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Home > Product Listing > EMM5 3 Phase Mounted Multimeter

3 phase Panel mounting meter 144 X 144 Facia – with modbus or pulse output ., With programmable exit switching relays

BPC EMM5 Front Panel

Measurement Functions of the 3 phase instrument EMM5

Measurement Functions Range Accuracy
Voltage, instantaneous +Max/Min L-N 55-318V +/-0.5%
Voltage , instantaneous + Max/Min L-L 95-550V +/-0.5%
Current Input 5 amps, programmed according to CT ratio L1/L2/L3/N Instantaneous 0-5 amps input +/-0.5%
Current Input 5 amps, programmed according to CT ratio L1/L2/L3/N Max Instantaneous 0-5 amps input +/-0.5%
Current Input 5 amps, programmed according to CT ratio L1/L2/L3/N Average Value
over 8-15-30 minutes
0-5 amps input +/-0.5%
Current Input 5 amps, programmed according to CT ratio L1/L2/L3/N Peak Average Value (Max. Demand) over 8-15-30 minutes 0-5 amps input +/-0.5%
Frequency Instantaneous/Max/Min 45-65 Hz +/- 1.0%
Power Factor Cos phi L1-N/L2-N/L3-N Instantaneous and Max/Min all values +/- 1.0%
Power Factor l L1/L2/L3 instantaneous and Max/Min all values +/-1.0%
Power Factor l 3 phase average instantaneous and Max/Min all values +/- 1.0%
kVA L1-N/L2-N/L3-N Instantaneous and Max 0-25,000 MVA +/-1.0%
kVA 3 phase total kVA Instantaneous and Max 0-75,000 MVA +/-1.0%
kW L1-N/L2-N/L3-N Instantaneous and Max 0-25,000 MW +/- 1.0%
kW 3 phase kW Instantaneous and Max 0-75,000 MW +/-1.0%
kW L1-N/L2-N/L3-N plus 3 phase kW Instantaneous and peak demand over 8-15-30 minutes 1 ph = 0-25,000 MW
3 ph = 0-75,000 MW
+/- 1.0%
kVAr L1-N/L2-N/L3-N plus 3 phase total instantaneous and Max kVAr 1 ph = 0-25,000 MVAR
3ph = 0-75,000MVAR
+/-1.0%
KWH 3 Phase total 9999 gWh +/-1.0%
KVARH 3 Phase total 9999 gkVArh +/-1.0%
THD Voltage Instantaneous and Max 0-100% +/-1.0%
THD Current Instantaneous and Max 0-100% +/-1.0%
Harmonic Voltage 2nd ... 63rd Instantaneous and Max 0-100% +/-1.0%
Harmonic Current 2nd ... 63rd Instantaneous and Max 0-100% +/-1.0%

Outputs and Optional Extras

Current Path 1 Amp or 5 Amp please state 1A or 5A current input on order
Neutral current measured or calculated fitted as standard
6 x normally open (N/O) common point contacts fitted as standard - can be programmed
2 x three way contacts (N/O - N/C) fitted as standard - can be programmed
Temperature sensor for ambient air temp fitted as standard - can be programmed
Datalogger and Event Recorder Media Card available on request at extra cost
2 x programmable 4-20mA outputs available on request at extra cost
RS232 or RS485 interface available on request at extra cost
Infra Red Interface available on request at extra cost
PROFIBUS & MODBUS available on request at extra cost
Various Languages for the menu details on request
BPC EMM5 Wiring Diagram - back view

Technical Data

Aux Supply-voltage to power the EMM5 108-253V, 45-65Hz., max. fuse gL6A
Measurement-voltage: 95 - 550V (phase - phase) 55-318V (phase-N) PT Ratio 1 ... 300
Current Coil Input and Burden 0-5A input. Burden 0.5VA. CT ratio programmable
1...4000. Max CT ratio = 20,000/5
Max Continuous over current + 20% = 6A
Exit relays available. 2 x change over ( N/C+N/O) or 2 x volt free
Must be protected with gL 6A fuse. Switch rating
250v 50/60hz = 3 A., or 30V DC max 3A
Temperature measurement switch Sensor inside the EMM5 ,can be programmed to
switch exit relay
Interface Standard Interface is Modbus . Other available.
If Modbus module needed order EMM54MB
Operating temp 0-70 deg.C
Storage Temp -20+60 deg.C
Humidity: 0-95% without dewpoint condensation
Standards Complied With VDE 0110 Part 1/IEC60664-1.,
VDE 0411 Part 1(EN61010-1)- IEC 61010-1- 2001.
VDE 0843 Part 20., (DIN – EN 61326 – 1997)
+A1- 1996 ., +A2-2000
Conformity and Approvals gained CE and UL approved ( CUL Caracel approved)
Terminal Connections Max 2.5 sqmm – spring clamp connectors
IP Rating Front : IP60 – optional extra lockable cover to IP 64 Back: IP20
Weight – approx 0.65kg
Dimensions: 144 x144 x56 ( deep) mm
Panel size cut-out 138+0.5mm x 138 +0.5mm

In order to datalog the recorded data the EMM54MB is necessary. The details below indicate how this is connected and the information you can obtain. (Emm5 Modbus setup and Protocol details)

Using the EMM54MB to give recorded data

DATA COMMUNICATION BY COMPANY PC NETWORK,

INTERNET OR GPRS

Using the MINISCADA

At each point of measurement you connect a power analyser meter which we call a slave.

Each Modbus Slave has its own address number and sends its information back to the MINISCADA via RS485 Modbus signal. All the modbus slaves must be connected to the same RS485 cable ., ( Belden or equal screened cable). Remember each power analyser will need 3 x CT’s for a three phase system. The MINISCADA1 has to be within 10 mtrs of the company pc network – or internet connection as in the sketch below.

Miniscada network connections diagram

The slaves must all have Modbus communication cards.

You can have up to 25 slaves on one Miniscada.

Each slave has a different address number.

The Miniscada needs a 12v dc power supply and is DIN rail mounted.

The slave we recommend for the main switchboard is the EMM54MB

Which is mounted on the main switchboard incomer. It reads every electrical parameter including harmonic voltage and currents up to the 61st order. The instrument has 144 x 144mm facia.

The Modbus cable connection in Belden Screened cable can run up to about 1200 mtrs to the MINISCADA.

The other instruments are all connected on to the same cable in parallel connection – or Daisy Chained

BPC EMM5 front view

For the smaller sub-circuits we recommend the UMG97 ., with a 96 x 96 facia

BPC UMG97 Front View

This meter has a plug in Modbus Module on the back and the cable is taken into the MINISCADA. The Belden screened cable ( or equivalent ) is daisy chained and fed into the MINISCADA.

All the recorded information can be datalogged on the MINISCADA. When the flash memory is full it is either buffer ringed ( oldest data written over ) or down loaded to a network address or an email address in the case of.

The measurements can be emailed to any address as an xl file – as the example below :

BPC EMM5 Example Graphs

The XL file can be shown as a bargraph or the format you prefer.

For more Information contact your local supplier or Boddingtons Power Controls :

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