Rust Inhibitor Grease Environmental Test Chamber – Yuelian TS-Series High-Low Temperature & Humidity Cycling Chamber
| Brand | Yuelian |
|---|---|
| Origin | Guangdong, China |
| Model | TS-80 / TS-150 / TS-225 / TS-408 / TS-800 / TS-1000 |
| Internal Dimensions (W×H×D, cm) | 40×50×40 (80 L) to 100×100×100 (1000 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 | −70 °C → 100 °C in ≤60 min |
| Cooling Rate | 20 °C → −70 °C in ≤90 min |
| Control System | PID + SSR/SCR bidirectional output with slope logic |
| Programmability | 150 programs × 1500 segments, 9999 cycles × 999 loops |
| Safety Monitoring | 15-point real-time fault detection with auto-diagnostic logging |
| Refrigeration | Twin-stage hermetic air-cooled system (R404A/R507) |
| Construction | SUS#304 stainless steel interior & exterior |
| Insulation | Rock wool + rigid polyurethane foam |
| Power Supply | AC 220 V / 380 V ±10 %, 50/60 Hz |
Overview
The Yuelian TS-Series Rust Inhibitor Grease Environmental Test Chamber is an engineered precision platform for evaluating the long-term stability and protective efficacy of rust-inhibiting greases, corrosion-preventive compounds, and other lubricating formulations under dynamically controlled thermal and hygrothermal stress conditions. Designed specifically for accelerated environmental aging studies, this chamber implements a dual-mode conditioning architecture—combining high-fidelity temperature control (−70 °C to +150 °C) with tightly regulated humidity cycling (20–98 % RH, optionally down to 5 % RH)—to replicate field-relevant degradation pathways such as condensation-induced hydrolysis, thermal oxidation, phase separation, and interfacial delamination. Its compliance-ready design supports standardized test protocols including ASTM D1748 (rust-preventive grease storage testing), ISO 9223 (corrosion classification of atmospheres), and MIL-STD-810H Method 507.6 (humidity exposure), enabling reproducible qualification of anti-corrosion performance across automotive, aerospace, defense, and industrial maintenance applications.
Key Features
- Hermetically sealed twin-stage refrigeration system using environmentally compliant R404A/R507 refrigerants, optimized for rapid thermal transitions and stable sub-zero operation (down to −70 °C).
- Intelligent PID + SSR/SCR bidirectional control with embedded slope logic, enabling precise ramp-and-soak profiles and seamless transition between temperature and humidity setpoints.
- SUS#304 stainless steel construction throughout interior and exterior chambers, coupled with multi-layer insulation (rock wool + rigid PU foam), ensuring thermal integrity and resistance to chemical vapor attack.
- Double-glazed, electrically heated observation window with anti-fog coating and high-lumen fluorescent lighting—designed for continuous visual monitoring without thermal leakage or condensation interference.
- Auto-recirculating deionized water generation system integrated with dry-run protection and overheat cutoff, eliminating manual refilling and minimizing mineral deposit accumulation in the humidifier.
- Comprehensive safety architecture featuring 15 independent real-time diagnostics—including refrigerant pressure monitoring, heater overtemperature lockout, door interlock verification, and power anomaly detection—with timestamped fault logging and actionable remediation guidance.
- Expandable programmability supporting up to 150 multi-segment programs (1500 total segments), nested loop structures (9999 × 999 cycles), and user-defined PID tuning per zone for application-specific response optimization.
Sample Compatibility & Compliance
The TS-Series accommodates diverse sample configurations—from bulk grease samples in ASTM D1748-compliant trays and coated metal coupons (e.g., ASTM A242 steel, ASTM B117 salt-spray substrates) to instrumented bearing assemblies and packaged components. Its uniform temperature distribution (±0.5 °C) and humidity homogeneity (±3 % RH) meet the spatial consistency requirements of ISO 17025-accredited laboratories. The chamber’s operational envelope satisfies critical regulatory benchmarks: it supports GLP-compliant data traceability when paired with optional RS-232/485 interfaces and audit-trail-enabled software; aligns with FDA 21 CFR Part 11 requirements for electronic records through configurable user access levels and digital signature integration; and enables validation per IQ/OQ/PQ protocols for GMP environments in pharmaceutical and medical device manufacturing support labs.
Software & Data Management
Standard controller firmware includes built-in data logging at user-selectable intervals (1 s to 60 min), exportable via USB or serial interface in CSV format. Optional PC-based software provides real-time remote monitoring, multi-chamber synchronization, automated report generation (PDF/Excel), and statistical process control (SPC) charting—including Cp/Cpk calculation for batch-to-batch consistency analysis. All logged parameters—including chamber setpoint, actual temperature/humidity, refrigeration status, alarm history, and PID output duty cycles—are time-stamped with millisecond resolution and stored with immutable metadata (operator ID, program name, cycle number). Audit trail functionality complies with ICH E6(R3) and ISO/IEC 17025:2017 Annex A.2.12 for laboratory information management systems (LIMS) interoperability.
Applications
- Accelerated corrosion resistance evaluation of rust-inhibiting greases per ASTM D1748, ASTM D665, and JIS K2220.
- Thermal aging and oxidative stability assessment of petroleum-based and synthetic lubricants under cyclic humidity exposure.
- Qualification of packaging integrity for moisture-sensitive anti-corrosion products during storage and transit simulation.
- Environmental stress screening (ESS) of electro-mechanical assemblies coated with protective greases prior to field deployment.
- Validation of shelf-life claims for military-grade preservation compounds under MIL-PRF-15072 and MIL-PRF-21045 specifications.
- Supporting R&D of biodegradable rust preventives by quantifying hydrolytic degradation kinetics under controlled RH/temperature gradients.
FAQ
What standards does the TS-Series chamber support for rust inhibitor testing?
It is fully compatible with ASTM D1748, ISO 9223, MIL-STD-810H Method 507.6, and JIS Z 2371, with optional calibration certificates traceable to NIST or CNAS reference standards.
Can the chamber operate continuously at −70 °C and 98 % RH simultaneously?
No—extreme low-temperature and high-humidity conditions are mutually exclusive due to thermodynamic constraints; the controller enforces safe operating boundaries per ASHRAE Fundamentals Chapter 18.
Is external water purification required for the humidification system?
No—the integrated deionization module accepts municipal tap water directly and maintains conductivity below 5 µS/cm; periodic cartridge replacement is recommended every 6 months under continuous operation.
How is temperature and humidity uniformity validated?
Uniformity is verified using a 9-point sensor array per IEC 60068-3-5, with results documented in the factory acceptance test (FAT) report supplied with each unit.
Does the system support third-party SCADA integration?
Yes—Modbus RTU (RS-485) and Ethernet/IP protocols are available as factory-installed options, enabling direct connectivity to Siemens PCS7, Rockwell FactoryTalk, or Schneider EcoStruxure platforms.
