What is Loop Checking?
The Loop checking is defined as pre-Commissioning activity which is initiated after installation of instruments in the field and carry out the instrument loop checks between installed field instrument and respective control…
Basics of Loop Checks
The term “loop” can refer to the entire “control loop” from primary element (sensor) through the transmitter, and controller, to the valve positioner, and the final control element (valve). The…
How a 4-20mA Transmitter Works?
A sensor is an input device that provides a usable output in response to the input measurand. A sensor is also commonly called a sensing element, primary sensor, or primary detector.…
4-20 mA Transmitter Wiring Types : 2-Wire, 3-Wire, 4-Wire
Transmitters are available with a wide variety of signal outputs. The 4-20mA analogue signal is by far the most commonly used in industrial applications. Several physical 4-20mA wiring options exist.…
Why Turndown Ratio is important when Selecting a Flow Meter?
Turndown ratio is a flow measurement term that indicates the range of a specific flow meter is able to measure flow with acceptable accuracy.
Loop Check of 4-20mA or HART Transmitters
Do you know about Loop Check of 4-20mA or HART Transmitters or Instruments Loop check procedure ? This article provides the basic info about loop checks of field instruments. Loop Check…
Difference between SIS, PLC and BPCS Systems
Safety Integrity Level (SIL) is a measure of safety system performance - not a measure of process risk. The higher the level of risk, the greater the system performance required.…
Why choose Intrinsic Safety ?
Intrinsic safety (IS) is a low-energy signalling technique that prevents explosions from occurring by ensuring that the energy transferred to a hazardous area is well below the energy required to initiate…
Energize to Safe Loop philosophy
Safety Instrument loop in a plant operate in two modes: Energized to safe De-energized to safe Energized to safe mode works as contrary to that of De-energized to safe loop.…
Importance of Safety Integrity Level
The global importance of SIL (Safety Integrity Level) has grown substantially in the oil/gas, petrochemical and other process industries over the last 10 years. However, for many end users, systems…
