Definitions Flashcards
(13 cards)
Def signal conditioner
Converts 1 type of electronic signal to another ie ma to v
Def galvanic isolation :
No direct contact between feild and control ccts
A sldc is ?
SAC?
Single loop digital controller
Stand alone controller
Def : Accuracy
How close the measured value is to the true quantity of whats being masured
Def : Repeatability
Closeness of agreement among several consecutive measuments under same operating conditions
Radioactivity or Radioactive decay
When an unstable isotope releases particles and energy as it decays to a more stable form
Radiation: ALARA
As low as reasonably achievable
Ullage
Amount of empty space at the top of a vessel
Radar: beam angle?
Angle that microwave energy is reduced to 50%
Proved ( a flow meter must be proved)
A device that determines the volume or mass of a sample fluid that passed through a Flowmeter. For traceability
Polarization for magnetic flow meters?
A layer of gas around the measuring electrodes which affects the signal reading
A wetted transducer is
In direct contact with the process fluid
Air or gass entrainment
When air or gas bubbles collect in the flow meter flow tube
