Shumei KQ-200VDV Desktop Tri-Frequency Digital Ultrasonic Cleaner

Overview

The Shumei KQ-200VDV is a desktop tri-frequency digital ultrasonic cleaner engineered for precision cleaning, degassing, emulsification, homogenization, extraction, and cell disruption in laboratory, academic, and light industrial environments. Unlike conventional single-frequency ultrasonic cleaners, the KQ-200VDV employs three independently selectable and programmable ultrasonic frequencies—45 kHz, 80 kHz, and 100 kHz—within a single transducer-coupled stainless steel tank. This multi-frequency architecture leverages differential cavitation dynamics: lower frequencies (e.g., 45 kHz) generate larger, higher-energy bubbles suitable for macro-contaminant removal and coarse cleaning; mid-range frequencies (80 kHz) balance energy and resolution for general-purpose cleaning of delicate components; and higher frequencies (100 kHz) produce smaller, more densely distributed cavitation nuclei ideal for micro-scale particle detachment and high-fidelity surface decontamination. The system supports automatic sequential frequency switching at user-defined intervals (1–999 seconds), enabling staged cleaning protocols—coarse → intermediate → fine—within a single cycle. Its integrated microcontroller-based control system ensures reproducible parameter recall, real-time monitoring, and fail-safe operation under varying load and liquid conditions.

Key Features

• Tri-frequency ultrasonic generation (45/80/100 kHz) with programmable auto-switching between frequencies during a single cleaning cycle
• Digital microcontroller interface with simultaneous real-time display of ultrasonic frequency, power level (%), elapsed time, set/actual temperature, actual liquid level, and cumulative operating hours (up to 999,999 h)
• Adjustable ultrasonic power output (40–100 % of 200 W nominal) and precise temperature control (10–80 °C, ±1 °C stability) via 400 W built-in heater
• Stainless steel (SUS304) inner tank (300 × 150 × 180 mm, 8 L capacity) with reinforced corner welds and corrosion-resistant finish
• Integrated acoustic damping cover and thermal insulation layer to reduce ambient noise (<55 dB(A)) and minimize heat loss
• Built-in volatile solvent vapor recovery system for enhanced safety when using low-boiling-point solvents (e.g., acetone, isopropanol)
• Comprehensive protection logic: low-water-level cutoff, dry-run prevention, over-temperature shutdown, over-current/over-voltage detection, and fault-code indication
• Plastic mesh basket included for sample support; compatible with standard laboratory glassware and precision components

Sample Compatibility & Compliance

The KQ-200VDV accommodates a broad range of sample types—including optical lenses, semiconductor wafers, surgical instruments, printed circuit boards (PCBs), analytical filters, chromatography columns, and biological tissue samples—without mechanical abrasion or thermal degradation. Its frequency-selective cavitation profile minimizes pitting on soft metals (e.g., aluminum, copper) and prevents delamination of thin-film coatings. The unit meets general electrical safety requirements per IEC 61010-1 for laboratory equipment. While not certified to specific ISO/IEC 17025 or GLP validation protocols out-of-the-box, its digital parameter logging (frequency, power, temperature, time, liquid level) supports traceable method development and audit-ready documentation when integrated into validated lab workflows. Users performing cleaning validation per ASTM F2464 (Standard Guide for Ultrasonic Cleaning Process Validation) or ISO 13408-1 (Aseptic Processing) may leverage the device’s repeatability and programmability as part of qualification protocols.

Software & Data Management

The KQ-200VDV operates via an embedded microcontroller with non-volatile memory that retains all user-defined parameters—including frequency sequence, switching intervals, power setpoints, temperature profiles, and timer configurations—across power cycles. All operational data (including cumulative runtime, fault events, and last-used settings) are stored locally and displayed directly on the front-panel LCD. No external software, drivers, or USB connectivity are required. For laboratories requiring electronic records compliant with FDA 21 CFR Part 11, the unit can be operated within documented SOPs where manual entry of batch-specific parameters is verified and signed by authorized personnel. Optional external data loggers (e.g., RS-232 or analog output modules) may be interfaced for long-term trend analysis in GMP-aligned facilities.

Applications

• Pre-analytical sample preparation: removal of organic residues from HPLC vials, GC autosampler needles, and ICP-MS nebulizers
• Microelectronics: cleaning photomasks, MEMS devices, and wire-bonded substrates without damaging fine geometries
• Life sciences: gentle cell lysis and organelle isolation using low-power, high-frequency modes
• Materials science: debubbling ceramic slurries, dispersing nanomaterials in aqueous/organic media, and preparing colloidal suspensions
• Quality control labs: standardized cleaning of reference standards, calibration weights, and metrology fixtures prior to measurement
• Academic research: method development for solvent-assisted extraction of plant metabolites or polymer dissolution kinetics

FAQ

What cleaning solvents are compatible with the KQ-200VDV?
Aqueous detergents, ethanol, isopropanol, acetone, and terpene-based solvents are commonly used. Avoid highly chlorinated or strongly acidic solutions unless verified for compatibility with SUS304 stainless steel and the unit’s sealing materials.
Can the KQ-200VDV be used for degassing viscous liquids?
Yes—particularly effective at 45 kHz with extended dwell time (≥10 min) and moderate heating (40–50 °C); optimal for silicone oils, resins, and glycerol-based formulations.
Is the frequency switching fully automatic within one cycle?
Yes—the microcontroller executes pre-programmed frequency transitions at user-specified intervals without manual intervention.
Does the unit support continuous operation beyond 480 minutes?
While the timer maxes at 480 min per cycle, the cumulative operating time counter (999,999 h) confirms suitability for unattended overnight or multi-cycle operation with manual restart.
How is temperature accuracy maintained during prolonged heating?
A PID-controlled 400 W heater and dual NTC sensors (for setpoint and actual bath temperature) ensure ±1 °C stability across the full 10–80 °C range, verified per internal calibration routine.