The turbidity method is based upon a comparison of intensity of light scattered by a sample under defined conditions with…
ORP stands for Oxidation-Reduction Potential. In practical terms, it is a measurement to oxidize contaminants. It's as simple as that…
Conductivity is used to measure the ability of an aqueous solution to carry an electrical current. Specific conductance is the…
Dissolved oxygen (DO) content in water is measured using a membrane electrode. To insure proper operation, the DO probe's membrane…
A pH meter calibration is performed by measuring a series of reference standards, so-called pH buffers that have known and accurate pH…
Most instrument manuals state there is no calibration of the temperature sensor, but the temperature sensor must be checked to…
Calibration is defined as “a test during which known values of measurand are applied to the transducer and corresponding output…
Instrumentation Question bank which helps Instrument Engineers to prepare for Field Instrumentation Interview Questions and Answers in Oil and Gas…
Anatomy of a Feedback Control System Here is the classic block diagram of a process under PID Control. PID Controller…
The European standard, also known as the DIN or IEC standard, is considered the world-wide standard for Pt100. This standard,…
