User's Manual

58
Brand of ACOEM
 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
3.7.5.6 Tabs 2 and 3 for “Overall” measurement type:
Tab “Overall”:
 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
 Low-pass filter*: 300 Hz (18 kCPM), 1 kHz (60 kCPM), 2 kHz (120 kCPM), 3kHz (180 kCPM),
20 kHz (1200 kCPM), 40 kHz (2400 kCPM)
 Detection*: RMS, true or equivalent peak, true or equivalent peak-to-peak
 Peak hold: Yes or No
Not displayed for input = Keyboard
 Measurement time (s): 1 to 20
Not displayed for input = Keyboard
* Not displayed for input = DC, Tachometer or Keyboard
Tab “Alarm”:
 Alarm type: defines the type of alarm applied on the parameter
o None
o High: Alarm Danger .
o Low : Danger- Alarm- .
o Out window: Danger- Alarm- Alarm Danger .
o In window: Alarm- Danger- Danger Alarm .
 Thresholds: values are given in parameter unit.
Note: values are tested to be decreasing from the top to the bottom of the screen. As example, for “High”
alarm type, Danger threshold ≥ Alarm threshold is correct.