DRETOP ZGC-150T Plant Growth Chamber

Overview

The DRETOP ZGC-150T Plant Growth Chamber is a precision-engineered environmental control system designed for reproducible, long-term plant physiology studies, photobiological assays, and microbiological cultivation under tightly regulated temperature and light conditions. Built upon a dual-mode thermal management architecture—combining Peltier-assisted heating with a hermetically sealed, eco-friendly R134a refrigeration circuit—the chamber maintains stable thermal setpoints across both illuminated and non-illuminated operational states. Its triple-side fluorescent illumination system delivers uniform photosynthetically active radiation (PAR) across the full visible spectrum (400–700 nm), enabling simulation of natural diurnal cycles through programmable day/night profiles. The unit complies with core design principles outlined in ISO 17025 for laboratory environmental equipment validation and supports GLP-compliant experimental workflows via audit-trail-capable parameter logging.

Key Features

• Triple-side fluorescent illumination with six-step intensity adjustment (0–12,000 lx), ensuring broad-spectrum PAR delivery and minimizing shadowing effects in 150 L working volume;
• Microprocessor-based 30-segment programmable controller with large backlit LCD interface; supports simultaneous independent scheduling of temperature and illuminance over 24-hour or multi-day cycles;
• Stainless steel interior chamber (304 grade) with removable, height-adjustable shelves and rounded internal corners for full cleanability and autoclave-compatible decontamination;
• Dual thermal regulation: Ni-Cr alloy heating elements paired with a low-noise scroll compressor and optimized axial airflow system—achieving ±0.5°C temperature fluctuation and ±1.5°C spatial uniformity per IEC 60068-3-5;
• Modular safety architecture including over-temperature alarm with audible/visual alert, power-fail memory retention, compressor start-delay protection, and automatic recovery after brownout events;
• Optional red/blue LED spectral customization (660 nm + 450 nm) available for targeted photomorphogenic research—aligned with USDA ARS protocols for controlled-environment horticulture.

Sample Compatibility & Compliance

The ZGC-150T accommodates standard Petri dishes, multi-well plates, tissue culture flasks (up to T175), hydroponic trays, and small potted specimens (max. height 70 cm). Its stainless steel chamber and non-porous gasketed door meet ISO 14644-1 Class 8 cleanroom compatibility requirements for low-particulate biological work. While humidity control is not integrated (requiring external humidification systems for hygrometric studies), the chamber’s sealed construction enables integration with third-party RH modules via optional 30 mm test port (RS485-enabled). All electrical components conform to IEC 61010-1 safety standards; refrigerant use complies with EU F-Gas Regulation (No. 517/2014) and EPA SNAP program criteria for zero ozone-depletion potential (ODP) agents.

Software & Data Management

The embedded controller logs timestamped temperature and illuminance values at user-defined intervals (1–60 min), storing up to 30 days of data internally. Optional RS485 interface enables bidirectional communication with LabVIEW™, MATLAB®, or custom SCADA platforms using Modbus RTU protocol. For regulatory environments, the system supports 21 CFR Part 11-compliant operation when paired with DRETOP’s optional secure firmware package—featuring role-based access control (three-tier password hierarchy), electronic signature capture, and immutable audit trail generation. Real-time trend visualization is accessible via the optional color touchscreen module, which also provides lamp life estimation alerts and configurable low-irradiance threshold warnings.

Applications

• Photoperiod-controlled seed germination and early-stage plant development (Arabidopsis, lettuce, rice, Brassica spp.);
• BOD₅ incubation per ASTM D5210-19, supporting wastewater treatment efficacy testing;
• Fungal and bacterial culture maintenance under standardized light-exposed conditions (e.g., Aspergillus niger sporulation studies);
• Phytochemical induction experiments requiring precise light quality modulation (e.g., anthocyanin accumulation under blue-enriched spectra);
• Pre-acclimation protocols for greenhouse-to-field transition trials in horticultural breeding programs;
• Teaching laboratories conducting inquiry-based botany and environmental physiology modules aligned with AP Biology and IB Environmental Systems curricula.

FAQ

Does the ZGC-150T support humidity control?
No—humidity is not actively regulated. Users requiring RH control must integrate an external humidifier/dehumidifier via the optional 30 mm test port.
Can the chamber operate continuously for extended periods?
Yes—designed for unattended 7×24 operation with thermal overload protection, compressor cycling safeguards, and EEPROM-based parameter retention.
Is calibration certificate included with shipment?
A factory-issued temperature calibration report (traceable to NIM, China) is provided; ISO/IEC 17025-accredited third-party calibration is available as an add-on service.
What is the expected service life of the fluorescent lamps?
Standard cool-white fluorescent tubes have a rated lifespan of 7,500 hours under continuous operation; LED upgrade kits (red/blue or full-spectrum) extend this to >25,000 hours.
Are custom shelving configurations supported?
Yes—DRETOP offers reinforced load-bearing shelves (up to 15 kg capacity), perforated airflow-enhancing trays, and vertical light-diffusing baffles upon request.