HAIDA HD-E710 Rain Test Chamber
| Brand | HAIDA INTERNATIONAL |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | Direct Manufacturer |
| Model | HAIDA HD-E710 Rain Test Chamber |
| Temperature Range | 15–40 °C |
| Rainfall Intensity | 1.7 mm/min |
| Water Droplet Diameter | 0.5–4.5 mm (nozzle orifice: φ0.6 mm and φ0.33 mm) |
| Wind Speed Range | 5–20 m/s (adjustable |
| nominal test condition | 18 m/s at 45° droplet deflection) |
| Test Duration | 1–999,999 min (programmable) |
| Internal Chamber Dimensions | 2500 × 1500 × 1800 mm (D×W×H) |
| Turntable Diameter | φ1000 mm |
| Turntable Load Capacity | 100 kg |
| Turntable Speed | 1–3 rpm (adjustable) |
| Drip Area | 800 × 800 mm |
| Nozzle Spacing | 20 mm |
| Drip Height | 1000 mm |
| Airflow Cross-Section | 1000 × 1000 mm |
| Control System | Teelong PLC-based touchscreen controller with RS232/USB interface |
| Compliance | MIL-STD-810G Method 506.5 Procedure I, GJB150.8A-2009 Program I |
Overview
The HAIDA HD-E710 Rain Test Chamber is a precision-engineered environmental simulation system designed to evaluate the ingress protection (IP) performance and weather resistance of enclosures, electronic housings, automotive components, and industrial equipment under controlled rain exposure conditions. It operates on the principle of calibrated vertical drip and dynamic wind-assisted rain simulation—reproducing natural rainfall patterns with defined droplet size distribution (0.5–4.5 mm), intensity (1.7 mm/min), and directional impact angles (up to 45° via 18 m/s crosswind). Unlike static spray chambers, the HD-E710 integrates synchronized turntable rotation (1–3 rpm), programmable wind velocity (5–20 m/s), and real-time water flow regulation to emulate realistic field exposure scenarios where orientation, airflow, and precipitation interact dynamically. Its structural architecture—built entirely from 304 stainless steel for corrosion resistance—and vacuum-sealed drip manifold ensure long-term repeatability and metrological stability across thousands of test cycles.
Key Features
- Full compliance with MIL-STD-810G Method 506.5 Procedure I (Rain) and GJB150.8A-2009 Program I for military-grade environmental qualification testing
- Programmable dual-parameter rain simulation: independently adjustable water flow rate (1.7 mm/min ±0.2 mm/min) and wind speed (5–20 m/s) with closed-loop feedback via integrated anemometer and flow sensor
- Motorized stainless-steel turntable (φ1000 mm, 100 kg load capacity) with precise 1–3 rpm speed control for uniform exposure of all sample surfaces
- Dual-nozzle array (φ0.6 mm and φ0.33 mm orifices) mounted on a vacuum-regulated aluminum-stainless manifold, enabling reproducible droplet generation across an 800 × 800 mm coverage area
- Modular airflow system featuring two 3.5 kW variable-frequency-driven centrifugal fans, delivering consistent 18 m/s crosswind at 45° droplet trajectory—calibrated per ASTM D570 and ISO 20653 Annex B
- Teelong proprietary PLC-based control platform with 7-inch capacitive touchscreen, RS232/USB connectivity, and audit-trail-capable data logging (timestamped flow, wind, rotation, duration)
- Robust chamber construction: 304 stainless steel interior (4 mm thickness), reinforced square-tube frame, double-glazed observation doors (2000 × 1000 mm), and removable air ducts for maintenance access
- Comprehensive safety architecture: overtemperature cutoff, phase-loss detection, ground-fault circuit interruption, low-water shutoff, and motor thermal overload protection
Sample Compatibility & Compliance
The HD-E710 accommodates test specimens up to 600 × 600 × 600 mm in volume, mounted on its rotating platform within a usable internal workspace of 1000 × 1000 × 1000 mm. Its design supports full-system validation for IPX1–IPX3-rated enclosures per IEC 60529, as well as extended-duration rain exposure per SAE J1962 and ISO 16750-4 for automotive ECUs. The chamber meets GLP/GMP documentation requirements through traceable calibration records for flow sensors, anemometers, and timer modules—each referenced to NIST-traceable standards. Data export (CSV/Excel) enables integration into LIMS environments compliant with FDA 21 CFR Part 11 when paired with optional electronic signature modules. All electrical components conform to CE, UL 61010-1, and RoHS directives.
Software & Data Management
The Teelong control firmware provides deterministic real-time scheduling of multi-stage test profiles—including pre-wetting, dynamic wind-rain coupling, post-test drainage, and purge cycles. Each parameter (water flow, wind speed, rotation speed, dwell time) is individually programmable with up to 99 user-defined test methods stored in non-volatile memory. The system logs timestamped operational data at 1-second intervals, including measured flow rate (L/min), actual wind velocity (m/s), turntable RPM, and elapsed test duration. Exported datasets include metadata headers identifying operator ID, calibration due dates, sensor serial numbers, and firmware revision—supporting ISO/IEC 17025-compliant laboratory accreditation. Remote monitoring is enabled via optional Ethernet module (TCP/IP Modbus RTU), allowing integration into centralized test facility management systems.
Applications
- Validation of IP-rated enclosures for outdoor telecom cabinets, solar inverters, and smart grid infrastructure
- Functional reliability testing of automotive lighting assemblies, ADAS sensors, and battery management systems under simulated monsoon conditions
- Corrosion resistance assessment of coated metal substrates in aerospace fasteners and marine instrumentation housings
- Accelerated aging studies of polymer seals, gaskets, and elastomeric connectors exposed to cyclic wet-dry thermal stress
- Qualification of consumer electronics (smartphones, wearables, IoT gateways) per IEC 60068-2-75 Ed. 3.0 (rain test method)
- Verification of ingress protection claims for industrial control panels subjected to washdown environments in food & beverage processing
FAQ
What standards does the HD-E710 explicitly support?
The chamber is engineered to meet MIL-STD-810G Method 506.5 Procedure I (Rain), GJB150.8A-2009 Program I, IEC 60529 IPX1–IPX3, and ISO 16750-4 Section 4.2. Calibration certificates document traceability to national metrology institutes.
Can the system simulate wind-driven rain at variable angles?
Yes—the 18 m/s nominal wind speed deflects 0.5–4.5 mm droplets to approximately 45° from vertical, replicating horizontal rain incidence. Combined with 1–3 rpm turntable rotation, this ensures all upward-facing surfaces receive statistically uniform exposure over time.
Is the drip nozzle array serviceable without specialized tools?
All nozzles are threaded stainless-steel inserts mounted on a quick-release aluminum manifold. Replacement requires only a 2.5 mm hex key and takes under 15 minutes—no recalibration needed due to factory-laser-aligned mounting fixtures.
How is data integrity ensured during extended tests (>100 hours)?
The controller employs dual-storage redundancy: real-time logging to internal flash memory plus buffered USB export. Power-fail recovery preserves last-known state and resumes timing upon reboot without data loss.
Does the system support third-party software integration?
Yes—RS232 serial output provides ASCII-formatted telemetry (flow, wind, RPM, time) compatible with LabVIEW, MATLAB, and Python-based test orchestration platforms via standard SCPI-like command syntax.
