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Process Instrumentation Control Valves, ATEX & Loop Design
Last updated 7/2026
MP4 | Video: h264, 1920x1080 | Audio: AAC, 44.1 KHz, 2 Ch
Language: English | Duration: 2h 47m | Size: 3.54 GB
4-20mA loops, pressure, level & flow selection, Cv sizing, ATEX/IECEx, IS barriers, C&E matrices & F&G detection
What you'll learn
Size and select control valves - globe, ball and butterfly, trim, characteristics, Cv sizing and actuators
Select the right flow meter - orifice, Coriolis, magnetic, vortex or ultrasonic - for the fluid, accuracy and installation
Design a compliant intrinsically safe loop - barriers, isolators and entity parameter checks
Apply ATEX and IECEx hazardous area classification - zones, gas groups, temperature classes and Ex protection concepts
Specify pressure, temperature and level measurement, including DP, guided radar, ultrasonic and displacer
Explain the 4-20 mA loop and how it underpins every field instrument
Raise instrument datasheets, apply tagging conventions and maintain an instrument index
Read loop diagrams and plan instrument calibration
Develop and implement a cause and effect matrix
Specify fire and gas detection systems
Select final elements - solenoid, on/off and actuated valves
Work through instrument selection on real process applications
Requirements
No prior instrumentation experience is required - measurement fundamentals are built from the ground up
Any engineering, technical or maintenance background is enough to follow the course
Helpful but not essential: familiarity with P&IDs and basic process plant equipment
No instrumentation or configuration software required - a calculator is enough for the sizing and IS loop work
A willingness to work through datasheets and a worked IS loop calculation
Description
▸ Every control system is only as good as the instruments feeding it.
A miscalibrated transmitter, an incorrectly sized control valve, or an IS loop that violates its entity parameters does not just affect accuracy. It creates safety risk, regulatory exposure and downtime.
This course teaches the instrumentation layer the way it is specified and installed on operating process plants.
▸ What you will master
- The 4-20 mA loop - the foundation every field instrument still sits on, and why it endures
- Pressure and temperature - transmitters, gauges and switches; thermocouples, RTDs and thermowells, with installation practice
- Level measurement - DP, guided radar, ultrasonic and displacer, and the selection logic between them
- Flow measurement - orifice, Coriolis, magnetic, vortex and ultrasonic, matched to fluid, accuracy and installation constraints
- Control valves - globe, ball and butterfly, trim and characteristics, Cv sizing, actuator selection and positioners
- Final elements - solenoid, on/off and actuated valves
- Hazardous areas - ATEX and IECEx classification, zones, gas groups, temperature classes and Ex protection concepts
- Intrinsic safety - barriers, isolators and the entity parameter checks that keep an IS loop compliant
- Datasheets and documentation - instrument datasheets, tagging conventions, the instrument index and loop diagrams
- Cause and effect matrices - developing and implementing the matrix that drives plant shutdown logic
- Fire and gas detection - detector selection, coverage and system design
▸ Where the final control element fails
Two lessons are devoted to control valves and final elements, because that is where a great many loops actually fail. Sizing, characteristic selection and actuator specification decide whether a loop controls or hunts - and they are the parts most often left to the vendor.
▸ Hazardous area compliance done properly
An intrinsically safe loop is not safe because the equipment is certified. It is safe because the entity parameters have been checked. Two lessons cover ATEX and IECEx classification and the IS loop calculation that proves compliance - a check that is frequently skipped and occasionally catastrophic.
▸ What you get
- 14 focused lectures across seven sections
- Two full mock examinations - timed, scored and retakeable
- Worked instrument selection across three real process applications
- Lifetime access, mobile and TV access, and a certificate of completion
- Udemy's 30-day money-back guarantee
▸ Who this is for
C&I, control and instrumentation engineers who specify, install or maintain field instrumentation. Maintenance and commissioning technicians moving into specification and calibration work. Automation, electrical, process and mechanical engineers who need to understand the measurement layer. System integrators and panel builders selecting and wiring instruments. Operations engineers who rely on instrument data and want to judge whether it can be trusted. And technical sales and field service staff at instrument and valve vendors.
▸ No prior instrumentation experience is required - measurement fundamentals are built from the ground up. No software or licence needed; a calculator is enough for the sizing and IS loop work.
Built by a practising engineer with over fifteen years specifying instrumentation on oil, gas, energy and industrial projects, including the hazardous area loop calculations and datasheets that close out a real design.
If you work with process instrumentation - specifying, installing, maintaining or simply relying on it - this is where to build the confidence to know an instrument is correct before it reaches the field.
Who this course is for
C&I, control and instrumentation engineers who specify, install or maintain field instrumentation
Maintenance and commissioning technicians stepping up to instrument specification and calibration work
Automation, electrical, process and mechanical engineers who need to understand the measurement layer
System integrators and panel builders selecting and wiring field instruments and valves
Operations and plant engineers who rely on instrument data and want to judge whether it can be trusted
Technical sales and field service staff at instrument and valve vendors
Graduates, apprentices and career changers needing practical grounding in measurement and valves
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