Smokemeter Mark 4 HV Opacimeter, Diesel Engine Exhaust Tester Hartridge – Made in UK Included- – Trolley/ Cabinet – Lucas Printed Circuit. How to choose the correct diesel exhaust emission smoke meter for automotive diagnostic use and MOT/DOT (also know as HSU – Hartridge Smoke Units). There are two groups of conventional smoke meters include the Hartridge or Bosch RTT opacity meters.

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The item may have some signs of cosmetic wear, but is fully operational and functions as intended.

Smoke Opacity

Buy it now – Add to Watch list Added to your Watch list. Representative APR variable They appear to hold promise for application to newer engines with much lower particulate emissions, including engines fitted with particulate filters. Add to Watch list Watching Watch list is full.

Mouse over to zoom – Click to enlarge. Email to friends Share on Facebook – opens in a new window or tab Share on Twitter – opens in a new window or tab Share on Pinterest – opens in a new window or tab. Use of EGR msoke combustion temperatures and oxygen concentration in the burned gases. In view of the demands of advanced, low emission diesel engines, the following areas of concern can be identified in conventional smoke opacity meter mefer. Mechanisms of Formation of Soot and PM.

They are often used to evaluate smoke emissions in locations outside the laboratory, such as in maintenance shops or in the field. Since opacity readings may be affected by sulfates, HCs, water vapor, as well as by PM composition or physical conditions e.


The item you’ve selected wasn’t added to your basket. Higher combustion rates are obtained by increasing fuel air mixing through use of high swirl rates, by increasing injection rate and improving fuel atomization.

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Second generation opacity meters based on laser light scattering are hadtridge more sensitive and appear to hold promise for application to newer engines with much lower particulate emissions. This item may be a floor model or an item that has been returned to the seller after a period of use.

See all jrmotorservices has no other items for sale. Visible black smoke emissions from diesel engine result on account of high concentration of soot in the exhaust gas. Advancing injection timing increases combustion temperatures and allows more time for oxidation of soot thereby reducing smoke emissions. Learn more – opens in new window or tab. The seller hasn’t specified a postage method to United States.

Be the first to write a review. No additional import charges on delivery. However, as no satisfactory solution has yet been found, conventional opacity meters based on light extinction measurement may become gartridge with devices utilizing other measurement principles.

Smoke opacity limits may be haartridge included as auxiliary limits in new engine emission standards. Get the item you ordered or your money back. This is a preview of the paper, limited to some initial content. Learn More – opens in a new window or tab Any international postage and import charges are paid in part to Pitney Bowes Inc. For additional information, see the Global Shipping Programme terms and conditions – opens in a new window or tab This amount includes applicable customs duties, taxes, brokerage and other fees.


Learn More – opens in a new window or tab. Back to home page. Numerous correlations between opacity or smoke readings and PM mass that have been developed can provide only approximate results. An item that has been previously used.

HSU – Hartridge Smoke Unit (exhaust gas measurement) | AcronymFinder

As the diesel particulate matter PM mainly consists of soot and the adsorbed unburned hydrocarbons SOF on soot core, the PM content has been related to exhaust soot content and HC concentration as below. This item will be sent through the Global Shipping Programme and includes international tracking. Select a valid country.

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Accepted, Eligibility for PayPal Credit is determined at checkout. Smoke opacity readings generally do not correlate well with other PM measurement parameters. Skip to main content. Please snoke up to 7 characters for the postcode.

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In fact, the smoke opacity measurement is the only relatively low-cost and widely available method to measure a PM-related emission parameter in the field.