User Manual
LoRaWAN
mME DTZ541 Three-phase electricity meter
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9 Operation of the counter with the key
DTZ541 has a physical button and, optionally, an optical button in the position of the INFO
interface. By entering a "short key press" and a "long key press (5s)" additional information is shown
in the second line of the display. The corresponding functions can be set here. The different key
commands are:
short key press (<2s)
repeated short keystrokes
long press (>5s)
The following explanation describes the operating processes of a complete counter. Some steps are
not possible with some meters due to different variants. For example, a reference meter does not
have historical values of "-A".
When the historical values are displayed, the scrolling mode is interrupted in the first line and the
corresponding OBIS code for the historical values is displayed. This enables the historical values to
be clearly assigned to the respective type of energy.
Operating status from the display
Displaytest
