FLUX FMJ 100 Betriebsanleitung Seite 38

5 Change of FLUXTRONIC, panel or seal
Unscrew the four Torx screws
(Torque max. 1.3 Nm)
Pull the plug of the reed sensor out of the electronic unit
Open the battery compartment using an appropriate tool.
No data is lost when the battery is changed.
Lithium round cell battery CR 2032
38 / 60 Attachment FLUXTRONIC FMJ 100