Carburetor equipped classic vehicles require expert tuning to restore power and drivability when running on today's unleaded gasoline. Henry Olsen of Performance Motorsports uses the Bridge Analyzers 5-gas exhaust analyzer...
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Combustion (Carbon Oxidation) Efficiency: One of the ways to look at the efficiency of an oxidation process is to evaluate how much of the fuel is oxidized by looking at...
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These models of Bridge gas analyzers use a High technology NiMH battery for local power source. This requires us to have a 'smart' charger built into the unit - as...
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Mind the Filters Diesel engine exhaust can be pretty dirty. Operate the gas analyzer with clean filters. Plan on changing filters (ALL of them) much more frequently than you have...
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The Importance of Using Exhaust Gas Analyzers (EGA) for Superior Motorcycle Performance Tuning It’s riding season, which means it’s time to dust off your bike, get your mind right, and hit...
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Bridge Analyzers has developed a series of Exhaust Gas Analyzers to assist in diagnosing engine emission problems in forklift trucks. Our 4 & 5 gas analyzers are designed to provide...
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Because the amount of excess air varies from application to application, the regulatory agency specifies its emissions regulations for a fixed value, and then requires that the actual gas measurements...
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Here is a link to download the Brettschneider Equation Spreadsheet. Brettschneider Calculation Excel Spreadsheet
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The air-to-fuel ratio (AFR) is an important factor to consider when tuning a motorcycle. It refers to how much fuel and air are mixed together in the engine’s combustion chamber....
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A 2-gas (CO/HC) analyzer which can be used for basic small engine tuning using the CO gas reading to set fuel mixture, and the HC level to confirm running efficiency. ...
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01 Exhaust Gas Analyzer Lambda Worksheet – Brettschneider Calculation – Spreadsheet 03 ...
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Chemical Sensor Carbon Monoxide Measurement: Because CO is a chemically reactive gas, sensors based on the oxidation of CO to CO2 have been used for many years to detect and...
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Technical Overview: The Bridge Exhaust Gas Analyzers use a mix of technologies to make gas measurement. NDIR (Non-Dispersive InfraRed) technology is used to measure CO, HC, and CO2. Chemical Sensors...
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Using Lambda and Combustion Efficiency The Bridge 4 Gas Analyzer (Model 9004) and 5 Gas Analyzer (Model 9005) calculate the Oxygen/Combustibles balance (Lambda) from the values of O2, CO, CO2,...
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Overview of NOx Generation and Measurement: NOx is formed during the early part of the combustion process, where there are high enough temperatures to cause nitrogen (80% of air) to...
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Using a Model 9003 2-Gas (CO/HC) Gas Analyzer for Motorcycle Tuning: CO as an indicator of Air/Fuel Ratio, and HC as an indicator of Combustion Efficiency – Comparison to the...
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The Brettschneider equation is the de-facto standard method used to calculate the normalized air/fuel balance (Lambda) for domestic and international I&M inspection programs. It is taken from a paper written...
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Overview: In the past 30 years, the Exhaust Gas Analyzer has become a standard feature in many workshops. This need has been driven by a combination of requirements – the...
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Combustion (Carbon Oxidation) Efficiency: One of the ways to look at the efficiency of an oxidation process is to evaluate how much of the fuel is oxidized by looking at...
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The Bridge Model 9004 (4-Gas) and Model 9005 (5-Gas) analyzers calculate the Oxygen/Combustibles balance (l – Lambda) from the measured values of O2, CO, CO2, unburned HC, and NOx (for...
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NDIR Technology Overview, Compliance, and Comparison to Other Generally Available Gas Measurement Technologies Overview: Bridge Exhaust Gas Analyzers use two measurement methods for exhaust gas analysis: NDIR for CO, CO2,...
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Air leaks in general: Due to sample gas air dilution, an air leak will cause the CO, HC, and CO2 readings all to be low by an identical ratio. That...
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Exhaust Gas Analyzer Accuracy – Calibration, Warm-up, Zero Drift and Span Errors About gas analyzer accuracy: Gas analyzer accuracy is comprised of two components – absolute error and relative error...
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Alternative Fuels – Measuring HC and Calculating Lambda and A/F Ratio on Gas Analyzers that normally measure Gasoline Fueled Vehicles Bridge gas analyzers prior to ‘Series 3’ versions (Serial numbers...
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