The grounding resistance of the electromagnetic flowmeter should be less than 10 ohms to ensure safety and accurate readings. Too large or too small will affect the reading.
1. What is grounding resistance?
Ground resistance refers to the resistance between the ground wire electrode and the ground.
2. What is the function of grounding resistance?
The role of ground resistance is to ensure the safety of electrical equipment. It can quickly discharge the current on the live parts of the electrical equipment through the grounding wire when the electrical equipment fails, thereby protecting personal safety and equipment safety.
3. Within what range should the grounding resistance of the electromagnetic flowmeter be kept?
The grounding resistance of the electromagnetic flowmeter should be kept within a range of less than 10 ohms. If the grounding resistance is too large or too small, the readings of the electromagnetic flowmeter will be inaccurate. Therefore, it is recommended to use a multimeter to regularly detect the grounding resistance of the electromagnetic flowmeter.
4. How to reduce ground resistance?
Methods to reduce grounding resistance are:
1. Select a new grounding point;
2. Increase the number of grounding electrodes;
3. Add chemicals around the ground electrode;
4. Increase soil moisture around the ground electrode.
5. Advantages of electromagnetic flowmeters
Electromagnetic flowmeters adopt the most commonly used physical principle in industrial sites - Faraday's law of electromagnetic induction, and are suitable for flow measurement of different pipe diameters. It has the advantages of stable measurement, high accuracy, and easy maintenance, and is widely used in industrial production.
Ground resistance is one of the important parameters to ensure the safety of electrical equipment. Especially for electromagnetic flowmeters and other instrument equipment, the ground resistance should be kept less than 10 ohms. within the range. Through reasonable maintenance and testing, the normal operation and accurate readings of the electromagnetic flowmeter can be guaranteed, while ensuring the safety and stability of industrial production.
Hangzhou Economic Development Area，Hangzhou 310018，China
