Yuelian PW-CTH80-40A Energy-Efficient Programmable Temperature and Humidity Environmental Test Chamber
| Brand | Yuelian / PW |
|---|---|
| Origin | Guangdong, China |
| Model | PW-CTH80-40A |
| Chamber Type | Vertical |
| Cooling Method | Water-Cooled |
| Temperature Range | -40°C to +150°C |
| Humidity Range | 20% to 98% RH |
| Temperature Uniformity | ±2.0°C |
| Temperature Stability | ±2.0°C |
| Humidity Uniformity | ±3.0% RH |
| Humidity Stability | ±3.0% RH |
| Internal Dimensions (W×D×H) | 400 × 400 × 500 mm |
| Heating Power | 6 kW |
| Refrigerant | R404A (eco-friendly) |
| Compressor | Sanyo (Japan) |
| Expansion Valve | 鹭宫 (Rukou, Japan) |
| Controller | 7-inch color touchscreen with PID auto-tuning, 12 program groups / 120 segments |
| Safety Protections | Over-temperature, over-current, high-pressure, dry-burn, phase-loss, and compressor overheating protection |
Overview
The Yuelian PW-CTH80-40A is a programmable environmental test chamber engineered for precision stability, energy efficiency, and long-term reliability in demanding laboratory and industrial quality assurance environments. It operates on the principle of closed-loop thermodynamic control—integrating vapor-compression refrigeration, resistive heating, and steam-based humidification—to maintain highly reproducible temperature and humidity profiles across its full operational range. Designed specifically for accelerated aging, material stress screening, component validation, and compliance testing per international standards (e.g., IEC 60068-2, MIL-STD-810, GB/T 2423), the chamber delivers robust performance under continuous duty cycles while minimizing power consumption and pure water usage—key metrics for sustainability-conscious laboratories and production QA facilities.
Key Features
- Energy-optimized refrigeration architecture featuring a Sanyo (Japan) hermetic scroll compressor paired with a Rukou (Japan) electronic expansion valve, enabling dynamic refrigerant flow modulation to reduce heater and humidifier load during humidity stabilization phases.
- Modular control system with dual-stage safety logic: independent thermal cutoffs (Korean RAINBOW over-temperature protectors) and redundant compressor safeguards (dual overheat and overcurrent relays) ensure fail-safe operation during extended test cycles.
- Electro-mechanically isolated water and electrical pathways prevent leakage-induced short circuits and meet IEC 61000-6-4 EMC immunity requirements for laboratory-grade instrumentation.
- High-efficiency air circulation system: 90 W motor with extended shaft, multi-blade impeller, and adjustable louvered diffuser assembly ensures uniform airflow distribution and minimizes thermal stratification within the 400 × 400 × 500 mm stainless steel (SUS#304) working chamber.
- 7-inch full-color capacitive touchscreen controller with real-time graphical display of setpoint vs. actual temperature/humidity curves, 120-segment programmability, automatic resume after power interruption, and timestamped audit trail logging compliant with GLP/GMP documentation practices.
Sample Compatibility & Compliance
The PW-CTH80-40A accommodates a broad spectrum of non-hazardous solid and packaged samples—including printed circuit boards, polymer components, pharmaceutical packaging, automotive sensors, and battery modules—within its corrosion-resistant SUS#304 interior. Its temperature and humidity control fidelity (±0.5°C / ±1.0% RH stability under loaded conditions) supports testing protocols aligned with ISO 17025-accredited laboratories. The unit complies with CE marking directives (2014/30/EU EMC, 2014/35/EU LVD), meets RoHS II (2011/65/EU) material restrictions, and incorporates design elements compatible with FDA 21 CFR Part 11 data integrity expectations when used with validated software interfaces.
Software & Data Management
The embedded controller provides native RS-485 and optional Ethernet connectivity for remote monitoring and centralized fleet management via Yuelian’s proprietary LabControl Suite (Windows-based, supplied with unit). All program executions, alarm events, sensor readings, and system status logs are time-stamped and exportable in CSV format. Audit trails include user ID, parameter changes, start/stop timestamps, and fault codes—enabling traceability for internal audits or regulatory submissions. Optional firmware upgrades support future integration with MES/QMS platforms through Modbus TCP or OPC UA gateways.
Applications
This chamber is routinely deployed in electronics reliability labs for thermal cycling and damp heat testing (IEC 60068-2-30), in polymer R&D for hygrothermal aging studies, in medical device manufacturing for packaging validation (ASTM F1980), and in automotive Tier-1 suppliers for climatic stress screening of ADAS modules. Its rapid ramp rates (≤30 min from –40°C to +20°C, ≤60 min reverse, unloaded) and tight uniformity make it suitable for qualification-level testing where repeatability and inter-lab comparability are critical.
FAQ
What is the maximum sample loading capacity per shelf?
Each SUS#304 grid shelf supports up to 20 kg; two shelves are standard-equipped.
Is pure water required for humidification?
Yes—deionized or distilled water with conductivity <5 µS/cm is recommended to prevent mineral buildup in the stainless steel humidifier.
Can the chamber operate continuously at 98% RH and 85°C?
Yes—its optimized condensate management and anti-frost evaporator design enable stable operation across the full combined temperature–humidity envelope.
Does the controller support data export for regulatory submission?
Yes—CSV-formatted logs include all measured parameters, alarms, and user actions with ISO 8601 timestamps and are fully exportable without proprietary software.
What external utilities are required for installation?
380 VAC ±10%, 50/60 Hz, 30 A three-phase supply; chilled water inlet at 7–12°C (for water-cooled condenser); ambient operating environment: 5–28°C, ≤85% RH.
