Modbus Communication Interview Questions and Answers
Read the Modbus communication interview questions prepared for your interview. Modbus Communication Interview Questions and Answers What is Modbus? Modbus is a serial communication protocol developed by Modicon published by…
Calibration of Displacer Level Transmitter
Calibration of Displacer Level Transmitter Calibration Procedure: *Ask panel man to put the controller in manual mode for control loop and to put it on MOS for ESD loop. *Hook…
Differential Pressure Sensors Calibration Procedure
Differential pressure sensors are common in the process industry and cover a variety of applications. To understand what a differential pressure sensor is, it becomes important to put it in…
Formula to Calculate 3-15psi from 4-20mA Current
The amount of psi can also be calculated from the amount of the milliamp signal, or one can calculate the amount of the milliamp signal when the amount of psi is known. Each of…
Abbreviations of Pressure, Temperature & Flow
PRESSURE: P : PRESSURE PI : PRESSURE INDICATOR PG : PRESSURE GAUGE PCV : PRESSURE CONTROL VALVE PT : PRESSURE TRANSMITTER PIT : PRESSURE INDICATING TRANSMITTER PIC : PRESSURE INDICATING…
How to Select an Actuator for Valve
As the process industry continues to achieve more efficient and productive plant design, plant engineers and technicians are faced, almost daily, with new equipment designs and applications. One product, a…
NIST Traceability
Calibration means the comparison and adjustment (if necessary) of an instrument’s response to a stimulus of precisely known quantity, to ensure operational accuracy. In order to perform a calibration, one…
Silica Analyzer Questions & Answers
Silica Analyzer Questions & Answers 1. Which of the following principles are used in silica analyzer? a) Amperometric principle b) Colorimetric principle c) Coulometric principle d) Magnetic principle Answer: b…
Sodium Analyzer Questions & Answers
Sodium Analyzer Questions & Answers 1. Which of the following indicate leakages in a condenser? a) Concentration of sodium in steam and condensate are very high b) Concentration of sodium…
Dissolved Oxygen Analyzer Questions and Answers
Dissolved Oxygen Analyzer Questions and Answers 1. Which of the following transducers must be used for dissolved oxygen analyser? a) Potentiometric b) Polarographic c) Ion-selective electrode d) Optical transducer Answer:…
