AnYuJie HWS-1250 Large-Capacity Temperature and Humidity Controlled Plant Growth Incubator

Overview

The AnYuJie HWS-1250 Large-Capacity Temperature and Humidity Controlled Plant Growth Incubator is an engineered environmental chamber designed for long-term, reproducible cultivation of photoperiod-sensitive plant specimens, tissue cultures, seed germination studies, and controlled-environment physiological experiments. It operates on a dual-control principle: independent regulation of air-jacketed heating and compressor-based refrigeration ensures stable thermal setpoints across the full 5–50 °C range, while ultrasonic humidification—fed from an external reservoir—delivers rapid, uniform moisture distribution without condensation risk or localized saturation. The chamber’s forced-air circulation system employs a stainless-steel ducted airflow path with precisely balanced centrifugal fans, minimizing thermal gradients and ensuring spatial temperature uniformity within ±1 °C throughout the entire 1250 L working volume. This architecture meets foundational requirements for GLP-compliant plant phenotyping, ISO 17025-aligned environmental simulation labs, and multi-week growth trials where diurnal cycling stability and inter-chamber repeatability are critical.

Key Features

• Air-jacketed heating system with programmable ramp/soak profiles, eliminating direct contact between heating elements and chamber walls to reduce thermal overshoot and improve setpoint recovery time.
• Hermetically sealed, original Tecumseh (France) fully enclosed compressor with high/low pressure protection circuitry and delayed startup logic to extend service life and prevent mechanical stress during power cycling.
• Ultrasonic humidifier integrated with external water reservoir—enabling continuous operation without internal tank refilling and reducing microbial proliferation risks associated with stagnant internal reservoirs.
• Dual-pane insulated door with magnetic gasket seal and low-emissivity inner glass layer, achieving enhanced thermal resistance and minimizing radiant heat loss during frequent access.
• Stainless-steel interior chamber and circulation ductwork—resistant to corrosion from repeated humidity exposure and compatible with routine decontamination using ethanol, hydrogen peroxide vapor, or validated biocidal agents.
• Comprehensive safety architecture including over-temperature cutoff, sensor fault detection (RTD redundancy monitoring), and automatic shutdown upon humidity sensor drift beyond ±8 %RH tolerance.

Sample Compatibility & Compliance

The HWS-1250 accommodates standard plant growth trays (up to 60 cm × 40 cm), multi-tier shelving systems (adjustable in 50 mm increments), and modular lighting fixtures (compatible with 0–10 V dimmable LED arrays). Its 1250 L internal volume supports simultaneous cultivation of >200 Arabidopsis thaliana pots or equivalent biomass density for monocot and dicot species under defined photoperiodic regimes. The unit complies with IEC 61000-6-3 (EMC emission standards) and IEC 61000-6-2 (immunity requirements). While not certified to UL 61010-1 or EN 61010-1 out-of-box, it is configured to meet essential safety clauses for laboratory use—including grounding continuity, insulation resistance (>2 MΩ), and leakage current (<0.75 mA)—and may be commissioned for GxP environments following site-specific IQ/OQ protocols.

Software & Data Management

The incubator integrates a 7-inch capacitive touchscreen HMI with embedded data logging (1-second sampling resolution, 30-day onboard storage). All temperature and humidity setpoints, real-time readings, alarm events, and maintenance timestamps are exportable via USB 2.0 as CSV files compliant with LIMS ingestion standards. Optional RS-485 Modbus RTU interface enables integration into centralized building management systems (BMS) or SCADA platforms. Audit trail functionality records user login/logout events, parameter modifications, and calibration actions—supporting basic 21 CFR Part 11 readiness when paired with network-authenticated user accounts and electronic signature workflows implemented at the facility level.

Applications

• Controlled-environment plant phenotyping: Quantitative assessment of genotype-by-environment interactions under standardized diurnal cycles (e.g., 16-h light / 8-h dark at 22 °C / 60 %RH).
• Seed viability and germination kinetics testing per ASTM D5517 and ISO 11268-1 protocols.
• In vitro micropropagation of horticultural crops requiring precise hygrometric control to suppress hyperhydricity.
• Pre-acclimatization chambers for tissue-cultured plantlets prior to greenhouse transfer.
• Long-duration abiotic stress simulation (drought, heat, chilling) with synchronized environmental perturbation logging.
• Support infrastructure for phytotron core facilities where chamber-to-chamber consistency must be maintained across multiple HWS-1250 units.

FAQ

What is the recommended maintenance interval for the external humidification reservoir?
Refill frequency depends on ambient water hardness and operational RH setpoint; however, full reservoir cleaning and descaling using 5% citric acid solution is required every 30 days under continuous 70–90 %RH operation.
Can the HWS-1250 be operated without active humidification?
Yes—the unit maintains temperature control independently of humidification; the 5–50 °C range remains fully functional even with the humidifier disabled or reservoir empty.
Is the compressor oil-sealed or hermetic?
It utilizes a hermetically sealed rotary compressor with no external oil reservoir or serviceable lubrication points—designed for maintenance-free operation over ≥15,000 hours MTBF.
Does the unit support external CO₂ enrichment integration?
No native CO₂ port is provided; retrofitting requires third-party manifold installation and validation per ISO 14644-3 cleanroom modification guidelines.
What is the maximum allowable load weight per shelf?
Each adjustable stainless-steel shelf is rated for 35 kg distributed load; total chamber payload must remain ≤120 kg to preserve airflow symmetry and thermal uniformity.