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11

Sep

2026

Can a Proximity Switch Be Directly Tested with a Multimeter?

Can a Proximity Switch Be Directly Tested with a Multimeter? ① Methods for Testing Proximity Switches with a Multimeter We know proximity switches fall into two types: NPN and PNP.
11

Sep

2026

Introduction to the Method of Measuring Thyristors with a Multimeter

Introduction to the Method of Measuring Thyristors with a Multimeter Thyristors are divided into two types: unidirectional thyristors and bidirectional thyristors, both with three
11

Sep

2026

Nine Major Principles for Selecting a Multimeter

Nine Major Principles for Selecting a Multimeter ① Functions In addition to the five basic functions for measuring AC/DC voltage, AC/DC current and resistance, digital multimeters
11

Sep

2026

Ten Practical Tips for Using a Multimeter

Ten Practical Tips for Using a Multimeter ① Before use, verify that the function selector switch is set to the position corresponding to the quantity to be measured and that the te
11

Sep

2026

Introduction to the Selection of Digital Multimeters

Introduction to the Selection of Digital Multimeters Digital multimeters dominate the current market. It is wise to choose one according to your actual needs and prioritize product
11

Sep

2026

How to Choose a Multimeter Suitable for Your Use

How to Choose a Multimeter Suitable for Your Use The performance of a multimeter mainly covers five aspects: measurement accuracy, extended functions, reliability, durability and p
11

Sep

2026

Determining the Polarity of Electrolytic Capacitors with a Multimeter

Determining the Polarity of Electrolytic Capacitors with a Multimeter Depending on the capacitance value of the electrolytic capacitor, the R×10, R×100 or R×1K re
11

Sep

2026

Introduction to the Method of Measuring Current with a Multimeter

Introduction to the Method of Measuring Current with a Multimeter The most critical point to bear in mind when measuring current with a multimeter is not to confuse the current mea
11

Sep

2026

Diagnosing Automotive Faults by Clever Use of Multimeter Voltage Drop

Diagnosing Automotive Faults by Clever Use of Multimeter Voltage Drop For maintenance technicians, diagnosing faults by measuring voltage with a multimeter is commonplace. However,
11

Sep

2026

Operation and Maintenance of General Multimeters

Operation and Maintenance of General Multimeters Multimeters come in many structural forms with different layouts of knobs and switches on the panel. Therefore, before using a mult
10

Sep

2026

Testing Insulation Resistance of Power Cables with a Megohmmeter

Testing Insulation Resistance of Power Cables with a Megohmmeter 1. Preparations for Measuring Insulation Resistance of Power Cables with a Megohmmeter A 2500V megohmmeter (equippe
10

Sep

2026

Field Test of Energy Meters and Current Transformers with Clamp Multimeters

Field Test of Energy Meters and Current Transformers with Clamp Multimeters Portable clamp multimeters enable simple, convenient and accurate on-site detection of current transform
10

Sep

2026

Alternative Uses of Multimeters: Precautions for Automobile Maintenance

Alternative Uses of Multimeters: Precautions for Automobile Maintenance I. Measuring Automotive Resistance with a Multimeter ① When measuring resistance, the component under test o
10

Sep

2026

Working Principle of Capacitor Testing with an Analog Multimeter

Working Principle of Capacitor Testing with an Analog Multimeter Many analog multimeters cannot directly measure the capacitance of capacitors. The method shared here enables an an
10

Sep

2026

Operating Method for Inductance Measurement with a Multimeter

Operating Method for Inductance Measurement with a Multimeter ① Selection of Measurement Range Since the DC resistance of the copper wire in an inductor coil is very small and almo
10

Sep

2026

How to Check Whether a Circuit is Earthed with a Digital Multimeter

How to Check Whether a Circuit is Earthed with a Digital Multimeter ① Distinguish live wire, neutral wire and earth wire: Set the multimeter to the AC voltage range higher than 220
10

Sep

2026

Leakage Measurement Methods and Notes for Digital Multimeters

Leakage Measurement Methods and Notes for Digital Multimeters Generally, use the AC voltage range to measure the equipment's voltage to ground. With power disconnected, use the res
10

Sep

2026

Forbidden Operations When Using Analog Multimeters

Forbidden Operations When Using Analog Multimeters ① Ensure correct position selection.When measuring AC voltage, first turn the selector switch to the AC voltage range; when measu
10

Sep

2026

Structural Feature Comparison of Analog and Digital Multimeters

Structural Feature Comparison of Analog and Digital Multimeters ① Structural Composition of Analog Multimeters It usually consists of a meter movement, scale plate, housing, test l
10

Sep

2026

Several Basic Concepts of Multimeter Internal Resistance

Several Basic Concepts of Multimeter Internal Resistance ① Meter movement internal resistance: This is the most basic parameter of a multimeter. It refers to the resistance seen lo

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