Electromagnetic Flow Meter After-Sales Case 8

Field problem

The customer purchased several drinks with ARTang Aimag H sanitary electromagnetic flowmeter, which is used for flow control in the production process of drinks. Recently, it was found that a DN150 electromagnetic flowmeter fluctuated slightly.

Troubleshooting and analysis 

After receiving the feedback from customers, ARTang technical team immediately communicates with customers through video and WeChat, and checks and analyzes the faults:

1. ARTang electromagnetic flowmeter all adopts four electrodes design, and the extra grounding electrode can realize the perfect grounding of the pipeline to be tested, so as to avoid the slight jump of the converter head caused by scattered interference signals inside the pipeline. Besides, there is no equipment near the electromagnetic flowmeter that can cause electromagnetic interference. Therefore, the influence of external electromagnetic interference is eliminated.

2. When our technical team investigated the field situation, we found that the pipeline was vibrating.

Solution

After receiving the feedback from customers, ARTang technical team immediately communicated with customers through video and WeChat, and checked and analyzed the faults:

1. ARTang electromagnetic flowmeter is all four electrodes, and the extra grounding electrode can realize the perfect grounding of the pipeline to be tested, so as to avoid the slight jump of the converter head caused by scattered interference signals inside the pipeline. Besides, there is no equipment near the electromagnetic flowmeter that can cause electromagnetic interference. Therefore, the influence of external electromagnetic interference is eliminated.

2. When our technical team investigated the field situation, we found that the pipeline was vibrating.

Customer feedback

After installing fasteners on the pipeline, the output of electromagnetic flowmeter is stable.

What adverse effects will pipeline vibration have on electromagnetic flowmeter measurement?

Affect the stability of fluid velocity in vibrating pipeline, and then affect the stability of reading of electromagnetic flowmeter. Therefore, it is very important to ensure the stability of fluid flow. Stable pipeline system is the premise of accurate measurement.