How to Avoid Bad Grounds ?
Earthing of electrical systems is required for a number of reasons, principally to ensure the safety of people near the system and to prevent damage to the system itself in…
Over Pressure cases for Pressure Relief Valve Sizing
Separator vessels, storage tanks, heat exchangers, columns and certain piping segments etc. are designed to handle certain operating pressure. However combination of a variety of causes may lead to over…
What is Gas Metering System?
In onshore or offshore, the gas metering system or custody transfer metering is the final stage before sending the gas to end user.
Instrumentation Cables Armor
Armor in the cable construction is used as physical or mechanical protection so that the cable wouldn’t damage from harsh mechanical impact.
Differential Pressure Transmitter Calibration Procedure
Differential Pressure Transmitter Calibration Procedure Calibration Procedure : Set up the differential pressure transmitter, HART communicator, power supply, hand pump, and the multimeter as below (see below calibration setup Diagram).…
Single Acting Vs Double Acting Actuators
There are basically two types of actuators : single action and double action. Â Single action is a control valve that is driven by the air output of the control valve…
Level Transmitter Calibration Procedure
Calibration Procedure Set up the guided wave radar level transmitter, HART communicator, power supply, and the multimeter as below (see below calibration setup Diagram). Check the configuration of the lower…
Cable Trays Glossary
Accessories. Devices that are used to supplement the function of straight sections and fittings, and include such items as dropouts, covers, conduit adapters, hold-down devices, and dividers. Cable Tray Connector.…
RF Level Switches Working Principle
RF level sensors are the Capacitance level detectors which are sometimes called as admittance level sensors. These sensors make use of radio frequency balanced impedance bridge circuit to find out…
How to Test a Transistor ?
An individual transistor can be tested either in-circuit or out-of-circuit with a transistor tester. For example, let’s say that an amplifier on a particular printed circuit (PCB) board has malfunctioned. Good troubleshooting…
