Do you have a question about the Theben TR 644 S and is the answer not in the manual?
Essential safety guidelines for electrical equipment installation and operation.
Guidance on properly mounting and setting up the time switch.
Details on wiring and connecting the device to the power supply.
Specifications, ratings, and technical parameters of the time switch.
How to input and correct data values during setup.
Guide to configuring the current date and time settings.
How the device synchronizes with DCF 77 radio signals.
Instructions for connecting and positioning the radio antenna.
Steps for the first-time automatic setup of the radio time sync.
Manually forcing the device to stay switched ON.
Manually forcing the device to stay switched OFF.
Setting ON times for daily/weekly schedules.
Programming switching times based on specific dates.
Programming weekly schedules with assigned priority levels (P1-P9).