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Product BrochureProduct Details:
Minimum Order Quantity
NPM SM 111B-NPM MGA2/MGA1
Reason for Testing
Mode of Report
24 to 36 Hours
Type of Fuel to be Used
47.5W x 47.5D x 26H cms
0 to 9.99 m-1
5 to 50 Deg C
Online PUC centers to issue PUC certificates has been recently launched by MoRTH. Netel India limited, manufacturers PUC instruments since 1989 along with other environmental and analytical instruments. Multi gas analyzer and Diesel smoke meters is in use across the country with various vehicle mfrs garages, private puc centres, and petrol pumps of all oil companies such as HPCL, BPCL and IOC. Multi Gas analyzer is used for Petrol, CNG and LPG Vehicle emission measurements.
The Diesel smoke meter model NPM-SM-111B is based on the principle of absorption of light, which is indicative of the quality of smoke. A Green LED driven by a pulsating constant current source. emits a light beam having peak spectral intensity between 550 to 570 nm wave lengths. The beam passes through a smoke cell arid on to a silicon photo detector which continuously senses the intensity or light incident on it and converts it into an electrical signal. which is further processed by precise signal handling circuits. This all solid-state design ensures high stability This output of this stage is given to microprocessor for further processing to convert it into suitable units Including Percentage opacity and absorption coefficient (K).
Smoke sampling is done on free acceleration principle Smoke is measured in smoke cell which has an effective length. of 0.4 meters.