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Tel: +8618822802390
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E-mail: admin@gvda-instrument.com
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Add: Room 610-612, Huachuangda Business Building, District 46, Cuizhu Road, Xin'an Street, Bao'an, Shenzhen
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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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