B-40
TERM DEFINITION
RTDB
See Real Time Data Base.
RTOS
See Real Time Operating System.
RTS
Communication abbreviation for Ready To Send.
RTU
See Remote Terminal Unit
Runtime
The time required for an acoustic signal to travel from point A to point B. This
measurement is used in calculating the speed of Sound, gas velocity and
volume in the TotalSonic Meter.
RXD
Communication abbreviation for Receive Data.
S/N
Serial Number. The whole Serial Number is made up of a prefix of 5 digits and
the suffix, a 10 digit configuration number.
S1
Sample Line 1 (located on NGC8200 series Feed-Through Assembly).
S2
Sample Line 2 (located on NGC8200 series Feed-Through Assembly).
S3
Sample Line 3 (located on NGC8200 series Feed-Through Assembly).
S4
Sample Line 4 (located on NGC8200 series Feed-Through Assembly).
Saddle
A fitted plate held in place by clamps, straps, heat fusion, or welding over a
hole punched or drilled in a gas main to which a branch line or service line
connection is made. The saddle also may serve as a reinforcing member for
repair.
Sample Loop
A tube with a given volume used in conjunction with a valve for measuring and
holding the sample gas before pushing it into the chromatograph column.
Saturated BTU
The heating value of natural gas that is saturated with water vapor.
Saturated Hydrocarbons
Hydrocarbons that contain only single bonds. They are also called Alkanes or
paraffin hydrocarbons.
Save
This refers to a Totalflow procedure in which all the Station or Configuration
files are copied from the RDRIVE or the SDRIVE, to a file created on a laptop.
Savitsky-Golay Smoothing
Digital Signal Smoothing. A special class of a digital signal processing filter.
Specifically determines the coefficients that are used for signal processing.
SCADA
See Supervisory Control and Data Acquisition
Scf
Abbreviation for one standard cubic foot, a measurement of a gas volume at a
contractual, regulatory or standard specified temperature and pressure.
Schematic
Another name for a circuit diagram.
SCM
Acronym for Sample Conditioning Module.
Scroll
To move all or part of the screen material up to down, left or right, to allow new
information to appear.
SD Card
Secure Digital Card.
SDRIVE
Totalflow’s Serial E
2
PROM solid state memory chip, located on the Main Board
(volatile memory, affected by a cold start), used to store configuration or station
files.
Selectable Units
Selectable measurement units for various international and specialized
application needs.
Self-Calibrating
A property of a DAQ board that has an extremely stable onboard reference and
calibrates its own A/D and D/A circuits without manual adjustments by the user.
Semiconductor
Material that is nether a conductor nor insulator. Its properties can be altered by
a control voltage.
Sensing Element
That part of the transducer which reacts directly in response to the input.
Sensor
A device that responds to a physical stimulus (heat, light, sound, pressure,
motion, flow, and so on), and produces a corresponding electrical signal.
Summary of Contents for XRC6490
Page 1: ...2100802 001 AB TOTALFLOW XSeries Remote Controller User s Manual ...
Page 6: ...iv B B Bl lla a an n nk k k P P Pa a ag g ge e e ...
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Page 19: ...1 5 Standard Enclosure Cont RC 6790 X Figure 1 2 Model XRC6790 Continued on Next Page ...
Page 41: ...1 27 Totalflow Input Output Modules Cont Figure 1 16 XRC6990 Inside View ...
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Page 64: ...2 22 B B Bl lla a an n nk k k P P Pa a ag g ge e e ...
Page 86: ...4 12 Replacing XRC 195 Board Cont Figure 4 5 XRC Board Connections ...
Page 88: ...4 14 B B Bl lla a an n nk k k P P Pa a ag g ge e e ...
Page 112: ...5 24 12V Communication Supply Voltage Test Cont Figure 5 9 XRC 195 Communication Wiring ...
Page 292: ...A 176 B B Bl lla a an n nk k k P P Pa a ag g ge e e ...
Page 340: ...B 48 B B Bl lla a an n nk k k P P Pa a ag g ge e e ...
Page 342: ...C 2 B B Bl lla a an n nk k k P P Pa a ag g ge e e ...
