Cole-Parmer 8895 Series Ultrasonic Cleaner

Overview

The Cole-Parmer 8895 Series Ultrasonic Cleaner is an engineered solution for precision cleaning of laboratory glassware, surgical instruments, microfluidic devices, and delicate analytical components. Operating at a stable 42 kHz frequency, the system employs piezoelectric transducers to convert electrical energy into high-frequency acoustic waves. These waves propagate through the cleaning medium—typically aqueous or solvent-based solutions—inducing controlled cavitation: the formation and implosive collapse of microscopic vapor bubbles at solid–liquid interfaces. This physical mechanism delivers non-abrasive, isotropic cleaning action without mechanical contact, preserving surface integrity of optics, coated sensors, MEMS components, and calibration standards. Designed for integration into GLP-compliant laboratories and ISO 17025-accredited testing environments, the 8895 Series supports repeatable, traceable cleaning protocols essential for residue validation, particulate removal, and pre-analytical sample preparation.

Key Features

• Three configuration tiers (A, B, C) offering progressive functionality: mechanical timer-only (A), heated operation up to 60 °C (B), and full-featured control with degassing mode, extended 99-minute digital timer, and 10–69 °C temperature regulation (C).
• Robust 316 stainless steel tank construction with dual O-ring sealing, vented groove design, and chemically resistant membrane keypad—ensuring long-term corrosion resistance and IPX4-rated splash protection.
• Frequency-sweeping ultrasonic generator delivering uniform energy distribution across the entire tank volume, minimizing standing-wave nodes and eliminating blind spots in complex geometries.
• Integrated thermal safety architecture: automatic ultrasonic shutdown if internal bath temperature exceeds 75 °C, independent of user-set parameters.
• Standard accessories include drain assembly (except 3 L models), non-slip feet, stainless steel lid, and 2.5 m power cord—designed for benchtop stability and ergonomic serviceability.

Sample Compatibility & Compliance

The 8895 Series accommodates a wide range of sample formats—from single 600 mL beakers to multi-position racks holding up to six vessels simultaneously. Optional accessories include perforated hanging trays (08850-42 series), mesh baskets (08850-45), and application-specific beaker holders (08890-50 through 08894-50). All configurations comply with UL 61010-1, CSA C22.2 No. 61010-1, and CE marking requirements under the EU Machinery Directive 2006/42/EC and EMC Directive 2014/30/EU. The system’s closed-loop thermal management and validated cavitation performance support adherence to ASTM D2603 (Standard Test Method for Sonic Shear Stability of Lubricants) and USP Analytical Instrument Qualification protocols when used in pharmaceutical QC workflows.

Software & Data Management

While the 8895 Series operates via intuitive analog/digital front-panel controls—eliminating firmware dependencies and reducing cybersecurity exposure—it integrates seamlessly into regulated environments through optional traceability tools. The companion Cavitation Intensity Meter (08894-60) provides quantitative verification of acoustic output in Cavins units (0–1000 in water; 0–100 in solvents), enabling routine performance qualification per ISO 13073-1:2015. When paired with validated cleaning agents such as Micro-90® (M-9052), users can document detergent concentration (1:100 dilution), exposure duration, and thermal profile—supporting audit readiness for FDA 21 CFR Part 11–aligned electronic records where connected systems are deployed.

Applications

• Pre-ICP-MS sample introduction system cleaning to prevent polyatomic interferences from residual salts.
• Removal of organic residues from HPLC injection valves, autosampler needles, and column frits.
• Decontamination of reusable pipette tips and electrophoresis combs prior to nucleic acid analysis.
• Surface preparation of SEM/TEM specimens requiring sub-micron particulate-free substrates.
• Routine maintenance of viscometers, density meters, and refractometers with intricate capillary pathways.

FAQ

What is the maximum allowable operating temperature for the C-model variants?
The C-model (e.g., 08895-10, -22, -34, etc.) supports programmable heating from 10 °C to 69 °C, with hardware-enforced thermal cutoff at 75 °C to prevent solvent degradation or transducer damage.

Can the 8895 Series be used with flammable solvents?
No. The system is not rated for Class I, Division 1 hazardous locations. Only aqueous or non-flammable, low-volatility solvents (e.g., IPA/water mixtures below flash point thresholds) should be used—and only in well-ventilated areas with appropriate fume extraction.

Is the cavitation intensity meter (08894-60) calibrated traceably to NIST standards?
Yes. Each unit ships with a certificate of conformance referencing NIST-traceable calibration at 42 kHz in deionized water, with documented uncertainty ≤±5% across the 0–1000 Cavins range.

How often should the stainless steel tank be passivated to maintain corrosion resistance?
Passivation is recommended after initial installation and annually thereafter using ASTM A967 Nitric Acid Method, especially when processing chloride-containing solutions or saline buffers.

Does the system support external timer or PLC integration?
No native dry-contact or analog I/O is provided. However, the mechanical timer lock position (‘Continuous’) allows external relay control of AC power input for synchronized process sequencing in automated cleanroom workflows.