Teledyne 7120 - NDIR analyzer - Manual (Page 6)

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1 Introduction Model 7100
Teledyne Analytical Instruments
• Sulfuric acid plants 0-15% SO2, 1000ppm CO,
20%CO2
• Blanketing of perishables Leak detection, fermentators,
controlled atmospheres
• Carbon bed breakthrough detection ppm’s to % levels, CO, CO2,
HC’s
• Mining/Landfill/Sewerage CO, CO2, CH4, C2-C6 HC’s,
H2Ov (500ppm to 8% possible
1.3 Main Features of the Analyzer
The Model 7120 Photometric 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
ppm levels through 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 0-100 ppm 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.