Process Field Equipment

Covers the most common digital inputs , and most analog measurement techniques. This 2-day course includes concepts of transmitters and accuracy, and the most important aspects of Final Control Elements (Solenoid- and Control Valves).

Next course: 27/28 June 2019   Cost: R 5 500,00 (no VAT) CPD Points: 2

Digital Signals: Non-contact sensors (inductive and capacitive proximity switches; photo-switches) are looked at in detail, and concepts of NPN/PNP outputs comprehensively covered.

Analog signals:
Temperature: Thermocouples, RTDs and Optical Pyrometers are examined, together with practical exercises to reinforce understanding. Transmitters are looked at in detail (2-wire/4-wire and why) and are calibrated.

Pressure: What is pressure; units. Gauge vs Absolute. Measurement techniques, calibration, installation issues.
Level: Continuous vs Point. What to use, when. Pitfalls and practicalities. Calibration exercises.
Flow: Gases vs Liquids; importance of flow profile; various techniques, including mass flow.
Mass: Loadcell operation; constraints; calibration. Belt scales; issues and calibration.
Density: In pipes – nuclear; Coriolis; mass. Density in tanks.
Liquid Analytical: pH; conductivity; turbidity. Measuring methods, and calibration.

Output Devices:
Solenoid- and Control valves are covered in some detail, including likely problems.

The ability to understand how measurement and control devices are installed, configured and understood, and their importance in the Control Loop. The importance of selection, calibration and commissioning, as well as the ability to understand ISA symbols and labelling, and P & I Diagrams.

Watch video.

Companion courses:
Loop Control: Feedback- Cascade- Feed-forward- and Ratio Control with practical exercises.
Flow Control: Final Control Elements such as Pumps and Valves, and the effect of pipes and fittings.