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Electronics Manufacturing

Why Does an Analog Multimeter Needle Move Backward When Measuring Voltage?
2026年08月07日 14時46分26秒

An analog multimeter needle moving backward during voltage measurement does not necessarily indicate a defective instrument. Understanding the operating principle, common causes, and proper inspection procedures helps prevent misdiagnosis and unnecessary repairs.

Identifying the causes of short-term power outages using a power analyzer.
2026年08月07日 10時28分40秒

A power quality analyzer can record the entire sequence of events—before, during, and after—a momentary power outage. Based on the captured voltage, current, and waveform data, engineers can pinpoint whether the fault originated from the utility grid or the facility's own electrical system, rather than relying on speculation based solely on external symptoms

Need a simple fix for weak or unstable voltage? Try a DHVN unit today.
2026年08月06日 14時06分28秒

You can easily check for weak or unstable power right at home using a multimeter. After just a few minutes of measuring the voltage, you will be able to determine whether the power supply is experiencing a voltage drop or if the issue lies with the wiring, the outlet, or the appliance itself.

6 early signs of a burnt start capacitor to avoid losing millions
2026年08月06日 10時34分44秒

"Silent capacitor burnout" refers to a phenomenon where a start capacitor gradually loses capacitance without exploding or emitting smoke, making it difficult for the user to detect the issue until the motor has sustained severe damage. The appliance continues to operate but runs sluggishly, overheats, and consumes twice the normal amount of electricity. Without periodic inspections, a component costing only a few tens of thousands of dong could force you to replace the entire motor, air conditioner compressor, or ceiling fan an expense running into the millions.

Can an analog multimeter still measure capacitors?
2026年08月05日 15時30分41秒

An analog multimeter can still be used to quickly check if a capacitor is shorted, open-circuited, or capable of charging and discharging. However, if precise capacitance measurement or an assessment of capacitor quality is required, a digital multimeter or LCR meter will yield more reliable results

Measuring Pump Shaft Speed? When Is It Necessary, and How Should It Be Done Correctly?
2026年08月04日 14時45分15秒

Measuring pump shaft speed helps determine the equipment's actual rotational speed (RPM), allowing for comparison against design specifications to detect issues such as belt slippage, incorrect gear ratios, abnormal motor operation, or failure to achieve the desired flow rate. Depending on operating conditions, engineers may choose a laser tachometer, a contact tachometer, or a stroboscope

How Does Fluke Help Factories Detect Hard-to-Spot Electrical Risks?
2026年07月24日 14時23分04秒

The more high-capacity machinery a factory houses and the more complex its power supply network becomes, the harder it is for routine checks such as voltage measurements or visual inspections of electrical cabinets to fully reflect the safety status.

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