Learn condition monitoring
Practical guides to vibration analysis, motor current analysis and the standards behind them, from the team that builds the Prism AI analyzer.
Vibration analysis
Bearing fault frequencies: BPFO, BPFI, BSF and FTF explained
Where the four defect frequencies come from, how to calculate them and how to find them in a spectrum.
Standards
ISO 20816-3 vibration severity zones explained
Zones A to D, machine groups, rigid and flexible supports, and how to set alarm and trip levels.
Motor current analysis
Broken rotor bar detection with MCSA
Slip, the (1 ± 2s)f sidebands, how to grade them in dB and what makes readings misleading.
Free tool
Bearing fault frequency calculator
BPFO, BPFI, BSF and FTF in Hz and orders from bearing geometry and shaft speed.
Put the theory to work on your machines.
Send us a week of data from one machine and we walk you through what Prism finds.