Teledyne 2020 - Explosion proof thermal conductivity analyzer - Manual (Page 7)

1-1 Teledyne Analytical Instruments
Thermal Conductivity Analyzer Introduction 1
Introduction
1.1 Overview
The Analytical Instruments Model 2020 Thermal Conductivity Ana-
lyzer, explosion proof, UL and CSA listed for class 1, DIV 1, Groups B, C,
and D service, is a versatile microprocessor-based instrument for measur-
ing a component gas in a background gas, or in a specific mixture of
background gases. It compares the thermal conductivity of a sample stream
with that of a reference gas of known composition. The 2020 can—
• measure the concentration of one gas in a mixture of two gases.
• measure the concentration of a gas in a specific mixture of
background gases.
• measure the purity of a sample stream containing a single
impurity or a mixture of impurities.
The standard 2020 is preprogrammed with automatic linearization
algorithms for a large number of gases and gas mixtures. The factory can
add to this data base for custom applications, and the sophisticated user can
add his own unique applications.
Many of the Model 2020 features covered in this manual are optional,
selected according to the customers specific application. Therefore, the user
may find much here that does not apply to his instrument. This is unavoid-
able due to the number of possible combinations of features available. We
have endeavored to make the manual as usable and convenient as possible,
in light of this flexibility.