The Didactum appliances rely on the monitoring systems 1.5V SR44 battery. This battery is used for storing the time and date. In rare cases this battery needs to be changed once. Be sure to dispose of the old battery properly! 

This battery change is only possible when the power is off! 

If you have the SR44 battery, as well as the installation of the LR44 battery is possible. Note that the LR44 has a shorter period of time. It is recommended to only use name brand batteries!

IP-based monitoring devices 50/100 II/100 III/500 II/500 II DC/600/700:

The 2nd generation of Didactum`s remote monitoring units are equipped with a 3V CR2032 lithium cell battery.

Replace the fuse:

The Didactum appliance main fuse should only be replaced by a qualified technician. The power cable must be disconnected before it is replaced. The fuse may only be replaced by a fuse of the same type with the same current rating.

An override of the defective fuse is not permitted.

The Didactum monitoring systems 500/600 and the Didactum 8 Port IP Power switches are equipped at the input power cable (C14) with a fuse. The particular specification can be found in the technical data.