⎝⎛星力捕鱼⎞⎠

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Industry Information
How to maintain the electromagnetic flowmeter
2012-3-5 9:42:04

都是我们技术上门安装,教授如何维护和检修。 Among our users, some of them buy back electromagnetic flowmeters. They are installed on-site by our technology and teach how to maintain and repair. But it is basically not maintained. What I want to say here is that the use of any item requires maintenance. Without maintenance, his life will be reduced faster.

的保养呢? So how to maintain the electromagnetic flowmeter ?

First, always observe the sensor power cable and transmission cable (or wire) on the electromagnetic flowmeter for damage and aging, and protect the rubber sheath outside the cable.

Second, always observe the sensor power cable and transmission cable (or wires) for damage and aging, and protect the rubber sheath outside the cable.

Third, remove debris from the straight pipe section upstream of the sensor.

的故障和解决方法。 Let's talk about how to find the faults and solutions of electromagnetic flowmeters .

1) The output is unstable: 1. The flow field is unstable; 2. The liquid passing through the sensor contains gas and large solid blocks; 3. The electrical connection is virtual; 4. The ground is poor; 5. The electrode leakage solution: 1. Transformation Pipes, or increase the installation of fake sensors; 2. normal phenomenon; 3. check the wiring, connect the wire; 4. connect the ground wire; 5. repair the sensor.

2) No output of liquid flow: 1. The two core wires of the signal transmission cable between the converter and the converter are reversed; 2. The power supply is not connected or the connection is poor; 3. There is leakage in the sensor instrument pipeline, housing, and end surface.
Solution: 1. Reverse the cable head; 2. Connect the power supply and maintain good contact; 3. Repair the sensor.

3) There is output when the liquid is not flowing: 1. The signal transmission cable between the converter and the converter has an open circuit; 2. The signal cable is disconnected from the electrode; 3. The electrode surface is contaminated or an insulating layer is deposited; 4. Poor ground or open circuit.
Solution: 1. Connect the cable; 2. Turn on the sensor and reconnect it; 3. Scrub the electrode surface; 4. Connect the ground wire.

4) Excessive error: 1. The zero point is too high; 2. It is not completely filled with liquid; 3. The power supply is distorted too much; 4. The grounding is poor.
Solution: 1. Readjust the zero point; 2. Improve the pipeline conditions, the sensor is always filled with liquid; 3. Improve the power supply conditions to meet normal working conditions; 4. Connect the ground wire.

I hope this article is helpful to all users. If users have better comments or suggestions, they can submit to the email: chinadongxiang@163.com