Siwarex WP241 setting threshold for filtering outlier

Hello,

I am working on a continuous weighing system with wp241 and having a problem that "variation of measurement constantly occur at fix location on the belt"

I manage to get belt load (kg/m), speed (m/s) with the fix trace rate (1second) from the data I get from Siwatool V7.1.37.0, there is a region of outliers

FYI, I am using a belt with a short length (7.089m) and the outliers are appearing +/-1m (total 2m) around the joint of the belt (fix location) creating (from +5kg/m to -1.2kg/m) which have the high impact on average of measurement (5m reading with small variation +1kg/m to -0.5kg/m) .

Is there any function in wp241 can take care of outlier or filter it out?

Or is there any function in wp241 can remember the trend of the data base on location and offset itself which can further help me to reduce the variation of measurement to the minimum fluctuation.

Please see the attached picture on graph: belt load vs time (from trace data), belt load vs location (I calculated the location based on speed and assuming maximum error as a starting point (starting point and ending point is the same point)

Hi, Siwarexi,

Thanks for the suggestion but I did try on 0.05Hz (lowest frequency for low pass filter according to manual). The damped measurement doesn't help my case. (I only tried 0.05Hz and 0.2Hz, will try on other frequency when available)

As I mentioned in the question I am using a short belt (7.089m) where the error I need to filter out is ~2m which is about 25% off whole belt system, reduce low pass filter frequency manages to reduce the maximum fluctuation (not every cycle) of the system but it also drags the error beyond 30% of the system (another problem). In measurement average wise, reducing the low pass filter frequency is not able to solve my problem.

Ya, I think I will need to compensate the measurement in the PLC. 

Thanks Siwarexi.