ABB Totalflow NGC8206 Manual Del Usuario página 295

TERM
Protocol
PSI
PSIA
PSID
PSIG
PSIS
PTB
PTC
Pulse Input
Pulse Mode
Pulse Output
Radio Frequency
Radio Frequency
Interference
RAM
RAM Disk
RAMS
Random Access
Memory
Range
Rangeability
2103650-001 – rev. AB
A formal set of conventions governing the formatting and relative timing
of message exchange between two communicating systems.
Pounds per Square Inch.
Pounds per Square Inch Absolute. Absolute pressure uses a perfect
vacuum as the zero point. A perfect vacuum is 0 PSIA.
PSIA=PSIG + Atmospheric Pressure.
Pounds per square inch differential. Pressure difference between two
points.
Pounds per Square Inch Gauge. Gauge pressure uses the actual
atmospheric pressure as the zero point.
Pounds per square inch standard. Pressure referenced to a standard
atmosphere.
Physikalisch Technische Bundesanstalt (Federal Physical Technical
Office) or Technical Institute for Certification.
See Positive Temperature Co-efficient Fuse.
Any digital input to a meter (usually a turbine) that is used to measure
pulses over a time period. This calculates volume and flow rate for each
period of time.
An operational mode used by the LevelMaster for measuring single
float levels by transmitting a pulse to the primary windings, reading the
voltage level on both the primary and secondary windings and using a
calculation whereby one is subtracted from another to determine the
single fluid level.
Any digital output that is used to measure pulses over a period of time.
Frequency of Pulses in a predetermined time frame represents a value
to be used in calculating volume and flow rate.
RF for short. That part of the spectrum from approx. 50kHz to
gigahertz.
Electromagnetic radiation which is emitted by electrical circuits carrying
rapidly changing signals, as a by-product of their normal operation, and
which causes unwanted signals (interference or noise) to be induced in
other circuits.
See Random Access Memory.
A lithium backed storage chip. Also see Random Access Memory.
Acronym for Remote Alarms Monitoring System.
Onboard read/write volatile memory, generally used for application
variables and the file system. Data stored is lost if power is removed
(volatile).
Those values over which a transducer is intended to measure, specified
by its upper and lower limits.
The ratio of the maximum flowrate to the minimum flowrate of a meter.
DEFINITION
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