Reasons why the electromagnetic flowmeter does not read

Case introduction

1. Possible reasons why the electromagnetic flowmeter does not keep reading

1. Abnormal power supply

If the power supply voltage of the electromagnetic flowmeter is too low or the fluctuation is large, there will be It may lead to the problem of the bottom number not moving. To do this, the power supply lines need to be checked and replaced with a suitable power supply.

2. Oxidation of the electrode building

The oxidation of the electrode building is one of the main reasons why the electromagnetic flowmeter does not read. If the surface of the electrode building is covered with oxide, an insulating layer will form, preventing charges from passing through the electrode. The solution is to use cleaning fluid or a special brush to completely remove the oxides.

3. The fluid pressure is too low

If the measured fluid pressure is too low, the electromagnetic flowmeter may not work properly, causing the bottom number to not move. At this time, you can increase the fluid pressure or check whether the valve at the inlet of the flow meter is blocked.

4. Signal line failure

The signal line of the electromagnetic flowmeter needs to be connected to the on-site display or control system. If the signal line is poorly connected, open or short-circuited, it may cause the problem of the bottom number not moving. Checking the signal line and replacing the faulty accessories can solve this problem.

2. Solution to electromagnetic flowmeter not running smoothly

1. Replace the electrode building

If the electrode building has been severely oxidized, it cannot be used anymore. At this time, the electrode building needs to be dismantled and replaced with a new one.

2. Replace the power supply

If the power supply voltage is found to be unstable, you need to replace it with a suitable power supply. At the same time, you can also consider using equipment such as voltage stabilizers or UPS to ensure the stability of the power supply.

3. Clean valves and pipes

If the pipes and valves are found to be clogged or stuck, the pipes and valves need to be cleaned. Mechanical cleaning, flushing or chemical cleaning can be used to remove impurities and sediments inside pipes and valves.