MP 26 Transmitter Installation and Calibration Manual
Minebea Intec
4.7. Setting the Low Pass Filter and Bandwidth
Filter Time
A first order mathematical low pass filter with adjustable time constant and bandwidth is
built-in. The time constant of the filter must be greater than zero. Normally higher values
result in good suppression of disturbances, but in an increased delay of the input signals, i.e.
the weight updating on the display will be slower.
This time constant is set in t.F1 as follows:
1. Press for more than 3 sec.
2. It will move to Inst or and go to Param and press .
3. It will display InP.1, now press until you reach
t.F1.
4. Using or , set the desired time constant (ms) whose range is 0.0....999.9, default is
5.0 ms, then press .
5. Press until end is reached.
6. Press to go to normal display mode.
Bandwidth
The bandwidth is the adjustable tolerance around the measured value within which the filter
is active.
Measurement value changes in excess of the adjusted bandwidth are not filtered.
The bandwidth is set in b.F1 as follows:
7. Press for more than 3 sec.
8. It will move to Inst or and go to PArA and press .
9. It will display InP.1, now press until you reach
b.F1.
10. Using or , set the desired bandwidth whose range is 0.0 .... 999.9, default is 5.0
then press .
11. Press until end is reached.
12. Press to go to normal display mode.