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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Smoke emissions can be reduced by accelerating combustion.

Visit my eBay smoie. 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. No additional import charges on delivery. Report item – opens in a new window or tab. Accepted, Eligibility for PayPal Credit is determined at checkout.

Diesel Smoke Visible black smoke emissions from diesel engine result on account of high concentration of soot in the exhaust gas. Since opacity readings may be affected by sulfates, HCs, water vapor, as well as by PM composition or physical conditions e.

Initially, smoke emission standards for production diesel vehicles were in force to control black smoke. 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.

International postage paid to Pitney Bowes Inc. Please enter a valid postcode. Back to home page. We may receive commission if your application for credit is successful. Resume making your offer if the page doesn’t update immediately. Smoke opacity instruments measure optical properties of diesel smoke, providing an indirect way of measuring of diesel particulate emissions.

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Advancing injection timing increases combustion temperatures and allows more time for oxidation of soot thereby reducing smoke emissions. Full access requires DieselNet subscription. Smoke and smoke opacity meters are instruments measuring the optical properties of diesel exhaust.

Genesis and Mechanism of Formation of Engine Emissions. The item may have some signs of cosmetic wear, but is fully operational and functions as intended.


Learn more – opens in new window or tab. They are often used to evaluate smoke emissions in locations outside the hartricge, such as in maintenance shops or in the field. Terms and conditions apply. Add to basket. Smoke opacity limits may be also included as auxiliary limits in new engine emission standards.

What is Hartridge Smoke Unit (HSU) ? for Diesel engine emission | Physics Forums

Redeem your points Conditions for uk nectar points – opens in a new window or tab. Sign up for newsletter. Smoke emissions increase with increase in engine load due to overall richer fuel-air ratios and hence, the rated engine power was specified based on the maximum permitted smoke density to curb black smoke emissions during engine operation. Subject to credit approval.

Most purchases from business sellers are protected by the Consumer Contract Regulations which give you the right to cancel the purchase within 14 days after the day you receive the item.

Smoke Opacity

This item may be a floor model or an item that has been returned to the seller after a period of use. Make offer – Loading Mechanisms of Formation of Soot and PM. Poor control of fuel injection rate during acceleration also increases smoke. Contact the seller – opens in a new window or tab and request post to your location.

Red, however, is less sensitive to small particles than green. This amount is subject to change until you make payment. Find out more about your rights as a buyer – opens in a new window or tab and exceptions – opens in a new metre or tab. Learn more – opens in a new window or tab. Seller information mete The actual VAT requirements and rates may vary depending on the final sale. However, as no satisfactory solution has yet been found, conventional opacity meters based on light extinction measurement may become replaced with devices utilizing other measurement principles.


Use of EGR reduces combustion temperatures and oxygen concentration in the burned gases.

What is Hartridge Smoke Unit (HSU) ? for Diesel engine emission

Get an immediate offer. Smoke has also been measured by filtering a fixed volume of exhaust gases through a filter paper and the smoke stain thus formed is evaluated on a grayness scale by a light reflectance meter Bosch smokemeter. Correlations have been developed to estimate PM mass emissions based on opacity measurement. Frequently bought together Feedback on our suggestions – Frequently bought together.

Learn More – opens in a new window or tab Any international postage and import charges are paid in part to Harttridge Bowes Inc. Numerous correlations between opacity or smoke readings and PM mass that have been developed can provide only approximate results. Buy it now – Add to Watch list Added to your Watch list. The NO metrr cross-sensitivity could be eliminated by switching to a different light wavelength, e.

Harttridge not post to United States – Read item description or contact seller for postage options.

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