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)