User guide

Part I 1-3
Teledyne Analytical Instruments
Thermal Conductivity Analyzer Part I: Control Unit
• Microprocessorbasedelectronics:8-bitCMOSmicroprocessor
with32kBRAMand128kBROM.
• Autoandremotecalibrationcapabilities.
• Fouranalogoutputs:twoformeasurement(0–1VdcandIso-
lated4–20mAdc)andtwoforrangeidentication.
• Compactandversatiledesign:Smallfootprint,yetinternalcom-
ponentsareaccessible.
1.4 Model Designations
The Model 2010A is ordinarily custom programmed at the factory to
t the customers application. Many parameters, including the number of
channels, the gas application, the materials specication of the sampling
system, and others, are options. The most common options, are covered in
this manual. See the Specic Model Information checklist in the front mat-
ter of this manual for those that apply to your Model 2010A analyzer. Some
standard models that are not covered in this manual are listed here.
Models 2000A: Bothanalysissectionandcontrolunitareinasingle
general purpose enclosure.
Models 2020: Boththeanalysissectionandcontrolunitareinasingle
explosion proof enclosure.
1.5 Operator Interface (Front Panel)
The standard 2010A is housed in a rugged metal case with all controls
and displays accessible from the front panel. See Figure 1-1. The front
panel has thirteen buttons for operating the analyzer, a digital meter, and an
alphanumeric display. They are described briey here and in detail in the
Operations chapter of this manual.
Function Keys: Six touch-sensitive membrane switches are used to
change the specic function performed by the analyzer:
Analyze Perform analysis for target-gas content of a sample
gas.
System Performsystem-relatedtasks(describedindetailin
chapter 4, Operation.).
Span Spancalibratetheanalyzer.
Zero Zerocalibratetheanalyzer.