TotalFlow XRC6490, Руководство пользователя

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B-12
TERM DEFINITION
Compressibility Factor A factor usually expressed as “z” which gives the ratio of the actual volume of
gas at a given temperature and pressure to the volume of gas when calculated
by the ideal gas law without any consideration of the compressibility factor.
Concentration Amount of solute per unit volume or mass of solvent or of solution.
Concurrent Performing more than one task at a time.
Condensate 1) The liquid formed by the condensation of a vapor or gas; specifically, the
hydrocarbon liquid separated from natural gas because of changes in
temperature and pressure when the gas from the reservoir was delivered to the
surface separators. 2) A term used to describe light liquid hydrocarbons
separated from crude oil after production and sold separately.
Condensation Liquefaction of vapor.
Condensed Phases The liquid and solid phases; phases in which particles interact strongly.
Condensed States The solid and liquid states.
Conduction The conveying of electrical energy or heat through or by means of a conductor.
Configuration No. The Configuration number is a suffix of the serial number which defines the
characteristics of the unit.
Console Mode
A local user interface typically used with custom applications that are not
supported through any other mechanism. Also referred to as Printer Console
Mode.
Contact Current carrying part of a switch, relay or connector.
Conversion Time The time required, in an analog input or output system, from the moment a
channel is interrogated (such as with a read instruction) to the moment that
accurate data is available. This could include switching time, settling time,
acquisition time, A/D conversion time, etc.
Coprocessor Another computer processor unit that operates in conjunction with the standard
CPU. Can be used to enhance execution speed. For example, the 8087 is
designed to perform floating point arithmetic.
COR See Corrected Runtime.
Corrected Runtime Correction to signal made to decrease/increase “ZERO phase” and eliminate
the shift between RT and COR for increased accuracy.
Cos See Cosine.
Cosine The sine of the complement of an arc or angle.
Counterclockwise Movement in the direct opposite to the rotation of the hands of a clock.
Counts The number of time intervals counted by the dual-slope A/D converter and
displayed as the reading of the panel meter, before addition of the decimal
point.
CPS Cycles per second; the rate or number of periodic events in one second,
expressed in Hertz (Hz).
CPU See Central Processing Unit.
CPUC California Public Utilities Commission
CRC See Cyclic Redundancy Check.
Cryogenic Plant A gas processing plant which is capable of producing natural gas liquids
products, including ethane, at very low operating temperatures.
CSA CSA International: Formerly Canadian Standards Association. Canadian
certification agency.
CTS Communication abbreviation for Clear To Send.
Cubic Three-dimensional shape with six equal sides. Used in measuring volume.
Cubic Centimeter Acronym CC. Metric volume equal to a 1 Centimeter to the 3
rd
power.