to bonding. The unit complies with IEC 61000-6-3 (EMC emissions), IEC 61010-1 (electrical safety for laboratory equipment), and meets essential requirements for GLP-compliant environments when paired with audit-trail-capable software (see Software section). While not certified for sterile processing per ISO 17664, it serves as a critical pre-sterilization cleaning step aligned with AAMI ST79 and USP recommendations.

Software & Data Management

The embedded control system logs all operational parameters—including start/stop timestamps, frequency transitions, power modulation events, temperature excursions, and fault codes—to non-volatile memory. When connected to SHUMEI’s optional PC-based LabControl Suite (Windows/Linux), users can export CSV-formatted session reports, generate SOP-compliant cleaning logs, and configure password-protected parameter templates for departmental standardization. The software supports 21 CFR Part 11 compliance through electronic signature capture, user role assignment (admin/operator/auditor), and immutable audit trails with SHA-256 hash verification. All data exports include metadata tags for instrument ID, firmware revision, and calibration status—facilitating traceability in regulated QC/QA workflows.

Applications

• Pre-analytical sample preparation: removal of residual solvents, oils, or biological residues from GC vials, NMR tubes, and mass spectrometry source components
• Materials science: debubbling epoxy resins prior to curing, dispersing nanomaterials in suspension, and cleaning TEM grids
• Pharmaceutical R&D: cleaning tablet punches and dies between formulation batches; degassing buffer solutions for HPLC mobile phase preparation
• Biotechnology: lysing adherent cell monolayers in microplates (low-power 100 kHz mode), cleaning microcentrifuge rotors post-high-speed runs
• Electronics manufacturing: flux residue removal from PCB test fixtures and SMT stencils without solder mask degradation
• Academic research: standardizing ultrasonic-assisted extraction protocols for natural product isolation (e.g., polyphenols from plant matrices)

FAQ

Is the KQ-100VDE suitable for use with flammable solvents such as acetone or ethanol?
No. This model is designed exclusively for aqueous and water-miscible cleaning solutions. Flammable solvent use requires explosion-proof certification (ATEX/IECEx) and dedicated vapor recovery hardware—available only in SHUMEI’s VDV-series industrial configurations.
Can frequency switching be disabled to operate at a single fixed frequency?
Yes. The unit supports manual lock mode for any one of the three frequencies, enabling repeatable single-frequency protocols for method transfer or comparative studies.
What is the maximum recommended fill level for optimal cavitation efficiency?
For consistent acoustic field uniformity, maintain liquid height between 30 mm and 65 mm above the transducer plane—verified via the real-time digital level indicator.
Does the cumulative timer retain its value after power cycling?
Yes. The counter is stored in battery-backed SRAM and persists across power interruptions, supporting long-term equipment utilization tracking per ISO 55001 asset management standards.
Is calibration documentation available for metrological traceability?
Factory calibration certificates (including frequency accuracy ±0.5%, temperature sensor NIST-traceable verification, and power output linearity testing) are provided with each unit and archived in the firmware for on-demand retrieval.