Yuelian YL-9926B IPX3/IPX4 Rain Test Chamber
| Brand | Yuelian |
|---|---|
| Origin | Guangdong, China |
| Model | YL-9926B |
| Spray Nozzle Diameter | φ0.4 mm |
| Swing Arm Radius | 1000 mm |
| Swing Angle | 120°, 180°, ~350° |
| Average Swing Speed | ~60°/s (10 rpm) |
| Water Pressure | 80–100 kPa (adjustable) |
| Water Flow Rate | 0.07 L/min (adjustable) |
| Turntable Diameters | 250 mm, 550 mm, 1050 mm (solid plates) |
| Nozzle Count | 41–62 |
| Nozzle Spacing | 50 mm |
| Turntable Speed | 1–17 rpm (adjustable) |
| Power Supply | AC 380 V / 50 Hz |
Overview
The Yuelian YL-9926B IPX3/IPX4 Rain Test Chamber is an engineered environmental test system designed to evaluate the ingress protection (IP) rating of electrical and electronic enclosures under standardized simulated rainfall conditions. It operates on the principle of controlled oscillating spray exposure—specifically aligned with IEC 60529 (equivalent to GB 4208), where IPX3 denotes protection against water sprayed at angles up to 60° from vertical, and IPX4 signifies protection against water splashed from any direction. Unlike high-velocity or wind-driven rain simulation systems, this chamber replicates steady, gravity-fed precipitation without thermal differential effects, making it suitable for routine compliance verification in R&D labs, QC departments, and third-party certification facilities.
Key Features
- Programmable swing arm driven by a precision stepper motor and industrial-grade PLC (imported components), enabling repeatable angular positioning at 120°, 180°, or extended ~350° sweeps.
- Stainless steel (SUS304 brushed finish) structural frame, turntable guard, and control console—ensuring corrosion resistance and long-term dimensional stability in humid operational environments.
- Modular nozzle assembly with interchangeable φ0.4 mm orifices; nozzle count configurable between 41 and 62 units at precise 50 mm center-to-center spacing to meet uniformity requirements per IEC 60529 Annex B.
- Adjustable water pressure (80–100 kPa) and flow rate (0.07 L/min) via calibrated pressure gauge and digital flow meter, supported by a recirculating pump and inline filtration system.
- Motorized rotating test platform with variable speed control (1–17 rpm), accommodating three solid-diameter turntables (250 mm, 550 mm, 1050 mm) and two perforated grilles (280 mm, 550 mm) for diverse sample geometries and mounting configurations.
- Integrated safety interlocks and IPX4-rated protective housing for external drive components—ensuring operational integrity during continuous wet-cycle testing.
Sample Compatibility & Compliance
The YL-9926B supports enclosure testing for outdoor lighting fixtures, automotive signal lamps, telecommunications infrastructure, traffic control devices, and industrial control cabinets. It is fully compliant with multiple national and international standards, including IEC 60529, GB 4208, GB/T 2423.38 (Test R: Water Test Methods), GB 7000.1 (Luminaire Safety), GB 4706.1 (Household Appliance General Requirements), and GB/T 10485 (Environmental Testing for Automotive Lighting). While not intended for IPX5–IPX6 jet-based validation or thermal shock–coupled rain testing, its design strictly adheres to the mechanical and metrological constraints defined in Clause 14.2.3 and Annex B of IEC 60529 for IPX3/IPX4 verification.
Software & Data Management
This system employs a programmable logic controller (PLC)-based interface with local HMI operation—no proprietary software installation required. All critical parameters (swing angle, cycle duration, turntable speed, pressure setpoint) are stored in non-volatile memory and can be recalled as user-defined test profiles. The controller logs timestamped operational events (e.g., start/stop, fault triggers, pressure deviation alerts) for internal traceability. While the base configuration does not include FDA 21 CFR Part 11-compliant audit trails or networked data export, optional firmware upgrades support RS-485 Modbus RTU integration for centralized lab management systems operating under GLP or GMP-aligned quality frameworks.
Applications
- Verification of IPX3/IPX4 ratings during product development and pre-certification stages.
- Comparative evaluation of gasket integrity, seal compression behavior, and housing seam design under cyclic low-pressure water exposure.
- Accelerated environmental stress screening for outdoor-rated consumer electronics and smart city infrastructure components.
- Internal quality assurance testing for manufacturers supplying to OEMs with strict IP rating specifications (e.g., Tier 1 automotive suppliers).
- Supporting documentation for ISO/IEC 17025-accredited test reports issued by independent laboratories.
FAQ
Does the YL-9926B comply with IEC 60529 for IPX3 and IPX4 validation?
Yes—it implements the exact mechanical configuration, nozzle geometry, pressure range, and angular sweep parameters specified in IEC 60529 Annex B for both IPX3 and IPX4 test methods.
Can the turntable accommodate irregularly shaped or oversized samples?
The modular plate system allows physical customization: solid plates provide stable support for compact enclosures, while perforated grilles enable cable routing and bottom-access testing; maximum footprint supported is Ø1050 mm on the largest solid platform.
Is water temperature control available?
No—the standard configuration assumes ambient-temperature water supply (5–30°C), consistent with IEC 60529’s exclusion of thermal differential effects in IPX3/IPX4 protocols.
What maintenance is required for long-term reliability?
Routine inspection of nozzle orifices for clogging, periodic calibration of pressure and flow sensors, and quarterly replacement of filter elements in the recirculation loop are recommended per the manufacturer’s maintenance schedule.
Is remote monitoring or Ethernet connectivity supported?
Not natively—but RS-485 Modbus RTU output is provided for integration into SCADA or LIMS platforms using industry-standard gateways.
