User's Manual

55
Brand of ACOEM
 Parameter unit: depend on parameter:
Acceleration
g, m/s2
Velocity
mm/s, in/s
Absolute displacement
µm, mils
Defect factor
DEF
Relative displacement
µm, mils
Position
µm, mils
Rotation speed
Hz, CPM
Pressure
Bar, PSI
Flow
m3/s, l/s, kg/s
Temperature
°C, °F
Kurtosis
Ku
Other
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3.7.5.2 Tabs 2 and 3 for “Spectrum” measurement type:
Tab “Spectrum”:
 High-pass filter: None, 2 Hz (120 CPM), 10 Hz (600 CPM)
Note: “None” is not accessible in case of integration:
o Input = accelerometer and parameter = velocity or absolute displacement
o Input = Velocimeter and parameter = absolute displacement
 Frequency range: 80 kHz (4800 kCPM), 40 kHz (2400 kCPM), 20 kHz (1200 kCPM), 10 kHz (600 kCPM),
5 kHz – 300 kCPM), 2 kHz (120 kCPM), 1 kHz (60 kCPM), 500 Hz (30 kCPM), 200 Hz (12 kCPM), 100
Hz(6000 CPM), 50 Hz (3000 CPM)
 Number of lines: 100, 200, 400, 800, 1600, 3200, 6400, 12.8k, 25.6k, 51.2k, 102.4k
Limitations:
o If licence = Advanced: 6400 max
o If 3 or 4 channels: 51.2k max
o If zoom≠ 1 : 25.6k max
o If Analysis mode = Synchronous : 6400 lines
 Weighting window: Hanning, Rectangular, Flat-top
 Averaging: Linear, Peak
 Number of averages: 1 to 4096
 Overlapping: 0%, 50 , 75%
Note: 100 line spectrum is performed with 0% and 200 line spectrum with 0% or 50%
 Zoom factor: x1, x2, x4, x8, ..., x128
 Zoom central frequency: Value in Hz (If Zoom factor  x1)
Tab “Trigger”:
 Triggering source: Free, Signal, Tachometer
For Tachometer source, triggering parameters are defined in the general configuration: see § 2.4.
For Signal source,
o Wired sensor: triggering is done on channel 2 if triaxial mode is used otherwise on channel 1
o Wireless sensor: triggering is done on sensor Z axis.