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Analysis: normal, synchronous
If Triggering source = Free, Analysis mode is forced to Normal.
For synchronous analysis, the spectrum line number is limited to 6400.
Triggering mode: 1st average only, Each average
For synchronous analysis, Triggering mode is forced to Each average
Triggering level: Value in parameter unit
Used if Triggering source = Signal
Triggering slope: + or -
Used if Triggering source = Signal
Hysteresis: Value in parameter unit
Used if Triggering source = Signal. It used to rearm the trigger system for the next acquisition and to avoid
wrong triggering.
Triggering delay: value in ms
Used if Triggering source ≠ Free
Input a negative value to have a pre-trigger.
Limitations are 32K samples for pre-trigger and 2M samples for post-trigger
3.7.5.3 Tab 2 for “Envelope” measurement type:
Tab “Envelope”:
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 input 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
Weighting window: Hanning, Rectangular, Flat-top
Averaging: Linear, Peak
Number of averages: 1 to 4096
Overlapping: 0 %, 50 %, 75 %
Band-pass filter width: Frequency input range divided by 2, 4, 8 … ,128
Band-pass filter central frequency: Value in Hz
Notes:
o Defined band-pass filter is applied on the signal before demodulation
o Band-pass filter limits must be between 0 and “Frequency input range”
o Max frequency of the resulting envelope spectrum is “Band-pass filter width”/2
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