Measuring instruments may be classified as either absolute instruments or secondary instruments. Absolute Instruments This type of instruments gives the…
There are three categories of pressure measurement, namely absolute pressure, gauge pressure and differential pressure. The absolute pressure is the…
The digital voltmeter (DVM) displays measurement of ac or dc voltages as discrete numbers instead of a pointer deflection on…
A Multimeter or volt-ohm-milliammeter (VOM) is an instrument used to measure current, voltage, and resistance. It can be used for…
In order to carry out the verification process proficiently, the person conducting the inspection and test must be in possession…
The megohmmeter or megger is a portable deflection instrument widely used to check the insulation resistance of electrical cables and…
For anyone performing a measurement using a particular instrument, it usually matters to know whether the instrument is calibrated or…
The Function of an Oscilloscope An oscilloscope is an electronic instrument that presents a graphical display of its input voltage…
The Function of a Pulse Generator A pulse generator is an electronic instrument used to generate pulses for use in…
Specific attention must be paid to instrument grounding, especially where field instruments are connected to a computer or microprocessor based…
