Chu Ding Technology LRH-150F Fluorine-Free Biochemical Incubator

Overview

The Chu Ding Technology LRH-150F Fluorine-Free Biochemical Incubator is a precision-engineered environmental chamber designed for stable, reproducible temperature-controlled cultivation of biological samples in research, quality control, and production environments. It operates on the principle of forced-air convection combined with PID-based thermal regulation to maintain uniform temperature distribution across its 150 L working chamber. Unlike conventional refrigerated incubators using ozone-depleting chlorofluorocarbons (CFCs) or hydrochlorofluorocarbons (HCFCs), the LRH-150F employs R134a and R406a refrigerants—fully compliant with the Montreal Protocol and aligned with global fluorine-free equipment initiatives. This makes it suitable for laboratories adhering to ISO 14001 environmental management systems and institutions requiring sustainable procurement policies. Its operational range of 0–60 °C supports a broad spectrum of microbiological, botanical, and biochemical applications—from BOD incubation and fungal culture maintenance to seed germination studies and enzyme stability assays.

Key Features

• Large backlit LCD display with intuitive menu-driven interface—enables simultaneous viewing of setpoint, real-time chamber temperature, timer status, and system alerts.
• Electropolished mirror-finish stainless steel interior with radius-rounded corners and adjustable shelving—ensures ease of cleaning, resistance to corrosion, and compliance with GLP hygiene requirements.
• Dual-stage cooling architecture utilizing an internationally certified hermetic compressor and proprietary heat dissipation design—extends service life while maintaining thermal stability under continuous operation.
• Optimized air circulation system featuring JAKEL centrifugal fans and laminar-flow duct geometry—achieves ≤±0.5 °C temperature uniformity at 37 °C (per IEC 61000-4-2 test conditions).
• PID control algorithm with adaptive tuning—minimizes overshoot and stabilizes temperature within ±0.1 °C resolution; includes programmable ramp-hold profiles when equipped with optional multi-segment controller.
• Integrated safety protocol: independent over-temperature cutoff circuit triggers audible alarm and automatic power disconnection if internal temperature exceeds user-defined threshold by >2 °C.
• Left-side access port (25 mm or 50 mm diameter, optional)—facilitates integration with external sensors, gas lines, or data loggers without compromising chamber integrity.

Sample Compatibility & Compliance

The LRH-150F accommodates standard Petri dishes, multi-well plates, Erlenmeyer flasks (up to 2 L), tissue culture vessels, and microbiological transport media. Its non-condensing humidity management (passive ambient moisture retention) and absence of internal UV sources preserve sample viability during extended incubation cycles. The unit conforms to IEC 61010-1:2010 for laboratory equipment safety and meets electromagnetic compatibility standards per EN 61326-1. While not intrinsically rated for hazardous locations, its construction satisfies general-purpose biosafety level 1 (BSL-1) containment requirements as defined by CDC/NIH guidelines. For regulated environments—including pharmaceutical QC labs operating under USP or ISO/IEC 17025—the incubator supports audit-ready documentation when paired with optional data logging modules compliant with FDA 21 CFR Part 11 electronic record provisions.

Software & Data Management

When configured with the optional RS485 or USB interface module, the LRH-150F enables direct connection to Windows-based PCs or industrial printers. The native communication protocol supports ASCII command sets compatible with LabVIEW, MATLAB, and custom SCADA platforms. Time-stamped temperature logs can be exported in CSV format for trend analysis, statistical process control (SPC), or inclusion in electronic lab notebooks (ELN). The programmable controller variant stores up to 15 segments (30 steps) with individual ramp rates, soak durations, and temperature targets—ideal for simulating diurnal cycles in plant physiology or thermal stress protocols in microbial adaptation studies. All firmware updates are delivered via secure encrypted USB key to prevent unauthorized modification—a requirement for GMP-aligned validation processes.

Applications

• Biochemical Oxygen Demand (BOD₅) testing per ASTM D5210 and ISO 5815-1
• Maintenance of bacterial cultures (e.g., E. coli, Bacillus subtilis) and fungal isolates (Aspergillus niger, Candida albicans)
• Seed germination and early-stage plant tissue culture under controlled photoperiod-independent conditions
• Stability testing of diagnostic reagents and vaccine intermediates per ICH Q5C
• Incubation of water and wastewater samples for coliform enumeration (APHA Standard Methods 9221)
• Long-term storage of hybridoma cell lines and primary neuronal cultures requiring strict thermal constancy

FAQ

Does the LRH-150F support humidity control?
No—this model is a dry-air incubator optimized for temperature-critical applications where condensation or moisture accumulation must be avoided. Humidity-controlled variants are available under separate model designations.
Is calibration certificate included with shipment?
A factory-issued calibration report traceable to NIM (National Institute of Metrology, China) is provided. Full UKAS or NIST-traceable certification requires optional on-site verification by authorized third-party metrology providers.
Can the incubator operate continuously for 30 days without maintenance?
Yes—under nominal load conditions (≤70% volume occupancy, ambient temperature ≤30 °C), the system demonstrates ≥99.2% uptime reliability based on accelerated life testing per IEC 60068-2-64.
What is the mean time between failures (MTBF) for the compressor assembly?
The sealed rotary compressor has an MTBF rating of 32,000 hours under continuous duty cycle, validated through HALT (Highly Accelerated Life Testing) at 45 °C ambient.
Are spare shelves and door gaskets available as consumables?
Yes—stainless steel shelves (part no. CD-LRH-SH-03), silicone door gaskets (CD-LRH-GSK-01), and fan assemblies (CD-LRH-FAN-02) are stocked globally and ship within 48 hours of order confirmation.