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Teledyne API - Model 200EH/EM Operation Manual Frequently Asked Questions & Glossary
35
DOC – Acronym for Disk On Chip, the analyzer’s central storage area for analyzer 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 analyzer standard
configuration but are available in larger sizes
DOS - Disk Operating System. The E-series analyzers 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 analyzer
components
IC – Acronym for 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.
iDAS - Acronym for Internal Data Acquisition System, previously referred to as DAS.
LAN - acronym for local area network
LED - Acronym for Light Emitting Diode.
PCA - Acronym for Printed Circuit Assembly, this is the PCB with electronic components installed and ready
to use
PCB - Acronym for printed circuit board, the bare circuit board without components
PLC – Acronym for programmable logic controller, a device that is used to control instruments based on a logic
level signal coming from the analyzer
PFA – Acronym for Per-Fluoro-Alkoxy, an inert polymer. One of the polymers that du Pont markets as Teflon
®
(along with FEP and PTFE).
PTFE – Acronym for Poly-Tetra-Fluoro-Ethylene, a very inert poly
mer material used to handle gases that
may
react on other surfaces. One of the polymers that du Pont markets as Teflon
®
(along with FEP and PFA).
PVC – Acronym for Poly Vinyl Chloride, a polymer used for downstream tubing in the M200EH/EM.
RS-232 - An electronic communication protocol of a serial communications port
RS-485 - An electronic communication protocol of a serial communications port
TCP/IP - Acronym for Transfer Control Protocol / Internet Protocol, the standard communications protocol for
Ethernet devices and the Internet
VARS - Acronym for variables, the variables menu or settings of the analyzer
USER NOTES:
04521C (DCN5731)