Yokogawa Standalone MW100 - Manual (Page 121)

2-33 IM MW100-01E
Installation and W
iring
1
2
3
4
5
App
Index
If the first-order lag filter is applied to the input signal, low-pass filter frequency
characteristics shown in the figure below are attained.
Cutoff band
0dB
–3dB
Pass band
Frequency
Attenuation
Cutoff frequency
If the time constant of the first-order lag filter is set long, the cutoff frequency is lowered,
and frequency bandwidth that can be rejected is widened. Set an appropriate time
constant according to the frequency of the noise you wish to reject.
2.9 Measures Against Noise on the MW100 Data Acquisition Unit