Biostream BH-25 Electric Constant Temperature Incubator

Overview

The Biostream BH-25 Electric Constant Temperature Incubator is a precision-engineered laboratory incubation system designed for reliable, long-term maintenance of biological samples under tightly controlled thermal conditions. Utilizing advanced PID (Proportional-Integral-Derivative) feedback control architecture, the BH-25 delivers exceptional thermal stability and spatial uniformity—critical parameters for cell culture, microbial growth, enzyme assays, and stability testing in pharmaceutical development. Its chamber operates across a wide usable range from ambient +5°C to 65°C, with verified performance of ±0.1°C stability and <±0.3°C uniformity at the biologically critical setpoint of 37°C. The unit is constructed to meet international safety and ergonomics standards for Class II laboratory equipment, including IEC 61010-1 compliance for electrical safety and ISO 13485-aligned design principles relevant to medical device–adjacent applications.

Key Features

• 7-inch high-resolution TFT touchscreen interface with intuitive menu navigation, real-time temperature graphing, and multi-level user access control (operator, supervisor, administrator)
• Dual-seal tempered glass inner door with low-emissivity coating—provides superior thermal insulation while enabling continuous visual monitoring without compromising chamber integrity
• Electropolished stainless-steel interior chamber and fully adjustable, perforated stainless-steel shelves (standard configuration: 3; maximum configurable: 8), optimized for airflow distribution and ease of decontamination
• Independent mechanical overtemperature cut-off circuit—fully redundant to the main controller—activates at user-defined or factory-set thresholds, triggering simultaneous visual alert (flashing LED), audible alarm, and immediate power disconnection to heating elements
• Intelligent door-interlock system: automatically suspends fan operation and heater output upon door opening; initiates timed alarm sequence after 60 seconds if door remains open, minimizing thermal excursion and energy waste
• High-efficiency thermal insulation using halogen-free, low-conductivity polyurethane foam (≥45 mm thickness), ensuring external cabinet surface temperatures remain below 40°C during continuous operation at 65°C

Sample Compatibility & Compliance

The BH-25 supports a broad spectrum of life science workflows—including mammalian and insect cell culture, bacterial and fungal propagation, hybridoma maintenance, and accelerated stability studies per ICH Q1 guidelines. Its validated thermal performance meets requirements for GLP-compliant environments and aligns with key regulatory expectations for incubator qualification (e.g., ASTM E2875-22 for temperature uniformity verification). The stainless-steel chamber resists corrosion from common disinfectants (e.g., 70% ethanol, hydrogen peroxide vapor, quaternary ammonium compounds), facilitating routine sanitization between runs. All electronic components conform to RoHS 2011/65/EU and REACH SVHC regulations. Optional IQ/OQ documentation packages are available to support FDA 21 CFR Part 11–compliant validation protocols.

Software & Data Management

The integrated controller logs temperature data at user-selectable intervals (1 s to 60 min) with timestamped entries stored internally (≥12 months of continuous recording at 1-min intervals). Data export is supported via USB 2.0 port in CSV format for traceability and audit readiness. An optional Ethernet module enables remote monitoring through secure HTTP/HTTPS endpoints and integration into centralized building management systems (BMS) or LIMS platforms. Audit trail functionality records all parameter changes, user logins, alarm events, and door-open durations—supporting ALCOA+ data integrity principles required under GxP frameworks.

Applications

• Continuous maintenance of adherent and suspension cell lines under physiologically relevant conditions
• Microbiological cultivation for QC testing in pharmaceutical manufacturing (USP & EP microbiological methods)
• Enzyme kinetics and protein folding studies requiring precise thermal ramping and hold profiles
• Accelerated stability testing of drug substances and products per ICH Q1A(R3)
• Educational laboratories conducting foundational biology experiments with reproducible environmental control
• Biobanking workflows where short-to-medium term sample storage at defined non-cryogenic temperatures is required

FAQ

Is the BH-25 suitable for CO₂-independent cell culture applications?

Yes—the BH-25 is a temperature-only incubator with no integrated CO₂ control or humidity regulation. It is intended for applications where atmospheric CO₂ levels are sufficient or externally managed.
Can the incubator be validated for GMP environments?

Yes—its stable thermal performance, full data logging capability, and optional IQ/OQ documentation package enable qualification per Annex 15 and EU GMP guidelines.
What is the recommended calibration frequency?

Annual calibration using NIST-traceable reference probes is advised; internal sensor verification can be performed daily using a calibrated handheld thermometer per SOP.
Does the unit support password-protected parameter locking?

Yes—three-tier user authentication (Operator, Supervisor, Administrator) restricts access to critical settings such as temperature limits, alarm thresholds, and data export functions.
Are replacement shelves and accessories available separately?

Yes—stainless-steel shelves (part no. S-BH25-SS), shelf supports (part no. SP-BH25), and HEPA filtration kits (optional add-on) are stocked and shipped globally.