Keebio KEEBIO-600N High-Voltage Power Supply for Electrophoresis

Overview

The Keebio KEEBIO-600N High-Voltage Power Supply is a precision-engineered DC power source specifically designed for horizontal and vertical electrophoresis applications in life science laboratories. It operates on the fundamental principle of applying controlled electric fields across polyacrylamide or agarose gels to drive charged biomolecules—such as DNA fragments, RNA, proteins, and peptides—through the gel matrix at rates determined by their size, charge, and conformation. The unit delivers stable, low-noise output with real-time feedback control, ensuring reproducible migration patterns critical for downstream analysis including band quantification, molecular weight estimation, and comparative profiling. Its design complies with IEC 61010-1 safety standards for laboratory electrical equipment and supports routine operation under GLP-aligned workflows in forensic, academic, and quality control environments.

Key Features

• Triple-mode output regulation: independently selectable constant voltage (CV), constant current (CC), or constant power (CP) modes—each dynamically maintained with ±1% accuracy over full load range
• Four isolated high-voltage output channels enabling concurrent operation of up to four electrophoresis tanks—ideal for parallel sample screening or multi-gel validation studies
• Programmable memory for ten user-defined protocols (0–9), supporting repeatable experimental conditions across shifts and operators
• Intelligent auto-recovery function that resumes pre-interruption settings—including voltage, current, time remaining, and active mode—following transient AC power loss
• Comprehensive safety architecture featuring automatic shutdown on open-circuit (no-load), short-circuit (overload), ground-fault (leakage), and thermal overload conditions
• Backlit graphical LCD display (128×64 pixels) simultaneously showing setpoint and real-time measured values for voltage, current, power, and elapsed/remaining time
• Timer resolution of 1 minute with adjustable step increments; maximum duration of 99 hours and 59 minutes—suitable for overnight or extended native PAGE runs
• Stackable, anti-slip chassis with ventilation-optimized layout for stable benchtop deployment in multi-instrument lab configurations

Sample Compatibility & Compliance

The KEEBIO-600N accommodates standard mini-gel systems (e.g., 120 × 120 mm formats) used in SDS-PAGE, Western blotting, isoelectric focusing (IEF), and nucleic acid separation. Its 600 V maximum output supports high-resolution native electrophoresis and discontinuous buffer systems requiring elevated field strength. The unit meets CE marking requirements per Directive 2014/30/EU (EMC) and 2014/35/EU (LVD), and conforms to ISO/IEC 17025 calibration traceability guidelines when paired with NIST-traceable multimeters. While not FDA 21 CFR Part 11 certified out-of-the-box, its deterministic timer logic, non-volatile protocol storage, and immutable event logging (via optional RS-232 data export) facilitate audit-ready documentation in regulated QC/QA labs.

Software & Data Management

The KEEBIO-600N operates as a standalone instrument with embedded firmware—no host PC required for basic operation. All parameter inputs, mode selections, and timing sequences are executed via tactile membrane keys with audible confirmation feedback. For integration into centralized lab data systems, an optional RS-232 interface enables ASCII command-based remote control and timestamped output logging (voltage, current, power, status flags). Logged data may be parsed into CSV format for import into LIMS platforms or statistical analysis tools such as GraphPad Prism or R. Firmware updates are performed via UART bootloader using manufacturer-provided utilities—ensuring long-term compatibility with evolving regulatory documentation practices.

Applications

• SDS-PAGE and native PAGE for protein subunit analysis and purity assessment in biopharmaceutical development
• Agarose gel electrophoresis for PCR product verification, plasmid restriction digest mapping, and genomic DNA integrity checks
• Two-dimensional electrophoresis (2-DE) first-dimension IEF runs requiring precise voltage ramping and stabilization
• Forensic STR profiling and mitochondrial DNA fragment analysis in crime lab casework
• Teaching laboratories performing foundational molecular biology techniques with emphasis on instrument reliability and student safety
• QC release testing of recombinant enzymes, antibodies, and diagnostic reagents per internal SOPs aligned with ISO 13485

FAQ

What electrophoresis tank models are compatible with the KEEBIO-600N’s 4-output configuration?
The unit features universal banana-jack outputs compatible with standard electrophoresis chambers from major suppliers—including Bio-Rad Mini-PROTEAN, Thermo Fisher Owl E1, and Cleaver Scientific HE series—provided they accept 600 V DC input and use 4 mm plug connectors.
Does the KEEBIO-600N support gradient voltage programming during a single run?
No—it maintains fixed CV, CC, or CP setpoints throughout the programmed duration. For multi-step voltage protocols, users must manually initiate sequential programs or integrate external programmable relays via the RS-232 trigger interface.
Is calibration documentation included with shipment?
Each unit ships with a factory calibration certificate referencing EN 61000-4-30 compliant measurement methodology; full metrological traceability to national standards is available upon request at time of order.
Can the timer be paused and resumed without resetting the elapsed time?
Yes—the pause/resume function preserves both accumulated runtime and remaining countdown, maintaining continuity for interrupted experiments such as gel loading or buffer replacement.
What maintenance is required to ensure long-term output stability?
Annual verification of output accuracy using a calibrated digital multimeter is recommended; internal cleaning of ventilation grilles every six months prevents thermal derating in continuous-use environments.