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Public places electrical safety

Measurements After the installation passes visual inspection, electrical measurements are necessary to ensure operational safety. Earth resistance is measured at the main earth electrode. If there is space available and ground allows…

ADT875 Series Dry Block Calibrator

Additel’s New 875 Dry Block Calibrator series Provides Portability, Ruggedness, and Precision Over a Wide Temperature Range Zedflo along with  Additel Corporation introduces their new ADT875 Dry Block Calibrator series. It consists of…

Metrel PQA: measuring PV inverter efficiency

Amongst the many applications our power quality analysers (PQAs) are suitable for, is also measurement of power efficiency of 1- and 3-phase inverters in photovoltaic (PV) electrical installations. Supported analysers include the…

How do Pipes Work?

You might think that the way that pipes work is pretty easy – after all they are essentially just tubes that water and gas run through. In fact though, pipes have a…

Choosing a suitable Temperature Switch

The right temperature switch is usually calibrated to react to any changes that occur in the heat levels of an application with immediate effect. This occurs because the device has a component…

Is Instrument Calibration All That Important?

Before we start, what is involved in instrument calibration? It involves comparing the measurements of two instruments, one with a known correctness or magnitude against another of unknown magnitude or which the…

Calibrating Pressure Switches In 5 Easy Steps

Pressure switch technology has numerous practical applications, but in order to ensure the optimal functionality of these adjustable devices, calibrating them correctly is of chief importance. First and foremost, don’t start fiddling…