FUJI METER Opacity Meter

The methods in measuring the density of
smoke in brief are:
1. With eyesight
- To measure the density of smoke in accordance with uniformed diagram.
- To measure the alteration of ray from source of light through the gas exhausted.
2. Physical way
- To weight the solid substances in a certain volume of exhausted gas. And in the medium or smaller
plants, measurement of the density of smoke relies upon the Ringelman way, which is the standard in
regulating the smoke in many of the countries.
CHARACTERISTIC
The smoke indicator for practical application of Ringelman diagram, and is indispensable for minimizing
contamination of the air and saving fuel.
METHOD
To overcome the many disadvantages in conventional Ringelman way, the diagram is imprinted on the special
film inside for practical measuring of the density of smoke observed through.
PRACTICAL
The measuring distance of 16 m. which is required in conventional way, is not necessary in "THE SCOPE", as the
diagram is inside of it.