Dell Latitude 7400 2-in-1 Service Manual page 113

Table 27. FoV states (continued)
Field name
Range distance
Lock timer
The lock timer is the approximate time for Dell Express Sign-in to identify that the user is no longer in front of the system or
within the FoV. This feature will recognize your physical absence and lock the system.
The lock timer values are 60 seconds (default), 90 seconds, and 120 seconds. If Away is set to OFF, the Lock timer option is
grayed out.
Supported hinge angles
The ExpressSign-in works as configured in a supported four hinge angles for a particular mode. The ExpressSign-in does not
change the existing state if you are within the sensor FoV for an unsupported hinge angle. Once the system is in the supported
hinge angle, the ExpressSign-in will start to change the state. The supported hinge angles are:
Table 28. Supported hinge angles
System with status
Clamshell
Stand
Tablet
Description
The proximity sensor should function satisfactorily in
detecting user presence / absence <100cm away
Supported hinge angle
60˚ to 150˚
210˚ to 300˚
Not supported
Illustration
System setup 113