Samson 5827 Mounting And Operating Instructions page 83

Annex A (configuration instructions)
Start zero calibration
The actuator moves to the lower end position (stem extended). After the zero calibration is
completed, the transit time is adopted and the actuator is ready for operation. The actuator
stem is moved to the position determined by the input signal.
Start transit time measurement
Measures the time required to move from one end position to the other.
EB 5827-2 EN 16-9