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Tuesday, November 22, 2011

#40 - Driving Clean and Engine Exhaust Analysis – Part 2

In a previous post we talked about Ontario’s Drive Clean program for monitoring vehicle exhaust.

Edit Oct 2014 - Other posts about engine exhaust
#38 - Driving Clean and Engine Exhaust Analysis - Part 1
#80 - Unique Application – Portable 8 Channel CO analyzer
#193 - Update on Automotive E-testing

Emissions testing is also useful for tuning engines irrespective of government clean air programs. High levels of certain gases may indicate a specific engine condition. For example,

High HC’s may indicate:
- Vacuum leaks
- Ignition system malfunctions
- Incorrect air/fuel mixture

High CO may indicate:
- Dirty air filter, faulty choke or carburetor
- Faulty computerized engine management system and/or oxygen sensor
- Inoperative/missing catalytic converter

High NOx may indicate:
- Inoperative/ineffective exhaust gas recirculation (EGR) system
- Excessively lean/fuel ratio
- Malfunctioning or missing catalytic converter

Nova is interested in engine exhaust analysis because that is something that we can do. Our 7460 Series Portable Engine Exhaust Analyzers are available in various combinations including O2, CO, CO2, HC, & NOx. Our customers have used this analyzer on diesel, gasoline, propane, or natural gas powered 2 and 4 cycle engines. We have even had inquires for exhaust analysis on these little beauties from India:

Check out the 7460 Series in our on-line catalog.

The 7460 Series is a portable analyzer that uses infrared and electrochemical sensors / detectors. As such, it does not likely qualify for official regulatory use such as in Ontario’s Clear Air Program.

We do build these analyzers to meet Bar 97 and ISO 3930/OIML R99, Class O specifications. Therefore, many mechanics have effectively used this analyzer for reliable engine tuning and emissions reduction. We have noticed that this analyzer is also popular among equipment mechanics who work on forklifts and other non-road vehicles.

Added March 2013 - We have noticed that our fork-lift customers frequently print on the analyzer cabinet the target gas readings for a properly tuned engine. For example, we have a couple of units in the Nova lab right now being calibrated for one of our customers. They have printed the following target gas readings on the analyzer:
  • O2: 0.8 % to 2.0 %
  • CO: 0.1% to 0.8 %
  • CO2: more than 11.0 %
  • HC's: less than 200ppm

We have even sold a couple of these analyzers for high altitude use in the Kyrgyz Republic (Kyrgyzstan). A facility located somewhere in the Tien Shan Mountains at an elevation of 4000m / 13,100ft is using our analyzers for mechanical maintenance of site equipment.

Nova equipment is somewhere in them hills!

If you are in the business of tuning engines and require analysis of engine exhaust, ask Mike or Dave about the 7460 Series Gas Analyzers.

sales at nova-gas dot com
websales at nova-gas dot com
If you have a LinkedIn account, search for Nova Analytical Systems under Companies and follow us if you want.

For additional information, please see the following links:

Photo of vehicle
Copyright © 2006 Panchnath Auto Pvt. Ltd.

Photo of Tien Shan Mountains © Kopylov Vladimir

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