Shumei KQ2200DE Desktop Digital Ultrasonic Cleaner (3L Capacity)
| Brand | Shumei |
|---|---|
| Origin | Jiangsu, China |
| Model | KQ2200 / KQ2200DE / KQ2200DA / KQ2200DB |
| Capacity | 3 L |
| Ultrasonic Frequency | 40 kHz |
| Ultrasonic Power | 100 W |
| Power Adjustment | Yes (40–100% in 10% increments) |
| Temperature Control | Yes (Room temperature to 80 °C, ±1 °C accuracy) |
| Timer Range | 1–480 min (1-min resolution) |
| Lid | Sound-dampening hinged cover |
| Drain/Inlet | Manual valve-controlled |
| Tank Material | AISI 304 stainless steel |
| Protection Features | Over-temperature, over-voltage, over-current, low-level liquid, and dry-run safety interlocks |
| Control System | Microprocessor-based digital interface with real-time parameter display and memory recall |
Overview
The Shumei KQ2200DE is a benchtop digital ultrasonic cleaner engineered for precision cleaning of delicate laboratory components—including glassware, pipette tips, microfluidic chips, optical lenses, and small metal parts—where particle removal efficiency and process repeatability are critical. It operates on the principle of cavitation-induced acoustic streaming: high-frequency (40 kHz) ultrasonic energy generates controlled microbubble implosions within the cleaning solution, producing localized shear forces that dislodge sub-micron contaminants without mechanical abrasion. Its 3-liter stainless-steel tank (AISI 304) supports consistent energy distribution across typical sample geometries used in analytical labs, QC environments, and R&D facilities. Designed for integration into GLP-compliant workflows, the unit features embedded safety logic and parameter logging capabilities suitable for routine validation protocols.
Key Features
- Microprocessor-controlled digital interface with dual-line LCD display showing real-time values for temperature, ultrasonic power level, elapsed time, and setpoint parameters.
- Programmable power output (40–100% in 10% steps), enabling optimization for sensitive substrates or viscous solutions where aggressive cavitation may cause damage or foaming.
- Precise thermostatic control from ambient to 80 °C (±1 °C stability), supporting aqueous and solvent-based cleaning chemistries requiring elevated temperature activation.
- Adjustable timer (1–480 minutes) with auto-shutdown and audible end-of-cycle alert; all settings retained in non-volatile memory after power loss.
- Integrated automatic frequency sweeping circuitry ensures stable transducer resonance across varying load conditions and solution aging, minimizing hot-spot formation and extending transducer service life.
- Comprehensive hardware protection suite: thermal cut-off, current-limiting circuitry, voltage regulation, low-liquid-level detection, and dry-run prevention—all indicated via dedicated LED status icons.
- Sound-dampening hinged lid reduces ambient noise to ≤55 dB(A) at 1 m distance, meeting ISO 7779 requirements for laboratory equipment acoustics.
Sample Compatibility & Compliance
The KQ2200DE accommodates standard laboratory vessels up to 120 mm in height and 100 mm in diameter, including beakers, vials, crucibles, and small instrument probes. Its tank geometry supports uniform ultrasonic field distribution as verified per ASTM E1756-22 (Standard Practice for Determining Ultrasonic Cleaning Performance). The unit complies with IEC 61000-6-3 (EMC emission limits) and IEC 61000-6-2 (immunity), and meets electrical safety requirements under IEC 61010-1 for laboratory equipment. While not certified for sterile processing per ISO 13485, it is routinely employed in pre-sterilization cleaning steps aligned with ISO 15883-1 and AAMI ST79 guidelines when paired with validated detergents.
Software & Data Management
The KQ2200DE operates autonomously without external software dependencies. All operational data—including start/stop timestamps, set parameters, and fault logs—are stored in internal EEPROM with retention exceeding 10 years. Optional RS-232 serial output (available on KQ2200DA variant) enables connection to lab information management systems (LIMS) for audit-trail generation. Parameter history supports retrospective review during FDA 21 CFR Part 11–aligned investigations, provided timestamped records are exported manually and archived per institutional SOPs. No cloud connectivity or proprietary drivers are required.
Applications
- Cleaning of HPLC autosampler vials and syringe filters prior to trace analysis.
- Removal of organic residues from quartz cuvettes and spectrophotometer cells.
- Preparation of SEM/TEM samples by eliminating particulate adhesion without altering surface topography.
- Routine decontamination of reusable pipette tips and electrophoresis combs in molecular biology labs.
- Supporting ASTM D2624 and ISO 4406 procedures for particulate analysis in hydraulic fluids and lubricants.
- Validation of cleaning efficacy in pharmaceutical manufacturing environments per USP and PDA Technical Report No. 29.
FAQ
Is the KQ2200DE suitable for use with flammable solvents?
No. This model is rated for aqueous and water-miscible solutions only. Flammable solvents require explosion-proof units certified to ATEX or IECEx standards.
Does the unit support continuous operation beyond 480 minutes?
No. Maximum timer duration is 480 minutes. For extended cycles, manual restart is required following visual inspection of solution condition and temperature stability.
Can the ultrasonic frequency be changed?
No. The transducer is fixed at 40 kHz, optimized for general-purpose contaminant removal. Variable-frequency models are available in the KQ5200 series.
What maintenance is required for long-term reliability?
Monthly inspection of tank integrity, quarterly cleaning of transducer mounting surfaces with isopropyl alcohol, and annual verification of temperature sensor calibration using a NIST-traceable thermometer.
Is the drain valve compatible with standard laboratory tubing?
Yes. The manual ball valve accepts 6–8 mm ID silicone or Tygon® tubing, allowing gravity-fed transfer to waste containers or recirculation systems.
