Teledyne 9110TH - Nitrogen Oxides Analyzer - Manual (Page 334)

Model 9110TH NOx Analyzer Glossary
Teledyne Analytical Instruments 314
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