Shumei KQ-500GVDV Dual-Frequency Temperature-Controlled Ultrasonic Cleaner

Overview

The Shumei KQ-500GVDV Dual-Frequency Temperature-Controlled Ultrasonic Cleaner is an engineered solution for precision cleaning of delicate laboratory components, analytical instrumentation parts, optical elements, and medical devices requiring residue-free surface preparation. It operates on the principle of cavitation-induced mechanical energy transfer in liquid media—generated simultaneously at two discrete ultrasonic frequencies (45 kHz and 80 kHz)—to optimize particle dislodgement across diverse contaminant types and substrate geometries. The dual-frequency architecture enables synergistic cleaning performance: lower frequency (45 kHz) delivers higher cavitation intensity suitable for robust particulate removal, while the higher frequency (80 kHz) provides finer micro-cavitation for gentle yet effective cleaning of microstructures and narrow channels. Integrated temperature control (0–80 °C, ±2 °C accuracy), programmable timing (1–480 min), and adjustable ultrasonic power (40–100% of 500 W nominal output) ensure reproducible process conditions compliant with standardized cleaning validation protocols.

Key Features

• Dual-frequency transducer system operating at 45 kHz and 80 kHz, with user-selectable frequency switching or simultaneous dual-mode operation; frequency transition interval adjustable from 0 to 999 seconds.
• Microprocessor-controlled digital interface with real-time display of bath temperature (setpoint and actual), ultrasonic power level, elapsed time, and liquid level status.
• Stainless steel 304 construction throughout the tank and housing—corrosion-resistant, non-reactive, and compatible with aqueous and mild solvent-based cleaning solutions.
• Integrated thermal management: 800 W heating element and 350 W cooling module enable rapid stabilization and precise maintenance of setpoint temperature under varying load conditions.
• Comprehensive safety architecture including over-temperature, over-voltage, over-current, low-water-level, and dry-run protection with visual alarm indicators.
• Sound-dampening lid with ergonomic latch mechanism reduces ambient noise to ≤65 dB(A) at 1 m distance and minimizes heat loss during heated cycles.
• Electrically actuated inlet and drain valves allow automated fill-and-empty sequences, supporting unattended operation and integration into multi-step cleaning workflows.

Sample Compatibility & Compliance

The KQ-500GVDV accommodates a broad range of sample formats—including glassware (vials, cuvettes, chromatography columns), metal components (syringe needles, surgical instruments), ceramic substrates, and polymer-based microfluidic devices—within its 27 L capacity tank (500 × 300 × 180 mm internal dimensions). Its sealed “DV” series enclosure design meets IPX4-rated splash resistance and supports use in ISO Class 7–8 cleanroom-adjacent environments when operated with validated cleaning agents. While not certified to IEC 61000-6-3 or UL 61010-1 out-of-box, the unit’s electrical architecture conforms to general-purpose laboratory equipment safety expectations per GB 4793.1 (equivalent to IEC 61010-1). For regulated applications, users may implement procedural controls aligned with ASTM D2603 (ultrasonic cleaning verification), USP (cleaning validation guidance), and ISO 15883-1 (washer-disinfectors), supported by the device’s data logging readiness and parameter traceability.

Software & Data Management

The embedded single-chip controller records operational parameters—including start/stop timestamps, temperature profiles, power settings, and cycle duration—in non-volatile memory. Though no external software or PC connectivity is included, all critical parameters are retained across power cycles and displayed on the front-panel LCD. The system supports manual audit trail reconstruction via printed log sheets or operator-entered batch records. For GLP/GMP environments, users may integrate the KQ-500GVDV into broader electronic lab notebook (ELN) or LIMS platforms using time-synchronized manual entry or third-party serial-to-USB adapters (RS232 interface optional upon request). All user-defined settings—including frequency mode, ramp rate, hold time, and temperature setpoint—are stored in EEPROM and recalled at startup.

Applications

• Cleaning of HPLC, GC, and ICP-MS sample introduction components (injector ports, nebulizers, torches) prior to calibration or analysis.
• Preparation of electron microscopy grids and TEM specimens requiring nanoscale particulate removal without surface etching.
• Decontamination of reusable surgical tools and dental instruments in research animal facilities and preclinical labs.
• Removal of photoresist residues, flux contaminants, and oxide layers from semiconductor wafers and MEMS devices during R&D prototyping.
• Standardized cleaning of volumetric glassware in pharmaceutical QC laboratories under SOP-driven protocols.
• Supporting ASTM E1252 and ISO 14644-1 particle-counting validation through repeatable, documented cleaning cycles.

FAQ

Is the KQ-500GVDV compliant with FDA 21 CFR Part 11 requirements?
No—the device does not include electronic signature capability, audit trail generation, or role-based access control as defined in 21 CFR Part 11. However, it supports manual documentation practices consistent with ALCOA+ principles when used within validated cleaning procedures.
Can the unit operate continuously for extended periods?
Yes—designed for intermittent or semi-continuous operation up to 480 minutes per cycle; recommended duty cycle is ≤8 hours/day with ≥30-minute cooldown intervals between successive high-power heated cycles.
What cleaning solutions are compatible with the stainless steel tank?
Aqueous alkaline, neutral, and mildly acidic formulations (pH 4–10) are fully compatible; avoid halogenated solvents, strong oxidizers (e.g., >10% HNO₃), and undiluted organic solvents unless verified for material compatibility.
Does the unit support external temperature probe input?
No—temperature sensing is performed internally via calibrated PT100 sensor immersed in the cleaning bath; external probe integration is not supported.
Is calibration documentation provided with shipment?
A factory-issued calibration certificate for temperature accuracy (±2 °C) and timer function is included; users should perform periodic verification per internal quality procedures or ISO/IEC 17025-accredited methods.