User Manual

17
Smart Infrastructure
CE2N5324en
2019-06-27
Analog module
WZU-AM
Function description
The analog module (WZU-AM) converts the measured value from the meter to an analog
signal. Each module has 2 channels with functions that can be configured independently.
The service software configures the unit (selection of measured value and output range).
The output signal is refreshed at 4-second intervals.
NOTICE
The analog module can be plugged into either of the 2 slots and 2 modules can be used
concurrently.
Power supply
The module must be powered via an external power pack (e.g. WZU-NE24). The 2 cables of
the power pack are interchangeable. The 2 analog modules can be powered by the same
power pack.
The module(s) and the meter can be connected to the same power outlet if the meter is
mains-powered (AC/DC 24 V). In this case, the wires must be bridged on module WZU-AM;
the plug-in terminals on the meter’s power pack are not suited for that purpose.
If a meter is used with an analog module, a D-cell is required – if battery-powered.
External fuse
Each analog module requires its own external fuse.
RF modules, 868 MHz
WZU-RF/WZU-RF-EXT
Function description
The RF modules (WZU-RF and WZU-RF-EXT) enable the meter to communicate wirelessly
with a control unit at 868 MHz. They support data transmission conforming to OMS and
DSMR. The meter time can be set when operating in conformance with DSMR. The
maximum range is 400 meters.