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M400E Ozone Analyzer Operator’s Manual Frequently Asked Questions and Glossary
4.2. GLOSSARY
Acronym – A short form or abbreviation for a longer term. Often artificially made up of the first letters of the
phrase’s words.
APICOM – Name of a remote control program offered by Teledyne-API to its customers
ASSY - Acronym for Assembly.
cm
3 –
metric abbreviation for cubic centimeter. Same as the obsolete abbreviation “cc”.
Chemical formulas used in this document:
CO
2
– carbon dioxide
C
2
H
8
– propane
CH
4
– methane
H
2
O – water vapor
HC – general abbreviation for hydrocarbon
HNO
3
– nitric acid
H
2
S – hydrogen sulfide
NO
X
– nitrogen oxides, here defined as the sum of NO and NO
2
NO – nitric oxide
NO
2
– nitrogen dioxide
NOy – nitrogen oxides, often called odd nitrogen, the sum of NO, NO
2
(NO
X
) plus other compounds such
as HNO
3
. Definitions vary widely and may include nitrate (NO
3
-), PAN, N
2
O and other compounds.
NH
3
– ammonia
O
2
- molecular oxygen
O
3
- ozone
SO
2
– sulfur dioxide
DAS - Acronym for Data Acquisition System, the old acronym of iDAS
DIAG - Acronym for diagnostics, the diagnostic menu or settings of the system
DHCP: acronym for dynamic host configuration protocol. A protocol used by LAN or Internet servers that
automatically sets up the interface protocols between themselves and any other addressable device connected
to the network.
DOC – Acronym for Disk on Chip, the system’s central storage area for system operating system, firmware and
data. This is a solid-state device without mechanical, moving parts that acts as a computer hard disk drive under
DOS with disk drive label “C”. DOC chips come with 8 mb space in the E-series system standard configuration
but are available in larger sizes
DOS - Disk Operating System. The E-series systems use DR DOS
EEPROM - also referred to as a FLASH chip.
FEP - Acronym for Fluorinated Ethylene Propylene polymer, one of the polymers that du Pont markets as
Teflon
®
(along with PFA and PTFE).
FLASH - flash memory is non-volatile, solid-state memory.
I
2
C bus – read: I-square-C bus. A serial, clocked serial bus for communication between individual system
components
04315 Rev. C1 43