Yiheng BPN Series CO₂ Incubator

Overview

The Yiheng BPN Series CO₂ Incubator is a precision-engineered environmental chamber designed for reliable, contamination-controlled cell and tissue culture under physiologically relevant conditions. It operates on the principle of maintaining stable CO₂ concentration (typically 5% v/v), temperature (commonly 37°C), and high relative humidity (>95% RH) to replicate in vivo extracellular pH and osmotic balance—critical for mammalian cell viability, proliferation, and functional integrity. The system employs infrared (IR) CO₂ sensing technology for real-time, drift-free gas concentration monitoring, coupled with PID-controlled heating and proportional CO₂ injection to ensure rapid recovery and long-term stability—even during frequent access. Dual heating configurations (air-jacketed and water-jacketed variants) provide flexibility: air-jacketed models offer faster temperature response and lower energy consumption, while water-jacketed units deliver superior thermal uniformity and power-failure resilience. All models comply with core biosafety and quality assurance expectations for routine cell culture, bioproduction, and regulated research environments.

Key Features

• Microprocessor-based PID controller with large backlit LCD display showing simultaneous real-time values for temperature, CO₂ concentration, and optional relative humidity.
• High-efficiency 0.3 µm microbial filter on CO₂ inlet line, achieving ≥99.99% removal of airborne bacteria, spores, and particulates per ISO 14644-1 Class 5 requirements.
• Dual-door design with heated inner glass door to eliminate condensation and minimize contamination risk from moisture-mediated microbial transfer.
• Automatically modulated circulation fan speed—reducing airflow-induced evaporation and shear stress on sensitive monolayer cultures and 3D organoids.
• Integrated 120°C dry-heat sterilization cycle (180 min) validated to achieve ≥6-log reduction of bacterial endospores (e.g., Bacillus atrophaeus) per ISO 15883-1 standards.
• UV-C germicidal lamp (254 nm) mounted on rear chamber wall, programmable for periodic decontamination of internal surfaces and humidification reservoir vapor phase.
• Independent dual-limit temperature alarm system with audible/visual alert—fully compliant with GLP/GMP operational safety protocols.
• RS-485 serial interface supporting data logging, remote parameter adjustment, and audit-trail-capable event recording (compatible with FDA 21 CFR Part 11–ready software).

Sample Compatibility & Compliance

The BPN incubators accommodate standard T-flasks (25 cm² to 225 cm²), multi-well plates (6–96-well), Petri dishes, roller bottles, and custom bioreactor inserts. Stainless-steel interior with seamless, radius-rounded corners ensures full cleanability and compatibility with ethanol, hydrogen peroxide vapor (HPV), and saturated steam decontamination. Units meet IEC 61010-1 (Safety Requirements for Laboratory Equipment) and are CE-marked for use in EU laboratories. While not pre-certified to ISO 13485 or cGMP Annex 1, their design supports qualification under ASTM E1957 (Standard Guide for Qualification of Environmental Chambers) and supports IQ/OQ/PQ validation packages required by pharmaceutical QC labs and academic core facilities.

Software & Data Management

Data acquisition is enabled via RS-485 communication using Modbus RTU protocol. Optional Yiheng-supplied PC software permits continuous monitoring, configurable alarm thresholds, export of timestamped CSV logs (temperature, CO₂, humidity, door events, UV status), and graphical trend analysis. All logged parameters—including operator-initiated changes and fault codes—are time-stamped with millisecond resolution and stored locally within the controller’s non-volatile memory for ≥30 days. Audit trail functionality satisfies GLP documentation requirements and facilitates root-cause analysis during deviation investigations. No cloud connectivity or proprietary firmware updates are implemented—ensuring data sovereignty and IT security compliance in regulated institutions.

Applications

• Mammalian cell culture for monoclonal antibody production, vaccine development, and stem cell expansion.
• Primary neuron and iPSC-derived organoid maintenance requiring strict CO₂ and humidity control.
• Embryology labs performing IVF, embryo culture, and preimplantation genetic testing (PGT).
• Microbiology applications including fastidious pathogen propagation (e.g., Helicobacter pylori, Neisseria gonorrhoeae) requiring capnophilic conditions.
• Academic and industrial cancer research involving co-culture systems, drug sensitivity assays, and 3D tumor spheroid modeling.
• Quality control testing of medical devices and biomaterials per ISO 10993-5 cytotoxicity standards.

FAQ

What CO₂ sensor technology is used, and how often does it require calibration?
Each BPN model uses a factory-calibrated NDIR (non-dispersive infrared) CO₂ sensor with built-in temperature and pressure compensation. Calibration is recommended annually or after sensor exposure to >50% CO₂ for extended periods; zero-point verification can be performed using ambient air (0.04% CO₂).

Can the incubator maintain sterility during daily use in shared core facilities?
Yes—when combined with routine UV cycles, HEPA-filtered CO₂ supply, and strict aseptic technique, the BPN series achieves sustained bioburden control. The microbial inlet filter and heated glass door significantly reduce airborne and condensate-mediated contamination pathways.

Is humidity control active or passive, and what is the typical RH stability?
Humidity is maintained passively via stainless-steel water pan(s) with natural evaporation. Under steady-state 37°C/5% CO₂ operation, RH remains ≥95% with ±3% short-term fluctuation—sufficient for most adherent and suspension cultures. Digital RH monitoring and feedback-controlled ultrasonic humidification are available as OEM upgrades.

How is temperature uniformity verified across the chamber volume?
Uniformity is validated per ASTM E1957 Annex A4 using nine calibrated thermocouples placed at defined spatial coordinates (corners, center, mid-height). All standard BPN models demonstrate ≤±0.3°C deviation across the working volume at 37°C.

Does the unit support integration into a centralized laboratory building management system (BMS)?
Yes—via optional RS-485-to-Modbus TCP gateway, enabling real-time telemetry (alarms, setpoints, runtime hours) and remote reset commands compatible with common BMS platforms (Siemens Desigo, Honeywell Experion).