Latest News
What Is The Best-selling Wood Moisture Meters On The Market
May 25, 2026
2026 GVDA New Arrive 3 Lens 10.1 Inch LCD Electron Digital Microscope, 2500X ...
Jan 12, 2026
2025 GVDA Develop New 4.3inch IPS HD Industrial Endoscope Inspection Camerab ...
Apr 28, 2025
2024 New Arrive GVDA Portable 72W Led Light Soldering Iron GD301 in Stocks
Aug 08, 2024
Contact Us
-
Tel: +8618822802390
-
E-mail: admin@gvda-instrument.com
-
WhatsApp: 8618822802390
-
Add: Room 610-612, Huachuangda Business Building, District 46, Cuizhu Road, Xin'an Street, Bao'an, Shenzhen
-
26
May
2023
How To Detect Faults With Clamp Ammeter in DC Grounding System
How to Detect Faults with Clamp Ammeter in DC Grounding System If there is a problem with the grounding of the DC bus system of the transformer, substation, and power distributi...
-
26
May
2023
Clamp Ammeter To Check Electric Leakage
Clamp ammeter to check electric leakage Clamp ammeter is the most practical electrical tool for measuring low-voltage lines. Its main features are high precision and good stabil...
-
25
May
2023
What Is The Use Of Multimeter At Home
What is the use of multimeter at home For an electrician, a multimeter can judge almost 80% of the faults. But for the family, there is a multimeter. When the home circuit fails...
-
25
May
2023
How To Use A Multimeter To Detect The Leakage Of Live Wire Or Neutral Wire
How to use a multimeter to detect the leakage of live wire or neutral wire Commonly used multimeters are divided into pointer multimeters and digital multimeters; most pointer m...
-
25
May
2023
How To Measure AC And DC With A Multimeter
How to measure AC and DC with a multimeter The multimeter should measure the effective value when measuring AC and measuring DC, that is, the root mean square value. How to meas...
-
25
May
2023
How To Judge The Quality Of 15000μF Large Capacitor With A Multimeter
How to judge the quality of 15000μF large capacitor with a multimeter If the 15000μF large capacitor is good or bad, if you use the multimeter resistance file to judge whether i...
-
25
May
2023
Which Kind Of Multimeter For Electricians Is Suitable For Families And Has Hi...
Which kind of multimeter for electricians is suitable for families and has higher cost performance It is still the pointer type MF-47. Although it is old and has never been impr...
-
24
May
2023
Using Infrared Thermometer Correctly To Diagnose Equipment Faults
Using Infrared Thermometer Correctly to Diagnose Equipment Faults The core problem of infrared diagnosis of equipment faults recommended by infrared thermometers is to accuratel...
-
24
May
2023
Precautions For Infrared Thermometer in Equipment Fault Diagnosis
Precautions for Infrared Thermometer in Equipment Fault Diagnosis Influence of Atmospheric Attenuation: The infrared radiation energy on the surface of the electrical equipment ...
-
24
May
2023
Analyzing The Emissivity Of Infrared Thermometers
Analyzing the Emissivity of Infrared Thermometers Emissivity is the ratio of the radiant energy of an actual object to a blackbody at the same temperature under the same conditi...
-
24
May
2023
Working Principle Of Infrared Thermometer
Working principle of infrared thermometer Understanding the working principle, technical indicators, environmental working conditions, operation and maintenance of infrared ther...
-
24
May
2023
Working Principle And Application Of Infrared Thermometer
Working Principle and Application of Infrared Thermometer 1 Overview In the production process, infrared temperature measurement technology plays an important role in product qu...
-
23
May
2023
How To Measure Whether The Ground Wire Is Well Grounded
How to measure whether the ground wire is well grounded There are three ways to measure whether the ground wire is in good contact: 1. Multimeter measurement, multimeter is also...
-
23
May
2023
The Reason Why The Multimeter Cannot Measure The Capacitance Value
The reason why the multimeter cannot measure the capacitance value 1. The multimeter and the capacitor have no capacity First of all, it is necessary to rule out whether the mul...
-
23
May
2023
Digital Multimeter Resistance File Test Diode Forward And Reverse Has No Resi...
Digital multimeter resistance file test diode forward and reverse has no resistance The digital multimeter converts the measured resistance value through the A/D conversion chip...
-
23
May
2023
What Are The Repair Skills Of Digital Multimeter
What are the repair skills of digital multimeter For a faulty instrument, first check and judge whether the fault phenomenon is common (all functions cannot be measured) or indi...
-
23
May
2023
Troubleshooting Of Digital Multimeter
Troubleshooting of digital multimeter AC and DC voltage and current measurement, triode magnification and performance measurement, etc. Some digital multimeters have added funct...
-
22
May
2023
AC Clamp Ammeter Measuring Current Standard
AC clamp ammeter measuring current standard In the line with large current, it is generally safe to use clamp ammeter to measure; First set the multimeter to the current gear, a...
-
22
May
2023
How To Calibrate The Clamp Ammeter
How to calibrate the clamp ammeter Measuring instruments commonly used by electricians include shaker meters, multimeters, and clamp ammeters. If these instruments are not used ...
-
22
May
2023
Why Use A Clamp Ammeter To Measure The Current Every Time A Motor Is Installed?
Why use a clamp ammeter to measure the current every time a motor is installed? What the clamp ammeter measures is the actual current of the phase line of one phase, because the...



















