Anti-Aliasing Filter

Hello,

I am having trouble disabling the default anti-aliasing low pass filter in my IEPE channels. (Dewesoft Krypton Hardware) I am fine with the 100kHz hardware filter but need raw vibration data for FFT post-processing. I read in another forum post that the sample rate needs to be set at 20kHz to provide the option, unfortunately that did not resolve the issue. I have my default lp filter set to 'off' in the DewesoftX options settings.

Dear Freek van der Linden,

thank you for reaching out to us.

As specified in the Krypton manual, pages 78 and 79, our Krypton-ACC devices utilize a Hardware filter that cannot be turned OFF in the channel setup, regardless of the sample rate:

Here's what the behaviour looks like in Channel setup:

Devices, such as for example SIRIUS devices, do have a Low-pass filter that can be turned off, as long as the Dynamic acquisition rate is the same as the channel's sample rate:

Best regards,

Dewesoft team