Introduction to Ten Basic Weir Types for Portable Open Channel Flow Meter Comparison

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1. Instructions for using LB-6200 portable flow meter

The instructions for using LB-6200 portable open channel flow meter are as follows: Start up and initialize. Turn on the power switch of the flow meter, wait for about 20 seconds, and the device will automatically complete the initialization and startup process. This step is crucial to ensure the normal startup of all modules of the device. Please do not perform any other operations during this period to avoid affecting the initialization effect. Probe installation: Align the probe notch of the flowmeter with the installation position and insert it. When the indicator light is on, it indicates that the probe has been successfully installed. The probe is fixed by magnetic attraction with a tripod. If the installation position is far away from the Zenchang Wheel, an extension cable can be used for connection. The method of using an extension cord is to align one male and one female insertion tube and plug it in, ensuring a secure connection and avoiding measurement errors caused by poor contact. The water level calibration is achieved by adjusting the bubble level on the tripod to keep the bubbles level with the water surface. The accuracy of horizontal calibration directly affects the accuracy of flow measurement, so it is necessary to carefully observe the bubble position of the level during the calibration process to ensure that it is in the center position. If there is vibration or interference in the environment, it is necessary to wait for stability before calibration. Comparative measurement of operation interface functions: Select the "Comparative Measurement" function in the operation interface to perform real-time flow measurement. This feature is s

uitable for scenarios that require continuous monitoring of congratulatory messages or comparison of traffic data across different time periods. Data Query: Through the "Data Query" function, previous measurement records can be viewed. The new device has no historical data, and the measurement data can be saved and printed out for easy analysis and archiving in the future. Parameter setting: The calibration parameters have been set before leaving the factory, and users do not need to adjust them themselves. But the system time can be modified, data records can be deleted, or data can be exported through a USB interface according to actual needs. When exporting data, ensure that the USB interface is connected properly to avoid data loss. The installation of ultrasonic sensors must strictly follow the on-site installation requirements in Chapter 6 of the instruction manual. During the installation process, attention should be paid to the direction, angle, and position of the sensor to ensure that it matches the measurement environment and obtains accurate measurement results. Please read the user manual carefully before operation to ensure compliance with professional operating standards and avoid equipment damage or measurement errors caused by improper operation.

2. Working principle of portable open channel flowmeter

The working principle of portable open channel flowmeter is based on non-contact ultrasonic measurement technology, which measures the liquid level height in the open channel weir trough through acoustic reflection, and calculates the flow rate by combining the mathematical relationship between vertical flow rate and liquid level.

. The specific principle is as follows:

1. Ultrasonic

Introduction to Ten Basic Weir Types for Portable Open Channel Flow Meter Comparison

1. Instructions for using LB-6200 portable flow meter

2. Working principle of portable open channel flowmeter

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