The highest possible data quality is generated through sophisticated software and hardware in four key areas.

1) Patented T- DAC™ Technology.
Allows the speed of the dilute mass flow controller to correctly correlate the sample flow with the actual engine exhaust mass flow.

2) Sample Flow Rate Confirmation.
A third mass flow meter confirms the sample flow rate by comparing the measured flow to the set flow of the Model BG-3. This serves as a Go/No Go sample flow check before each test.


Third mass flow meter shown inside the Model BG-3

3) Validation.
The Model BG-3 continuously controls and validates all critical operational and calibration data parameters and readings
during each test. Engineers can make decisions during and after a test.


Model BG-3 Main Screen

4) Calibration.

• Fully automated daily calibration between each test.

• Fully automated leak check, zero/span check of the system.

• Filter face velocity (sample mass flow rate) for filter size

The Model BG-3 is engineered for accuracy! Its superior T-DAC technology (Transient Dilution Airflow Control) allows engine manufacturers to collect extremely accurate data, very quickly. Finally, engine manufacturers can comply with the strict 2007 regulations with accuracy and speed.