Filter - IBA ibaMS8xIEPE Manual

When set to IEPE mode (default setting) an integrated constant current source provides
4 mA (30 V DC) for the connection of IEPE sensors. However, when the inputs are used
as 24 V input, the configuration to 24 V mode has to be done in ibaPDA before wiring,
see chapter 9.1.2!
7.3.1

Filter

All used filters are permanently active.
Figure 2:
RC high-pass:
The cutoff frequency depends on the mode:
Mode
IEPE 0.1 Hz
IEPE 1 Hz
24 V DC
24 V AC
Anti-aliasing Butterworth 4th order:
The cutoff frequency depends on the sampling rate:
Sampling rate
≤ 8 kHz
> 8 kHz
Digital anti-aliasing filter:
Parameter
Group run time
Settling time
Pass bandwidth
-3 dB bandwidth
Stopband frequency
Stopband attenuation
14
Filter sections
Cutoff frequency
Cutoff frequency
Manual
0.1 Hz
1 Hz
-
1 Hz
4 kHz
20 Hz
Value
37 / f
74 / f
0.453 x f
0.49 x f
0.547 x f
100 dB
Issue 1.3
ibaMS8xIEPE