Yuelian PW-YTS-80-4 Temperature and Humidity Controlled Environmental Test Chamber

Overview

The Yuelian PW-YTS-80-4 is an upright, air-cooled temperature and humidity controlled environmental test chamber engineered for precision stability, long-term reliability, and compliance-driven validation workflows in R&D laboratories, quality control departments, and manufacturing facilities. Designed per IEC 60068-3-5 and aligned with ASTM D4332, ISO 17025, and JIS Z 8703 environmental conditioning standards, this chamber delivers reproducible thermal-hygrometric profiles across a wide operational envelope: −40 °C to +150 °C and 20–98 %RH. Its dual-loop PID-controlled system—separately regulating refrigeration, heating, and steam-based humidification—ensures minimal thermal lag and high fidelity to programmed setpoints. The chamber’s structural architecture integrates high-density polyurethane foam (≥30 kg/m³) and glass wool insulation to suppress heat transfer, while the dual 60 W circulation motors and adjustable multi-blade vane system guarantee uniform airflow distribution (<±1.5 m/s velocity variation) throughout the 80 L working volume.

Key Features

• Robust dual-stage climate control: Independent PID loops for temperature (±0.1 °C resolution) and relative humidity (±0.1 %RH resolution), with auto-tuning capability and 6 configurable parameter sets.
• High-integrity construction: Interior chamber fabricated from electropolished SUS#304 stainless steel; exterior finished with electrostatically applied industrial-grade powder coating on cold-rolled steel.
• Advanced 7-inch color touchscreen controller: Supports bilingual (English/Chinese) interface, real-time graphical curve display, program editing (up to 12 programs × 120 segments), and 999-cycle looping with segment linking and partial repeat functions.
• Imported critical components: Hermetic Tecumseh (France) compressors; R404A refrigerant (DuPont); ALCO (USA) dryers and oil separators;鹭工 (Japan) solenoid valves; Schneider (France) contactors; Omron (Japan) thermal relays; RAINBOW (Korea) overtemperature safeguards.
• Comprehensive safety architecture: Includes dual compressor overheat/overcurrent protection, high-pressure cut-off, dry-run prevention, fuseless overload breakers, and full-sheath terminal blocks compliant with UL 508A and IEC 61000-6-4 EMC requirements.
• Standardized access and serviceability: Left-hinged single door with recessed zero-backlash handle; triple-layer vacuum-insulated observation window; 50 mm diameter test port (left side) with stainless steel cover and silicone plug; integrated 5 W viewing lamp.

Sample Compatibility & Compliance

The PW-YTS-80-4 accommodates diverse sample geometries up to 10 kg per shelf, supported by two removable SUS#304 wire-grid shelves. Its internal dimensions (400 × 500 × 400 mm) enable testing of electronic assemblies, polymer specimens, pharmaceutical packaging, automotive components, and coated substrates under controlled stress conditions. The chamber meets key regulatory prerequisites for GLP and GMP environments: data integrity is preserved via non-volatile memory with power-fail recovery (retains active program state), audit-trail-capable event logging (optional firmware upgrade), and time-stamped alarm records. While not inherently 21 CFR Part 11 compliant out-of-the-box, the controller supports external Ethernet or RS485 connectivity for integration into validated LIMS or SCADA systems with appropriate configuration and procedural controls.

Software & Data Management

The embedded controller provides native USB export of runtime logs (CSV format), including timestamped temperature/humidity readings, alarm events, and program execution metadata. Optional PC software (supplied on request) enables remote monitoring, multi-chamber synchronization, report generation (PDF/Excel), and deviation analysis against user-defined tolerances. All stored data retain traceability to operator ID, session start/stop times, and firmware version. For regulated industries, optional firmware modules support electronic signatures, role-based access control (admin/operator modes), and encrypted data export—facilitating alignment with Annex 11 and ISO/IEC 17025 clause 7.7 requirements.

Applications

This chamber serves as a core platform for accelerated aging studies (e.g., IPC-9701, JEDEC JESD22-A108), thermal shock pre-conditioning prior to mechanical testing, humidity-induced corrosion screening (ASTM B117 adaptation), packaging permeability evaluation, battery thermal cycling (UN 38.3 Section 38.3.4), and stability testing of medical devices per ISO 11607-1. It is routinely deployed in third-party certification labs for IEC 60068-2-1 (cold), -2-2 (dry heat), -2-30 (damp heat cyclic), and -2-78 (damp heat steady-state) qualification protocols.

FAQ

What is the minimum ambient temperature required for stable operation?
The chamber requires an ambient environment between 5 °C and 28 °C to guarantee specified performance; operation outside this range may degrade temperature/humidity uniformity and extend stabilization times.
Can the chamber be integrated into a centralized lab monitoring network?
Yes—via standard RS485 Modbus RTU or optional Ethernet TCP/IP interface, enabling read-only telemetry and alarm forwarding to building management or MES platforms.
Is calibration documentation included with shipment?
A factory calibration certificate (traceable to NIM, China) is provided; users must perform periodic verification using NIST-traceable reference sensors per ISO/IEC 17025 clause 6.6.
What maintenance intervals are recommended for optimal longevity?
Condenser coil cleaning every 3 months (in dust-prone environments), refrigerant leak inspection annually, and humidity sensor recalibration every 6 months—per manufacturer-recommended PM schedule.
Does the chamber support ramp-soak-hold profiles with humidity modulation?
Yes—fully programmable multi-segment cycles allow independent ramp rates, soak durations, and RH setpoints at each segment, with seamless transitions and no manual intervention required.