FourFaith IoT
Water level, surface flow velocity; automatic calculation of instantaneous flow rate and cumulative flow volume.
Device self-check: power supply voltage, overall equipment operation fault status monitoring.
Tipping bucket rain gauge is optional for rainfall data collection;
Digital input peripheral status acquisition;
Supports linkage with cameras, environmental sensors and audible & visual alarm devices;
Onboard solid-state storage for historical data including water level, flow velocity, flow rate, voltage and alarms.
Model F-LL100 is a 24GHz K-band FMCW integrated radar flowmeter developed by Xiamen FourFaith. It adopts the Doppler effect to measure flow velocity and radar ranging to detect water level, and automatically calculates instantaneous flow rate and cumulative flow via hydraulic algorithms.
The RTU data acquisition and communication module is optional. The unit integrates measurement, local storage, multi-link wireless transmission, peripheral linkage and remote operation & maintenance functions. It is designed for non-contact flow monitoring of open channels in water conservancy scenarios, addressing the pain points of traditional contact flow measuring devices such as sediment accumulation, corrosion and high maintenance workload.
✅️ ONon-contact measurement with high precision, free from dirt deposition and contamination./p>
✅️ AAdopts array antenna design, featuring compact size, light weight and easy installation./p>
✅️ FStrong anti-interference capability against atmospheric changes such as water vapor, temperature and pressure fluctuations./p>
✅️ REquipped with false signal processing function to filter invalid interference signals.
✅️ DSupports local data storage of water level, flow velocity, instantaneous flow rate and cumulative flow./
✅️ RBuilt-in fluctuation compensation algorithm minimizes the impact of wind force and bridge vibration./p>
✅️ DIP68 protection grade with professional lightning protection design, supporting long-term outdoor continuous operation.
| Protection Class | IP67, corrosion resistant | Operating Temperature | -35℃ ~ 75℃ |
|---|---|---|---|
| Ranging Range | 10m, 30m | Ranging Accuracy | ±2mm |
| Velocity Measurement Range | 0.1~15m/s | Velocity Accuracy | ±0.01m/std> |
| Supply Voltage | DC 7~36V | Communication Interface | RS-232, RS485, 4~20mA (optional), 2G/3G/4G, BT, LoRa (optional) |
F-LL100-30 only supports local RS485 / 4-20mA output and provides basic measurement of water level, flow velocity and flow rate.
F-LL100-30-L is integrated with an RTU module. It supports wireless remote transmission via 2G/3G/4G/NB-IoT/LoRa, rainfall/analog/digital input collection, large-capacity local storage, remote firmware upgrade, over-limit alarm and data reporting via hydrological protocols.
The device is equipped with built-in fluctuation compensation and false signal processing functions. Firstly, enable software filtering.
Verify the installation angle to ensure the radar beam is perpendicular to the water surface.
Avoid locations affected by strong wind or bridge vibration.
Clean dust and water mist covering the antenna.
Adopt regular channel cross-sections to reduce turbulence interference.
Self-report mode is preferred for field solar-powered applications. Its standby current is less than 1mA; the device connects to the network and uploads data only at scheduled intervals or when alarms are triggered, greatly cutting power consumption.
Choose compatible mode for scenarios requiring on-demand real-time data polling from the platform. The device stays online continuously with higher overall power consumption.
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