SPX-150B-Z Biochemical Incubator

Overview

The SPX-150B-Z Biochemical Incubator is a microprocessor-controlled, general-purpose incubation system engineered for stable, long-term temperature maintenance in life science laboratories. Designed around a dual-mode (heating/cooling) thermoregulation architecture, it employs a high-efficiency R134a refrigerant—fully compliant with international ozone-depletion potential (ODP = 0) and global environmental protocols including the Montreal Protocol and EU F-Gas Regulation. Its sealed refrigeration circuit integrates a globally certified hermetic compressor and low-noise axial circulation fan, enabling continuous operation over extended cycles without thermal drift or mechanical fatigue—addressing a well-documented limitation of legacy dual-mode incubators. The unit maintains precise setpoint stability across its operational range of 5–50 °C, supporting critical applications such as BOD incubation (per ASTM D5210), microbial culture (ISO 7218), fungal growth studies, plant tissue propagation, and pharmaceutical stability testing under controlled ambient conditions.

Key Features

• Microprocessor-based PID temperature control with 0.1 °C resolution and real-time digital feedback loop for ±1 °C fluctuation tolerance
• Energy-optimized cooling system using environmentally certified R134a refrigerant and low-power compressor assembly (300 W nominal input)
• Dual-display LED interface: independent upper/lower screens for simultaneous setpoint and actual temperature readout, with intuitive touch-sensitive membrane keypad
• Power-failure recovery function: automatic parameter retention and resume-on-power restoration—including timer state, set temperature, and shelf configuration memory
• Robust mechanical construction: cold-rolled steel exterior with electrostatic epoxy powder coating; mirror-polished 304 stainless-steel interior chamber (corrosion-resistant, non-porous, easy to sanitize)
• Ergonomic design: large-view vacuum-insulated tempered glass door with anti-fog coating; three fully adjustable stainless-steel shelving tiers (load-rated per shelf)
• Integrated illumination: standard white LED lighting (switchable on/off); optional UV-C germicidal lamp upgrade available upon request for sterility-critical workflows

Sample Compatibility & Compliance

The SPX-150B-Z accommodates standard laboratory vessels including Petri dishes, multi-well plates, culture flasks (T25–T175), Erlenmeyer shake flasks, and glass serum bottles. Its uniform internal airflow pattern—validated via ISO 14644-1 Class 8 air distribution mapping—ensures ±1.5 °C spatial uniformity across the full 150 L chamber volume (500 × 315 × 955 mm). The unit meets IEC 61010-1:2010 safety requirements for laboratory equipment and complies with GB/T 17288–2021 (Chinese National Standard for Biochemical Incubators). While not inherently GLP/GMP-certified, its data integrity features—including non-volatile memory and deterministic power-recovery behavior—support audit-ready documentation under FDA 21 CFR Part 11 when integrated with validated external logging systems.

Software & Data Management

The SPX-150B-Z operates autonomously via embedded firmware with no proprietary software dependency. All configuration parameters—including temperature setpoint, timer duration (0–999 hours), display brightness, and alarm thresholds—are stored in EEPROM with write-cycle endurance exceeding 100,000 cycles. Real-time temperature logging is not built-in; however, the unit provides an analog output port (0–5 V DC proportional to chamber temperature) compatible with third-party data acquisition systems (e.g., LabVIEW, MATLAB Data Acquisition Toolbox, or ISO/IEC 17025-accredited chart recorders). Optional RS-485 Modbus RTU interface modules are available for integration into centralized building management systems (BMS) or LIMS environments requiring remote monitoring and event-triggered alerts.

Applications

• Biochemical oxygen demand (BOD) testing per APHA Standard Methods 5210B and EPA Method 405.1
• Microbial cultivation of mesophilic bacteria (e.g., Escherichia coli, Staphylococcus aureus) and fungi (Aspergillus niger, Candida albicans) under CLSI M22-A3 guidelines
• Seed germination, plant callus induction, and photoperiod-independent tissue culture
• Environmental monitoring: water quality analysis, sediment toxicity assays, and algal growth rate determination
• Pharmaceutical QC: stability storage of reference standards and excipient blends at defined intermediate temperatures
• Veterinary diagnostics: isolation and enumeration of pathogens from clinical swabs and fecal samples

FAQ

Does the SPX-150B-Z support humidity control?

No—this model is a dry-air biochemical incubator. Humidity regulation is not integrated. For applications requiring controlled RH, consider the companion SHP series with steam-humidification module.
Is calibration certificate included with shipment?

A factory calibration report (traceable to NIM, China) is provided. Full ISO/IEC 17025-accredited calibration must be arranged separately through authorized metrology service providers.
Can the incubator be stacked or installed in enclosed cabinetry?

No. Minimum rear clearance of 100 mm and side clearance of 50 mm are required for heat dissipation. Forced-air ventilation above the unit is prohibited.
What is the mean time between failures (MTBF) for the refrigeration system?

Based on accelerated life testing per IEC 60601-1 Annex H, the compressor assembly demonstrates MTBF ≥ 35,000 operating hours under continuous 25 °C ambient conditions.
Are replacement shelves and UV lamps available as spare parts?

Yes. Stainless-steel shelves (P/N: SPX-SH-304-150), UV-C lamps (P/N: SPX-UV-254-15W), and door gaskets (P/N: SPX-GSK-625) are stocked and ship within 3 business days.