Installation of online open channel flowmeter

NegotiableUpdate on 01/04

Model

Nature of the Manufacturer: Producers

Product Category

Place of Origin

Online Consult

Overview

The online open channel flowmeter is used in conjunction with a measuring weir to measure the flow rate of water in the open channel. Mainly used to measure the flow rate of sewage discharge outlets of sewage treatment plants, enterprise and government liquid units, and urban sewers.

Product Details

Online open channel flowmetertechnical indicators

1. Flow range: 0.1 liters per second to 10 cubic meters per second (determined by the specifications of the dosing weir). 2 Traffic uncertainty: 5% 3 Ultrasonic distance measurement: 2 meters 4 Probe blind spot: 0.4 meters (cannot be used for measurement within 0.4 meters from the flange of the probe) 5 Distance measurement error:<0.4% or ± 3 millimeters (within 1 meter range) 6 Water level resolution: 1 millimeter 7 Instrument protection: The probe is waterproof and cannot be immersed in water; The instrument is dust-proof. 8. AC or DC power supply: AC: 220V 50HZ 2W; DC power supply DC12-24VOnline open channel flowmeterThe working principle of the open channel flowmeter is that the physical quantity directly measured by the instrument is the liquid level. When used for measuring flow in open channels, a measuring weir groove is installed on the open channel. The measuring weir channel converts the flow rate in the open channel into the height of the liquid level. The instrument measures the water level in the measuring weir groove, and then calculates the flow rate based on the corresponding water level flow relationship of the measuring weir groove. The commonly used measuring weirs and channels include right angled triangular weirs, rectangular weirs, and Bacher channels.

Used in conjunction with measuring weirs and channels to measure the flow rate of water in open channels. Mainly used to measure the flow rate of sewage discharge outlets of sewage treatment plants, enterprise and government liquid units, and urban sewers. Due to the use of ultrasonic waves passing through the air, this instrument measures in a non-contact manner. Therefore, in the case of sticky and corrosive liquids, it has higher reliability than other forms of instruments. Principle of Ultrasonic Liquid Level Measurement: This instrument uses ultrasonic echo ranging method to measure liquid level. The probe is fixedly installed above the water level observation point of the measuring weir. Aim the probe at the water surface. The probe emits ultrasonic waves towards the water surface. The working principle of the instrument: The instrument controls the probe to emit and receive ultrasonic waves. Measure the transmission time of sound waves to calculate the liquid level in mm. By checking the water level flow meter, convert the liquid level into flow rate (unit: liters/second). Instrument display: The instrument displays the liquid level height, instantaneous flow rate, and accumulates the instantaneous flow rate over time to obtain the cumulative flow rate. The instrument output includes 4-20mA current analog quantity; The switch quantity of the relay (to be ordered and selected); RS485 digital signal;