One of the biggest problems in any plant, is getting to, and repairing faults ASAP. For this to happen, Instrumentation staff need to understand what equipment they are dealing with, and how it operates. More importantly, they need to develop a mindset which logically takes them to the point of breakdown, and quickly rectify the problem. This 2-day course includes concepts of transmitters and accuracy, and the most important aspects of Final Control Elements (Solenoid- and Control Valves). Crucially though, it leads them to fully understand and follow the logical path to the solution.
Next course: 22/23 April 2020 Cost: R 6 000,00 (no VAT) CPD Points: 2
Optional Third day: Fault-finding where Intrinsic Safety is involved: 24 April Cost:+ R 3 000,00
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.
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.
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. Over and above this, there is a proper understanding of how to solve problems and get the plant up and running in the shortest time.
A comprehensive manual shows how to go about measuring for results, and this is supplemented by full-colour A3 laminated posters to reinforce the message.
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.