6 Aisite Instrument belongs to Aisite Instrument (Shanghai) Co., Ltd. and is one of the leading brands of ultrasonic flow meters and heat meters in China. It is particularly strong in the field of heating metering, focusing on ultrasonic measurement technology. 7. Beite Intelligent Instrument belongs to Suzhou Beite Intelligent Instrument Co., Ltd. and is an automation instrument manufacturer that integrates research and development, design, manufacturing, sales, and system services. In 2018, it joined the FCG Foundation and became a member of the global HART Foundation. 9. Tuosite belongs to Taian Tuosite Instrument Co., Ltd. It is a high-tech enterprise specializing in the production of flow meters and their supporting equipment, and has introduced advanced instrument manufacturing technology from Germany. 10. Krohne belongs to Jiangsu Ruiling Automation Instrument Co., Ltd. Its Krohne vortex flowmeter is a high-precision flow measurement device widely used in the industrial field.
The main reason why an ultrasonic flowmeter displays 0000 despite having a flow rate is due to abnormal signal reception or incorrect parameter settings, which cause the system to determine that there is no effective flow rate.
. 1. Installation and sensor issues: Improper installation position: too far away from the pipe wall, close to turbulent areas such as bends/valves, can cause distortion of ultrasonic signals. Sensor failure: dirty transducer surface, dry coupling agent, short circuit of the circuit or corrosion of the joint, requiring cleaning, testing or replacement of coupling agent. Failure: special coupling agent needs to be reapplied to ensure sound wave transmission. 2 Abnormal working conditions and medium flow rate: When the flow rate is below the minimum detection threshold of the flowmeter (usually 0.1m/s), it cannot trigger a change in the measured medium state. High temperature gasification, excessive bubbles or impurities will a