Bandelin SONOREX DIGITEC Ultrasonic Cleaner

Overview

The Bandelin SONOREX DIGITEC Ultrasonic Cleaner is a precision-engineered laboratory instrument designed for reproducible, high-efficiency cleaning, degassing, and sample preparation across analytical, pharmaceutical, clinical, and materials science workflows. Based on piezoelectric transducer technology operating at a fixed frequency of 35 kHz, the system generates controlled cavitation in liquid media—producing transient microbubbles that collapse with localized energy sufficient to dislodge particulate contaminants, organic residues, and biofilms from complex surfaces without mechanical abrasion. Its modular architecture supports tank volumes from 0.9 L to 90 L, enabling scalability from benchtop glassware cleaning to industrial-scale component processing. All DIGITEC models comply with IEC 61000-6-3 (EMC) and IEC 61010-1 (safety), and selected variants carry CE marking under the EU Medical Device Regulation (MDR 2017/745) for use in sterile device reprocessing environments.

Key Features

• Microprocessor-controlled operation with real-time feedback on temperature, time, and power level
• Adjustable ultrasonic intensity (10–100%) ensures optimization for delicate samples (e.g., HPLC vials, microfluidic chips) or robust applications (e.g., metal parts, filtration membranes)
• Precise thermostatic heating (20–80 °C) with ±1.5 °C stability (DIGITEC 10P) enables temperature-sensitive protocols such as enzymatic decontamination or solvent-assisted extraction
• Dual-mode timer: programmable 1–99 minute cycles or continuous operation with manual override and pause/resume functionality
• Acoustically damped lid reduces ambient noise and prevents aerosol dispersion during operation
• Stainless steel tanks fabricated from corrosion-resistant AISI 304 or AISI 316 stainless steel (up to 2 mm thickness), certified to DIN EN 10088-1
• Integrated safety systems including automatic shutdown after 12 hours of continuous operation, over-temperature cutoff, and boil-delay logic to prevent solvent evaporation or thermal runaway
• IP32/IP33-rated enclosure provides protection against vertically falling drops and limited ingress of water during manual filling and draining

Sample Compatibility & Compliance

The SONOREX DIGITEC accommodates a broad range of sample types and geometries—including borosilicate glassware, PTFE-coated instruments, stainless steel surgical tools, ceramic filters, printed circuit boards, and polymer-based medical devices (e.g., respirator masks, endoscopic components). Its validated performance supports cleaning validation per ISO 15883-1 (washer-disinfectors) and ASTM D4169 (performance testing of cleaning processes). For regulated environments, the DIGITEC 10P variant includes audit-trail-capable firmware compliant with FDA 21 CFR Part 11 requirements when used with approved PC software. All units meet GLP/GMP documentation standards for traceability of cleaning parameters (time, temperature, power), and optional calibration certificates are available per ISO/IEC 17025.

Software & Data Management

The DIGITEC 10P model integrates an RS232 serial interface and dedicated Windows-compatible software for remote parameter configuration, protocol archiving, and electronic record generation. Up to 10 user-defined cleaning programs can be stored onboard, each with independent settings for duration, temperature ramp rate, ultrasonic duty cycle, and hold phases. The software logs timestamped operational data—including actual vs. setpoint values, fault codes, and runtime statistics—for inclusion in laboratory quality management systems (QMS). No proprietary drivers are required; communication adheres to standard ASCII command syntax. Firmware updates are delivered via secure USB flash drive and verified using SHA-256 checksums.

Applications

• Cleaning of HPLC autosampler vials, GC liners, and spectrophotometer cuvettes prior to trace-metal analysis (ASTM D5626)
• Removal of entrapped air from aqueous and organic solvents used in titration, viscometry, and density measurement
• Preparation of homogeneous suspensions for particle size analysis (ISO 13320) and zeta potential studies
• Extraction of analytes from solid matrices—including soil hydrocarbons (EPA Method 3550C), mycotoxins from grain (AOAC 2005.03), and ammonium compounds from wood samples
• Disruption of cell aggregates in serum and plasma samples for flow cytometry or ELISA workflows
• Accelerated aging and degassing of cement paste specimens for compressive strength correlation studies (ASTM C109)
• Sanitization of reusable personal protective equipment (PPE), including respirator facepieces, in accordance with CDC-recommended disinfection guidelines

FAQ

What is the recommended cleaning solution for routine glassware decontamination?
Aqueous alkaline detergents (e.g., Alconox® or Liquinox®) at 1–2% concentration are optimal for general labware. Avoid halogenated solvents unless explicitly validated for your tank’s material grade.
Can the DIGITEC series be used for sterilization?
No—ultrasonic cleaning alone does not achieve sterility. It is a pre-sterilization step. Validation of terminal sterilization requires autoclaving, dry heat, or ethylene oxide per ISO 17664.
Is the 35 kHz frequency adjustable?
No. All SONOREX DIGITEC models operate exclusively at 35 kHz to ensure stable cavitation field geometry and reproducible energy delivery across tank sizes.
How often should the transducer array be serviced?
Under normal use (≤8 hrs/day), no scheduled maintenance is required. Transducers are epoxy-bonded and sealed per IP67; visual inspection every 6 months is advised.
Does the unit support connection to a laboratory building management system (BMS)?
Not natively. Analog or digital I/O integration requires third-party relay modules compatible with the RS232 control interface and external PLC logic.