日照DG-RAS-R-S20L10 Radar Ultrasonic Flow Meter

The product employs a dual‑mode sensor—combining underwater ultrasonic Doppler flow velocity and radar Doppler flow velocity—to measure manhole flow. The sensor also incorporates radar, pressure, and conductivity modules to acquire water level signals. The RTU integrates a power management module, a sensor drive module, a power supply management module, and a communication module.

Category:

日照Urban Underground Pipeline Monitoring Instrument

Product Description

Measurement principle

The product employs a dual-mode sensor—combining underwater ultrasonic Doppler flow velocity and radar Doppler flow velocity—to measure manhole flow. The sensor also includes radar, pressure, and conductivity modules to detect water level signals. The RTU integrates a power management module, a sensor drive module, a power supply management module, and a communication module.

Key Features

Measurement parameters: flow velocity, water level, discharge, wetted cross-sectional area, cumulative discharge, and signal strength.
It is recommended to use under operating conditions where the flow velocity exceeds 0.2 m/s.

The host unit is equipped with an expansion bolt kit, enabling rapid installation at the wellhead.
The host features a stainless steel enclosure, offering excellent corrosion resistance, waterproofing, and impact resistance.
Rigid sealing, unaffected by temperature fluctuations.
Supports multiple lid openings without compromising waterproofing, making on-site battery replacement convenient.
A color local display unit accessory can be optionally added.

Application scenarios

Measurement of flow velocity and discharge in manholes; measurement of flow velocity and discharge in rivers, channels, and other waterways for hydrology, water resources management, environmental protection, and municipal applications; measurement of irrigation discharge in agricultural systems; measurement of intake‑point discharge; measurement of outlet‑point discharge; and measurement of non‑full‑pipe flow in laboratory facilities.

Technical Specifications

Host: Stainless steel housing, IP68, explosion-proof, wall-mounted in wellbore. Host: 304 stainless steel, IP68 , explosion-proof, wall-mounted
Flow velocity accuracy: 1% ± 0.005 m/s
Flow velocity resolution: 0.001 m/s
Bidirectional mode: -0.006 m/s ~ 0 ~ 0.006 m/s
Flow rate accuracy: ±1% FS
Flow velocity resolution: 0.001 m/s
Dead-zone flow velocity: -0.05 m/s to 0–0.05 m/s (recommended for operating conditions with a flow velocity greater than 0.2 m/s)
Water level range: 0–10 m, customizable; (dead zone: 0.05 m)
Water level accuracy: ±0.2% FS
Water level resolution: 0.001 m
Water temperature range: 0–60°C
Water temperature accuracy: ±0.5℃
Conductivity range/accuracy: 0–10.000 mS/cm / 2% (optional)
Water temperature resolution: 0.1℃
Power Supply: Built-in lithium‑ion battery, non‑rechargeable, 12 VDC
Battery life: 5 minutes per measurement and transmission; each sensor operates for 10 seconds per cycle, with 4G connectivity lasting up to one year.
Wireless breakpoint resumption: When the base station signal is interrupted, data is automatically saved and, once the wireless signal is restored, the timestamped data is resent.
Base settings: Rectangle, Circle (factory preset), Trapezoid, Ellipse, U‑shape, Other customizations
Full-pipe detection: Automatically identifies the full-pipe condition and independently calculates the flow cross-sectional area.
Explosion-proof rating: EX ia IIC T6 Ga