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Control and Instrumentation Glossary

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Fire and Gas
Typically used when refering to Fire and Gas detection systems
Further Reading


Factory Acceptance Test
A test of equipment carried out at supplier's factory prior to shipment of equipment - usually witnessed by purchaser
Further Reading


Functional Design Specification

Further Reading


A communications protocol used to connect process instrumentation and control systems

Further Reading


Fire Resistant
Term used when specifying cables.
A cable which is designed to function in a fire ensuring the integrity of vital circuits such as essential and emergency systems.
Further Reading


The common name for hazardous area protection type EExd.

Further Reading


Flash Point
Flash Point Temperature is the lowest temperature at which a liquid releases sufficient vapour that can be ignited by an energy source

Further Reading


FM - Factory Mutual
North American insurance company who provide certification of industrial and commercial products

Further Reading


Failure Modes and Effects Analysis
Identifies failure modes - their causes and effects - the safeguards already incorporated and the potential additional measures that could be considered
Further Reading


Fault Tree Analysis
A method of calculating the probability of an event from the probabilities or frequencies of its causal events.
Further Reading


A measure of the tendency of a gas to escape or expand
Fugacity is the pressure value needed at a given temperature to make the properties of a non-ideal gas satisfy the equation for an ideal gas
Further Reading


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C&I Glossary
Relief Valve Glossary
Engineering Glossary
Nuclear Glossary

C&I Resources

Cable Gland Selector
CE Marking
Flange Dimensions
Ingress Protection
Pipe Schedules
Relief Valve Orifice Size
Temperature Class
Temperature Conversion
Thermocouple Types
Valve Leakage
Vortex Meters
Wires and Cables


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