The difference between clamp meter and multimeter

In the chemical industry, measurement and control instrumentation is an important part of ensuring production safety and efficiency. The clamp meter and multimeter as two commonly used instruments, often confused use. This article provides an in-depth analysis of definitions, working principles, and application scenarios to help you correctly distinguish between the two instruments and choose the most suitable tool.

1. Instrument Definition and Working Principle

1. Shovel table definition and working principle

Definition: Clamp meter, also known as current clamp meter, is a current measuring instrument that uses magnetic field effect. By measuring the current change in the coil, the magnitude of the measured current is induced.

Features:

There is
• no need to disassemble the line and directly use the clamp to fix it around the wire.
The
• measurement will not interrupt the current and will not introduce additional load.
• Commonly used to measure fixed line current, such as motor, motor control circuit, etc.

2. Multimeter definition and working principle

Definition: Multimeter, is a set of a variety of measurement functions in one instrument, can measure current, voltage, resistance and other parameters.

Features:

• With a switch and internal protection circuit, the use of the need to follow the instructions to set the range.
• In different states to switch the measurement function, the use of a wide range.
• prevail used for on-site debugging, complex circuit measurement and other occasions.

2. Application Scenarios Analysis and Comparison

1. Measurement object of different

• Clamp meter: suitable for measuring fixed line in the current, especially the need for fast, no load measurement.
• Multimeter: suitable for measuring diversified parameters, such as current, voltage, resistance, etc., especially in complex circuits.

2. Work environment adaptability

• Clamp meter: usually in constant current environment, such as motor, motor control circuit, etc.
• Multimeter: adaptable, can be used in different environments, but need to pay attention to environmental parameter settings.

3. Measurement accuracy and complexity

• Clamp meter: Because of its simple structure and high precision, it is suitable for accurate measurement.
• Multimeter: versatile, accuracy is affected by the selected range and internal circuit, suitable for complex measurement needs.

3. Selection Instrument Recommendations

When selecting a gauge, make a decision based on the following factors:

1. Measurement object: if it is a fixed line of current measurement, the priority is to select the clamp meter; if it involves voltage, resistance and other multi-parameter measurement, select a multimeter is more appropriate.
2. Working environment: If the measurement object is in a complex or uncertain environment, it is recommended to use a multimeter.
3. Measurement complexity: If you need high-precision measurement, select the clamp meter; if you need multi-function measurement, select the multimeter.

4. routine maintenance and calibration

No matter which instrument you choose, regular inspection and calibration are key steps to ensure the accuracy of your measurements. It is recommended to carry out regular maintenance in accordance with the instructions to ensure that the instrument is in the best condition.

Summary

The clamp meter and the multimeter have their own applicable scenarios and characteristics. Choosing the right instrument can not only improve the measurement efficiency, but also ensure the safety of production and the reliability of equipment operation. I hope the analysis of this article can help you make the right choice, and then improve your work.