OK-PCT Series High-Pressure Saturated Steam Accelerated Aging Test Chamber
| Brand | OK Instruments |
|---|---|
| Origin | Imported |
| Manufacturer Type | Authorized Distributor |
| Price | USD 4,100 (FOB) |
| Internal Dimensions (Φ × Depth) | 30×45 cm to 60×65 cm |
| External Dimensions (W × H × D) | 65×100×65 cm to 85×120×90 cm |
| Temperature Range | 121 °C, 132 °C (143 °C optional) |
| Humidity | 100 % RH (saturated steam) |
| Operating Pressure (absolute) | 101.3 kPa + 0–200 kPa (300 kPa optional) |
| Temperature Uniformity | ≤ ±2 °C |
| Pressure/Temperature Monitoring | Dual digital gauges with real-time display |
| Safety Systems | Low-water cutoff, overpressure relief valve, overtemperature shutdown, auto-fill & manual fill modes |
| Power Supply | AC 220 V ±5 %, 50 Hz ±0.5 Hz |
Overview
The OK-PCT Series High-Pressure Saturated Steam Accelerated Aging Test Chamber is engineered for controlled, reproducible exposure of materials and electronic assemblies to elevated temperature and saturated steam pressure conditions—mimicking long-term environmental stress in compressed timeframes. Based on the physics of moisture diffusion under high partial pressure of water vapor, this chamber operates on the principle of Pressure Cooker Test (PCT), a standardized accelerated reliability methodology widely adopted in semiconductor packaging qualification (e.g., JESD22-A102, A110), IPC-9701, and MIL-STD-883 Method 1030. Unlike conventional thermal or humidity chambers, the OK-PCT achieves rapid saturation of internal microstructures—including die attach interfaces, wire bonds, and conformal coatings—by maintaining precise absolute pressure (up to 300 kPa abs) and temperature (up to 143 °C), thereby accelerating hydrolytic degradation, intermetallic growth, and delamination mechanisms. Its design prioritizes metrological traceability, process repeatability, and compliance-ready operation for R&D validation, pre-production screening, and quality assurance labs.
Key Features
- Automated water replenishment system with level-sensing circuitry ensures uninterrupted test continuity during extended cycles (e.g., 96–168 h PCT per JEDEC standards); low-water alarm triggers before critical depletion.
- ASME-certified safety relief valve integrated into the pressure vessel manifold, set to activate at user-configurable thresholds (default: 200 kPa abs), providing fail-safe overpressure protection aligned with ISO 5170-1 requirements.
- Dual-channel LED digital controller: independent PID-regulated temperature setpoint (±0.5 °C accuracy) and real-time absolute pressure readout (±1.5 kPa), both displayed simultaneously on a backlit interface with password-protected parameter locking.
- Steam quality optimization via automatic venting of non-saturated vapor during ramp-up phase—ensuring >99.5 % dryness fraction (per ASME PTC 19.2) for consistent condensation kinetics across test specimens.
- Monolithic silicone door gasket with compression-molded cross-section provides leak rate <1.0 × 10−6 mbar·L/s (helium leak tested), validated per ISO 10648-2 Class 2 criteria for hermeticity-critical applications.
- Self-calibrating pressure/temperature transducers with NIST-traceable documentation supplied with each unit; field verification ports available for third-party calibration audits.
Sample Compatibility & Compliance
The OK-PCT accommodates diverse sample geometries—including PCBs, IC packages (QFN, BGA, WLCSP), LED modules, medical sensors, and automotive ECUs—on two-tier stainless-steel racks (304 grade, electropolished). Its chamber volume range (35–65 L) supports IEC 60068-2-66, JEDEC JESD22-A102D, and IPC-SM-785A sample loading configurations without compromising thermal or pressure homogeneity. All electrical components comply with IEC 61000-6-2/6-4 EMC standards; pressure vessel construction adheres to PED 2014/68/EU Category II requirements. Optional factory-installed data logging meets FDA 21 CFR Part 11 audit trail specifications (electronic signature, change history, user access levels).
Software & Data Management
Optional PC-based control software (OK-LogPro v3.2) enables remote monitoring, automated report generation (PDF/CSV), and trend analysis of pressure-temperature profiles across multiple test runs. The system logs timestamped readings at 1-second intervals, stores ≥10,000 hours of historical data locally, and exports metadata compliant with ASTM E2911-13 for laboratory information management systems (LIMS). Calibration certificates include uncertainty budgets per ISO/IEC 17025:2017 Annex A.3.
Applications
- Qualification testing of moisture sensitivity levels (MSL) per J-STD-020 for surface-mount devices prior to reflow soldering.
- Evaluation of encapsulant adhesion strength and mold compound hydrolysis resistance in power electronics.
- Accelerated corrosion assessment of tin-plated connectors and PCB surface finishes under high-humidity stress.
- Reliability screening of MEMS packaging integrity and cavity seal performance.
- Validation of sterilization barrier properties for Class II medical device housings (ISO 11607-1).
FAQ
What pressure ranges are supported for standard versus custom configurations?
Standard models operate from ambient +0 to +200 kPa (gauge), equivalent to ~2.0 kgf/cm². Custom variants support up to +300 kPa (gauge) with reinforced vessel walls and enhanced safety interlocks.
Is the chamber compatible with nitrogen purge protocols for oxygen-sensitive samples?
Yes—optional inert gas inlet port (¼” NPT) allows pre-test nitrogen purging to reduce oxidative side reactions during high-temperature steam exposure.
How is temperature uniformity verified and documented?
Uniformity mapping is performed per ISO 17025-accredited procedures using nine calibrated PT100 sensors; as-delivered reports include spatial deviation charts and statistical confidence intervals (k=2).
Can the unit be integrated into an existing factory MES or SCADA system?
Modbus RTU (RS-485) and Ethernet/IP interfaces are available as factory options, enabling real-time parameter streaming and alarm forwarding to enterprise-level platforms.
