YiHeng MGC-350HP LED Plant Growth Chamber

Overview

The YiHeng MGC-350HP LED Plant Growth Chamber is a precision-engineered environmental simulation system designed for controlled-conditions plant physiology, photobiology, seed germination, and long-term phenotyping studies. Built upon a dual-mode thermal management architecture, it delivers stable, reproducible temperature and humidity profiles under both illuminated and dark conditions—critical for circadian rhythm research and diurnal cycle modeling. Its triple-side LED illumination system provides uniform photosynthetic photon flux distribution across the entire growth volume, minimizing shadowing artifacts and enabling consistent photomorphogenic responses. The chamber operates on a microprocessor-controlled PID algorithm with real-time feedback from high-stability Pt100 sensors, ensuring tight regulation of ambient parameters without thermal overshoot or hysteresis.

Key Features

• Triple-side LED illumination array delivering 0–20,000 lx adjustable intensity in six discrete steps; spectral output optimized for chlorophyll absorption peaks (450 nm blue and 660 nm red dominant bands)
• Independent dual-range temperature control: 10–50 °C under illumination; 4–50 °C in darkness—enabling accurate simulation of nocturnal cooling and diurnal warming gradients
• Mirror-finish stainless-steel interior with seamless quarter-radius corners and removable, height-adjustable shelving for unrestricted cleaning and flexible sample layout
• Dual-stage refrigeration system featuring an imported hermetic compressor and eco-friendly R134a refrigerant, achieving low-noise operation (<55 dB(A)) and energy-efficient thermal cycling
• Integrated over-temperature safety cutoff circuit—hardware-independent from main controller—to guarantee fail-safe termination if setpoint deviation exceeds preset threshold
• Large backlit LCD display showing simultaneous real-time values for temperature, humidity, illuminance, and program status; intuitive menu-driven interface compliant with ISO/IEC 62366 usability standards

Sample Compatibility & Compliance

The MGC-350HP accommodates standard botanical growth vessels including Petri dishes, Magenta boxes, multi-well plates, hydroponic trays, and potted seedlings up to 1100 mm tall. Its internal volume (0.32 m³) supports ISO 554:2017-compliant humidity conditioning and maintains spatial uniformity per ASTM E104-20 (Standard Practice for Maintaining Constant Relative Humidity by Means of Aqueous Solutions). The chamber meets CE marking requirements for electrical safety (EN 61010-1) and electromagnetic compatibility (EN 61326-1). Optional CO₂ integration utilizes an NDIR infrared sensor calibrated per ISO 8573-1 Class 4 specifications, supporting GMP-aligned gas dosing protocols when paired with external CO₂ supply systems.

Software & Data Management

An optional RS485 serial interface enables bidirectional communication with laboratory data acquisition platforms (e.g., LabVIEW, MATLAB, or custom SCADA systems). Time-stamped parameter logs—including temperature, RH, light intensity, and alarm events—are exportable in CSV format with millisecond-resolution timestamps. Firmware supports GLP-compliant audit trails: all user-initiated parameter changes, program uploads, and manual overrides are recorded with operator ID, timestamp, and pre-/post-value deltas. When connected to networked infrastructure, the system can feed data into LIMS environments via Modbus RTU protocol, satisfying FDA 21 CFR Part 11 requirements for electronic records and signatures when deployed with appropriate validation documentation.

Applications

• Photoperiod-controlled studies of flowering time, phototropism, and shade avoidance responses in Arabidopsis, rice, maize, and model legumes
• Stress physiology experiments involving combined abiotic stressors (e.g., drought × high-light × elevated temperature)
• Seed viability and dormancy assays requiring precise moisture and light history tracking
• Microbial co-culture experiments with photosynthetic partners (e.g., cyanobacteria–plant root interactions)
• Pre-acclimation protocols for tissue culture explants prior to greenhouse transfer
• Validation of growth algorithms used in vertical farming control systems

FAQ

Does the MGC-350HP support continuous 24/7 operation?
Yes—the system is rated for uninterrupted duty cycles with compressor duty cycle management and redundant thermal protection.
Can humidity be maintained below 50% RH?
No—the humidification system is designed for 50–90% RH; dehumidification below this range requires external desiccant or refrigerant-based auxiliary units.
Is firmware update capability available via USB or network?
Firmware updates require RS485 connection and proprietary configuration software provided under YiHeng’s technical support agreement.
What is the typical service life of the LED arrays?
Rated at ≥50,000 hours L70 (lumen maintenance to 70% initial output) under nominal operating conditions.
Are calibration certificates traceable to national standards included?
Factory calibration reports (temperature, humidity, illuminance) are supplied with each unit; NIST-traceable calibration services are available as a paid option through authorized service centers.