"The WM40 is a modular energy analyser for single-, dual- and triple-phase systems.
The system consists of a maximum of four components, the main unit for displaying measurements on an LCD display and managing 16 alarms and three accessory modules, one with digital or analogue outputs, one with analogue outputs, digital inputs and outputs or analogue inputs, and the other for communication.
Measures the main electrical variables and harmonic distortions of voltage and currentMeasures active and reactive energyMeasurement of operating hours under loadManage up to 16 alarmsManage up to eight digital outputs (via optional accessory modules)Manage up to six digital inputs (via optional accessory modules)Manage temperature, process signal, and actual neutral current (via optional accessory module)Manage up to four analogue outputs (via optional accessory modules)Manage process signal, temperature and actual neutral current inputs (via optional accessory module)Data can be transmitted to other systems (via optional accessory module)"