EMU Professional II 3/5 Modbus

The 3-phase power meter EMU Professional II 3/5 Modbus for DIN rail mounting features a built-in RS485 Modbus RTU interface and is suitable for energy management as per ISO 50001 and energy cost billing.

Features

• Bidirectional three-phase power meter with RS 485 interface interface
• RS 485 Modbus RTU
• 3x230/400V
• Indirect using /5A and /1A current transformers
• Current transformer ratio configurable several times using the service key
• MID B+D, for billing purposes
• Accuracy class B (1%)

RS485 Modbus RTU interface

The built-in RS 485 Modbus RTU interface is protected against dirt and manipulation. 

Modbus power meter readings

• Active energy consumption (kWh) and supply (kWh)
• Reactive energy consumption (kWh) and supply (kWh)
• Active power (kw) 
• Reactive power (kvar) 
• Apparent power (kVA)
• Current (A)
• Frequency (Hz)
• Number of voltage failures
• Current transformer ratio

LCD-Display

Reading and setting parameters is user-friendly by a 38x28 mm graphic LCD display with LED backlight. This provides excellent visibility of numbers and letters.
Display language e.g. english or german can be selected by the keys.

Power meter configuration

Touch-sensitive control buttons are used for configuration. A sealable service button must be pressed for each configuration change.
The current transformer ratio (1 or 5 A transformer, up for up to 20000/5 or 4000/1 A) can be configurable several times.
The control keys are used to configure the RS485 Modbs address and the baud rate.

• Modbus baud rate: Via keys or Modbus
• Modbus primary address: Via keys or Modbus
• Modbus address: Via keys or Modbus

S0 pulse output

The 3-phase indirect power meter EMU Professional II 3/5 Modbus features a configurable S0 pulse output for active or reactive energy 

• Pulse rate per kWh / kvarH: 1,10,100, 1000 or 10000
• Pulse length in milliseconds: 2ms, 10ms, 30ms, 40ms, 120 ms

Modbus power meter configuration ex factory

• Modbus address: 000
• S0 pulse output: 10 Impulse/ 20 ms

Modbus Power meter manufacturer

The 3-phase modbus power meter meter is produced in Switzerland by EMU Electronic Ltd.
More information: https://www.emuag.ch