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How to connect the ultrasonic flowmeter
Ultrasonic steam flowmeter used all kinds of pipe diameter of liquid metrological verification, pipe diameter, the greater the calibration precision is higher, can double meter scale, no pressure loss, not influenced by the aura, liquid, working pressure, temperature, gas composition change, detailed intelligent system software data signal reception, every single pulse and preset standards can be terminated, inspection data signal quality, can obtain high quality inspection results.
How to connect the ultrasonic flowmeter
Ultrasonic steam flowmeter output and wiring
Below to Siemens PLC external clip-on ultrasonic steam flow meter as an example, discuss how the connection, because the sort of transmitter is very rich, the design scheme to match different kinds of transmitter, requires attention to 4-20 ma output is active or passive output, choose different connection methods, don't because of false wiring produces output abnormal or damaged power circuit.
For example, the current output of this compact transmitter is passive, which requires the control loop power supply system. The two-way IO connection is shown in the figure. VC is the 24V dc regulator power supply, and RL is the line resistor plus the input resistance of the customer data signal collection system software.
How is the output terminal wired
During the wiring of compact transmitter terminals, attention should be paid to the secondary TB1 from right to left and TB2 from left to right to prevent miswiring. The terminals are arranged as shown in the figure:
Compact terminal
Transducer electrical flow output terminal without power distribution equipment, there will be 7.8 mA fluctuation of power flow, can rely on the power flow to identify all the function of the circuit board is normal, on the transmitter power flow output terminal power distribution equipment, there will be 7.8 mA fluctuation of power flow, can rely on the power flow to identify the function of the circuit board.
Porcelain city Shanghai instruments co., LTD., founded in 2011, founded by former Siemens engineers MrStone, specializing in high quality, high precision, high frequency, high temperature, high pressure, wide range of flow meter research and development production, production strictly enforce the ISO9001 standards, the use of independent research and development of technology, substitute the gaps in China's small flow meter, the product can completely replace the Max, KRACHT (clark), OVAL and other international brands
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