P21A030M EMU Professional II 3/5 M-Bus LP

Product information: EMU Professional II 3/5 M-Bus LP P21A030M

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

The EMU Professional II 3/5 M-Bus LP features a logbook for events and configuration changes (eg. CT ratio) related to MID / PTB regulations. Built-in load profile memory with a memory depth of over 3 years at a 15-minute interval. Historical data can be exported via M-Bus using e.g. the EMU M-Bus Center.

Features:

• Bidirectional three-phase power meter with M-Bus interface
• wired M-Bus interface
• Logbook for events and configuration changes
• Logging of different measurement values and export via M-Bus
• Memory depth of over 3 years at a 15-minute interval
• Buffered clock with synchronisation via M-Bus
• 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%)

M-Bus interface:

The built-in M-Bus interface is protected against dirt and manipulation and is designed according to EN13757-2, -3 (previously EN1434-3).

The power meter EMU Professional II 3/5 M-Bus LP communicates via M-Bus at 300, 600, 1,200, 2,400, 4,800 and 9,600 baud. 

The M-Bus load of the EMU Professional II 3/5 M-Bus LP is only 1.5 mA, which corresponds to a standard load.

M-Bus connection: The EMU Professional 3/5 M-Bus LP 2x2 M-Bus connection terminals for easy M-Bus looping.

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 M-Bus primary and secondary address, and the baud rate.

• M-Bus baud rate: Via keys or free EMU MB-Connect software
• M-Bus primary address: Via keys or free EMU MB-Connect software
• M-Bus secondary address: Via keys or free EMU MB-Connect software

S0 pulse output:

The 3-phase indirect power meter EMU Professional II 3/5 M-Bus LP 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

Power meter configuration ex factory:

• M-Bus secondary address: serial number, e.g. 23521234
• M-Bus primary address: 000
• M-Bus baud rate: 2400
• S0 pulse output: 10 Impulse/ 20 ms

Power meter manufacturer

The 3-phase indirect M-Bus power meter meter is produced in Switzerland by EMU Electronic Ltd.

Approval: PTB-A 50.7, MID B+D

Connection:3ph. CT 5A and 1A

Interface: M-Bus