Hebei HOP Biochemical Incubator SPX-250B-Z

Overview

The Hebei HOP Biochemical Incubator SPX-250B-Z is a precision-engineered, microprocessor-controlled laboratory incubator designed for stable, long-term maintenance of biological samples under tightly regulated thermal conditions. Operating on resistive heating and natural convection air circulation, the unit maintains uniform temperature distribution across its interior chamber without forced airflow—minimizing desiccation risk for moisture-sensitive cultures, microbial suspensions, and plant tissue explants. Its operational range of 5–50 °C accommodates standard mesophilic bacterial growth (e.g., E. coli, Bacillus subtilis), fungal cultivation (e.g., Aspergillus, Candida), BOD₅ incubation per ASTM D5210 and ISO 5815-1, and seed germination or photoperiod-independent plant physiological studies. The absence of fan-driven airflow ensures low-vibration, low-turbulence conditions essential for unstirred liquid cultures, agar-based plate storage, and delicate embryonic or algal samples.

Key Features

• Robust construction: Cold-rolled steel outer casing with electrostatic epoxy powder coating; mirror-finish 304 stainless-steel inner chamber resistant to corrosion and routine disinfectants (e.g., 70% ethanol, 1% sodium hypochlorite)
• Precision temperature control: Single-chip microcomputer PID algorithm with 0.1 °C resolution and real-time digital feedback; temperature fluctuation limited to ±0.5 °C and uniformity maintained at ±1 °C across full load (verified per IEC 61000-4-2 ambient immunity standards)
• Human-centered interface: Dual high-brightness LED display showing setpoint and actual chamber temperature simultaneously; touch-sensitive membrane keypad with tactile response and debounce logic for reliable input in humid lab environments
• Operational resilience: Built-in power-loss recovery function that retains all user-defined parameters (setpoint, timer, shelf configuration) during unexpected outages; automatic resumption of timing and temperature regulation upon power restoration
• Observability & accessibility: Large-area vacuum-insulated tempered glass door with anti-fog coating; internal LED illumination (cool-white, 4000 K CCT) providing shadow-free viewing without thermal load interference
• Modular utility: Four independently adjustable stainless-steel shelves (load capacity: 15 kg per shelf); shelf positions configurable in 25 mm increments to accommodate flasks (up to 2 L), Petri dishes, multi-well plates, or custom trays

Sample Compatibility & Compliance

The SPX-250B-Z supports a broad spectrum of life science workflows requiring non-CO₂, non-humidified thermal stabilization. It is routinely deployed in GLP-compliant environmental testing labs for BOD₅ analysis (aligned with EPA Method 405.1 and APHA Standard Methods 5210B), pharmaceutical stability studies (ICH Q1A–Q1E), and QC microbiology for water, food, and cosmetic products per USP Microbiological Examination of Nonsterile Products (USP <61>). While not certified for GMP manufacturing environments, its parameter memory, deterministic timer logic, and stable thermal profile support audit-ready documentation when integrated into laboratory quality management systems (e.g., ISO/IEC 17025). The unit meets CE marking requirements for electromagnetic compatibility (EN 61326-1) and low-voltage safety (EN 61010-1).

Software & Data Management

This model operates as a standalone instrument with no embedded data logging or network connectivity. All operational parameters—including temperature setpoint, elapsed time, remaining timer duration, and current chamber temperature—are displayed in real time on the dual LED screen. For traceable recordkeeping, users are advised to pair the incubator with external calibrated data loggers (e.g., compliant with NIST-traceable thermistors or PT100 sensors) connected via analog 4–20 mA or RS-485 Modbus RTU interfaces. Manual entry of incubation start/end timestamps and observed conditions satisfies basic ALCOA+ principles (Attributable, Legible, Contemporaneous, Original, Accurate) when documented in bound lab notebooks or validated electronic lab notebooks (ELN) supporting 21 CFR Part 11 audit trails.

Applications

• Environmental monitoring: BOD₅ incubation of wastewater and surface water samples at 20 °C for 5 days
• Microbiological quality control: Enumeration of total viable counts (TVC), coliforms, and Pseudomonas aeruginosa per ISO 4833-1 and ISO 16649-2
• Phytopathology & agronomy: Seed germination assays, fungal spore activation, and root elongation studies under controlled thermal regimes
• Veterinary & aquaculture diagnostics: Cultivation of fish pathogens (e.g., Aeromonas hydrophila, Flavobacterium psychrophilum) at species-specific optimal temperatures
• Biotechnology education: Undergraduate teaching labs for microbial growth kinetics, thermal death time experiments, and media solidification validation

FAQ

Does this incubator support CO₂ or humidity control?
No. The SPX-250B-Z is a dry, non-humidified, ambient-air incubator. It does not include CO₂ sensors, gas mixing manifolds, or steam/humidification modules.
Is calibration certification included with purchase?
Factory calibration verification is provided; however, a NIST-traceable calibration certificate requires third-party service prior to first use or per institutional SOPs (typically recommended annually).
Can the unit be stacked or installed in enclosed cabinetry?
No. Minimum clearance of 100 mm must be maintained on all sides—including rear—for adequate convective heat dissipation and compliance with EN 61010-1 ventilation requirements.
What is the maximum load weight the chamber can safely accommodate?
Total payload must not exceed 60 kg, distributed evenly across the four shelves; overloading compromises temperature uniformity and may trigger thermal cutoff protection.
Is firmware upgradable in the field?
Firmware is固化 (hard-coded) and not user-upgradable; functional enhancements require hardware revision per Hebei HOP’s product lifecycle policy.