Hanuo PRX-1000A Intelligent Plant Growth Chamber

Overview

The Hanuo PRX-1000A Intelligent Plant Growth Chamber is a precision-engineered environmental simulation system designed for controlled plant physiology, photobiology, and long-term biological experimentation. It integrates independent regulation of temperature, relative humidity, and programmable photosynthetic photon flux (PPF)-equivalent illumination—enabling reproducible, ISO-compliant growth conditions across diverse experimental timelines. Based on dual-stage thermoelectric and refrigeration-assisted thermal management, the chamber maintains stable setpoints within tightly bounded deviations (±1.5 °C uniformity, ±1.0 °C fluctuation), while its balanced air circulation architecture ensures laminar, low-velocity airflow (<0.3 m/s) to prevent desiccation stress or mechanical disturbance to delicate seedlings and tissue cultures. The system conforms to core design principles outlined in ASTM E1823 (Standard Terminology Relating to Environmental Simulation) and supports GLP-aligned experimental protocols through deterministic control logic and traceable parameter logging.

Key Features

• Microprocessor-based PID temperature and humidity control with real-time feedback compensation and power-loss memory retention—ensuring uninterrupted experiment continuity after grid interruption.
• Five-level stepwise illumination control (20%, 40%, 60%, 80%, Hi), delivering up to 30,000 lux at the working plane using high-efficiency LED arrays with spectral stability (CCT 6500 K ±200 K, CRI >90) and minimal radiant heat transfer.
• Optimized ducted air distribution system with rear-mounted centrifugal blower and perforated baffle plates—achieving ≤±1.5 °C spatial temperature uniformity across the full 1000 L internal volume (W×D×H: 950×650×1650 mm).
• Dual-sensor redundancy for temperature (PT100 Class B) and humidity (capacitive polymer sensor, calibrated per ISO/IEC 17025) with automatic drift compensation and fault diagnostics.
• Compressor interlock with mandatory 3-minute restart delay to prevent mechanical stress and extend service life; integrated overtemperature and sensor-failure safeties comply with IEC 61000-6-2 EMC immunity requirements.
• Robust insulated construction (120 mm polyurethane foam, λ = 0.022 W/m·K) and double-glazed tempered glass door with anti-fog coating ensure thermal integrity and visual monitoring without condensation interference.

Sample Compatibility & Compliance

The PRX-1000A accommodates standard botanical trays (up to 600 mm × 400 mm), multi-tier shelving configurations (adjustable in 30 mm increments), and modular accessory mounts for CO₂ enrichment kits, root-zone temperature probes, or gas exchange sensors. Its operating envelope—0–50 °C, 30–95% RH, and 3,000–30,000 lux—is validated for applications including Arabidopsis thaliana phenotyping, rice tillering studies, fungal sporulation assays, and algal biomass production under diurnal light-dark cycles. The unit meets structural and electrical safety requirements per GB 4793.1–2007 (equivalent to IEC 61010-1) and supports audit-ready documentation for ISO 17025-accredited laboratories. Humidity control performance aligns with USP environmental monitoring thresholds for non-sterile botanical culture workflows.

Software & Data Management

Equipped with an embedded 7-inch capacitive touchscreen HMI running a deterministic real-time OS, the PRX-1000A enables intuitive programming of multi-segment cycles (up to 23 hours per segment, 99 total segments), with simultaneous scheduling of temperature, humidity, and light intensity profiles. All operational parameters—including actual vs. setpoint traces, compressor duty cycle, and sensor health status—are logged at user-defined intervals (1–60 min) to internal 4 GB flash storage. Data export is supported via USB 2.0 (CSV format) and optional RS485 Modbus RTU interface for integration into LabArchives, LabVIEW, or enterprise LIMS platforms. Audit trail functionality—including operator ID tagging, parameter change timestamps, and firmware version stamping—meets FDA 21 CFR Part 11 requirements when paired with external identity management systems.

Applications

• Controlled-environment phenotyping of crop genotypes under defined photoperiods and drought-mimicking humidity regimes.
• In vitro propagation of orchids and medicinal herbs requiring precise thermo-hygrometric staging during callus induction and shoot elongation.
• BOD₅ incubation per APHA Standard Methods 5210B, maintaining 20 °C ±0.5 °C and darkness for 5-day biochemical oxygen demand assays.
• Entomological rearing of Drosophila melanogaster or Tribolium castaneum under circadian-synchronized lighting (e.g., 12L:12D, 25 °C, 60% RH).
• Pre-acclimation studies for climate resilience modeling—exposing seedlings to incremental temperature ramping (e.g., +1 °C/day) combined with variable light quality.
• Validation of sterilization efficacy for horticultural substrates using moist-heat exposure protocols at 45–50 °C and >90% RH.

FAQ

What is the maximum sustainable illumination level at the lowest shelf position?
The chamber delivers ≥28,500 lux at the bottom shelf center (measured with calibrated lux meter, cosine-corrected sensor) when operating at Hi mode, with uniformity maintained within ±5% across the 600 mm × 400 mm active area.
Can the PRX-1000A operate continuously for 30 days without maintenance?
Yes—designed for unattended long-term operation, it features auto-defrost cycling, sealed refrigerant circuitry, and self-diagnostic routines that report consumable wear (e.g., filter saturation, compressor efficiency decay) prior to functional degradation.
Is third-party calibration certification available?
Hanuo provides factory calibration certificates traceable to NIM (National Institute of Metrology, China); optional UKAS-accredited calibration services are available through authorized regional partners upon request.
Does the unit support external CO₂ concentration control?
While not integrated by default, the PRX-1000A includes dedicated I/O ports and mounting brackets for aftermarket CO₂ modules (0–2,000 ppm range, ±30 ppm accuracy) compatible with its Modbus interface.
How is temperature uniformity verified during installation qualification (IQ)?
We supply a 9-point validation protocol (per ISO 14644-3 Annex B) with recommended sensor placement grid and acceptance criteria—supporting IQ/OQ documentation packages required for GxP environments.