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T400 Ozone Analyzer Operator’s Manual A Primer on Electro-Static Discharge
315
Term Description/Definition
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
Rdg Reading
RS-232
specification and standard describing a serial communication method between DTE
(Data Terminal Equipment) and DCE (Data Circuit-terminating Equipment) devices,
using a maximum cable-length of 50 feet
RS-485
specification and standard describing a binary serial communication method among
multiple devices at a data rate faster than RS-232 with a much longer distance
between the host and the furthest device
SAROAD
Storage and Retrieval of Aerometric Data
SLAMS
State and Local Air Monitoring Network Plan
SLPM Standard Liters Per Minute of a gas at standard temperature and pressure
STP
Standard Temperature and Pressure
TCP/IP
Transfer Control Protocol / Internet Protocol, the standard communications protocol
for Ethernet devices
TEC
Thermal Electric Cooler
USB
Universal Serial Bus: a standard connection method to establish communication
between peripheral devices and a host controller, such as a mouse and/or keyboard
and a personal computer or laptop
VARS Variables, the variable settings of the instrument
Z/S
Zero / Span
06870C DCN6332