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    Reliability Engineer
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    Seeq Beginner

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  1. For the signals summing: ($A+$B+$C).setMaxInterpolation(5d).setUnits("kW") For each signal $A, $B and $C in the operation the general formula: $signal.replaceNotValid(0).agileFilter(1min)
  2. Thanks Thorsten, I already tried both validvalues() and setMaxInterpolation(), it didn't solve the question! Note: the gaps areas correspond to invalid data replaced by 0 using replaceNotValid(0) in the summed elements. The total seems not recognizing the replaced data.
  3. Hello, I am wondering why does a signal representing the sum of 3 signals have no values in some periods? Thanks
  4. Hi all, I wanted to create a signal that calculate my compressor daily lube oil consumption. I used the score card metric function to calculate the daily rate change, but the issue is that when we fill in the tank, the calculation will provide wrong value. shall I create short capsules for each filling event and calculate the daily rate between two capsules? or is there any other easier method 🙂 ? Thanks
  5. Can I connect my rotating equipment vibration sensors directly to SeeQ for spectrum analysis. Data sampling rate is in the range of 5kHz.
  6. Hi experts, Could someone advise please: I have a signal with missing data and tried to fill the missed data gap. it's a straight forward line as you see in the attachment. I use the $signal.setMaxInterpolation(4weeks) formula, but the produced signal is looking similar to the original one with no interpolation. did I missed something with the interpolation. Thanks in advance Yassine
  7. Perfect.. it works.. the only thing I changed from your approach is that I used for Current_hours as the running run-hours from the compressor itself and not the created signal max_run_hours so the MTBF 1 trend looks sloped compared to the MTBF you proposed. That works pretty fine. Thanks Patrick
  8. Hi, I would like to calculate the MTBF (Mean Time Between Failures) of a compressor. I have the running hours signal and captured capsules for failures. I want to create a trend showing the MTBF over time (MTBF= [current running hour - running hours at the beginning of the year]/the number of failures during the running year). Q1: I used $Capsule.aggregate(count(),years(),startkey()).toStep() to display failures trend (it should be increasing over a year with the new failures) but this gives me the total over that year without showing step change against the next failure capsule. Q2: how can I implement the MTBF formula in my calculation? Thanks
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