SH-60 Advanced Corrosion Environmental Test Chamber for Telecommunication Power Systems
| Brand | OEM / Custom Brand |
|---|---|
| Origin | Imported |
| Manufacturer Type | Authorized Distributor |
| Salt Solution Temperature | 35 °C ±1 °C (NSS/ACSS) or 50 °C ±1 °C (CASS) |
| Salt Concentration | 5% NaCl (w/v) or 5% NaCl + 0.26 g/L CuCl₂·2H₂O (CASS) |
| Compressed Air Pressure | 1.00 ±0.01 kgf/cm² |
| Fog Collection Rate | 1.0–2.0 mL/80 cm²/h (measured over ≥16 h, arithmetic mean) |
| pH of Salt Solution | 6.5–7.2 (NSS) or 3.0–3.2 (CASS) |
| Internal Chamber Dimensions (W×D×H) | 90 × 60 × 50 cm |
| External Dimensions (W×D×H) | 141 × 88 × 128 cm |
| Temperature Range | −20 °C to 80 °C |
| Humidity Range | 20–98% RH |
| Temp. Resolution/Uniformity | ±0.1 °C / ±1.0 °C |
| RH Resolution/Uniformity | ±0.1% RH / ±3.0% RH |
| Temp. Control Accuracy/Stability | ±1.0 °C / ±0.5 °C |
| RH Control Accuracy/Stability | ±2.0% RH / ±2.0% RH |
| Pressure Tank Temp. | 47 °C ±1 °C (NSS/ACSS) or 63 °C ±1 °C (CASS) |
| Controller | Full-color LCD touch interface with real-time curve logging |
| Programmable Profiles | 140 patterns, 1400 steps, up to 99 repeats per pattern |
| Step Duration Range | 0–999 h 59 min |
Overview
The SH-60 Advanced Corrosion Environmental Test Chamber is a precision-engineered salt spray test system specifically designed for accelerated corrosion evaluation of telecommunication power supply units, rectifiers, DC distribution panels, and associated metallic and coated components under standardized electrochemical stress conditions. It operates on the fundamental principles of controlled saline aerosol generation—where atomized sodium chloride (or copper-accelerated chloride) solution is delivered under regulated pressure and temperature to simulate aggressive coastal, industrial, or de-icing salt environments. The chamber integrates dual-test capability for both Neutral Salt Spray (NSS, ASTM B117, ISO 9227) and Copper-Accelerated Acetic Acid Salt Spray (CASS, ASTM B368) protocols, enabling comparative lifetime prediction of protective coatings, plating integrity, and terminal corrosion resistance in telecom infrastructure deployed across diverse climatic zones. Its extended thermal range (−20 °C to 80 °C) and humidity control (20–98% RH) further support hybrid environmental stress screening—such as temperature-humidity-salt fog cycling—per IEC 60068-2-52 and Telcordia GR-1089-CORE requirements.
Key Features
- Triple-mode operational flexibility: NSS, ACSS (Acetic Acid Salt Spray), and CASS testing within a single chamber architecture.
- High-fidelity digital control system featuring a full-color LCD touchscreen with embedded data logging—capable of recording temperature, humidity, and chamber pressure profiles continuously for audit-ready traceability.
- Programmable multi-segment environmental profiles: Supports up to 140 independent test patterns, each containing up to 1400 definable steps, with repeat loops (up to 99 cycles per step) to replicate real-world duty cycles including dry-off, condensation, and salt exposure phases.
- Stable fog generation via precision-machined nozzles and saturated air pre-heating; calibrated collection rate (1.0–2.0 mL/80 cm²/h) verified per ASTM B117 Annex A1.
- Independent pressure tank heating control ensures consistent saturation temperature (47 °C ±1 °C for NSS; 63 °C ±1 °C for CASS), critical for reproducible fog droplet size distribution and deposition uniformity.
- Corrosion-resistant chamber construction using high-grade PVC-coated steel and acid-resistant glass viewing window; integrated overflow drainage and corrosion-proof internal plumbing.
Sample Compatibility & Compliance
The SH-60 accommodates full-size telecommunication power systems—including 19-inch rack-mounted rectifier modules, battery management units, and DC busbars—within its 270 L internal volume (90 × 60 × 50 cm). Fixtures and non-metallic support stands are supplied to ensure optimal sample orientation (15–30° from vertical) per ISO 9227. All operational parameters—including pH verification (using calibrated pH meters traceable to NIST standards), salt concentration validation (via conductivity or gravimetric analysis), and fog collection calibration—are aligned with ISO/IEC 17025-compliant laboratory practice. The system meets functional requirements of ASTM B117, ASTM B368, JIS Z2371, GB/T 2423.17, and Telcordia GR-1089-CORE Section 4.5.2 for environmental durability validation of telecom hardware.
Software & Data Management
The embedded controller supports CSV export of time-stamped environmental logs (temperature, RH, pressure, elapsed time) directly to USB storage. Optional Ethernet or RS-485 interfaces enable integration into centralized lab monitoring platforms compliant with FDA 21 CFR Part 11 (when paired with validated third-party software). Audit trails record operator login, profile activation, parameter modifications, and alarm events—including door-open duration and temperature excursion thresholds—with timestamped digital signatures. Data retention exceeds 30 days onboard, and all logged curves are exportable without proprietary codec dependencies.
Applications
- Accelerated corrosion life assessment of zinc-nickel, tin, and chromium-plated connectors used in DC power distribution.
- Validation of conformal coating performance on printed circuit boards (PCBs) in telecom rectifier assemblies.
- Comparative evaluation of aluminum alloy housing anodization quality under cyclic salt-humidity-temperature stress.
- Qualification testing of grounding lugs, busbar joints, and cable termination hardware per IEC 61000-6-4 and EN 55032 immunity frameworks.
- Supporting GLP-compliant reliability reporting for CE marking, NEBS Level 3 certification, and ITU-T L.1200 environmental compliance documentation.
FAQ
What salt spray standards does the SH-60 support?
It fully complies with ASTM B117 (NSS), ASTM B368 (CASS), ISO 9227, JIS Z2371, and GB/T 2423.17, with programmable temperature, pH, and collection rate settings pre-configured for each standard.
Can the chamber perform temperature-humidity-salt fog cycling?
Yes—the controller supports multi-step programs that sequentially alternate between salt fog exposure, high-humidity soak, dry-out phases, and low-temperature conditioning, meeting IEC 60068-2-52 test severity levels 1–5.
Is pH calibration of the salt solution automated?
No—pH adjustment and verification must be performed manually prior to test initiation using certified buffer solutions and a calibrated pH meter; the system includes dedicated ports for solution sampling and pH probe insertion.
What maintenance intervals are recommended for long-term repeatability?
Daily: Visual inspection of nozzle clogging and solution level. Weekly: Cleaning of saturator tank and replacement of filtered compressed air desiccant. Quarterly: Calibration verification of temperature/RH sensors against NIST-traceable references.
Does the SH-60 meet regulatory requirements for GMP or ISO 13485 environments?
While the hardware itself is not certified, its data logging architecture, user access controls, and audit trail functionality support validation under ISO 13485 and EU Annex 11 when implemented within a qualified laboratory QMS framework.
