PowerFleet
®
VAC4 and VAC4S Hardware User’s Guide
085-00000700 Rev K
Page 25 of 103
are classified as Abnormal and recorded in five Severity Levels (Low, Moderate, Medium, High, and Severe). Each
Severity Level is defined by its relative order of magnitude above the baseline MIL of 1.0.
The initial MIL is often determined within an hour of driving a vehicle. The continuous auto-adjustments to the MIL
Threshold take place virtually instantan
eously, so the system adapts very quickly to changes in a vehicle’s operating
environment and driver’s behavior.
No operator effort is required to configure the MIL and have the impact sensor begin functioning properly.
The
third step
is fine tuning the preconfigured severity levels based on your site’s impact behavior goals.
The default impact Severity Levels are:
Low
< 1.6
Moderate
1.6 to < 2.1
Medium
2.1 to < 5.1
High
5.1 to < 8.1
Severe
≥
8.1
Certain software roles allow you to change the default. The default system reactions to impacts are:
Impact Level
Description
Low Impact and
Moderate Impacts
The VAC will store and report event details about without taking any on-vehicle actions.
Medium Impact
The VAC will flash an LED and prompt the operator to complete a self-inspection
checklist to identify injuries or damage.
High Impact and
Severe Impact
The VAC will lock out the vehicle (after a warning and grace period to bring the vehicle to
a stop) and require a Master or Maintenance operator to log in and complete a
supervisor checklist to release the vehicle.
The system defaults to recommended settings for impact severities. However, to provide end users flexibility of use,
each Impact Severity Level can be adjusted in the PowerFleet Vision Pro software.
Select the Edit icon (the Edit button in the bottom of the screen)
Impact Severity Levels may need to be manually adjusted if, for example, a vehicle is experiencing many Medium
impacts, but operators are not reporting any damage on the self-inspection checklists triggered by those impacts. In this
example, one might want to increase the Medium slider setting from 2.1 to 3.0 or 3.5. An impact would then have to be
harsher to qualify as Medium. This would result in fewer Medium impacts, but a greater proportion of the Medium
impacts would result in damage that would be reported on the Medium impact checklists.