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Frequently Asked Questions Teledyne API – Technical Manual - Model 300E Family CO Analyzers
60
Term Description/Definition
PCB Printed Circuit Board, the bare board without electronic component.
PLC Programmable Logic Controller, a device that is used to control instruments
based on a logic level signal coming from the analyzer
PFA Per-Fluoro-Alkoxy, an inert polymer. One of the polymers that du Pont markets
as Teflon
®
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
two devices, DTE (Data Terminal Equipment) and DCE (Data Circuit-terminating
Equipment), 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; 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 is 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.
VARS Variables, the variable settings of the analyzer.
Z/S Zero / Span.
04288D DCN5752