User Manual
Device description
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Other features of the EMpro energy measuring devices are:
– Firmware update function
– Password protection (local and web-based management (WBM))
– Deactivation of control buttons for configuration
– Sealable connection fields
– Export, import and direct transfer of configuration data
– Color changes on display (white, red) in the event of errors/events
The following measurement values/parameters are shown on the LC displays of EMpro en-
ergy measuring devices:
– Voltage U [V] (L-L, L-N)
– Current I [A]
– Frequency f [Hz]
– Active power P [W] (string, total)
– Reactive power Q [var] (string, total)
– Apparent power S [VA] (string, total)
– Power factor PF,
– Active power factor, active factor cos
– Phase shift angle, phase angle (U-U, U-I)
– Total harmonic distortion (ratio) of the voltage, THD U (L-L, L-N)
– Total harmonic distortion (ratio) of the current, THD I
– Energy E [Wh, varh, VAh] (consumption/supply)
– Energy tariff meter E [Wh, varh, VAh] (consumption, supply, meter 1-4)
For the measurement values/parameters voltage U (L-L), U (L-N), current I, frequency f, ac-
tive power P, reactive power Q and apparent power S, it is possible to switch between:
– Instantaneous = Instantaneous value
– Min = Minimum value (can be reset)
– Max = Maximum value (can be reset)
– AVG = Current average value
– AVG Min = Minimum average value (can be reset)
– AVG Max = Maximum average value (can be reset)
All the measures described above are also available via the web server that has been inte-
grated into the EMpro energy measuring device. In the web browser, the data cannot only
be displayed numerically, but also in the form of a convenient analog display with trend
charts.
A variety of hardware and software interfaces can be used to communicate with higher-level
control systems. At the time this document is written, the following interfaces are available:
– Modbus/RTU (RS-485)
– Modbus/TCP (Ethernet)
– PROFINET (Ethernet, Dual Port)
– EtherNet/IP (Ethernet, Dual Port)