DL8000 Preset Instruction Manual
Revised February-2016
Glossary
A-1
Appendix A – Glossary
Note
:
This is a generalized glossary of terms. Not all the terms may
necessarily correspond to the particular device or software
described in this manual. For that reason, the term “ROC”
identifies all varieties of remote operations controllers.
A
A/D
Analog to Digital signal conversion.
ABS
Acrylonitrile Butadiene Styrene.
ADC
Analog to Digital Converter. Used to convert analog inputs (AI) to a format the flow
computer can use.
Additive
A liquid that is injected into a primary liquid component in relatively small quantities,
usually less than four percent of the delivered volume total. Additives are injected into
the primary liquid component by an injector mechanism which places a known, fixed
volume of the additive into the primary liquid component stream for each injector pulse
received from the DL8000 Preset.
AGA
American Gas Association. A professional organization that oversees the AGA3
(orifice), AGA5 (heating value), AGA7 (turbine), AGA8 (compressibility), and AGA11
(ultrasonic) gas flow calculation standards. See http://www.aga.org.
AWG
American Wire Gauge.
AI
Analog Input.
AO
Analog Output.
Analog
Analog data is represented by a continuous variable, such as an electrical current
signal.
Annubar
A device that uses Pitot tubes to measure the gas flow rate within a pipeline. The gas
volume is calculated from the difference between the flowing pressure and the static
pressure of the gas.
AP
Absolute Pressure.
API
American Petroleum Institute. See http://www.api.org.
Area
A user-defined grouping of database entities.
Arm
A movable pipe or hose assembly used at a tanker truck loading island (also:
swing
arm, loading arm
). The arm can be designed for either top loading or bottom loading to
the tanker compartments. A
swing arm
can be positioned to load at either side of the
loading island or the parked state.
ASCII
American (National) Standard Code for Information Interchange.
Attribute
A parameter that provides information about an aspect of a database point. For
example, the alarm attribute is an attribute that uniquely identifies the configured value
of an alarm.
B
Batch
A preset, quantity-based product delivery or blended component delivery of a single
recipe.
Blend Stream
A product stream blended of both gasoline and ethanol.
