Huaibei ultrasonic flowmeter manufacturer

1. Should the ultrasonic flowmeter in the fire pump room be wired? The handheld ultrasonic flowmeter used in the fire pump room does not require wiring. It adopts an external clamp installation, with the probe directly attached to the outer wall of the pipeline, powered by batteries, and can measure flow by inputting parameters such as pipe diameter and material when turned on. The entire process does not require pipe breakage, continuous water supply, or power cord connection. Fixed ultrasonic flow meters (such as pipe section or flange type) require wiring, including power lines, 4-20mA signal lines, or RS485 communication lines, for long-term online monitoring and data remote transmission. However, these devices are mostly used for new construction or renovation projects and are not for inspection scenarios. According to the spot parameters of Shanghai Fire Ultrasonic Flow Meter (DN50-DN500, Mingyu brand), portable models are commonly used for on-site testing, emphasizing "instant clamping and testing, instant testing and travel". The 15 hour battery life supports full day inspection, completely avoiding the difficulties of wiring construction.

2. The introduction of ultrasonic flowmeter is concise and easy to understand.

The pipe section ultrasonic flowmeter is an instrument that measures the liquid flow inside a circular pipe based on the principle of "velocity difference method".

. It adopts advanced multi pulse technology, signal digital processing technology, and error correction technology, making flow meters more adaptable to the environment of industrial sites, and measuring more conveniently, economically, and accurately. Below, we will introduce the relevant characteristics of ultrasonic flow meters for your reference.

1. Introduction

1. Definition: Ultrasonic flowmeter is an instrument that measures flow by detecting the effect of fluid flow on ultrasonic beams (or ultrasonic pulses).

. 2. Principle: According to the principle of signal detection, ultrasonic flowmeters can be divided into propagation velocity difference method (direct time difference method, time difference method, phase difference method, and frequency difference method), beam offset method, Doppler method, cross-correlation method, spatial filtering method, and noise method. Ultrasonic flowmeter, like ultrasonic flowmeter, is an unobstructed flowmeter due to the absence of any obstruction in the instrument flow channel. It is a type of flowmeter suitable for solving the difficulty of flow measurement, especially in large-diameter flow measurement, and has outstanding advantages. It is one of the rapidly developing types of flowmeters. The ultrasonic flowmeter adopts the principle of time difference measurement: a probe emits a signal that passes through the pipe wall, medium, and the other side of the pipe wall, and is received by another probe. At the same time, the second probe also emits a signal that is received by the first probe. Due to the influence of the medium flow velocity, there is a time difference Δ t between the two. According to the calculation, the conversion relationship between the flow velocity V and the time difference Δ t can be V=(C2/2L) × Δ t, and the flow rate value Q can be obtained. Its measurement accuracy is very high, almost unaffected by various parameters of the measured medium, and can especially solve the flow measurement problems of highly corrosive, non-conductive, radioactive, and

2. The introduction of ultrasonic flowmeter is concise and easy to understand.

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