Course Details

Subject {L-T-P / C} : CH3312 : Process Instrumentation {3-0-0 / 3}
Subject Nature : Theory
Coordinator : Prof. Hara Mohan Jena


Elements of instruments, Static characteristics, Dynamic characteristics, Applications of Laplace transforms in instruments, Responses of first & second order instruments and capacitance Temperature measuring instruments like Bimetallic, Vapour pressure, Thermocouples, Automatic Potential Recorders, Resistance thermometers, Radiation pyrometers, Optical Pyrometers, Photo-electric Pyrometers, Thermistors, Responses of these instruments Composition measuring instruments: Spectroscopic methods, Thermal conductivity cells, Carbon dioxide analyser, Humidity measurement, Moisture in paper and lumber, pH meter, Oxygen analyser, polarograph, Refractometer, Chromatography, Colorimetry, Combustible gas analysers Measurement of pressure and vacuum: Manometers, Pressure spring, McLeod gauge, Pirani Gauge, Ionization Gauge, Thermocouple Gauge, Responses of these instruments Measurement of flow properties: Viscosity and specific gravity measurement, Level measuring devices, Flow measuring devices, measurement of displacement Biosensors and its applications Process instrumentation diagram

Course Objectives

  1. The aim of the course is to make the students understand the purpose of instrumentation process industries
  2. Provide adequate knowledge on various process instruments and their characteristics

Course Outcomes

Upon successful completion of this course, a student should be able to:
1. Understand the principle, construction and working principle of various type of transducers/sensor to measure physical quantities.
2. Static and dynamic characteristics of instruments and calculation of errors in measurement,
3. Experimental determination of transfer functions of the sensors or systems.
4. Know the constructional details, principle of operation, and performance of different types of instruments for the measurement of process variables such as temperature, pressure, flow, level, density, viscosity, pH, humidity and concentration.
5. Identify elements and construct Piping and Instrumentation Diagrams (P&IDs)

Essential Reading

  1. K. Krishnaswamy, Industrial Instrumentation, , New Age Publishers , 2010
  2. A. Suryanarayana, Outline of Chemical Instrumentation and Process Control, Khanna Publisher , 2008

Supplementary Reading

  1. J. Curtis, Process Control Instrumentation Technology, Prentice-Hall of India , 2005
  2. R. S. Sirohi, H. C. Radha Krishna, Mechanical Measurements, New Age Publishers , 1991