±10% Hysteresis
Limit
Flow Outside
Hysteresis Limit
3 Samples Outside
Hysteresis Limit
Bad Data Rejection
Window
Flow
1 2 3
150
100
50
0
110
90
Sample
Limits
Figure 39: Bad data (rejection)
The flow rate is again outside the original ±10% Hysteresis window, but the data exists for a time period greater than the
Bad Data Rejection window. In this instance, the meter interprets the data as a new valid flow rate and moves the Hysteresis
window to correspond with the new established flow rate.
New
±10% Hysteresis
Limit
Old
±10% Hysteresis
Limit
Bad Data
Rejection Window
150
100
50
0
110
90
Flow
1 2 3 4
4 Samples Outside
Hysteresis Limit
Flow Outside Original
Hysteresis Limit
Figure 40: New valid flow data
Parameter Descriptions by Menu
Page 30 October 2019TTM-UM-02222-EN-04