Process Control
Instrumentation and process control systems - design and documentation.
• Control Theory Basics
The control loop - proportional integral and derivate mode
• Control Valves
Control Valve terminology, bodies, trim, flow characteristics, Cv and Kv sizing, noise, actuators and positioners
• Documentation
Documentation of process control systems - Block Flow Diagrams (BFD), Process Flow Diagrams (PFD), Piping and Instrumentation Diagrams (P&ID) and more
• Measurements and Instrumentation
Measurement and instrumentation strategies.
• Risk, Reliability and Safety
Risk, reliability and safety in process control systems.
Air - Humidity Measurement from Dry and Wet Bulb Temperature
Relative humidity in moist air can estimated by measuring the dry and wet bulb temperature.
BFD - Block Flow Diagram
A Block Flow Diagram is a schematic illustration of a major process.
Butterfly Valves - Sizing and Selection
Selecting and sizing butterfly valves for water applications.
CE Marking
Verifies that a product is designed to the appropriate standards according the European Machine Directive.
Control Valves - Sizing and Selection
Sizing control valves to match process requirements.
Electric Circuit Diagram - Drawing Template
Online shareable electric circuit diagram.
Flow Coefficient Cv vs. Flow Factor Kv
Comparing flow coefficients Cv to flow factors Kv.
Flowmeters - Turndown Ratios
Turndown ratio (Rangeability) can be used to compare flow measurement devices like orifices, venturi meters etc.
Fluid Flowmeters - Comparing Types
An introduction to the different types of fluid flowmeters - Orifices, Venturies, Nozzles, Rotameters, Pitot Tubes, Calorimetrics, Turbine, Vortex, Electromagnetic, Doppler, Ultrasonic, Thermal, Coriolis.
Gases - Control Valve Calculator
An online control valve - Cv - calculator for gases.
Hazard Rating Systems for Chemicals
The National Fire Protection Association (NFPA) hazard system for chemical materials.
Hazardous Areas - European Classification Standard
European hazardous area classification with zones, protection types, temperature codes and codes.
Hazardous Areas - North America Classification
North American hazardous locations classification with classes, divisions and groups
HVAC Diagram - Online Drawing Tool
Draw HVAC diagrams online with this Google Drive drawing tool.
IP - Ingress Protection Ratings
IP - Ingress Protection rating is used to specify the environmental protection - or electrical enclosure - of electrical equipment.
ISA Instrumentation Codes used in Process Control Systems
The ISA standards and symbols are important for the P&IDs and documents describing the process control system.
Liquid, Steam and Gas - Flow Coefficients Cv
Calculate flow coefficients for the design of control valves - Imperial units.
P&ID - Piping and Instrumentation Diagram
Schematic illustration of a functional relationship between piping, instrumentation and system components.
P&ID Diagram - Online Drawing Tool
Draw P&ID diagrams online in the browser with Google Docs.
PFD - Process Flow Diagram
The Process Flow Diagram (PFD) is a schematic illustration of a system.
PFD - Process Flow Diagram - Online Drawing Tool
Draw Process Flow Diagrams with this online Google Docs drawing application.
Pressure
Introduction to pressure - online pressure units converter.
Process Control - Common Terms
Common terms used in the process control terminology.
Process Controllers - P, PI & PID
Proportional, integrating and derivative process controllers.
Process Instrumentation - ISA Codes
ISA process instrumentation codes - and combinations.
Signal Transmission - Standards
Standard signals used for transmission from sensor to controller.
Steam Control Valves - Calculate Flow Factor Kv
Designing steam control valves and their Kv values.
Temperature Sensors - Comparing Types
Comparing advantages and disadvantages of thermocouples, RTDs and thermistors temperature sensors.
Thermocouples
Thermocouples - types, principles and temperature ranges.
Water Control Valves - Kv Calculation
Designing water process control valves and their Kv values.
