G-2
2000-OSM, F1
GLOSSARY (continued)
Digital I/O
Digital Input/Output PCB; enables the use of additional stream valves and/or
alarm sensors
DIP switch
PCB switch that is used to set values through hardware instead of software
drift
the variances from the baseline or the norm; generally associated with
uncontrolled or unwanted changes in pressure or temperature
EIA
Electronic Instrument Association
elution time
the amount of time from the start of analysis that it takes for a peak to be fully
detected
EMC
electromagnetic
compatibility
EMI
electromagnetic
interference
Engineering Data
see
Data
Package
Package
EPC
Electronic Pressure Control
EPROM
Erasable, Programmable, Read Only Memory; program software that can be
erased and reprogrammed a limited number of times
E2PROM
Electrically Erasable Programmable Read Only Memory; used for the safe
storage of tables (sometimes written E
2
PROM or EEPROM)
FID
Flame Ionization Detector
field
highlighted area on display screen where data entry and modification are
allowed; data entry is ended (terminated) by filling the field with characters or by
pressing ENTER or any soft key or cursor key
forced gating
technique of chromatographic data collection in which the controller collects the
detector signal during a specified period of time
Gate On/Off
the time-coded function command which turns on and off the collection of data
from the detector
GC
Gas
Chromatograph
GCC
Gas
Chromatographic
Controller
Help key
front panel control key used to access information pertaining to the current
screen display content
highway address
numbers from one to 32 that uniquely identify remote GCCs
HL
High Limits, entered into a component table; when a component's measured and
calculated value exceeds the HL value, an alarm is generated