SETH SE-IPX9K High-Temperature & High-Pressure Thermal Rain Test Chamber

Overview

The SETH SE-IPX9K High-Temperature & High-Pressure Thermal Rain Test Chamber is an engineered environmental simulation system designed to perform rigorous IPX9K-rated protection testing in accordance with IEC 60529, ISO 20653, and automotive-specific standards including ISO 16750-1, VW 80106, and GMW 3172. Unlike conventional rain test chambers, the SE-IPX9K replicates the extreme thermal-mechanical stress conditions encountered by automotive ECUs, lighting modules, sensor housings, and high-voltage battery enclosures during high-pressure hot-water jet exposure—such as underhood cleaning cycles or post-manufacturing validation washes. It operates on the principle of controlled, multi-angle, high-velocity water impingement at elevated temperatures (up to 90 °C) and pressures (up to 10 MPa), enabling precise reproduction of the standardized IPX9K test sequence: four nozzle orientations (0°, 30°, 60°, 90°), 30 seconds per position, at distances of 100–150 mm from the test specimen surface. The chamber integrates real-time thermal regulation, closed-loop flow control, and programmable turntable rotation to ensure spatially uniform, repeatable, and auditable test execution.

Key Features

• Integrated high-pressure water delivery system featuring dual-stage pumping: a primary booster pump coupled with a precision进口 high-temperature/high-pressure plunger pump (rated for continuous operation at ≥90 °C and ≥10 MPa)
• Programmable heated water reservoir (100 L capacity, temperature range ambient to 90 °C) with PT100-class temperature sensing and ±0.5 °C closed-loop PID control
• Four independently actuated, 304 stainless steel nozzles mounted on adjustable telescopic brackets—each calibrated for droplet size distribution (0.5–4.5 mm) and flow consistency (14–16 L/min total)
• Motorized rotating test platform (Φ400 mm, load capacity ≤20 kg) driven by a Japan-sourced geared servo motor with digital speed display and stable 5 ±1 r/min output
• Touchscreen programmable controller with embedded test profile library, real-time data logging (flow, pressure, temperature, duration), and event-triggered alarm outputs
• Robust chamber construction: SUS304L interior lining, double-layer galvanized outer shell with powder-coated finish, and reinforced silicone-sealed viewing window with integrated anti-fog LED illumination
• Automated water management: triple-stage filtration feed system, thermally insulated recirculation piping, optional auto-drain function, and manual/optional motorized windshield-wiper-style glass cleaning assembly

Sample Compatibility & Compliance

The SE-IPX9K accommodates a broad spectrum of electromechanical components requiring IPX9K validation—including but not limited to engine control units (ECUs), ADAS camera housings, headlamp assemblies, EV battery junction boxes, and industrial IoT enclosures. Its internal working volume (800 × 800 × 800 mm) supports standard mounting fixtures and custom jigs. All operational parameters—including nozzle positioning tolerance (±2 mm at 100/150 mm standoff), dwell time accuracy (±0.5 s), and thermal stability (±5 °C at 80 °C setpoint)—are traceable to manufacturer specifications and aligned with the measurement uncertainty requirements defined in ISO/IEC 17025-accredited test laboratories. The system fully satisfies the physical test conditions mandated by IEC 60529 Annex B (IPX9K), ISO 20653 Table 3, and the thermal cycling and jet impact criteria in VW 80106 Section 5.3.2.

Software & Data Management

The embedded SETH touchscreen controller runs firmware compliant with GLP/GMP data integrity principles. It records timestamped process variables—including water temperature, system pressure, flow rate, turntable RPM, and elapsed test time—at user-configurable intervals (1–60 s). Data export is supported via USB 2.0 to CSV or PDF report formats, with optional Ethernet connectivity for integration into centralized LIMS or MES platforms. Audit trails are retained for ≥10,000 test cycles, including operator login IDs, parameter modifications, and alarm events—fully satisfying FDA 21 CFR Part 11 electronic record requirements when deployed in regulated automotive Tier-1 supplier environments.

Applications

• Validation of ingress protection for automotive electronics subjected to high-pressure steam cleaning and under-hood thermal shock
• Qualification of lighting systems per ECE R112 and SAE J575 for resistance to thermal cycling combined with directional water jets
• Reliability screening of EV powertrain components (e.g., DC-DC converters, OBCs) against corrosion-induced failure after repeated hot-water exposure
• Development testing of ruggedized industrial sensors deployed in food processing, marine, or mining environments where sanitation protocols involve high-temp washdowns
• Supporting ISO/TS 16949 and IATF 16949 process validation through documented, repeatable environmental stress profiles

FAQ

What international standards does the SE-IPX9K chamber explicitly support?
It is configured and verified to execute test sequences per IEC 60529 (IPX9K), ISO 20653, ISO 16750-1:2006, VW 80106:2008, GMW 3172 (2007), QC/T 417.1–2001, and GB 4208.
Can the chamber operate continuously at 90 °C water temperature?
Yes—the heated reservoir, high-temp pump, and all wetted components (including 304 SS nozzles and PTFE-reinforced hoses) are rated for uninterrupted service at 90 °C, with thermal cut-off safety interlocks active at 95 °C.
Is turntable speed adjustable beyond the nominal 5 r/min?
The controller permits fine-tuning within a range of 1–10 r/min, though standard IPX9K compliance requires fixed 5 ±1 r/min per ISO 20653 Clause 14.3.
Does the system include calibration documentation?
Each unit ships with a factory calibration certificate covering PT100 sensor accuracy, pressure transducer linearity (0–12 MPa), and electromagnetic flow meter repeatability (±1.5% of reading), traceable to NIM (China) or equivalent national metrology institutes.
What maintenance intervals are recommended for long-term reliability?
Filter elements require replacement every 200 operating hours; high-pressure seals should be inspected quarterly; and full system performance verification (per ISO/IEC 17025 Annex C) is advised annually or after 1,000 test cycles.