Contact Us
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Tel: +8618822802390
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E-mail: admin@gvda-instrument.com
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WhatsApp: 8618822802390
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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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07
Apr
2022
what is a multimeter used for at home
What is a multimeter used for at home? 1. Measure the voltage. (Home voltage AC gear, original voltage DC gear) 2. Check whether the line is connected. (with buzzer) 3. Distin
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07
Apr
2022
How to use a multimeter to find short circuits
How to use a multimeter to find short circuits? Short-circuit measurement is very common in electrical maintenance and component fault location. When measuring short-circuit fault
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07
Apr
2022
How to use a multimeter to find leakage current
How to use a multimeter to find leakage current? The leakage measurement is mainly to detect whether the live wire, neutral wire and the wall are well insulated, and whether the p
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07
Apr
2022
The accuracy of the digital multimeter
The accuracy of the digital multimeter The accuracy of a digital multimeter is not the same as the display resolution, and the accuracy refers to the maximum allowable error limit
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07
Apr
2022
Auto and Manual Range of the multimeter
Auto and Manual Range of the multimeter When choosing a digital multimeter, you need to know the minimum range, maximum range, and resolution you need. Autoranging measurement
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07
Apr
2022
Resolution of the multimeter
Resolution of the multimeter Resolution refers to the minimum change in the input signal that can make the output signal change. When the range of the DMM is reduced, the resoluti
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07
Apr
2022
Multimeter counting
Multimeter counting Now, manufacturers have begun to use "counts" to specify display capabilities, as "bits of resolution" are often confusing to users. A digital multimeter's cou
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07
Apr
2022
The display digits of the multimeter
The display digits of the multimeter Generally speaking, most manufacturers use bits of resolution to indicate the display capability of a DMM. For example, Keysight DMMs have res
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07
Apr
2022
Five Elements to Consider Before Buying a Digital Multimeter
Five Elements to Consider Before Buying a Digital Multimeter Before buying a digital multimeter, you need to consider 5 key specifications: number of digits displayed count R
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07
Apr
2022
Introduction of pointer multimeter
Introduction of pointer multimeter ⒈ The reading accuracy of the pointer table is poor, but the process of the pointer swing is relatively intuitive, and its swing speed can somet
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07
Apr
2022
Instructions for use of digital multimeter
Instructions for use of digital multimeter ⒈The instrument is equipped with an automatic power cut-off circuit. When the working time of the instrument is about 30 minutes to 1 ho
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07
Apr
2022
On-off test of digital multimeter
On-off test of digital multimeter ⒈Insert the black test lead into the COM jack and the red test lead into the V/Ω jack (the polarity of the red test lead is "+"), set the functio
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07
Apr
2022
Capacitance Testing of Digital Multimeters
Capacitance Testing of Digital Multimeters Before connecting the capacitor under test, note that it takes time to reset to zero each time the range is changed, and the presence of
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07
Apr
2022
Introduction of resistance gear of digital multimeter
Introduction of resistance gear of digital multimeter; One of the methods that can be used to judge the quality of resistors, diodes, and triodes. When the actual resistance value
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07
Apr
2022
Introduction to the current gear of the digital multimeter
Introduction to the current gear of the digital multimeter Connect the meter in series to the circuit to measure and monitor the current. If the current deviates far from the norm
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07
Apr
2022
Introduction to the voltage Gear of the multimeter
Introduction to the voltage Gear of the multimeter: When testing or manufacturing, it can be used to measure the voltage of each pin of the device and compare it with the normal v
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07
Apr
2022
How to care for your digital multimeter
How to care for your digital multimeter The multimeter is a precision electronic instrument, do not change the circuit at will, and pay attention to the following points: ⒈ Do no
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07
Apr
2022
how to repair digital multimeter
how to repair digital multimeter Digital multimeters have high sensitivity and accuracy and are used in almost all businesses. However, due to the multi-factors and the randomness
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07
Apr
2022
Digital Multimeter Repair Tips
Digital Multimeter Repair Tips For a faulty instrument, first check and determine whether the fault phenomenon is common (all functions cannot be measured) or individual (indivi
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07
Apr
2022
How to choose a digital multimeter
How to choose a digital multimeter A digital multimeter is the most basic test tool for electronic enthusiasts. A good digital multimeter can not only measure various electrical p
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