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A systematic troubleshooting guide for checking a refrigerant pressure gauge that does not respond during the vacuuming process, focusing on connections, reset procedures, and zero-point calibration.

A terminal lug inside an electrical cabinet may gradually heat up—a change almost imperceptible to the naked eye. A motor bearing begins to rise in temperature even before any abnormal noise occurs. These changes often manifest quite early, yet maintenance teams typically only begin investigating the cause once the equipment shuts down or a circuit breaker trips

A multimeter can measure currents in the microampere (µA) range, but the reading captures only a momentary value. When is a DMM sufficient, and when is a specialized current meter required?

Vì đúng mẫu máy chưa chắc đã đúng nhu cầu. Bán một chiếc máy hiện sóng là đưa khách hàng một thiết bị, còn tư vấn đúng chiếc máy để tìm ra căn nguyên vấn đề của họ mới là phần việc thật sự của một người bán hàng kỹ thuật. Có lẽ đó cũng là lý do giúp anh Bảo giữ vị trí Best Sale EMIN Group năm 2025, không chỉ nhờ hiểu khách hàng, mà còn nhờ vốn kiến thức sâu về những sản phẩm Tektronix mà EMIN đang phân phối.

A circuit board may function normally yet still consume significant power in standby mode. Particularly in IoT devices, wireless sensors, battery-operated equipment, or low-power control circuits, a difference of just a few microamperes in sleep current can significantly impact battery life

A Type K temperature probe may gradually become less accurate after prolonged use due to aging, oxidation, and changes in the probe’s thermoelectric characteristics. The higher the temperature and the longer the exposure time, the more noticeable these effects can become.

Mr. Le Van Truong, Head of the Technical Department at EMIN, shares insights into the processes behind a project handover—ranging from site surveys and risk management at the factory to how a technical lead makes on-the-spot decisions and turns every trip into a shared learning experience for the entire department.

Gloss is not a factor separate from color; the two characteristics work together to determine the final appearance of the printed product. Systematic measurement enables businesses to better control surface quality, detect variations early, and maintain consistency in the finished product.

Multispectral cameras capture spectral data across multiple wavelengths, whereas standard cameras primarily serve to record visual images.

Color measurement can be performed through visual observation or with the use of measuring instruments. Regardless of the method, it is important to clearly define the sample being evaluated, the viewing or measurement conditions, the comparison criteria, and how the resulting data will be interpreted.