| qmin1 ----Min. flowrate (multi-path meter) |
| qmin2 ----Min. flowrate (single-path class-I meter) |
| qmin3 ----Min. flowrate (single-path Class-II meter) |
| qmax ----Max. flowrate |
| qt1 ----Boundary flowrate (multi-path meter) |
| qt2 ---- Boundary flowrate (single-path class-I meter) |
| qt3 ----Boundary flowrate (single-path class-II meter) |
| Yellow ---- Multi-path meter |
| Blue ---- Single-path class-I meter |
| Green ---- Single-path class-II meter |
