BLADEZ CASCADE Owner's Manual page 23

1.0 OUTSTANDING
1.0 < F1 < 2.0 EXCELLENT
2.0 < F < 2.9 GOOD
3.0 < F < 3.9 FAIR
4.0 < F < 5.9 BELOW AVERAGE
6.0 POOR
TROUBLE SHOOTING
E-2 Check if cables were well connected or damaged.
ATTENTION! ALL PRESET DATA WILL BE LOST WHEN YOU UNPLUG THE
POWER (ADAPTOR) FROM THE POWER OR WALL OUTLET.