Teledyne GFC-7001E - Trace CO Analyzer - Manual (Page 60)

FAQs Model GFC7001E Carbon Dioxide Analyzer
Teledyne Analytical Instruments 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 .