How to maintain and repair smart electromagnetic flowmeters

Intelligent electromagnetic flowmeter should be how to maintain? Intelligent electromagnetic flowmeter faults should be how to repair? Maintenance and fault maintenance is equally important, we can not ignore, we follow the instruments World Network Xiaobian to learn.

Intelligent electromagnetic flowmeter maintenance

1) Always observe the sensor power cable and transmission cable (or wire) for damage and aging, and protect the rubber sheath outside the cable.

2) Regularly (usually six months) scrub the surface of the electrode with a soft cloth to remove dirt or deposits.

3) Remove debris from the upstream straight section of the sensor.

Intelligent electromagnetic flowmeter troubleshooting:

1) The liquid does not flow and has output: 1. The signal transmission cable is connected to the converter and disconnected; 2. The signal cable is disconnected from the electrode connection; 3. The electrode surface is contaminated or an insulating layer is deposited; 4. The grounding is poor or the circuit is broken.

Solution: 1. Connect the cable; 2. Open the sensor and reconnect it; 3. Scrub the electrode surface; 4. Connect the ground wire.

2) No liquid output flow: 1. The signal transmission cable between the converter and the two core wires is reversed; 2. The power supply is not connected or has poor contact; 3. The sensor instrument pipeline, casing, and end face are leaky.

Solution: 1. Reverse the head; 2. Connect the power supply and maintain good contact; 3. Repair the sensor.

3) The output is not stable: 1. The flow field is unstable; 2. The gas contained in the sensor contains large solid blocks; 3. The virtual connection of the electrical connection; 4. The grounding is bad; 5. The electrode leakage solution: 1. Renovation Pipeline, or increase the installation of false sensors; 2. Normal phenomenon; 3. Check the wiring, connect the wire; 4. Connect the ground wire; 5. Repair the sensor.

4) The error is too large: 1. The zero point is too high; 2. It is not completely filled with liquid; 3. The distortion of the power supply is too large; 4. The grounding is poor.

Solution: 1. Re-adjust the zero point; 2. Improve the pipeline conditions, the sensor is always full of liquid; 3. Improve the power supply conditions, in line with normal working conditions; 4. Connect the ground wire.