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20

Dec

2025

Critical Precautions and Operating Principles for the hFE Range of a Multimeter

Critical Precautions and Operating Principles for the hFE Range of a Multimeter The hFE mode is mainly used to measure the amplification factor β value. Before measurement, it
19

Dec

2025

Verifying the Functional Condition of Resistors, Capacitors, Diodes, and Bipo...

Verifying the Functional Condition of Resistors, Capacitors, Diodes, and Bipolar Junction Transistors Using a Multimeter 1. The fault of resistor (R) is that the actual resistance
19

Dec

2025

Selection of Analog Multimeters and Digital Multimeters

Selection of Analog Multimeters and Digital Multimeters 1. The reading accuracy of pointer meters is poor, but the process of pointer oscillation is relatively intuitive, and the a
19

Dec

2025

Three Critical Precautions and Operating Principles for Measuring Variable Re...

Three Critical Precautions and Operating Principles for Measuring Variable Resistors Using a Multimeter There are many issues that need to be paid attention to when using adjustabl
19

Dec

2025

Two Methods and Operating Procedures for Resistance Measurement Using a Multi...

Two Methods and Operating Procedures for Resistance Measurement Using a Multimeter There are two main types of multimeters, which can be divided into digital multimeters and pointe
19

Dec

2025

Multimeter Testing Methods for General-Purpose Light-Emitting Diodes

Multimeter Testing Methods for General-Purpose Light-Emitting Diodes Light emitting diode (LED) is a type of light emitting device that directly injects current. It is the result o
19

Dec

2025

Introduction to Verifying the Functional Condition of Sensors Using a Multimeter

Introduction to Verifying the Functional Condition of Sensors Using a Multimeter 1. The sensor manufacturer provides the sensor output sensitivity and power supply voltage at the f
19

Dec

2025

Critical Considerations for Resistor Testing Procedures Using a Multimeter

Critical Considerations for Resistor Testing Procedures Using a Multimeter What is the detection method for resistors? It may sound simple, but it's not that simple either. In
19

Dec

2025

Key Considerations for Resistor Testing Methods Using a Multimeter

Key Considerations for Resistor Testing Methods Using a Multimeter What is the detection method for resistors? It may sound simple, but it's not that simple either. In addition
19

Dec

2025

Measurement of MOS Field-Effect Transistors (MOSFETs) Using a Digital Multimeter

Measurement of MOS Field-Effect Transistors (MOSFETs) Using a Digital Multimeter There are domestically produced 3D01, 4D01, and Nissan's 3SK series for N-channel. Determinatio
19

Dec

2025

Critical Precautions for Operating a Clamp Multimeter

Critical Precautions for Operating a Clamp Multimeter 1. Before using a digital multimeter, carefully read the user manual to familiarize yourself with the functions of the power s
18

Dec

2025

How to Identify the Three Pins of a Bipolar Junction Transistor (BJT) Using a...

How to Identify the Three Pins of a Bipolar Junction Transistor (BJT) Using a Multimeter? 1. Identify the base and determine the transistor type (NPN or PNP) For PNP transistors, t
18

Dec

2025

How to Verify the Functional Condition of a Relay Using a Digital Multimeter

How to Verify the Functional Condition of a Relay Using a Digital Multimeter (1) Directly detect with capacitor mode Some digital multimeters have the function of measuring capacit
18

Dec

2025

How to Test the Condition of a Relay with a Digital Multimeter?

How to Test the Condition of a Relay with a Digital Multimeter? By dividing the coil into two parts and using a resistor block, the resistance of the coil can be easily measured, u
18

Dec

2025

Introduction to Maintenance Methods for Digital Multimeters

Introduction to Maintenance Methods for Digital Multimeters For a faulty instrument, the first step is to check and distinguish whether the fault phenomenon is common (all function
18

Dec

2025

To prevent damage to the multimeter, please note the following precautions:

To prevent damage to the multimeter, please note the following precautions: 1. In most cases, damage to a digital multimeter is caused by measurement gear errors. For example, when
18

Dec

2025

Structure, Operation, and Operating Procedures of a Multimeter

Structure, Operation, and Operating Procedures of a Multimeter 1. The basic structure and appearance of a multimeter A multimeter mainly consists of three parts: an indicator, a me
18

Dec

2025

How to Perform Proper Maintenance for an Insulation Resistance Multimeter?

How to Perform Proper Maintenance for an Insulation Resistance Multimeter? The insulation resistance multimeter is an advanced intelligent precision instrument. Unless you are an a
18

Dec

2025

Methods and Operating Procedures for Checking the Condition of a Frequency Co...

Methods and Operating Procedures for Checking the Condition of a Frequency Converter with a Multimeter As is well known, there are many protection functions, such as overcurrent, o
18

Dec

2025

Methods, Steps, and Operating Procedures for AC Voltage Measurement with a Mu...

Methods, Steps, and Operating Procedures for AC Voltage Measurement with a Multimeter Measurement method of AC voltage 1. Insert the black probe into the COM socket and the red pro

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