Combined Effect of Compression Ratio and Fuel Injection Pressure on CI Engine Equipped with CRDi System Using Prosopis juliflora Methyl Ester/Diesel Blends

Table 4

Range, accuracy, and resolution of the instruments.

Quantity	Range	Accuracy	Resolution
AVL smoke meter	0–100%	±1%	0.1%
AVL gas analyzer	NOx: 0–5000 ppm	±5 ppm	1 ppm vol
	HC: 0–30000 ppm	±10 ppm	1 ppm vol
	CO: 0–15%	±0.02%	0.01%vol
	CO2: 0–20%	±0.3%	0.01%vol
Engine speed	400…6000 min^−1	±1 min^−1	1 min^−1
Oil temperature	0–125 °C	±4°C	1°C