Yilong YL-2236 Programmable Environmental Test Chamber
| Origin | Guangdong, China |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Country of Origin | China |
| Model | YL-2236 |
| Refrigerant | R404A/R507 |
| Internal Dimensions (W×H×D) | 40×50×40 cm to 100×100×80 cm |
| External Dimensions (W×H×D) | 93×131×81 cm to 160×187×132 cm |
| Volume | 80 L to 800 L |
| Temperature Range | –70 °C to +150 °C |
| Humidity Range | 20–98 %RH (optional low-humidity configuration down to 5 %RH) |
| Temp. Uniformity | ±0.5 °C |
| Humidity Uniformity | ±3 %RH |
| Temp. Stability | ±0.3 °C |
| Humidity Stability | ±2.5 %RH |
| Heating Rate | ~20 min (0 °C → 100 °C), ~60 min (–70 °C → 100 °C) |
| Cooling Rate | ~20 min (20 °C → 0 °C), ~90 min (20 °C → –70 °C) |
| Control System | PID + SSR/SCR bidirectional output with slope logic |
| Programming Capacity | 150 programs × 1500 segments |
| Safety Monitoring | 15-point real-time system diagnostics with fault logging and remediation guidance |
| Compliance | GB/T 2423, ISO 16750, ASTM D4332, ASTM D471, IEC 60068-2, UL 1598, EN 60068 |
Overview
The Yilong YL-2236 is a fully programmable environmental test chamber engineered for precise, repeatable simulation of temperature and humidity stress conditions across industrial R&D, quality assurance, and regulatory validation workflows. Based on dual-stage refrigeration architecture and high-fidelity PID-controlled thermal/hygrometric regulation, the chamber delivers stable, traceable environmental profiles compliant with international standards including IEC 60068-2, ISO 16750-4, ASTM D4332, and GB/T 2423 series. Its modular design supports five standard volume configurations (80–800 L), enabling scalable deployment from component-level qualification to full-system environmental endurance testing. The unit operates across a wide operational envelope: –70 °C to +150 °C temperature range and 20–98 %RH humidity range—with optional low-humidity variants extending control down to 5 %RH—making it suitable for accelerated aging, condensation resistance, thermal shock, and combined climate stress protocols.
Key Features
- Intelligent dual-stage refrigeration system: Single-stage air-cooled circuit for operation above –20 °C; two-stage cascade air-cooled system for sub–40 °C performance, utilizing environmentally compliant refrigerants R404A and R507.
- High-resolution touch interface: 7-inch LCD controller with bilingual (English/Chinese) GUI, supporting up to 150 multi-segment programs, 1500 total segments per program, and nested cycle structures with independent segment linking logic.
- Robust thermal management: SUS#304 stainless steel heating elements, surface-evaporation humidification with auto-refill and dry-run protection, and cryogenic dehumidification via freezing coil condensation.
- Optimized chamber integrity: Double-layer anti-sweat observation window with embedded defogging heater and high-lumen fluorescent lighting; seamless interior welds and PU/rockwool composite insulation (≥100 mm thickness) ensuring ±0.5 °C temperature uniformity and ±3 %RH humidity uniformity per IEC 60068-3-5.
- Comprehensive safety architecture: 15-point real-time monitoring—including compressor overload, refrigerant pressure deviation, overtemperature, phase loss, water shortage, and heater failure—with timestamped fault logging, automatic shutdown, and on-screen remediation prompts.
- Standardized connectivity: RS-232 serial interface for remote parameter upload/download and data logging; three programmable time-signal outputs (10 timing modes) for synchronized external actuator control (e.g., door interlocks, spray nozzles, or data acquisition triggers).
Sample Compatibility & Compliance
The YL-2236 accommodates a broad spectrum of physical specimens—from PCB assemblies and automotive ECUs to polymer packaging, lithium-ion battery modules, optical lenses, and medical device housings—within its five internal volume classes. All models meet structural and performance requirements for ISO/IEC 17025-accredited laboratories conducting environmental qualification per MIL-STD-810H Method 502.7 (temperature), Method 507.6 (humidity), and Method 511.7 (combined temperature/humidity). Chamber construction adheres to UL 1598 enclosure safety standards and EN 61000-6-2/6-4 EMC directives. Optional calibration certificates (traceable to NIM or NIST-equivalent national standards) and IQ/OQ documentation packages are available for GMP/GLP-regulated environments requiring audit-ready validation records per FDA 21 CFR Part 11 and EU Annex 11.
Software & Data Management
The embedded controller firmware supports full-cycle data logging at user-selectable intervals (1–600 seconds), storing temperature, humidity, setpoint deviation, and alarm status internally for ≥30 days. Raw logs export in CSV format via USB or RS-232 for integration into LIMS or statistical process control platforms (e.g., JMP, Minitab, LabVIEW). Optional PC-based software provides real-time remote monitoring, multi-chamber fleet management, automated report generation (PDF/Excel), and electronic signature-enabled deviation review workflows aligned with 21 CFR Part 11 audit trail requirements. All program edits, parameter changes, and manual overrides are time-stamped and attributed to operator ID, ensuring full procedural accountability.
Applications
- Electronics reliability testing: Thermal cycling of semiconductors, solder joint fatigue analysis under humidity bias, and moisture sensitivity level (MSL) preconditioning per J-STD-020.
- Automotive component validation: Climate endurance of infotainment displays, ADAS sensors, and EV battery enclosures per ISO 16750-4 and LV-124.
- Pharmaceutical packaging stability: Accelerated aging of blister packs and vial stoppers under ICH Q1A(R2) recommended conditions (40 °C/75 %RH, 30 °C/65 %RH).
- Materials science research: Hygrothermal degradation kinetics of composites, adhesives, and biodegradable polymers under controlled dew point trajectories.
- Quality assurance auditing: In-house verification of supplier environmental test reports against contractual specifications (e.g., AEC-Q200, IPC-9592).
FAQ
What is the maximum allowable ambient temperature for continuous operation?
The chamber is rated for ambient operation up to 30 °C at 60 %RH. For installations exceeding this, derating of cooling capacity and extended stabilization times apply.
Can the YL-2236 be validated for GLP-compliant studies?
Yes—when equipped with optional IQ/OQ documentation, NIST-traceable calibration, and Part 11–compliant software, it meets GLP Annex 11 and OECD 112 requirements for environmental test instrumentation.
Is remote monitoring supported over Ethernet or Wi-Fi?
Standard configuration includes RS-232 only; Ethernet or TCP/IP modules are available as factory-installed options with static IP assignment and HTTPS-based web interface.
What maintenance intervals are recommended for the refrigeration system?
Compressor oil and filter replacement every 24 months; refrigerant leak check and pressure calibration annually; humidifier tank cleaning weekly under continuous use.
Does the chamber support ramp-soak-hold profiles with variable rates?
Yes—the controller implements true slope-based programming with independent rate definition per segment (0.1–10 °C/min, 0.1–10 %RH/min), including dwell, transition, and conditional branching logic.
