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21

Jul

2026

How to Accurately Identify Three Pins of a Transistor with a Multimeter

How to Accurately Identify Three Pins of a Transistor with a Multimeter The b-pole of a transistor is easy to measure, but how can we determine which one is c and which one is e? H
21

Jul

2026

The following points need to be considered before purchasing a multimeter:

The following points need to be considered before purchasing a multimeter: 1. The reading accuracy of pointer meters is poor, but the process of pointer oscillation is relatively i
21

Jul

2026

Key Notes for Using the Voltage Drop Measurement Method with a Multimeter:

Key Notes for Using the Voltage Drop Measurement Method with a Multimeter: (1) The full-scale test voltage and open circuit voltage of different models of digital multimeters with
21

Jul

2026

Simple Methods to Judge Inverter Faults with Multimeter

Simple Methods to Judge Inverter Faults with Multimeter A frequency converter is a device that modifies the operating frequency of a motor to control communication. With the popula
21

Jul

2026

Maintenance and Servicing of Insulation Resistance Tester

Maintenance and Servicing of Insulation Resistance Tester 1, General maintenance and upkeep 1) Regularly clean the casing of the instrument with a damp cloth and neutral cleaning a
21

Jul

2026

Points to note when using the voltage drop measurement method with a multimeter:

Points to note when using the voltage drop measurement method with a multimeter: (1) The full-scale test voltage and open circuit voltage of different models of digital multimeters
21

Jul

2026

Measuring In-circuit Resistance with a Multimeter

Measuring In-circuit Resistance with a Multimeter Before describing the load voltage reduction measurement method, it is necessary to first introduce the principle of measuring res
21

Jul

2026

What are the structural features of analog multimeters

What are the structural features of analog multimeters A multimeter, also known as an analog multimeter, uses a sensitive electromagnetic DC ammeter (microampere meter) as its dial
21

Jul

2026

Methods and Steps for Measuring AC Voltage with Multimeter

Methods and Steps for Measuring AC Voltage with Multimeter 1, Method for measuring AC voltage: 1. Insert the black probe into the COM socket and the red probe into the V/Ω so
21

Jul

2026

Precautions for Measuring DC Voltage with Multimeter

Precautions for Measuring DC Voltage with Multimeter This is a method of measuring the DC supply voltage and the operating voltage of peripheral components using a DC voltage range
20

Jul

2026

Usage and Precautions of Analog Multimeters and Oscilloscopes

Usage and Precautions of Analog Multimeters and Oscilloscopes (1) Mechanical zero position adjustment: Before use, check whether the pointer is at zero position. If it is not at ze
20

Jul

2026

Judge Capacitor Quality by Multimeter

Judge Capacitor Quality by Multimeter This is a detection method that detects the DC resistance of each pin of the IC in the circuit, the AC/DC voltage to ground, and the total ope
20

Jul

2026

Detecting Open Circuit Faults in Lighting Circuits with Multimeter

Detecting Open Circuit Faults in Lighting Circuits with Multimeter When the lighting circuit is open, there is no voltage in the circuit, the lighting does not light up, and the el
20

Jul

2026

Starting Points for Troubleshooting Digital Multimeters

Starting Points for Troubleshooting Digital Multimeters 1, Appearance inspection You can touch the temperature rise of the battery, resistor, transistor, and integrated block with
20

Jul

2026

Special Usage Skills of Digital Multimeters

Special Usage Skills of Digital Multimeters 1, The structure of a digital multimeter A digital multimeter is composed of a digital voltmeter and corresponding functional conversion
20

Jul

2026

Range Selection and Measurement Error Analysis of Multimeter Gears

Range Selection and Measurement Error Analysis of Multimeter Gears Human error in reading is one of the reasons that affect measurement accuracy. It is inevitable, but can be minim
20

Jul

2026

Repair Skills of Digital Multimeters & Working Principle of Multimeters

Repair Skills of Digital Multimeters & Working Principle of Multimeters If all gears cannot work, the power supply circuit and A/D converter circuit should be checked carefully
20

Jul

2026

Usage Methods of Analog Multimeter

Usage Methods of Analog Multimeter Familiar with the panel (1) Selection of sockets: The red test probe should be connected to the socket marked with a "+" symbol, and th
20

Jul

2026

Fault Detection Procedures and Precautions for Multimeters

Fault Detection Procedures and Precautions for Multimeters Steps for fault detection of multimeter (1) Turn the range of the tested meter to the lowest range of DC voltage; (2) Mea
20

Jul

2026

A multimeter consists of three main parts: meter head, measuring circuit and ...

A multimeter consists of three main parts: meter head, measuring circuit and selector switch. (1) Header: It is a highly sensitive magneto electric DC current meter, and the main p

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