Yuelian YL-9926C IPX5/IPX6 Rain Test Chamber

Overview

The Yuelian YL-9926C Rain Test Chamber is a precision-engineered environmental test system designed to perform standardized ingress protection (IP) rating verification for electrical and electronic enclosures in accordance with IEC 60529, GB 4208, and GB/T 2423. It implements the physical principles of controlled water jet impact testing—specifically simulating exposure to low-pressure (IPX5) and high-pressure (IPX6) water jets—to evaluate the effectiveness of enclosure sealing against water penetration under defined spatial, volumetric, and temporal conditions. Unlike general-purpose humidity or spray chambers, the YL-9926C delivers repeatable, metrologically traceable test conditions through dual independent hydraulic circuits, calibrated flowmetering, and fixed-distance nozzle positioning. Its architecture supports both static and rotational sample configurations, enabling comprehensive assessment of complex geometries across industrial control panels, outdoor lighting fixtures, automotive ECUs, and consumer electronics housings.

Key Features

• Stainless steel construction: Entire chamber body and all wetted components—including nozzles, manifolds, and piping—are fabricated from SUS304 stainless steel for long-term corrosion resistance and compliance with cleanroom-grade maintenance protocols.
• Dual-circuit hydraulic design: Separate high-flow (IPX6) and medium-flow (IPX5) pump systems operate independently, eliminating cross-contamination risk and ensuring stable pressure delivery during concurrent or sequential test cycles.
• Precision flow regulation: Two calibrated flowmeters (0–1000 L/h and 1–10 m³/h ranges) enable real-time verification of volumetric discharge rates per ISO 5167 and ASTM D1293 traceability standards.
• Fixed-distance test geometry: Nozzle-to-sample distance is mechanically constrained within 2.5–3.0 m, meeting the positional tolerance requirements specified in Clause 14.2.5 of IEC 60529 for reproducible jet impact angles and kinetic energy distribution.
• Motorized turntable: Integrated 360° rotating platform (load capacity ≥ 50 kg) ensures uniform exposure of all enclosure surfaces without manual repositioning—critical for validating asymmetrical or multi-port enclosures.
• Full-spectrum safety integration: Leakage current protection, overpressure shutoff valves, emergency stop circuitry, and grounded 5-conductor power interface comply with IEC 61000-4-5 surge immunity and EN 60204-1 machinery safety directives.

Sample Compatibility & Compliance

The YL-9926C accommodates samples up to 1.5 m in height and 1.2 m in width on its motorized turntable, with optional custom mounting fixtures available for oversized or irregularly shaped devices. It supports full IPX5 and IPX6 validation per the second digit of the IP code, including mandatory dwell time calculation based on projected surface area (1 min/m², minimum 3 min). The system satisfies audit-ready documentation requirements for ISO/IEC 17025-accredited laboratories and supports GLP-compliant test record generation when paired with external data loggers. All mechanical and hydraulic calibrations are referenced to national metrology institute-traceable standards (e.g., CNAS-certified flow calibration rigs), and the chamber’s operational envelope is validated annually per IEC 61000-4-29 periodic verification guidelines.

Software & Data Management

While the YL-9926C operates via hardware-based analog controls (mechanical timers, analog pressure gauges, manual valve actuation), it is fully compatible with third-party digital data acquisition systems. Optional RS-485 or 4–20 mA analog outputs can be integrated to feed real-time flow, pressure, and elapsed time signals into SCADA platforms or LIMS environments. For regulated industries—including medical device manufacturing (FDA 21 CFR Part 820) and aerospace component qualification (SAE AS9100)—the system supports paper-based or electronic test logs compliant with 21 CFR Part 11 when used with validated electronic signature workflows. Calibration certificates, test reports, and maintenance logs are maintained in accordance with ISO/IEC 17025 clause 7.7 and IEC 60068-1 Annex B documentation requirements.

Applications

• Validation of outdoor-rated LED luminaires (DIN EN 60598-1, EN 60529)
• Pre-certification testing for automotive ECU housings (ISO 20653, SAE J1937)
• Quality assurance of industrial HMIs and PLC enclosures (IEC 61439, UL 50E)
• Reliability screening of consumer electronics (smartphones, wearables, IoT gateways) prior to IP67/IP68 secondary sealing
• Research and development of gasket materials, conformal coatings, and molded elastomeric seals
• Third-party certification lab testing for CE marking, CCC, and KC mark submissions

FAQ

Does the YL-9926C support automated test sequencing for multiple IP levels?

No—it is a manually operated, dual-circuit chamber requiring operator-initiated mode selection (IPX5 or IPX6), timer activation, and turntable engagement. Fully automated sequencing requires integration with external programmable logic controllers.
Can the chamber be used for IPX4 (splashing) or IPX3 (dripping) tests?

Not natively—the nozzle configuration, flow rate range, and structural layout are optimized exclusively for IPX5 and IPX6. IPX3/IPX4 require different angular oscillation mechanisms and lower-pressure delivery systems.
What calibration documentation is supplied with the unit?

Each unit ships with factory calibration certificates for both flowmeters and pressure gauges, traceable to China National Institute of Metrology (NIM) standards. Annual recalibration services are available through authorized Yuelian service centers.
Is the turntable speed adjustable?

Yes—the rotation speed is fixed at 1 rpm to satisfy the uniform exposure requirement in IEC 60529, but the direction (clockwise/counterclockwise) and start/stop timing are operator-controlled via the front panel interface.
Does the system meet EMC immunity requirements for laboratory use?

Yes—the control cabinet includes filtered AC input, shielded internal cabling, and surge-protected power distribution, achieving compliance with IEC 61000-6-2 (industrial environment immunity) and IEC 61000-6-3 (emission limits).