MKN BS-1E Digital Display Orbital Shaking Incubator

Overview

The MKN BS-1E Digital Display Orbital Shaking Incubator is an integrated environmental control platform engineered for simultaneous temperature regulation and controlled orbital agitation—essential for microbial culture expansion, cell suspension propagation, enzyme kinetics studies, and biochemical assay development. Its operational principle combines precision PID-driven thermal management with mechanically stable eccentric-drive oscillation, ensuring consistent shear environment and uniform thermal distribution across the culture volume. Unlike static incubators, the BS-1E maintains physiological relevance for aerobic or semi-aerobic cultures by sustaining dissolved oxygen transfer via continuous liquid motion—critical for E. coli batch cultivation, yeast fermentation optimization, and recombinant protein expression in shake flasks. The unit operates within a biologically relevant temperature envelope (5–50 °C), accommodating both psychrophilic and mesophilic applications without condensation risk, thanks to its double-glazed observation window and sealed chamber architecture.

Key Features

• Microprocessor-controlled PID temperature regulation with real-time digital display and ±0.5 °C accuracy across the full operating range (5–50 °C)
• Orbital shaking mechanism with adjustable speed (40–260 rpm) and fixed 20 mm amplitude—optimized for compatibility with standard Erlenmeyer flasks (50–2000 mL) and culture tubes
• Stainless steel (AISI 304) interior chamber resistant to corrosion from sterilants, alcohols, and mild acids—facilitating routine decontamination and long-term reliability
• High-efficiency DC fan system enabling forced convection airflow, minimizing vertical and horizontal thermal gradients (<±0.8 °C uniformity at 37 °C)
• Dual-layer tempered glass viewing window with anti-fog coating—enabling non-invasive visual monitoring without compromising chamber integrity or thermal stability
• Polyurethane foam insulation (≥40 mm thickness) providing low thermal conductivity (<0.022 W/m·K) and energy-efficient operation
• Programmable timer (0–999 minutes) with auto-shutdown function—supporting unattended overnight runs and protocol repeatability

Sample Compatibility & Compliance

The BS-1E accommodates standard laboratory vessels including baffled and non-baffled shake flasks (up to 2000 mL), test tubes, microtiter plates (with optional adapter), and custom bioreactor sleeves. Its 470 mm × 370 mm platform supports multi-vessel configurations while maintaining mechanical balance at maximum speed. The unit complies with IEC 61010-1:2010 safety standards for laboratory equipment and meets electromagnetic compatibility requirements per EN 61326-1. While not certified for sterile-grade applications (e.g., ISO Class 5), it is routinely deployed in GLP-aligned environments where traceable calibration, maintenance logs, and user access controls are maintained per institutional SOPs. Optional documentation packages support audit readiness for academic, pharmaceutical QC, and contract research organizations.

Software & Data Management

The BS-1E operates via embedded firmware with no external software dependency—ensuring deterministic response and eliminating cybersecurity vulnerabilities associated with networked controllers. All operational parameters (setpoint, actual temperature, speed, elapsed time) are continuously displayed on a high-contrast LED interface. Though not equipped with USB or Ethernet connectivity, the device supports manual data logging via external thermocouple probes (Type K) and external tachometers during validation studies. For facilities requiring electronic records, integration with standalone data loggers (e.g., Omega OM-DAQPRO-5300) is validated using analog output adapters. Audit trail functionality is maintained through physical operator logs aligned with 21 CFR Part 11 principles when used in regulated workflows.

Applications

• Microbial growth curve analysis under controlled aeration and thermal conditions
• Suspension culture of insect or mammalian cells in serum-free media
• Enzyme activity assays requiring constant mixing to prevent substrate depletion gradients
• Antibiotic susceptibility testing using broth microdilution formats
• Soil microbiome enrichment and biodegradation kinetics experiments
• Seed germination and phytohormone response studies in plant tissue culture labs
• Method development for ASTM D5524 (standard practice for evaluating biodegradability in aqueous media)

FAQ

Can the BS-1E be used for CO₂-sensitive cultures?
No—this model does not provide CO₂ or humidity control; it is intended for ambient-air aerobic applications only.
Is the shaking motion programmable for ramping or step profiles?
No—the speed setting is fixed per run; multi-step protocols require manual intervention between cycles.
What is the recommended calibration interval?
Annual verification against NIST-traceable references is advised, with temperature and speed sensors calibrated separately using dry-block calibrators and optical tachometers.
Does the unit include overtemperature or motor overload protection?
Yes—integrated thermal cut-off switches and current-limiting circuitry prevent damage during extended operation or mechanical stall events.
Can the incubator operate continuously for 72+ hours?
Yes—designed for uninterrupted operation under rated load (≤25 kg) and ambient conditions ≤30 °C and ≤70% RH.