B A C H A R A C H
®
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7
Combustion & Environmental Analyzers
TECHNICAL DATA
Measurements & Ranges
Oxygen
0.1 to 20.9%
Carbon Monoxide
0 to 4000 ppm
(hydrogen compensated)
Carbon Monoxide (high)*
4001 to 80000 ppm
Nitric Oxide*
0 to 3500 ppm
Nitrogen Dioxide*
0 to 500 ppm
Sulfur Dioxide*
0 to 4000 ppm
Combustibles*
0 to 5.00% (application dependent)
Stack Temperature
-4 to 2400 degrees F (-20 to 1315˚ C)
Primary/Ambient Temperature
-4 to 999 degrees F (-20 to 999˚ C)
Pressure/Draft
-27.7 to 27.7 inches of H
2
O
Calculations & Ranges
Combustion Efficiency
0.1 to 100.0%
Excess Air
1.0 to 250%
Carbon Dioxide (dry basis)
0 to fuel dependent maximum
NO
X
(NO
X
= NO + NO
2
)
0 to 4000 ppm
NO
X
referenced to % O
2
0 to 17000 ppm
CO referenced to % O
2
0 to 99999 ppm
NO referenced to % O
2
0 to 14900 ppm
NO
2
referenced to % O
2
0 to 2100 ppm
SO
X
referenced to % O
2
0 to 17000 ppm
Accuracy
Oxygen
± 0.3% O
2
on practical concentration of
flue gas
Stack or Flue Gas Temp.
± 4°F between 32 and 255°F
(± 2°C between 0 and 124°C)
± 6°F between 256 and 480°F
(± 3°C between 125 and 249°C)
± 8°F between 481 and 752°F
(± 4°C between 250 and 400°C)
Primary-air/ambient Temp.
± 2°F between 32 and 212°F
(± 1°C between 0 and 100°C)
Pressure/Draft
± 2% of reading or ± .02 in wc
whichever is greater
CO
± 5% of reading or ± 10 ppm, whichever is greater between
0-2000 ppm CO
± 10% of reading between 2001 to 40000 ppm CO
NO
± 5% of reading or ± 5 ppm, whichever is greater between
0-2000 ppm NO
NO
2
± 5% of reading or ± 5 ppm, whichever is greater between
0-500 ppm NO
2
SO
2
± 5% of reading or ± 10 ppm, whichever is greater between
0-2000 ppm SO
2
HC
± 5% of full scale
Selectable Fuels
Natural Gas, Oil #2, Oil #4, Oil #5, Oil #6,
Propane, Coal, Wood, Kerosene, Bagasse
Power
Universal AC adapter and an internal battery pack.
Adapter will accept input voltages from 100 to
240V. Fully charged battery pack provides a
minimum of 8 hrs of operation
Pumps & Probe
Two pumps are included. The first pump supplies gas
sample to the sensors. The second pump supplies
fresh air to purge the low range CO sensor when CO
levels exceed 4000 ppm. Probe includes a standard
probe and hose assembly equipped with a water trap,
particulate filter, probe stop, 15 feet of hose, and
12-inch probe tube.
Size
13.5” H x 18.5” W x 9” D (34.3cm x 47.8cm x 22.9cm)
Weight
25 lbs. (11.34 kg)
Warranty
1 year, extended warranty available
*
Optional
ORDERING INFORMATION
PART NO.
DESCRIPTION
24-7221
Base Unit (O
2
, CO, T
s
, T
A
, DP)
24-7229
ECA 450 without probe & hose
24-8400
ECA 450 NO
x
kit with conditioner
24-8401
ECA 450 NO
x
& SO
x
kit with conditioner
24-7289
Base Unit (O
2
, CO, T
s
, T
A
, DP)
w/ wireless hand-held remote **
PART NO.
PROBE ASSEMBLY
24-3023
12” probe assembly
24-3024
24” probe assembly
24-3025
36” probe assembly
24-7223
Heavy duty sample conditioning system (EPA/ETV Test
Verified performance). Includes Peltier chiller unit with
integral condensate pump, 15’ heated hose assembly
with probe and built-in temperature controller
24-7224
Compact sample conditioner/probe assembly. Includes
Peltier chiller/probe assembly, built-in filter, condensate
pump and 15’ hose assembly
24-3035
24” High temperature probe assembly
24-3036
36” High temperature probe assembly
24-3037
48” High temperature probe assembly
24-1124
20 ft hose extension
24-1172
Water Trap/Filter Assembly (for probe and hose assembly)
PART NO.
FACTORY INSTALLED SENSOR KITS
24-3026
CO (high) Sensor
24-3027
NO Sensor
24-3028
Combustibles Sensor
24-3029
NO
2
Sensor
24-3030 SO
2
Sensor (requires NO
2
option)
PART NO.
ACCESSORIES
07-1644
Filters (pkg. of 3)
24-7059
Calibration Kit (does not include gas)
104-1800
Thermocouple Wand Extension, 5 feet
104-4027
Serial Cable DB9M to DB9F
24-0980
Printer Paper (5 rolls)
** The wireless, hand-held remote is recommended for use of up to 300 ft. indoors
with normal obstructions and up to 1,000 ft. outdoors.
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