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Box Open Channel Flow Meters


The box type open channel measurement system uses the measurement principle of velocity area method as the basic measurement method, and is composed of box type electromagnetic velocity sensor, liquid level sensor and intelligent converter. Its working principle is to calculate the section area through the real-time water level measured by the box type electromagnetic velocity sensor, and the channel flow can be obtained by multiplying the average section velocity by the section area.Liquid level gauges with different principles and forms can be used to measure the water level of the section. Liquid level gauges generally include ultrasonic liquid level gauge, pressure liquid level gauge, etc.



The box type open channel measurement system uses the measurement principle of velocity area method as the basic measurement method, and is composed of box type electromagnetic velocity sensor, liquid level sensor and intelligent converter. Its working principle is to calculate the section area through the real-time water level measured by the box type electromagnetic velocity sensor, and the channel flow can be obtained by multiplying the average section velocity by the section area.Liquid level gauges with different principles and forms can be used to measure the water level of the section. Liquid level gauges generally include ultrasonic liquid level gauge, pressure liquid level gauge, etc.

Functional features:

(1) The measurement system can measure real-time water level, average velocity and cumulative flow

(2) With reasonable mathematical model and advanced process technology, multi pair electrode automatic tracking measurement can accurately measure the average flow velocity of different sections

(3) Wide measurement range (0.01-10m / s)

(4) Bidirectional flow measurement

(5) The measurement is not affected by floating objects, sediment content, water level change and temperature in the water

(6) The flow rate sensor is easy to install and has no resistance to water flow.The standard section can be installed directly without modification, which has little difficulty and low cost

(7) Instrument display function: it can display water level, section average velocity, section instantaneous flow, cumulative flow, etc. at the same time

(8) It has the function of permanent data saving, which can save the set parameters and flow values in the case of long-term power failure

(9) The instrument has 485 interface of standard MODBUS (RTU) output and dual analog input interface

 

     
converter Accuracy Water level ± 2mm;Flow rate ± 1.0%;System ≤± 2.5%
  measuring range Flow rate: 0.01-10m/s
  Power supply 12 / 24 / 220V / solar power supply
(multiple power supply modes are optional)
  Communication mode RS485 MODBUS (RTU) protocol
  Degree of protection IP68
  Cumulative flow display
Maximum
9999999999
  Instantaneous flow display
Maximum
10000
  Flow rate display maximum 19.999
  Maximum value of liquid level display 19.999
  power waste <5W
  Velocity sensor Principle of Faraday's law of electromagnetic induction (see model and specification for dimensions, which can be customized)
  Liquid level sensor Pressure, ultrasonic, radar, magnetostriction (other optional)
  Signal cable Standard 10m (customizable)
  Degree of protection IP68
Options Options Solar power supply system, support, support embedded parts, stainless steel instrument box, battery buried box, communication module

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