instrumentation Question and Answer

1. What Is Instrumentation?

Answer: The technology which is used to measured and control the process system of plant is  called instrumentation. It is branch of engineering.

2. What is the instrumentation Engineering?

Answer: Instrumentation engineering is the engineering specialization deals with principle and operation of measuring devices used in electrical, pneumatic, etc. design and configuration of automated systems.

Instrumentation engineers work with automated processes, such as chemical or manufacturing plants, for industries to enhance system efficiency, reliability, health, optimization and stability.

3. What is the instrumentation measurement?

Answer: Instrumentation can be used to measure certain field parameters (physical values):

• Pressure, either differential or static
• Flow
• Temperature measurement
• Level Measurement
• Density
• Viscosity
• Radiation
• Current
• Voltage
• Inductance
• Capacitance
• Frequency
• Resistivity
• Conductivity
• Chemical composition
• Chemical properties
• Various physical properties

4. Why 4-20mA signal is prefered over a 0-10v?

Answer: If the instrument is faulty, it can be detected easily. If the output is 0 ma, it will be hard to determine whether it is a defective signal or a good signal.

20 ma is used as maximum because the human heart can withstand up to 30 ma of current only. For safety reason 20 ma chosen as the maximum value.

5. What an instrumentation technician/mechanic do?

Answer: Instrumentation technologists, technicians and mechanics are trained in troubleshooting and fixing equipment and instruments. This trade is so interconnected with electricians, pipefitters, power engineers, and engineering firms that in extremely diverse working conditions you will find yourself