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FAQ Model GFC7000TA Carbon Dioxide Analyzer
Teledyne Analytical Instruments 48
Term Description/Definition
GFC
Gas Filter Correlation
I
2
C bus a clocked, bi-directional, serial bus for communication between individual
analyzer components
IC Integrated Circuit, a modern, semi-conductor circuit that can contain many basic
components such as resistors, transistors, capacitors etc in a miniaturized
package used in electronic assemblies
IP
Internet Protocol
IZS
Internal Zero Span
LAN
Local Area Network
LCD
Liquid Crystal Display
LED
Light Emitting Diode
LPM
Liters Per Minute
MFC
Mass Flow Controller
M/R
Measure/Reference
MOLAR MASS the mass, expressed in grams, of 1 mole of a specific substance. Conversely,
one mole is the amount of the substance needed for the molar mass to be the
same number in grams as the atomic mass of that substance.
EXAMPLE: The atomic weight of Carbon is 12 therefore the molar mass of
Carbon is 12 grams. Conversely, one mole of carbon equals the amount of
carbon atoms that weighs 12 grams.
Atomic weights can be found on any Periodic Table of Elements.
NDIR
Non-Dispersive Infrared
NIST-SRM
National Institute of Standards and Technology - Standard Reference Material
PC
Personal Computer
PCA Printed Circuit Assembly, the PCB with electronic components, ready to use
PC/AT
Personal Computer / Advanced Technology
PCB Printed Circuit Board, the bare board without electronic component
PFA Per-Fluoro-Alkoxy, an inert polymer; one of the polymers that Du Pont markets
as Teflon
®
PLC Programmable Logic Controller, a device that is used to control instruments
based on a logic level signal coming from the analyzer
PLD
Programmable Logic Device
PLL
Phase Lock Loop
PMT Photo Multiplier Tube, a vacuum tube of electrodes that multiply electrons
collected and charged to create a detectable current signal
P/N (or PN)
Part Number
PSD
Prevention of Significant Deterioration
PTFE Poly-Tetra-Fluoro-Ethylene, a very inert polymer material used to handle gases
that may react on other surfaces; one of the polymers that Du Pont markets as
Teflon
®
PVC Poly Vinyl Chloride, a polymer used for downstream tubing