Exhaust gas analyzer verification system

A control device that is used for an exhaust gas analysis system including:

• an exhaust gas dilution device adapted to mix exhaust gas and diluent gas to produce diluted exhaust gas having a predetermined setting flow rate, and an analyzer adapted to measure a component contained in the diluted exhaust gas, the control device comprising:
• a flow rate reception part that receives a setting flow rate signal that is a signal indicating the setting flow rate;
• an analysis range reception part that receives an analysis range signal that is a signal indicating an analysis range of the analyzer;
• a target flow rate calculation part that calculates a target supply amount of a reference gas on a basis of the setting flow rate and the analysis range indicated by the respective signals;
• and
• a supply flow rate setting part that controls a reference gas supply part and makes a reference gas supply amount by the reference gas supply part equal to the target supply amount.

A method of controlling a verification system used for an exhaust gas analysis system including an exhaust gas dilution device adapted to mix exhaust gas and diluent gas to produce diluted exhaust gas having a predetermined setting flow rate, and an analyzer adapted to measure a component contained in the diluted exhaust gas, the method comprising:

• by a control device,
• receiving a setting flow rate signal that is a signal indicating the setting flow rate,
• receiving an analysis range signal that is a signal indicating an analysis range of the analyzer,
• calculating a target supply amount of a reference gas on a basis of the setting flow rate and the analysis range indicated by the respective signals, and
• controlling a reference gas supply part and making a reference gas supply amount by the reference gas supply part equal to the target supply amount.