Huitai LRH150FN Biochemical Incubator

Overview

The Huitai LRH150FN Biochemical Incubator is a precision-engineered, forced-air incubation platform designed for stable, reproducible temperature control in life science laboratories. It operates on a convection-based thermal regulation principle—utilizing a variable-speed JAKEL tube-flow fan coupled with an internally optimized ducted air circulation architecture—to ensure consistent heat distribution across the entire 150 L working volume. Unlike natural convection units, this system actively manages boundary-layer formation and minimizes thermal stratification, delivering uniform conditions critical for microbial growth studies, enzyme activity assays, cell culture maintenance (non-CO₂-dependent), and biochemical reaction kinetics. The unit features a CFC- and HCFC-free refrigeration circuit, enabling operation from ambient +5 °C down to 0 °C and extending upward to 65 °C—covering a broad spectrum of mesophilic, thermophilic, and psychrophilic experimental requirements.

Key Features

• Large backlit LCD interface with intuitive menu navigation and real-time display of setpoint, actual temperature, and operational status
• Two-stage fan speed control (“Fast”/“Slow”) to balance air exchange rate and sample desiccation risk—particularly beneficial for long-duration cultures or low-volume liquid media
• Proprietary ducted airflow system engineered to eliminate dead zones and reduce temperature gradients; validated uniformity of ±1.0 °C at 25 °C (empty chamber, per ISO 15279:2021 Annex D methodology)
• Mirror-finish 304 stainless steel interior with semi-circular corner geometry—facilitating complete cleaning, minimizing microbial retention, and complying with GLP-aligned hygiene standards
• Passive internal humidity management: integrated condensate venting pathway automatically evacuates excess water vapor generated during heating cycles, reducing manual defrost frequency and mitigating condensation-related contamination risks
• Microprocessor-based PID temperature controller with 0.1 °C resolution and adaptive tuning—achieving ±0.3 °C fluctuation at elevated setpoints and ±0.5 °C at sub-ambient conditions

Sample Compatibility & Compliance

The LRH150FN accommodates standard laboratory vessels including Petri dishes, multi-well plates (up to 96-well format), Erlenmeyer flasks (≤1 L), and glass culture tubes. Its non-CO₂ design makes it suitable for applications where atmospheric CO₂ levels are not required—such as bacterial fermentation, fungal sporulation, biochemical stability testing, and reagent storage conditioning. The unit meets IEC 61010-1:2010 safety requirements for laboratory equipment and conforms to electromagnetic compatibility (EMC) standards per EN 61326-1:2013. While not certified for GMP manufacturing environments, its construction and performance characteristics align with common QC/QA protocols referenced in USP , ISO/IEC 17025, and ASTM E1752–22 (Standard Guide for Selection and Use of Incubators).

Software & Data Management

The LRH150FN operates as a standalone instrument with no embedded data logging or remote connectivity. All parameter adjustments and monitoring occur locally via the front-panel interface. For laboratories requiring audit-ready records, integration with external data acquisition systems is supported through optional analog output (0–5 V DC) corresponding to chamber temperature—enabling connection to chart recorders, PLCs, or SCADA platforms compliant with FDA 21 CFR Part 11 when paired with validated third-party software. No onboard password protection, electronic signature, or user-level access control is implemented; users intending to deploy the unit in regulated workflows must implement procedural controls (e.g., logbook entries, calibration verification logs) per internal SOPs.

Applications

• Bacterial and yeast cultivation under defined thermal regimes (e.g., Escherichia coli growth at 37 °C, Geobacillus stearothermophilus validation at 55–60 °C)
• Enzyme kinetic studies requiring tight thermal stability over extended timeframes (e.g., amylase, protease, or phosphatase activity assays)
• Stability testing of pharmaceutical excipients and diagnostic reagents per ICH Q1A(R2) guidelines
• Seed germination and plant tissue culture pre-incubation where CO₂ supplementation is unnecessary
• Environmental simulation for material biodegradability assessments (ISO 14855 series)
• Quality control of industrial fermentation media prior to inoculation

FAQ

Does the LRH150FN support CO₂ concentration control?
No. This model is a temperature-only incubator without gas mixing, humidification, or CO₂ sensing capabilities.
Is the unit suitable for sterile applications requiring ISO Class 5 environments?
No. It lacks HEPA filtration, positive pressure control, or laminar airflow—intended for general-purpose lab use rather than aseptic processing.
What is the recommended calibration interval?
Huitai recommends annual verification using NIST-traceable reference thermometers per ISO/IEC 17025 Clause 6.5; field calibration requires dual-point validation at 25 °C and 37 °C.
Can the incubator be stacked or installed in enclosed cabinetry?
No. Minimum rear clearance of 100 mm and side clearance of 50 mm are required for heat dissipation; installation in confined spaces may impair thermal performance and void warranty.
Are replacement shelves and accessories available through international distributors?
Yes—standard stainless steel shelves (two included), shelf supports, and optional casters are stocked by authorized Huitai regional partners in APAC, EMEA, and LATAM regions.