BOXUN BXQ-250 Full-Range Temperature-Controlled Incubator

Overview

The BOXUN BXQ-250 Full-Range Temperature-Controlled Incubator is an engineered solution for precise, stable, and traceable thermal conditioning of biological, microbiological, and biochemical samples across a broad operational envelope—from sub-ambient chilling to elevated incubation temperatures (0–80 °C). Designed in accordance with ISO 13485-aligned manufacturing practices and validated for GLP-compliant environments, the BXQ-250 employs a closed-loop, inverter-controlled refrigeration system paired with PID-based heating regulation to maintain high reproducibility and minimal thermal deviation (±0.5 °C fluctuation at 25 °C; ±1 °C uniformity across chamber volume). Its dual-door architecture—featuring a full-view tempered glass inner door—minimizes thermal disturbance during observation while supporting uninterrupted experimental continuity. The unit meets fundamental requirements for BOD analysis, microbial culture (including fungi and aerobic/anaerobic strains), seed germination, plant tissue propagation, and stability testing in pharmaceutical and environmental laboratories.

Key Features

• 5-inch LCD capacitive touchscreen interface with intuitive BRIGHT I control system, enabling real-time parameter adjustment and dynamic environmental compensation
• Multi-tier password management (administrator/operator/user levels) to enforce procedural integrity and prevent unauthorized configuration changes
• Onboard non-volatile memory storing ≥5 years of timestamped temperature logs without external media; data exportable via USB in immutable .csv format for audit-ready traceability
• Comprehensive event logging—including parameter modifications, alarm triggers (over-temperature, door open, sensor failure), and maintenance timestamps—with UTC-synchronized timestamps
• Programmable calendar-based scheduling (Gregorian calendar support) and dual-mode timer (minutes/hours) for automated start/stop cycles aligned with SOPs or regulatory timelines
• Six-step adjustable airflow velocity to accommodate diverse sample types—from delicate cell monolayers to high-moisture agar plates—without inducing evaporative stress or cross-contamination
• Dual-stage thermal safety architecture: independent mechanical over-temperature cutoff + electronic fail-safe shutdown, compliant with IEC 61000-6-2/6-4 EMC standards
• Low-noise imported compressor (<50 dB[A] typical operating level) and frost-free operation across full temperature range, eliminating manual defrost cycles and associated downtime

Sample Compatibility & Compliance

The BXQ-250 supports a wide spectrum of life science applications requiring defined thermal profiles: bacterial growth kinetics (e.g., Escherichia coli, Staphylococcus aureus), fungal isolation (e.g., Aspergillus niger), BOD₅ incubation per ASTM D5210 and ISO 5815-1, plant photoperiod studies (when used with optional lighting modules), and long-term strain preservation at controlled sub-ambient conditions. Chamber geometry—featuring seamless rounded corners, 316L stainless-steel interior, and integrated condensate recovery channels—ensures cleanability and minimizes microbial harborage. Two 30-mm-diameter validation ports (left/right sidewalls) enable calibrated probe insertion per IQ/OQ protocols. The unit conforms to relevant sections of ISO 14644-1 (cleanroom compatibility), EN 61000-6-2 (immunity), and FDA 21 CFR Part 11 when paired with BOXUN’s validated data management software (optional).

Software & Data Management

Data integrity is maintained through embedded firmware that enforces write-once archival logic for all logged events and temperature records. Exported files are digitally signed and time-stamped using internal RTC synchronized to NTP servers (when connected via RS-485 gateway). Audit trails include user ID, action type, pre-change/post-change values, and exact UTC timestamp—fully satisfying ALCOA+ principles (Attributable, Legible, Contemporaneous, Original, Accurate, Complete, Consistent, Enduring, Available). Optional integration with BOXUN CloudLink™ platform enables remote monitoring, SMS/email alerts (via GSM module), and centralized fleet management across multi-site laboratories. All software modules undergo annual re-validation per GAMP 5 guidelines.

Applications

• Environmental monitoring labs performing wastewater BOD assays and aquatic toxicity screening
• Pharmaceutical QC/QA departments conducting stability studies under ICH Q1A(R2) conditions (e.g., 25 °C/60% RH, 30 °C/65% RH simulated via auxiliary humidity control)
• Agricultural research institutes executing seed viability testing and tissue culture propagation
• Food safety laboratories culturing pathogens (e.g., Listeria monocytogenes) per ISO 11290-1 and AOAC methods
• Academic teaching labs requiring robust, serviceable incubators for undergraduate microbiology curricula
• Clinical microbiology labs maintaining reference strains and preparing inocula for antimicrobial susceptibility testing (AST)

FAQ

Does the BXQ-250 support temperature validation per ISO/IEC 17025?
Yes—the unit includes two 30 mm validation ports, a calibrated Pt100 sensor (traceable to NIST standards), and supports third-party qualification using thermocouple mapping rigs. IQ/OQ documentation templates are available upon request.
Can the internal data logger meet FDA 21 CFR Part 11 requirements?
When used with BOXUN’s validated CloudLink™ software suite (optional), the system provides electronic signatures, role-based access control, and immutable audit trails—fulfilling core Part 11 criteria for electronic records and signatures.
Is the 250 L chamber volume usable at both 0 °C and 80 °C?
Yes—frost-free inverter cooling and optimized heat distribution ensure stable operation across the full specified range without derating or performance compromise.
What materials are used in the interior chamber construction?
316L stainless steel with electropolished finish, radius-curved corners (R ≥15 mm), and integrated condensate drainage channels to prevent pooling and biofilm formation.
Are calibration certificates included with shipment?
A factory-issued calibration report (covering temperature accuracy at three points: 5 °C, 37 °C, and 60 °C) is provided. UKAS-accredited calibration is available as a value-added service.