Smart differential pressure flowmeter is a smart flowmeter based on battery-powered low-power Internet of Things technology. It is mainly used for the detection of large-diameter water flow in urban water affairs and municipal pipe networks. It uploads collected water flow data and other information to the cloud server through a wireless remote communication network, and through the urban water affairs and municipal pipe network information system application platform Receive cloud server data and monitor the water flow of the network in real time. The data implements functions such as automatic meter reading, automatic historical storage, and pressure alarm, which make the distribution of water flow throughout the city's pipeline network timely, controllable, and predictable. In order to fully meet the special needs of water flow detection in municipal and pipeline networks, this intelligent differential pressure flowmeter is designed with online installation functions in mind, which can achieve continuous water installation and can also meet the requirements of harsh application environments.

Main performance

Use medium: municipal, pipe network water flow, liquid flow detection occasions

Sensors: flow sensor, temperature sensor, pressure sensor

Display: LCD liquid crystal display

Shell: die-cast aluminum alloy spray paint

Protection: sensor IP68, converter IP67/IP68

Transmission: using NB-IoT communication module, wireless remote transmission

Power supply: Transmitter/converter: High-energy lithium battery 3.6V, capacity 19Ah×4

       Note: The battery life is calculated by sending data once every hour, and can work for 3 years.

Working temperature: -10℃～70℃

Working pressure: 1.6 MPa

Measurement accuracy: ±1.5% (V＞0.5m/s) ；±2.5% (0.5＜V＞0.05m/s)

Repeatability: ±0.75% (V＞0.5m/s)

Small signal removal: ±1%～±3% FS

Flow measurement: forward and reverse (bidirectional measurement)

Temperature measurement: 0～80℃ Accuracy ±1.0℃

Pressure measurement: 0～1MPa (overload 6MPa) Accuracy ±0.5%

Caliber: DN100～DN1600mm

Antenna: internal and external antenna, lightning protection design

EMC: anti-interference design of the whole machine

Overall structure and installation dimensions