User's Manual

57
Brand of ACOEM
3.7.5.4 Tab 2 for “Phased spectrum” measurement type:
Tab Phased 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: 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
Number of averages: 1 to 4096
Notes:
o Phased requires a trigger input used as phase reference
o Triggering parameters are defined in the general configuration: see § 2.4
3.7.5.5 Tabs 2 and 3 for “Time wave” measurement type:
Tab Time wave:
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
Sampling frequency: 204.8 kHz, 102.4 kHz, 51.2 kHz, 25.6 kHz, 12.8 kHz, 5.12 kHz, 2.56 kHz, 1.28 kHz,
512 Hz, 256 Hz
Number of samples: 256, 512, 1K, 2K, 4K, 8K, 16K, 32K, 64K.
With long time wave option: 128K, 256K, 512K, 1M, 2M and 4M
Limitations:
o If licence = Advanced: 8K max
o If Triggering source Free: 16K max
o Extended number of samples with long time wave option: up to 80 s split over the number of
channels or 4,096K samples. For more details see § 6.2.2
Averaging: Linear
Number of averages: 1 to 4096.
Average number is forced to 1 if Triggering source = Free
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.
Triggering level: Value in parameter unit
Used if Triggering source = Signal