Chuanheng Instrument PGX-1000C Large-Capacity Plant Growth Chamber

Overview

The Chuanheng Instrument PGX-1000C is a large-capacity, programmable plant growth chamber engineered for precision environmental simulation in academic research, agricultural biotechnology, and pharmaceutical botany laboratories. It operates on the principle of active climate control—integrating independent regulation of temperature, photoperiod, light intensity, and air circulation—to replicate natural diurnal cycles and controlled abiotic stress conditions. Unlike basic incubators, the PGX-1000C employs a triple-side LED illumination architecture with full-spectrum white LEDs (400–700 nm PAR range), enabling quantitative photosynthetic photon flux density (PPFD)-correlated irradiance delivery. Its 1000 L stainless-steel interior chamber—constructed with triple-layer vacuum-insulated tempered glass and reflective low-emissivity coating—ensures thermal stability and optical efficiency critical for long-term phenotyping, seed germination assays, tissue culture propagation, and controlled-environment physiology studies.

Key Features

• Triple-side high-uniformity LED lighting system delivering up to 22,000 lux at chamber center; adjustable in five discrete intensity levels via microprocessor interface
• Programmable multi-segment controller supporting up to 30 independent time–temperature–light profiles per day, with separate day/night parameter assignment
• Advanced PID-based temperature regulation with ±1 °C fluctuation and ±1 °C spatial uniformity across the full working volume
• Optimized laminar airflow design using rear-mounted centrifugal fans and front/rear baffle ducting to maintain gentle, non-turbulent circulation and eliminate hot/cold spots
• Dual safety architecture: hardware-level over-temperature cutoff and sensor fault detection with audible/visual alarm and automatic shutdown
• Intelligent power management including brownout memory retention and real-time clock-based time compensation during power interruption
• Optional accessories include full-spectrum supplemental grow lamps (660 nm red + 450 nm blue peak), UV-blocking opaque lamp shrouds, internal GFCI-protected AC outlets, and ozone-free UV-C sterilization modules

Sample Compatibility & Compliance

The PGX-1000C accommodates diverse biological specimens requiring photoperiodic control—including Arabidopsis thaliana seedlings, rice callus cultures, fungal sporulation plates, insect pupation trays, and multi-tiered hydroponic racks. Its stainless-steel 304 interior, seamless welded corners, and smooth-radius edges meet ISO 14644-1 Class 8 cleanroom compatibility standards for low-particulate environments. While not certified to GLP or FDA 21 CFR Part 11 out-of-the-box, the device supports audit-ready operation when paired with validated SOPs and external electronic lab notebook (ELN) integration. All electrical components comply with IEC 61000-4 electromagnetic compatibility directives and GB 4793.1–2007 (China’s equivalent to IEC 61010-1) for laboratory equipment safety.

Software & Data Management

The PGX-1000C features an embedded 7-inch capacitive touchscreen HMI running a deterministic real-time OS. Logged parameters—including chamber temperature (dual-sensor redundancy), setpoint history, light-on/off timestamps, and cumulative illumination dose—are stored internally for ≥30 days and exportable via USB 2.0 to CSV format. Optional Ethernet/Wi-Fi connectivity enables remote monitoring through Chuanheng’s LabLink™ web dashboard (HTTPS-secured), supporting role-based user access, configurable alert thresholds (email/SMS), and integration with enterprise LIMS via RESTful API. Data integrity safeguards include write-protected logs, timestamped operator ID tagging, and tamper-evident file hashing—aligning with ALCOA+ principles for regulated botanical research workflows.

Applications

• Controlled-environment phenotyping of crop mutants under defined photothermal regimes (e.g., vernalization response, shade avoidance)
• Standardized seed germination testing per ISTA Rule 5 and AOSA Guidelines, including light-dependent species (Lepidium sativum, lettuce)
• Secondary metabolite induction studies in medicinal plants (e.g., artemisinin in Artemisia annua under high-intensity blue light)
• Insect developmental biology—Drosophila eclosion timing, Tribolium castaneum pupal maturation—under programmable circadian entrainment
• Microbial photobioreactor pre-conditioning and algal biomass optimization trials
• Pre-clinical botanical drug stability assessment per ICH Q1A(R3) guidelines using accelerated light exposure protocols

FAQ

What is the maximum PAR output achievable with the standard LED configuration?
The PGX-1000C delivers up to ~450 µmol·m⁻²·s⁻¹ PPFD at chamber center under Level 5 illumination, calibrated using NIST-traceable quantum sensors.
Can humidity be controlled on this model?
The base PGX-1000C does not include active humidification or dehumidification; however, optional integrated ultrasonic humidifiers (0–95% RH, ±3% accuracy) and Peltier-based dryers are available as field-upgradable modules.
Is the chamber suitable for BSL-2 applications?
While the sealed construction and smooth interior support biosafety practices, BSL-2 compliance requires third-party validation of HEPA filtration, negative pressure differentials, and leak testing—none of which are factory-installed on this model.
How is temperature uniformity verified across the 1000 L volume?
Uniformity is validated per ASTM E2874–19 Annex A2 using nine calibrated PT100 probes placed at standardized locations (corners, center, mid-height); all reported values fall within ±1 °C tolerance.
Does the controller support external sensor inputs for custom monitoring?
Yes—the rear I/O panel includes four isolated analog inputs (0–5 V / 4–20 mA) compatible with external CO₂, RH, or PAR sensors, configurable via LabLink™ software.