Main Features Of The Analyzer; General - Teledyne 7320 Operating Instructions Manual

1 Introduction
1.3

Main Features of the Analyzer

The Model 7320 Infrared Gas Analyzer is sophisticated yet simple to
use. The main features of the analyzer include:
• A easy-to-use front panel interface that includes a red 5-digit
LED display and a vacuum fluorescent display, driven by
microprocessor electronics, that continuously prompts and
informs the operator.
• High resolution, accurate readings of concentration from. Low
evels to 100%. Large, bright, meter readout.
• Versatile analysis over a wide range of applications.
• Microprocessor based electronics: 8-bit CMOS microprocessor
with 32 kB RAM and 128 kB ROM.
• Three user definable output ranges (from 0-2% through 0-100 %)
allow best match to users process and equipment.
• Calibration range for convenient zeroing or spanning.
• Auto Ranging allows analyzer to automatically select the proper
preset range for a given measurement. Manual override allows
the user to lock onto a specific range of interest.
• Two adjustable concentration alarms and a system failure alarm.
• Extensive self-diagnostic testing, at startup and on demand, with
continuous power-supply monitoring.
• RS-232 serial digital port for use with a computer or other digital
communication device.
• Analog outputs for concentration and range identification.
(0-1 V dc standard, and isolated 4–20 mA dc)
• Superior accuracy.
1.4

General

The Model 7320 is a non-dispersive infrared (NDIR) analyzer that
employs the basic principles of spectroscopic analysis to measure a specific
concentration of a gas in a multicomponent gas system. The concentration of
component of interest is determined by exposing a chamber (sample cell)
filled with a gas mixture to infrared radiant energy and measuring how much
of the specific (non-dispersive) infrared wavelength is absorbed by the gas
being measured. There is a direct correlation between absorption and the
concentration of the component of interest in the liquid mixture.
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Teledyne Analytical Instruments
Model 7320