Chassis Dynamometers
The DC machine and A.C. machine Chassis Dynamometers are used for complete road simulation, measurement of vehicle emission, constant speed fuel consumption, and vehicle performance. These dynamometers are suitable to test vehicles as per the Indian, EEC and EPA Emission Regulations.


Specifications of Chassis Dynamometers

Parameter FCL make    2-Wheeler BEP make 3-wheeler BEP make 4-wheeler FCL make HCV Type DC Machine AC Machine AC Machine DC Machine Maximum power 5 kW absorption / motoring 50 kW absorption / motoring 149 kW absorption / motoring 155 kW absorption / motoring Maximum Speed 100 km/h 200 km/h 200 km/h 100 km/h Maximum tractive effort 250 N 2233 N 5844 N 14000 N Vehicle inertia range Up to 335 Kg. 100-450 kg for 2-Wheeler, 400- 1500 kg for 3-Wheeler 120-5443 kg Universal dyno for 2W, 3W & 4W Up to 32000 Kg. Roller diameter 610 mm 610 mm 1220 mm 2500 mm. Width over rollers -- 1900 mm 2742 mm 2800 mm. Space between the rollers -- Single roller Single roller 800 mm

Constant Volume Sampler and Dilution Tunnel
The Constant Volume Sampler (CVS) and Dilution Tunnels are suitable for emission measurement of 2 wheelers, 3 wheelers, and 4 wheeler passenger cars, and light commercial vehicles as per the Indian, EEC and EPA Emission Regulations. These tunnels are especially used to measure particulate in diesel vehicles.

Specifications of CVS and Dilution Tunnels

Parameter HORIBA CVS 7200 Fisher Rosemount CVS with dilution tunnel HORIBA CVS with Dilution Tunnel –7400T Beckman CVS with dilution tunnel Venturi Sizes 2, 3, 4.5 & 6 m3 / min 2, 3, 4.5, 6, 9, 12 m3 / min  4.5, 6, 9 & 12 m3 / min. Maximum flow 32 m3 / min. 200, 400, 600, 1000 SCFM Tunnel diameter - 10 inches 12 inches 18 inches Filter Holder Assembly - 70, 47 mm  Ø 70, 47 mm  Ø 70, 47 mm Ø

Exhaust Gas Analyzer for dilute emissions
The world class analyzers are used to measure different constituents of the automotive exhaust gases, such as hydrocarbons, carbon monoxide, carbon dioxide, oxides of nitrogen from diesel, gasoline, LPG and CNG vehicles. Non-methane hydrocarbons from CNG vehicles can also be measured. The latest generation analyzer is based on dirty/ clean line concept for distinguishing between clean and dirty engines during emission measurement.

The specifications of emission analyzers are

Analyzer Horiba 7200 H Fisher Rosemount NGA Analyzers Horiba 9200 F Low Co Range 0 – 50 to 5000 ppm 0 - 50 to 2500 ppm 0 – 100, 300, 1000, 3000 ppm High Co Range 0 - 0.5 to 12% -- 0 – 0.6, 1, 3, 10% CO2  Range 0 – 0.5 to 20% 0 – 0.5 to 5% 0 – 1, 2, 6 and 8% NOx Range 0 –10 to 10000 ppm 0 – 10 to 800 ppm 0 – 10, 20, 50, 100, 200, 1000, 2000, 5000 ppm THC   Range 0 – 10 to 20000 ppmc 0 – 50 to 10000 ppmc -- THC heated Range 0 – 10 to 50000 ppmc           0 – 50 to 10000 ppmc 0 – 20, 50, 100, 200, 1000, 2000, 5000, 10000 ppmc Methane (GC) Range  0 – 100 to 2500 ppmc 0 – 50 to 10000 ppmc -- Heated HC with Methane Cutter Range 0 – 10 to 5000 ppmc 0 – 50 to 5000 ppmc -- Accuracy ± 2 % ± 2 % ± 2 %

Specification for Clean and Dirty Line Exhaust Emission Analyzer (HORIBA 7400 DLE)

Sr. No. Description Specification 1 Make Horiba 2 Range   Dirty line CO(L) 0- 50 to 5000ppm CO2 0- 0.5 to 20 Vol% CH4 0 - 5 to 50ppm & 0-100 to 2500ppm THC 0-10 -500ppmc1 & 0-1000-20000 ppmc1 THC/CH4 0-10 -500ppm & 0-1000-5000 ppm NO/NOX 0-10 -500ppm & 0-1000-10000 ppm Clean line CO(LE) 0- 10 to 500ppm CO2 0- 0.5 to 20 Vol% THC 0-10 -500ppmc1 & 0-1000-20000 ppmc1 NO/NOx 0-10 -500ppm & 0-1000-10000 ppm CH4 0 – 100 to 2500 ppmc 3   Accuracy ± 2 %

Secondary dilution tunnel / particulate sampling system
During the measurement of particulate matters for HCV applications, the secondary dilution tunnel and the existing CVS with an 18" diameter dilution tunnel is used to keep the temperature of diluted gas below 52.7ºC.