instrumentation and control

Instrument Grounding: General Guidelines

Specific attention must be paid to instrument grounding, especially where field instruments are connected to a computer or microprocessor based…

11 months ago

Valve Positioners: Function & Types

Basic Features of a Positioner Pneumatically operated valves depend on a positioner to take an input signal from the process…

11 months ago

Directional Control Valves: Function & Principle of Operation

Directional control valves are used to regulate the flow rate of hydraulic fluid; they are also utilized in pneumatic systems…

11 months ago

Instrument Manifolds: Function & Types

An instrument manifold also referred to as a valve manifold includes manual valves to isolate and equalize pressure from the…

11 months ago

Pneumatic System Components: Types & Functions

A pneumatic system utilizes air pressure to create mechanical motion. A basic pneumatic system consists of an intake filter that…

11 months ago

Pressure Regulators: Function & Types

The main function of any gas pressure regulator is to match the flow of gas through the regulator to the…

11 months ago

PLC Instruction Set

An Overview of PLC Instructions Types There are various types of instructions that are available in a PLC. The instruction…

12 months ago

Demand Mode vs. Continuous Mode Safety Function

Demand Mode Safety Function Demand mode safety function is where a specified action is taken in response to process conditions…

12 months ago

Input & Output Modules of a PLC – Types & Applications

The input/output modules act as the signal interface between the monitoring sensors and actuators, and the controller. Additional they provide…

12 months ago

The IEEE-488 Instrumentation Bus (GPIB)

A bus in computer systems means a collection of unbroken signal lines that interconnect computer modules; these connections are usually…

12 months ago