SICK DBS60E-S4FA02500 Incremental encoders. SICK DBS60E-S4FA02500 is a incremental encoders in the DBS60 family. SICK identifies this exact configuration as manufacturer article 1088752. The official technical record specifies MTTF D (mean time to dangerous failure): 500 years (EN ISO 13849-1) 1); Pulses per revolution: 2,500; Measuring step: ≤ 90°, electric/pulses per revolution; Measuring step deviation: ± 18° / pulses per revolution; Error limits: Measuring step deviation x 3; Duty cycle: ≤ 0.5 ± 5 %. The linked SICK data sheet is specific to DBS60E-S4FA02500.