Flow testing system CVS Gasboard-9802

constant volume samplingfor automotive applications

Cubic Automotive Test Systems The Full-flow Dilution Constant Volume Sampling System Introduction The Gasboard-9802 full-flow dilution constant volume sampling (CVS) system is designed for the measurement of diluted emissions from vehicles and engines. It has a complete and technologically advanced hardware configuration and software platform. When used in conjunction with a high-precision gas and particle online analyzer, it meets cold-start emissions test requirements under normal laboratory conditions for major mobile source emission standards, including the upcoming Euro 7 standard. Features • With a wide range of diluted exhaust flow options, it accommodates the testing of engines and vehicles powered by various fuels and with different displacements. • Integrated with a high-performance heat exchanger and a venturi tube, it ensures precise control of diluted exhaust flow, guaranteeing system accuracy and stability. • Combined with the constant temperature control function of the heat exchanger and the air bag cabinet, it effectively prevents the condensation of diluted exhaust. • Equipped with a high-performance dilution air filter, it can meet the requirements for emission testing at ultra-low emission levels. Specifications CVS Flow Rate: 1~12 m³/min; 3~24m³/min; 9~60 m³/min; 30~150m³/min CVS Temperature Control: 40±5°C Air Bag Sampling Flow Rate: 3L/min, 6L/min, 9L/min CVS Configuration: Up to 8 gas bags configurable Particle Sampling Flow: 35~65L/min Environmental Conditions: Ambient temperature: 5~35°C; Relative humidity: <80%RH; Atmospheric pressure: 80~102 kPa