User Manual

EMpro - multifunctional energy measuring devices for DIN rail mounting
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EMpro energy measuring devices have an integrated web server. It enables:
– Convenient configuration
– Data logging
– Mains quality evaluations
– Detailed recording of energy flows
A configurable digital input and a configurable digital output are also available.
Communication interfaces to higher-level control systems are integrated in the device,
depending on the type.
Currents can be measured with current transformers or Rogowski coils. If you use Rogowski
coils, you do not need an external measuring transducer. EMpro energy measuring devices
can be connected directly to Rogowski coils from any manufacturer. Different device types
are deployed depending on whether current transformers or Rogowski coils are used.
Voltages can be measured directly, or by means of voltage transducers.
Voltages and currents are measured using the principle of true r.m.s. value measurement
(TRMS) up to the 63rd harmonic, which enables detailed assessment of the mains quality.
When EMpro energy measuring devices with LC display are used, it is possible to locally
display measurement values and perform configuration tasks locally by means of buttons.
All EMpro energy measuring devices have a Modbus communication interface and an
integrated web server. Other communication interfaces are available, depending on the
type. Via the web server, all relevant measurement values and parameters can be displayed
and the energy measuring devices can be configured. On the web interface, settings can be
configured for the following, among others:
– Grid types
– Mean values
– Four energy meters for apparent power, active power, reactive power,
consumption/supply
– Energy tariff meter
– Logging
– Alarms and conduct in the event of alarms
– Network (TCP/IP)
– Interfaces with higher-level control systems
– Digital output (with logic functions)
– Digital input
– Pulse counter
– Date/time (realtime clock, SNTP compatible)
– Identifier (of metering point)
– Display