BOXUN SPX-150B-Z Biochemical Incubator

Overview

The BOXUN SPX-150B-Z Biochemical Incubator is a microprocessor-controlled, forced-air incubation system engineered for stable, reproducible temperature environments in life science laboratories. Designed according to standard biochemical incubation requirements, it operates on the principle of active air circulation—driven by an internal axial fan—to ensure rapid thermal equilibration and minimize spatial gradients across the chamber volume. Its compressor-based refrigeration system enables precise sub-ambient operation down to 0 °C, extending utility beyond ambient-only applications into low-temperature microbial preservation, BOD incubation, and enzymatic reaction studies. The unit complies with fundamental design expectations for Class II biochemical incubators per ISO 13408-1 (sterility assurance) and aligns with general laboratory equipment safety standards (IEC 61010-1). Its operational envelope—0–50 °C with 0.1 °C resolution and ≤±2 °C uniformity—is validated for routine use in environmental monitoring, pharmaceutical QC, academic microbiology, and agricultural research settings where consistent thermal conditioning of biological samples is critical.

Key Features

• Forced-air convection system with adjustable-speed internal fan ensures rapid temperature recovery (<6 min after 10 °C door opening) and minimizes vertical/horizontal thermal stratification.
• Compressor-based cooling using environmentally compliant R134a refrigerant enables reliable sub-ambient operation without dry-ice dependency or external chillers.
• PMMA I microprocessor control architecture provides dual-setpoint capability (temperature + timer), real-time deviation logging, and non-volatile memory retention for all user parameters—including setpoints, timers, and alarm thresholds—ensuring continuity after power interruption.
• Mirror-polished 304 stainless-steel interior chamber resists corrosion from repeated disinfectant exposure (e.g., 70% ethanol, 1% sodium hypochlorite) and facilitates cleaning validation per GLP-compliant lab protocols.
• Electrostatically coated cold-rolled steel exterior offers mechanical durability and resistance to abrasion in shared lab environments; ergonomic rounded-corner design improves operator safety and space integration.
• Large-area vacuum-insulated double-glazed observation window maintains thermal integrity while enabling unobstructed visual monitoring without compromising chamber stability.
• Three adjustable-height stainless-steel shelves (expandable to five), each rated for 15 kg static load, accommodate varied vessel configurations—from Petri dishes and culture flasks to multi-well plates and serum bottles.

Sample Compatibility & Compliance

The SPX-150B-Z accommodates standard microbiological and cell-based sample formats including agar plates, broth tubes, Erlenmeyer flasks (up to 2 L), roller bottles, and stacked microtiter plates. Its 150 L working volume (500 × 335 × 955 mm internal dimensions) supports simultaneous incubation of heterogeneous sample sets under identical thermal conditions. The unit meets baseline regulatory expectations for non-GMP laboratory use, including traceability of temperature setpoints and runtime via onboard event log (timestamped power-on/power-off, over-temperature alarms, door-open events). While not certified for ISO 13485 or FDA 21 CFR Part 11 out-of-the-box, its parameter memory, audit-ready LED display, and deterministic thermal response support integration into validated workflows when paired with external data loggers meeting NIST-traceable calibration requirements.

Software & Data Management

The SPX-150B-Z operates autonomously via its embedded PMMA I controller—no PC interface or proprietary software is required for basic operation. All settings (temperature, timer, alarm thresholds) are configured through tactile membrane keys with immediate LED feedback. The dual-display interface shows setpoint and real-time chamber temperature concurrently, eliminating cognitive load during routine checks. For labs requiring electronic records, optional RS-485 or analog 4–20 mA output modules (sold separately) enable connection to centralized SCADA systems or third-party data acquisition platforms compliant with ASTM E2500-13 (verification of automated systems). Internal event logs retain up to 100 timestamped entries—including door openings exceeding 30 seconds and temperature excursions beyond ±3 °C—for retrospective review during internal audits.

Applications

• Biochemical oxygen demand (BOD₅) testing per APHA Standard Methods 5210B and ISO 5815-1, maintaining strict 20 ± 0.5 °C compliance for wastewater effluent analysis.
• Microbial culture propagation and maintenance of mesophilic bacteria (e.g., E. coli, Bacillus subtilis), yeasts, and molds under controlled aerobic conditions.
• Seed germination and plant tissue culture pre-incubation where photoperiod control is unnecessary but thermal consistency is essential.
• Stability testing of diagnostic reagents, vaccines, and biologics at accelerated storage temperatures (e.g., 37 °C for 72 h challenge studies).
• Enzyme kinetics assays requiring precise low-temperature incubation (e.g., 4–10 °C for protease inhibition studies).
• Environmental simulation for aquatic toxicology experiments, including sediment incubation and benthic microcosm conditioning.

FAQ

Does the SPX-150B-Z support humidity control?
No. This model is a dry-air biochemical incubator. Humidity management requires dedicated CO₂ or humidified incubators such as the BOXUN HH.WJ series.
Is the unit suitable for GMP-regulated environments?
It can be deployed in GMP-adjacent areas (e.g., QC labs for non-critical testing) but lacks factory-installed 21 CFR Part 11 compliance features (e.g., electronic signatures, role-based access control). Validation must be performed per site-specific IQ/OQ protocols.
What is the typical temperature recovery time after door opening?
Under standard test conditions (25 °C setpoint, 10-second door opening), recovery to ±0.5 °C occurs within 5.8 minutes, verified per ASTM E145-20 Annex A3 methodology.
Can external sensors be connected for independent verification?
Yes—via optional analog output (4–20 mA) or RS-485 Modbus RTU interface, allowing integration with calibrated third-party thermistors or data loggers for concurrent monitoring.
What maintenance is required for long-term reliability?
Biannual inspection of condenser coil cleanliness, annual verification of temperature sensor calibration against NIST-traceable reference, and periodic fan bearing lubrication per manufacturer’s service bulletin BOXUN-INC-SV-2023-07.