Handling of Interference Problems of Flowmeter Conventional Current Output

Handling of flowmeter conventional current output interference problem 1. E-type flowmeter shows instantaneous flow when there is no flow, only a few squares, but the display does not return to zero. This situation is generally caused by uneven potential. You can connect the three ground terminals in pairs by operating the three jumper caps on the terminal board, and the problem can generally be solved. This method is also applicable to other vortex and turbine flowmeters. 2. For other types of two-wire current output, sometimes the current output is unstable or the current output is inaccurate. At this time, the following operations can be performed: (1) Remove the flowmeter signal line and connect the multimeter in series. Measure the output current value. If the current value output and the displayed flow rate can be matched, it means that there is a problem with the flowmeter transmission signal or the customer's equipment at this time. It is ok to ask the customer to detect it by himself; if the measured output current value of the flowmeter is unstable, The jump is very large. At this time, it means that the current value is connected to the interference signal. At this time, the direct solution: ① Replace the flowmeter with a three-wire current converter; ② The customer loads the signal isolator by himself. (2) If the current signal measured from the positive and negative signal terminals of the flowmeter fluctuates greatly, it may be a problem with the power supply, and the customer can check the power supply. 3. For three-wire current output, the output is inaccurate or fluctuating for the following two reasons: (1) There is a problem with the power supply. The independent 24V power supply can be replaced, and the power supply is not drawn from the PLC. (2) There is a problem in the process of signal transmission or the reception problem of the client equipment. 4. On-site display fluctuates greatly (1) On-site electromagnetic interference. Inverter, high-voltage, high-power electrical appliances... In this case, it is generally necessary to change the installation location and keep away from the source of interference. (2) Interference signals are inserted into the pipeline. Generally, this kind of situation is easy to occur when there are many electrical appliances and equipment on site. (3) Power interference. The power supply needs to be replaced.

Many of us have heard about mass flow meter and seen some of these units in operation in digital fork density meter, v shape coriolis mass flow meter and insertion ultrasonic flow meter spaces.

Beijing Sincerity Automatic Equipment Co., Ltd works hard to enhance continuously our reputation for accessibility, professionalism, performance, and the depth and quality of our long-term consultative relationships with clients.

We studied how market-leading companies are harnessing data to reshapeBeijing Sincerity Automatic Equipment Co., Ltd, and explored how they can put data to work for us in ways that create value for our own businesses.

It's the consistent experience that builds trust and loyalty. Creating a personality and platform that is scalable will allow you to evolve mass flow meter with your consumers.