GE Hydran 201 i Instruction Manual page 290

Appendix I • Glossary
ESD: ElectroStatic Discharge
Extended Menu: Menu of the Hydran 201Ti's embedded software that gives access to all
operation parameters and commands (including those of the Main Menu)
Fault: Indication (other than diagnostics) issued by the hardware or software that an
anomaly exits in the Hydran 201Ti
FCC: Federal Communications Commission, the United States government agency
responsible for ensuring that phone lines are being used correctly and that radio interference
is at acceptable levels
Feedback: A means of providing indication of operation either by measured values or
contact status (on/off)
FIFO: First In, First Out. The first data into a memory buffer is the first data out of the
buffer.
Gas Level: Composite value of four dissolved gases in transformer oil, measured by the
Hydran 201 sensor
GE: General Electric
GND: GrouND (earth), a common reference point in an electric or electronic circuit
GUI: Graphical User Interface, the graphical layout designed to enable user interaction
with the Hydran 201Ti. It enables information to be passed between a user and hardware or
software components of a computer system via graphical symbols (icons, buttons and
menus) located on a screen, accessed using a mouse, keyboard, keypad, etc.
H or Hi: High alarm
H : Hydrogen
2
Hardware: The physical parts of a computer-controlled system, such as circuit boards,
chassis, peripheral devices, cables, etc.
HH or Hi-Hi: High-High alarm
I-4 Rev. 6, March 2011 Part 17997