Brookfield BXP-280 Electrically Heated Constant-Temperature Incubator

Overview

The Brookfield BXP-280 Electrically Heated Constant-Temperature Incubator is a precision-engineered, dry-air convection incubator designed for stable, repeatable thermal environments in microbiological culture, cell propagation, enzyme activity assays, stability testing, and quality control laboratories. It operates on forced-air convection principle—heat is generated by rear-mounted heating elements and distributed via a multi-stage adjustable axial fan system, ensuring rapid thermal equilibration and minimal spatial gradient across the entire 280 L working chamber. Unlike humidified incubators, the BXP-280 maintains a low-humidity environment suitable for applications where moisture condensation, microbial cross-contamination, or sample dehydration must be avoided—such as dry-heat sterilization validation, desiccation studies, and certain pharmaceutical stability protocols per ICH Q1A(R2). Its P.I.D. (Proportional-Integral-Derivative) analog temperature controller delivers high-resolution setpoint accuracy and dynamic compensation against load changes or ambient fluctuations.

Key Features

• Large-capacity 280 L stainless-steel interior chamber with seamless welding and rounded corners for easy cleaning and compliance with ISO 14644-1 Class 7 cleanroom-compatible handling.
• Intuitive backlit LCD interface displaying real-time setpoint, actual chamber temperature, operational status, fan speed stage, and heating/cooling phase indicators.
• Rear-heating architecture with direct airflow injection into the chamber—reducing warm-up time to 60°C in ≤15 minutes and achieving thermal recovery within 10 seconds after door opening (per ISO 15189 Annex A.3 test protocol).
• Dual independent overtemperature protection: primary sensor-based cut-off and secondary mechanical thermostat—meeting IEC 61010-1 safety requirements for laboratory equipment.
• Five-step programmable fan speed control enables optimization of air velocity for sensitive samples (e.g., agar plates) or high-throughput loading scenarios.
• 10-segment, 100-cycle programmable temperature profile capability supporting complex aging, ramp-hold-soak, or accelerated degradation studies.
• RS-485 serial interface (standard) enables integration into centralized lab monitoring systems; supports Modbus RTU protocol for third-party SCADA or LIMS connectivity.

Sample Compatibility & Compliance

The BXP-280 accommodates standard microbiological and cell-culture vessels—including Petri dishes (90–150 mm), test tubes (13–25 mm), flasks (up to 2 L), and stacked multi-well plates—on three standard stainless-steel shelves (expandable to nine). Its dry-air operation eliminates condensation-related risks during prolonged incubation, making it suitable for ASTM E2922-22 (Standard Practice for Dry-Heat Sterilization Validation) and USP dry-heat depyrogenation workflows. The unit complies with GB/T 23791–2009 (Chinese national standard for electrically heated incubators), CE marking under Directive 2014/30/EU (EMC) and 2014/35/EU (LVD), and meets mechanical safety prerequisites of ISO 13850 for emergency stop functionality. Optional wireless temperature loggers are supplied with NIST-traceable calibration certificates at three critical points (0°C, 60°C, 121°C), fulfilling IQ/OQ/PQ documentation needs for GLP and GMP-regulated environments.

Software & Data Management

The optional FDA- and GMP-compliant monitoring software provides full audit trail functionality per 21 CFR Part 11—including electronic signatures, user access tiers, immutable event logs, and change history tracking for all parameter modifications. Data export is supported in CSV, PDF, and XML formats compatible with enterprise LIMS platforms. The GPRS SMS alarm module transmits real-time alerts (e.g., temperature deviation >±2°C, power failure, door-open duration >60 s) to up to five pre-registered mobile numbers—enabling remote incident response without network dependency. All data logging—whether from the built-in controller or external wireless recorders—is time-stamped with UTC synchronization and encrypted at rest.

Applications

• Microbial growth studies (bacteria, fungi, spores) under controlled dry-heat conditions
• Thermal stability testing of APIs, excipients, and finished dosage forms per ICH guidelines
• Enzyme kinetics assays requiring precise non-humidified thermal control
• Validation of dry-heat sterilization cycles in pharmaceutical manufacturing
• Material aging tests for polymers, adhesives, and packaging components
• Environmental simulation for electronics component reliability screening
• Quality assurance workflows in food safety labs (e.g., aerobic plate count incubation at 30°C or 35°C)

FAQ

Is the BXP-280 suitable for humidified incubation?
No—it is a dry-air convection incubator with no integrated humidity generation or control system.
Can the unit be validated for GMP use?
Yes, when equipped with optional wireless temperature loggers (calibrated at 0°C, 60°C, and 121°C) and FDA/GMP monitoring software, it supports full IQ/OQ/PQ execution per Annex 15 of EU GMP Guidelines.
What is the maximum operating temperature and its safety margin?
The maximum setpoint is 100°C; the dual overtemperature cutoff activates at 105°C (sensor-based) and 110°C (mechanical backup), providing ≥5°C safety headroom.
Does the incubator support remote monitoring over Ethernet or Wi-Fi?
Not natively—the standard interface is RS-485. Ethernet or Wi-Fi connectivity requires an external protocol converter or gateway device configured for Modbus TCP bridging.
Are shelf positions adjustable or fixed?
All shelves are vertically adjustable on stainless-steel guide rails, allowing flexible configuration for varying vessel heights and airflow optimization.