Introduction to the SKF GX Series Microlog
GX Series Microlog Specifications
Preprocessing
• Enveloper (demodulator): With four selectable input filters for enhanced bearing
and gear mesh fault detection
• Filter selection:
– 5 Hz to 100 Hz
– 50 Hz to 1 kHz
– 500 Hz to 10 kHz
– 5 kHz to 40 kHz
• Input parameters:
– Tachometer: TTL / analogue programmable to ±25 V
– RPM range 1 to 99 999
– Tachometer power supply output +5 V at 100 mA
• Input over-voltage protection:
– AC ±50 V peak
– DC ±50 V sustained
• Dynamic range: >90 dB (24 bit ADC sigma-delta)
• Input connectors:
– CH1: Six pin Fischer, CH1, CH2, CH3
– CH2: Six pin Fischer, CH2, CH3
– USB host / CHR / headphone: USB keyboard, CHR, headphones
– USB Device / power / trigger: Seven pin Fischer trigger in, trigger tachometer
power supply, USB COMMS, charger
• Input signal range: ±25 V maximum
Data processing and storage
• Microprocessor: Marvell 806 MHz PXA320
• Internal storage: 128 MB (capable of storing approximately 4 000 spectra)
• SD card: SD memory card up to 16 GB
Measurement
• Range:
– Route measurements: DC to 80 kHz
– Analyzer measurements: DC to 80 kHz
• Averaging: 1 to 255 time averages, 1 to 4 096 spectral averages
• Averaging type: RMS, Exponential, Peak Hold, and Time Sync
• Cursor: Fixed and cursor lock. Single, harmonic and peak pick.
• Trigger modes: Free run or external trigger (trigger slope and amplitude)
• Resolution: Programmable 100, 200, 400, 800, 1 600, 3 200, 6 400, 12 800, and
25 600 lines
• Measurement windows: Hanning, Flattop and Uniform
1 - 30 SKF Microlog - GX Series
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