Electromagnetic flowmeter electrode line how to measure the good and bad

The electromagnetic flowmeter electrode wire is the part of the electromagnetic flowmeter sensor that transmits electrical signals to the computer board program control system. It is one of the important components of the electromagnetic flowmeter.

2. Criteria for judging the quality of electromagnetic flowmeter electrode wires

1. The voltage of the terminal terminals under the working condition of the electromagnetic flowmeter should comply with the regulations in the technical instructions, especially the special cable The voltage between the two signal lines should be within the specified range. If the voltage is unstable or the voltage deviation is too large, it indicates that there may be a problem with the electromagnetic flowmeter electrode wire.

2. Use a digital multimeter to measure the internal resistance of the electrode wire. If the measured value exceeds the range of the technical specification, it means that the electrode wire may have problems such as short circuit or open circuit.

3. Use a multimeter to check the insulation performance of the electrode wire. After plugging in the battery, put the two test leads on both ends of the electrode wire. The multimeter cannot show current, otherwise it means there is a short circuit or short circuit in the electrode wire. The problem of poor insulation performance.

3. Steps to measure the quality of the electromagnetic flowmeter electrode wire

1. Turn off the electromagnetic flowmeter and unplug the power and signal wires on the electromagnetic flowmeter.

2. Use a digital multimeter to test the insulation performance at both ends of the electrode wire. If the resistance value measured according to the standard range is no current or close to zero, the insulation performance is good.

3. Set the multimeter to the ohm range, connect the positive and negative poles of the meter to both ends of the electromagnetic flowmeter electrode wire, and observe whether the resistance value is within the specified standard range. If it exceeds the specified range, It means there is a problem with the electrode wire and needs to be replaced and repaired.

4. How to maintain the electrode wire of electromagnetic flowmeter?

1. Perform regular maintenance on the electromagnetic flowmeter.

2. Clean the electrode wire of the electromagnetic flowmeter regularly, and be careful not to use wiping agents, lubricants and other corrosive substances to clean it, so as not to affect the service life of the electrode wire.

3. Avoid pulling the cables or wires of the electromagnetic flowmeter to avoid breaking the connecting wires or signal wires.

The quality of the electromagnetic flowmeter electrode wire is related to the measurement accuracy of the electromagnetic flowmeter, so it needs to be tested and maintained regularly. If there is a problem with the electrode wire, it must be replaced or repaired in time to ensure the normal operation of the electromagnetic flowmeter.