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Ashlin

post-graduate in Electronics & communication.
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Instrumentation Calculators

Advanced Instrument Air Compressor Interlock Logic and Control Quiz for Automation and Instrumentation Professionals

Instrument Air Compressor Interlock Logic Quiz Introduction Instrument air compressors are critical utility equipment controlled through PLC based sequencing, pressure instrumentation, permissives, alarms, trips and automatic standby selection. For automation and instrumentation professionals, understanding this logic is essential for DCS configuration, PLC programming, control panel...
Procedures

Galvanic Isolator Troubleshooting Procedure in an Analog Input Loop

Table of ContentsIntroduction to Galvanic Isolator TroubleshootingUnderstanding a Typical 4 to 20 mA Analog Input LoopCommon Symptoms of Galvanic Isolator ProblemsStep by Step Galvanic Isolator Troubleshooting ProcedureIndustrial Troubleshooting Case Study: Incorrect DCS Pressure ReadingSafety Precautions for Galvanic Isolator TroubleshootingGalvanic Isolator Selection and Maintenance Best...
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Control Valve

What is a subsurface safety valve?

The chances of uncontrolled flow in a wellhead are really high, so a subsurface...
Control Valve

What is an emergency stop valve?

The emergency stop valve is a shut-off valve that would cut of the process...
Control Valve

What is a bellow seal valve?

Table of ContentsWhat are the features of a bellow seal valve?Why bellow sealed valves?How...
Control Valve

What is an automatic recirculating valve and where is it used?

The automatic recirculating valve is a type of control valve for the protection of...
Control Valve

What is a reversing valve?

A reversing valve can be seen in a heat pump, because of its ability...
Control Valve

What is a deluge valve and what is the need for a deluge system?

Table of ContentsWhat is a deluge system and why is it used?How does a...
Instrumentation

What is a surge tank?

A surge tank can be described as a storage reservoir, this device would be...
Instrumentation

What is a pressure surge in a pipeline and how to do the surge analysis?

What is a pressure surge or water hammer and what causes them? The pressure surge...
Control Valve

What is an expansion valve?

These valves are used to control the refrigerant flow in a refrigeration system. Expansion...
Electrical

What is a stepper motor?

The name stepper is used because the rotation of the motor is through the...
Electrical

What is a servo motor?

A servo motor is a variable speed drive and it is used in many...
Control Valve

What is a balancing valve?

What is a balanced system and what is the need for balancing? A balanced system...
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Latest articles

Instrumentation Calculators

Advanced Instrument Air Compressor Interlock Logic and Control Quiz for Automation and Instrumentation Professionals

Instrument Air Compressor Interlock Logic Quiz Introduction Instrument air compressors are critical utility equipment controlled...
Procedures

Galvanic Isolator Troubleshooting Procedure in an Analog Input Loop

Table of ContentsIntroduction to Galvanic Isolator TroubleshootingUnderstanding a Typical 4 to 20 mA Analog...
Instrumentation Calculators

Pressure Transmitter Overrange Protection Calculator: Calculate Pressure Surge and Overpressure Risk

Table of ContentsWhat Is Pressure Transmitter Overrange Protection?Pressure Transmitter Overrange Protection Calculator ParametersHow to...
Instrumentation Questions

Advanced Instrument Logic Diagram Quiz for Process Control Systems in Process Industries

Instrument Logic Diagram Quiz Introduction An Instrument Logic Diagram displays the interaction of process conditions,...