ECA 450 Introduction
Instruction 0024-9400
1.4 Operation Overview
The ECA 450 is microprocessor controlled, allowing it to be easily operated
and configured to suit each operator’s individual needs. Using a system of
menu selections, the operator is guided through the proper operation and set-
up procedures, signaling the appropriate action, and waiting until the correct
steps are taken.
The analyzer is powered by either its internal battery pack, or by an AC
adapter that operates from any convenient source of 100–240 VAC, 50/60 Hz
power. The analyzer’s control panel consists of a bright and easy-to-read 2¼"
× 8" blue vacuum-fluorescent display, sixteen pushbuttons, and one POWER
LED. A sampling probe and hose assembly with an integral thermocouple
and water/filter trap provides the means of drawing in gas samples, and for
measuring stack temperature and pressure.
A burner’s combustion efficiency is calculated by first entering the fuel being
burned and then allowing the analyzer to measure the burner’s primary air
temperature, stack temperature, and percent Oxygen in the flue gas. This
information is processed by the analyzer, resulting in the display of all the
measured and calculated values that are listed in Section 1.3 Technical Data.
For analyzer models that are equipped for environmental monitoring of
combustion by-products, the gas sample that was drawn into the analyzer
through its probe is applied to an array of electrochemical gas sensors. The
results of the analyzer’s gas analyses are shown on the front panel display.
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