ECA 450 Environmental Emissions Analyzer

Portable Environmental Emissions 7-gas Analyzer for Industrial Applications

The Bacharach ECA 450 is a Portable Environmental Analyzer for Industrial Applications for professionals concerned about combustion efficiency, environmental compliance, or both.

  • Measures up to 7 gases simultaneously (minimum O2 and CO), including NOx, SOx and combustibles
  • Sensors are easily replaced or upgraded in the field
  • Rugged suitcase design with large, easy-to-read display
  • Built-in printer for instant traceability and record-keeping
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The ECA 450 Environmental Emissions Analyzer is an industrial grade analyzer ideal for professionals concerned about combustion efficiency, environmental compliance, or both. Accommodating up to seven sensors, simultaneous measurements and calculated parameters are evaluated to ensure that industrial equipment is meeting environmental regulations while burning safely and efficiently.

The ECA 450 is designed for on-demand or semi-continuous sampling of industrial furnaces, boilers and other industrial combustion equipment. It complies with regulations such as U.S. EPA test methods, EN 50379, CTM-030 and state/local protocols including SCAQMD.

*Note: The ECA 450 calculates CO2 values based upon other measured values during the combustion process. It does not measure CO2 directly.

  • Product Specifications
  • Technical Library
  • Part Numbers
  • Accessories and Parts
  • Gas List
Sensors: 3 to 7
Measuring Range: O2: 0 to 20.9%
CO (low-range, H2, compensated): 0 to 4000 ppm
CO (high-range, optional): 4001 to 80000ppm
NO (optional): 0 to 3500 pp
NO2 (optional): 0 to 500 ppm
SO2 (optional): 0 to 4000 ppm
Combustibles (optional): 0 to5% vol. (application dependent)
Stack Temperature: -4 to 2400°F (-20 to 1215°C)
Draft / Differential Pressure: 27.7 inH2O (±69 mbar)
Power: Internal rechargeable battery or via supplied wall adapter
Run Time: 8 Hours
Warm-Up Time: 60 Seconds
Digital Communications: RS-232
Ambient Temperature: Analyzer: 32 to 104 °F (0 to 40 °C) Probe: 1,472 °F (800 °C)
Humidity: 15 to 90% RH (non-condensing)
Altitude: 1 ATM ± 10%
Product Dimensions (L×W×H): 13.5". × 18.5" × 9" (34.3 × 47.0 × 22.9 cm)
Product Weight: 25 lb. (11.3 kg)
Fuel Equations: Natural gas, coal, oil 2/4/5/6, wood, kerosene, bagasse, propane, LPG, KOKS, LEG, biofuel
Approvals: CE
Internal Memory: 1,000 Records
Warranty: 1 Year (Including Sensors)
Country of Origin: United States
Description North America Part Number
ECA 450 with O2 and CO sensors and probe with 12 in. sample tube (approximately 15 ft. total length), water trap, particulate filter and probe stop 0024-7221
ECA 450 with O2, CO, NOx kit (NO and NO2 sensors) and compact sample conditioner 0024-8400
ECA 450 with O2, CO, NOx & SOx kit (NO, NO2 and SO2 sensors) and compact sample conditioner 0024-8401


All kits include:

  • Spare filters (qty. 3)
  • Spare printer paper (qty. 1)
  • Wall adapter/charger
  • User manual
Description Part Number
O2 sensor 0024-0788
Probe with 24 in. sample tube 0024-3024
Probe with 36 in. sample tube 0024-3025
Calibration Kit (includes variable-flow regulator, fittings and tubing) 0024-7059
High temperature particulate filter 0024-3150
Sample conditioner 0024-7224
20 ft. hose extension 0024-1124
Printer paper (5 rolls) 0024-0980
Probe filters (package of 3) 0007-1644
Thermocouple (10 ft., for combustion air temperature) 0104-1797
Thermocouple (1 in., for ambient air temperature) 0104-1798
Pressure hose (6 ft. of 1/8 in. I.D. tubing with female draft connector) 0024-1103
Probe handle replacement kit 0024-1514