The accuracy of the mass flow controller (MFC) is important to ensure the performance, quality, and efficiency of a flow meter. If an instrument is not calibrated, its performance can decline as a ...

A pH meter measures a pH or the acidity/alkalinity of substances. Most pH meters rely on a glass electrode that measures the number of hydrogen ions in the solution. Usually, pH meters need to be ...

It seems like large-screen cheap meters are really catching on. [TheHWcave] does a very detailed review of a KAIWEETS KM601, which is exactly the same as a few dozen other Chinese brands you can get ...

This video shows the basic calibration of the ETher NDE Eddy Current (ECT) SigmaCheck Conductivity Meter. Calibration should be done whenever the instrument is turned on and should be performed from ...

A precision voltage reference is useful in the lab for checking your multimeters. This post describes the construction of a poor man’s precision voltage reference. It is great for checking any ...

Let's say you're performing a critical calibration or measurement in a bridge configuration. You have your choice of a high-resolution digital multimeter and an analog nullmeter with nanovolt ...

When you pull out that multimeter to measure resistance, you might give some thought as to whether you should use the meter’s two-wire or four-wire probably–if it even has a four-wire option. But you ...