Bimba IntelliSens - Manual (Page 30)

IntelliSense ® Manual
30
Event detection parameters define how often an estimate for the remaining cylinder life is made based on the ob-
served change in cylinder performance. The following criteria can be entered:
Cycle count limit: Number of cycles that define the life of the cylinder without taking into account any ob-
served drop in performance. This can be entered for an existing application where the
typical life of the cylinder and the average number of daily cycles are both known. Use the
following formula to calculate the number of cycles:
Cycle count limit = M x W x 30 ÷ 7
Where, M = number of months between cylinder change
W = number of cycles cylinder is run per week
Sampling Window: This is the sensitivity of detection for leakage and stroke time, and defines how long a
detected change in performance has to be maintained for it to be recognized. Start with
the default value and if too many system snapshots are being taken, particularly ones that
alternate, showing an increase and decrease in cylinder life, this value should be increased
to reduce the sensitivity to transient changes.
System Snapshots: A system snapshot is taken every time a change is detected between the current system
and the previous system snapshot. The size of the change to be detected is defined in the
Trigger Event section.
Trigger Event: Select the cylinder performance that you would like to monitor for a change. The events that
can be monitored for are:
Change in stroke time
Change in cylinder leakage
Change in cycles completed
To activate the trigger, select the check box beside it and enter the quantity that defines a
change that will trigger a snapshot to be taken. When a change in the monitored param-
eters occurs that is equal to or greater than the entered change amounts, a snapshot is
taken.
The SIM monitors the given parameters and tracks the rate of change.
Status Light Activation Threshold
Enter for the percentage of estimated life that the amber (status 2) and red (status 3) warning lights on the SIM and
on the software status screen will correspond to.
The estimate for remaining life on cylinder performance is the estimated time for the cylinder performance to reach
either the high or low limits for cylinder leakage and stroke time, or the user entered cycle count limit entered in the
Alert and Event Detections section.
Figure 24: Status light activation threshold settings