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Sep

2026

Method for Testing Ordinary Light‑Emitting Diodes with a Multimeter

Method for Testing Ordinary Light‑Emitting Diodes with a Multimeter ① An analog multimeter with the ×10kΩ range can be used to roughly judge whether a light-emitting diode is good
14

Sep

2026

Difference between Average-response Multimeters and True RMS Multimeters

Difference between Average-response Multimeters and True RMS Multimeters Fluke digital multimeters and clamp meters are available in average-response and true RMS types. For exampl
14

Sep

2026

Notes on Operation of Handheld Digital Multimeters

Notes on Operation of Handheld Digital Multimeters Handheld digital multimeters feature accurate measurement, convenient readings and complete functions, so they are very popular a
14

Sep

2026

How to Determine the Base Electrode Using a Multimeter

How to Determine the Base Electrode Using a Multimeter ① Assume that we do not know whether the transistor under test is NPN or PNP, nor can we distinguish each electrode. The firs
14

Sep

2026

Maintenance and Servicing of Insulation Resistance Meters

Maintenance and Servicing of Insulation Resistance Meters Insulation resistance meters generally adopt automatic calibration technology. Except for components specified as replacea
14

Sep

2026

Methods of Use and Precautions for Digital Multimeters

Methods of Use and Precautions for Digital Multimeters Digital measuring instruments have become mainstream nowadays and tend to replace analog instruments. Compared with analog in
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Sep

2026

Two Useful Functions of Digital Multimeters

Two Useful Functions of Digital Multimeters This method can check whether the power cord of household appliances is broken, and also locate the breakpoints of internal heating wire
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Sep

2026

Measuring AC and DC with a Multimeter: Operating Instructions

Measuring AC and DC with a Multimeter: Operating Instructions ① Digital Multimeter for AC Voltage Measurement: Connect the black test lead to the COM or ground jack (marked on the
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Sep

2026

Six Common Repair Techniques for Digital Multimeters

Six Common Repair Techniques for Digital Multimeters Digital instruments feature high sensitivity and accuracy and are applied in nearly all types of enterprises. However, their fa
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Sep

2026

Advantages and Drawbacks of Pointer Multimeters and Digital Multimeters

Advantages and Drawbacks of Pointer Multimeters and Digital Multimeters A digital multimeter is an instantaneous‑sampling instrument. It takes one sample every 0.3 seconds to displ
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Sep

2026

On-the-spot In-circuit Resistance Measurement by Digital Multimeter

On-the-spot In-circuit Resistance Measurement by Digital Multimeter (1) Different models of digital multimeters have different full-scale test voltages and open-circuit voltages in
13

Sep

2026

An Introduction to the Resolution of Digital Multimeters

An Introduction to the Resolution of Digital Multimeters Resolution indicates how fine an instrument's measurement results can be. By understanding a meter's resolution, you can de
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Sep

2026

Ten Methods for Fault Diagnosis of Instruments such as Multimeters

Ten Methods for Fault Diagnosis of Instruments such as Multimeters ① Tapping and Pressure Test Method Intermittent operation of instruments is frequently encountered, which is most
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Sep

2026

Common Troubleshooting Procedures for Digital Multimeters

Common Troubleshooting Procedures for Digital Multimeters General troubleshooting of digital multimeters should start with the power supply. For example, if there is no LCD display
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Sep

2026

What is the Function of a Dual-Impedance Digital Multimeter?

What is the Function of a Dual-Impedance Digital Multimeter? This means that when a digital multimeter is placed in a circuit for measurement, it exerts minimal impact on circuit p
13

Sep

2026

Introduction to Methods for Measuring Semiconductors with Digital Multimeters

Introduction to Methods for Measuring Semiconductors with Digital Multimeters ① Diodes The open-circuit voltage of the diode range on a digital multimeter is approximately 2.8 V. T
13

Sep

2026

Brief Analysis of Differences Between Pointer Multimeters and Digital Multime...

Brief Analysis of Differences Between Pointer Multimeters and Digital Multimeters A multimeter, also known as a multi-tester, avometer or multitester, is categorized into analog (p
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Sep

2026

Special Functions & Use Cases for Multimeters

Special Functions & Use Cases for Multimeters ① Is a digital multimeter necessarily better than an analog multimeter? Answer: Digital multimeters have gained rapid adoption due
13

Sep

2026

What Are the Common Application Fields of 6½-Digit Benchtop Multimeters?

What Are the Common Application Fields of 6½-Digit Benchtop Multimeters? A 6½-digit benchtop multimeter is a high-precision electronic measuring instrument widely use
13

Sep

2026

Several Simple Methods for Testing IC Chips with a Multimeter

Several Simple Methods for Testing IC Chips with a Multimeter ① Offline Detection Measure the forward and reverse resistance between each pin of the IC chip and the ground terminal

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