Brookfield SPX-150B-ZII Biochemical Incubator

Overview

The BOXUN SPX-150B-ZII Biochemical Incubator is a precision-engineered, benchtop-grade temperature-controlled environment system designed for consistent, reproducible cultivation and maintenance of biological samples under tightly regulated thermal conditions. Built upon a dual-mode thermal management architecture—combining Peltier-assisted heating with a high-efficiency, variable-speed refrigeration circuit using environmentally compliant R134a refrigerant—the unit delivers stable operation across its full 0–60 °C range without frost accumulation at any setpoint. Its chamber design adheres to ISO 13408-1 (sterile processing of pharmaceutical products) and ASTM E1980 (standard practice for calibration of incubators), supporting GLP-compliant workflows in academic, clinical, and industrial life science laboratories. The unit is routinely deployed in BOD (Biochemical Oxygen Demand) testing per APHA Standard Methods 5210B, microbial culture per USP , fungal preservation per CLSI M38-A3, and plant tissue culture protocols requiring diurnal temperature stability.

Key Features

• Robust structural architecture: Cold-rolled steel outer casing with electrostatic epoxy-polyester powder coating; mirror-finish 304 stainless-steel interior chamber resistant to corrosion and routine disinfectants (e.g., 70% ethanol, 0.5% sodium hypochlorite).
• High-fidelity thermal control: PMMAI (Precision Microprocessor-based Adaptive Intelligence) digital controller with 0.1 °C resolution, real-time PID feedback loop, and automatic compensation for ambient load variation.
• Multi-level airflow optimization: Six-stage programmable fan speed control enables precise adjustment of convective heat transfer—critical for minimizing evaporative loss in open Petri dishes or microtiter plates while ensuring uniform temperature distribution (±1.5 °C at 37 °C, validated per IEC 61000-4-3).
• Operational resilience: Built-in power failure recovery logic retains all setpoints and runtime parameters during grid interruption; restarts automatically upon power restoration without manual reconfiguration.
• Human-centric interface: Backlit capacitive touch panel with intuitive icon-driven navigation; dual-line LCD display showing setpoint/actual temperature and timer status simultaneously.
• Enhanced observability and utility: Full-height vacuum-insulated tempered glass viewport with anti-fog coating; integrated 8 W cool-white LED illumination; standard 220 V/50 Hz internal power outlet (IEC 60320 C13) for auxiliary devices such as CO₂ sensors or mini-peristaltic pumps.

Sample Compatibility & Compliance

The SPX-150B-ZII accommodates standard microbiological consumables including 90 mm and 100 mm Petri dishes, 25 cm² and 75 cm² cell culture flasks, multiwell plates (6–96-well), and glass culture tubes (13 × 100 mm). Its interior volume (91.3 L) and three factory-installed 304 stainless-steel shelves (expandable to five) support staggered stacking configurations without compromising airflow integrity. The unit complies with EN 61000-6-2 (immunity) and EN 61000-6-4 (emissions), carries CE marking per EU Directive 2014/30/EU (EMC) and 2014/35/EU (LVD), and meets RoHS 2011/65/EU material restrictions. It supports audit-ready documentation packages aligned with FDA 21 CFR Part 11 requirements when paired with BOXUN’s optional IQ/OQ validation kits.

Software & Data Management

While the SPX-150B-ZII operates as a standalone instrument, its PMMAI controller logs up to 30 days of timestamped temperature history (sampled every 60 seconds) in non-volatile memory. Data export is supported via optional RS-485 interface (Modbus RTU protocol) for integration into laboratory information management systems (LIMS) or SCADA platforms. When used with BOXUN’s certified data acquisition software (v3.2+), users can generate PDF-formatted calibration reports traceable to NIM (National Institute of Metrology, China) standards, complete with uncertainty budgets and trend analysis charts—fully compatible with ISO/IEC 17025 accreditation frameworks.

Applications

• Biochemical oxygen demand (BOD₅) incubation per ISO 5815-1 and EPA Method 405.1.
• Microbial enumeration (total viable count, coliforms, yeasts/molds) per ISO 4833-1, ISO 21528-2, and AOAC 977.27.
• Pharmaceutical stability testing per ICH Q1A(R2) intermediate condition (30 °C/65% RH simulated via external humidifier).
• Plant seed germination and callus induction studies requiring precise thermoperiodicity (e.g., 25 °C day / 20 °C night cycles).
• Long-term strain preservation of mesophilic bacteria (e.g., E. coli, Bacillus subtilis) and filamentous fungi (e.g., Aspergillus niger) at 4–8 °C (using extended low-temperature mode).
• Enzyme activity assays where thermal drift must remain below ±0.5 °C over 24-hr periods.

FAQ

Does the SPX-150B-ZII support humidity control?
No—this is a dry-air biochemical incubator. For applications requiring controlled relative humidity (e.g., cell culture), consider BOXUN’s SHP series saturated-humidity incubators.
Is the internal power outlet grounded and fused?
Yes—the 220 V AC outlet is earthed and protected by a 2 A slow-blow fuse located behind the rear service panel.
Can the unit be validated for GMP environments?
Yes—BOXUN provides IQ/OQ documentation templates, sensor calibration certificates (NIST-traceable Pt100 probe), and installation verification checklists meeting Annex 15 (EU GMP) and FDA Guidance for Industry on Process Validation.
What is the acoustic noise level during operation?
≤42 dB(A) at 1 m distance, measured per ISO 3744, due to the low-RPM imported hermetic compressor and vibration-damped mounting system.
How often does the unit require preventive maintenance?
Annual inspection is recommended: condenser coil cleaning, door gasket integrity check, and verification of temperature uniformity using a 9-point NIST-traceable probe array.