ZYKX ZY-YL Automatic Tipping Bucket Rain Gauge
| Brand | ZYKX |
|---|---|
| Origin | Beijing, China |
| Model | ZY-YL |
| Measurement Range | 0–5 mm/min |
| Accuracy | ±0.2 mm |
| Resolution | 0.1 mm |
| Measurement Error | ±2% |
| Recording Interval | 1 min – 24 h (user-configurable) |
| Memory Capacity | 16 MB (supports ≥10 years of continuous logging at 1-min interval) |
| Data Export | USB interface |
| Orifice Diameter | φ200 mm |
| Housing Material | High-grade ABS engineering plastic |
| Power Supply | Integrated lithium battery (rated service life: 3–5 years) |
| Operating Temperature | −40 °C to +70 °C (non-freezing conditions) |
| Compliance | Designed for long-term unattended field deployment without external power or communication infrastructure |
Overview
The ZYKX ZY-YL Automatic Tipping Bucket Rain Gauge is an autonomous, low-power environmental monitoring instrument engineered for precise, long-term measurement of precipitation volume, intensity, and temporal distribution. Based on the tipping-bucket principle—a gravimetric displacement method in which each 0.1 mm of collected rainfall triggers a mechanical flip of a dual-compartment bucket—the device converts discrete mechanical events into calibrated digital records. This design ensures high repeatability under variable wind, temperature, and debris-loading conditions typical of unsheltered outdoor sites. Unlike siphon- or weighing-type gauges, the ZY-YL prioritizes field robustness, energy autonomy, and data integrity over real-time telemetry—making it especially suited for remote hydrological networks, agricultural climate stations, watershed monitoring programs, and infrastructure resilience assessments where grid power and cellular coverage are unavailable.
Key Features
- Self-contained operation: Integrated lithium battery enables up to 5 years of continuous logging without maintenance or external power input.
- High-fidelity tipping mechanism: Precision-machined ABS bucket assembly with low-friction pivot system and optimized moment-of-inertia design ensures consistent tip threshold and minimal hysteresis.
- Electromagnetic noise immunity: Onboard RC filtering circuitry suppresses false triggering from electrical transients, vibration, or electrostatic discharge—critical for stable performance in industrial or lightning-prone environments.
- Adjustable sampling resolution: Configurable recording intervals from 1 minute to 24 hours via USB-connected configuration software—supporting both high-resolution storm event capture and long-term climatological trend analysis.
- Field-serviceable mechanical design: Leveling bubble integrated into base plate facilitates rapid site alignment; corrosion-resistant ABS housing maintains dimensional stability across −40 °C to +70 °C operational range.
- Standardized collection geometry: 200 mm diameter orifice conforms to WMO guidance for representative catchment area and minimizes wind-induced undercatch error when installed per ISO 9638-1 mounting recommendations.
Sample Compatibility & Compliance
The ZY-YL is intended for use with natural atmospheric precipitation—including drizzle, rain, and melted snowfall—in open-field, rooftop, or elevated platform installations. It is not designed for solid-phase accumulation (e.g., unmelted snow or hail) without auxiliary heating or melting mechanisms. While not certified to IEC 60529 IP67 or MIL-STD-810G, its ABS enclosure meets UL 94 HB flammability rating and demonstrates proven reliability in multi-year deployments across diverse Chinese provincial meteorological networks. Data output adheres to ASCII-based CSV formatting compatible with national hydrometeorological databases and aligns with GB/T 20486–2017 (Chinese National Standard for Rainfall Observation Instruments). The device supports traceable calibration through documented bucket-tip verification procedures aligned with ASTM D3209 practices.
Software & Data Management
The included Windows-compatible PC application provides full local control over device configuration, real-time status diagnostics, and post-hoc data retrieval. Users may define custom logging schedules, perform time-synchronized multi-device deployments, and generate summary statistics—including cumulative rainfall per minute/hour/day/month/year—as well as duration-intensity histograms. All exported datasets are saved in native Microsoft Excel (.xlsx) format with UTC timestamps, enabling direct ingestion into GIS platforms (e.g., ArcGIS Hydro), statistical packages (R, Python pandas), or regulatory reporting tools. Audit trails are maintained locally within the software log file; no cloud upload or remote access capability is implemented—ensuring full data sovereignty and compliance with internal IT security policies governing sensitive environmental infrastructure.
Applications
- Hydrological monitoring: Streamflow forecasting inputs for reservoir inflow modeling and flood warning systems.
- Agricultural water management: Irrigation scheduling support via evapotranspiration deficit calculation using localized rainfall totals.
- Urban climate studies: Validation of high-resolution weather model outputs and urban heat island effect correlation analysis.
- Infrastructure asset protection: Corrosion risk assessment for transportation corridors, power substations, and heritage building conservation programs.
- Educational fieldwork: Undergraduate and graduate-level environmental science curricula requiring hands-on instrumentation training and reproducible dataset generation.
- Environmental impact assessment: Baseline precipitation characterization for EIA reports mandated under national and provincial ecological regulation frameworks.
FAQ
How is calibration verified in the field?
Calibration is confirmed using a volumetric test procedure: 0.1 mm depth over the 200 mm orifice equals 314.16 mL. A precision burette delivers this volume directly into the collector; correct tip count is validated visually and logged digitally.
Can the device operate during freezing conditions?
The unit functions mechanically down to −40 °C, but liquid water must remain unfrozen in the bucket and channel. For sustained sub-zero operation, supplemental heating elements or heated orifice accessories are required—neither of which are included with the standard ZY-YL configuration.
Is the memory capacity truly sufficient for 10 years?
Yes—16 MB of flash memory accommodates approximately 31.5 million timestamped tip events. At maximum resolution (1-min interval), this exceeds 60 years of storage; even at 10 tips per minute (intense tropical rainfall), 10+ years of uninterrupted logging is assured.
Does the USB interface support firmware updates?
No. Firmware is factory-programmed and immutable in the current hardware revision. Future upgrades would require replacement of the embedded microcontroller module—not user-serviceable.
What mounting hardware is supplied?
A universal stainless-steel mounting bracket with adjustable tilt compensation and M8 threaded base is included. Optional tripod adapters and roof-mounting kits are available separately.
