Common Questions on Oil and Natural Gas Industry
This post shares the most common questions and answers on oil and natural gas industry for the young engineers for their technical job preparation. Questions on Oil and Natural Gas…
What is an FACP? (Fire Alarm Control Panel)
The Fire Alarm Control Panel (FACP) monitors and controls all functions of the fire alarm system. It receives input from initiation devices like a manual pull station or smoke detector,…
Types of Interlocks
Interlocking is primarily a safety measure, though, the process interlocks used to control the loops or sequence. Interlock Philosophy Interlocking is a method used to maintain safe operating state of…
DCS Program to Maintain Draft in Furnace
In Boiler, the Draft Plays an Important role. If the Draft of the Boiler Furnace is not Control Properly there are the Chances of Back firing and also the heat…
What is a Annunciator Panel?
Annunciator Panel is a device that consists of a number of visible signals such as "flags" or lamps indicating the status of an alarm system or systems. Each circuit is…
ICS Control System Security
This article provides an overview of these ICS and typical system topologies, identifies typical threats and vulnerabilities to these systems, and provides recommended security countermeasures to mitigate the associated risks.…
Problem on Tachogenerator
A tachogenerator is a small DC generator designed to output a voltage directly proportional to the speed of a rotating shaft. These instruments are used to generate an analog electrical…
What is a Control Panel and its types?
Control panel is used to accommodate instruments for the purpose of measurement, monitoring, protection, detection, control and manage the processes. The panels are located in a control room as well…
Loop Calibrator to Simulate a 4-20 mA Signal
Suppose a technician wishes to use a loop calibrator to simulate a 4-20 mA signal to a controller, and decides to connect the loop calibrator to the circuit like this:…
Problem on PLC, HMI, VFD, and Motor Circuit
There is a problem with PLC, HMI, VFD, and motor circuit and how to identify the location and nature of the system fault using a digital multimeter (DMM)?
