ECA 450 Introduction
Instruction 0024-9400
1 Introduction
1.1 General Description
The Bacharach Environmental Combustion Analyzer Model 450 (hereafter
referred to as the ECA 450) is an industrial grade environmental and
combustion efficiency analyzer that is designed for the testing of fuel-burning
combustion equipment. This analyzer is for furnace and boiler technicians
who need to determine combustion safety, environmental compliance, and
efficiency of small to large commercial industrial heating systems.
1.2 Features
• Measures and displays O
2
and CO in the flue gas, pressure (draft),
primary air temperature, and stack temperature.
• Calculates combustion efficiency, excess air, and CO
2
.
• Optionally measures and displays NO, NO
2
, SO
2
, HC (methane equivalent
combustibles), and CO (in the high range of 4,000 to 80,000 ppm).
• Optionally calculates NOx (the combination of NO and NO
2
), and
calculates CO, SO
2
, and NOx individually referenced to a user defined
Oxygen level of between 0 and 15%.
• Automatically purges the low-range CO sensor with fresh air if the CO
level exceeds 4,000 ppm. At this time the analyzer also automatically
switches over to its optional high-range CO sensor, if installed.
• Automatically zeros all sensing channels on ambient air when the
analyzer is first turned on.
• Displays temperature in either °C or °F.
• Displays pressure in either inches of water column (inwc), millibars (mb),
Pascals (Pa), or hecto Pascals (hPa).
• Optionally displays pollution conversions for CO, NO, NO
2
, and SO
2
.
Pollution conversions include parts per million (ppm), pounds of pollutant
per million BTU (#/MBTU), milligrams of pollutant per cubic meter of gas
(mg/m
3
), and grams of pollutant per gigajoule (g/GJ).
• Low battery warning message.
• Stores over 1000 individual combustion and/or pressure test records,
which can later be recalled for viewing or printing.
• Stored test records can be downloaded to a personal computer in comma-
delimited format, which can be captured as a text file and then opened in a
spreadsheet program.
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