『Foshan flowmeter』Related information(flow rotameter|digital flow meter|balo meter|hydraulic flow meter|volumetric meter|positive displacement meter|pitot tube flow meter|displacement meter|cfm meter|variable area flow meter|inline flow meter|differential pressure flow meter|calibrated flow meter|velocity meter|paddle wheel flow meter|oval gear flow meter|anemometer hvac|multiphase flow meter|doppler flow meter|thorpe tube flowmeter|heat flow meter)
1. How to transmit the signal of the flow meter to the PLC and display it on the computer screen without flow rate
Use AI module to collect the 4-20mA signal of the flow meter, program it for engineering quantification processing, display it and accumulate it; If the flowmeter has a communication function, it can directly read the flow rate using communication methods such as MODBUS, PROFIBUS, CAN, or free port communication; Some flow meters have pulse output function, so use the high-speed counter of PLC to collect pulses, and then program and process the displayed flow rate. If the PLC uses instantaneous flow to convert accumulated flow, usually a 4-20mA output is sufficient, and this frequency signal is usually used for accumulation. Moreover, the accuracy of the accumulated flow calculated by instantaneous flow conversion is much lower than that calculated by pulse counting. The implementation of PLC accumulation is also very simple. For analog quantities, there is an instantaneous value at a certain moment, as long as the instantaneous value is read every second for accumulation. Pulse switching is simpler, and the flow value represented by each pulse can be set in the flow meter. Once determined, the PLC can directly read the number of pulses to calculate the flow value and cumulative value. Extended information: After the programmable logic controller is put into operation, its working process is generally divided into three stages, namely input sampling, user program execution, and output refresh. Completing the above three stages of key leasing is called a scanning cycle. During the entire runtime, the CPU of the programmable logic controller repeatedly executes the above three stages at a certain sc
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2. Recommended brands that are more reliable than ordinary ultrasonic flowmeters
Currently, there are two major camps for brands that are more reliable than ordinary ultrasonic flowmeters: international first-line and domestic high-quality, which can be selected based on actual working conditions, budgets, and application scenarios
1. International brands 1 E+H (Endershause): Founded in Germany in 1953, is a global expert in the field of process automation, providing industrial process control measurement instruments, services, and solutions. Our products cover clamp on, plug-in, and tube wax segment ultrasonic flow meters, suitable for liquid measurement and widely used in water and sewage treatment fields. We have multi-channel measurement functions, high measurement accuracy, and good stability. 2. Emerson: Founded in the United States in 1890, we are a professional engineering technology solution provider with a wide range of business, providing innovative solutions in process management, industrial autom
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