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EMM-µD3h  EMM-µD3h-p  EMM-µD3h-485  instruction manual 

IM380-U v3.1 

pag. 9 / 12

 

MEASURES VISUALISATION 

According with the glowing status of the 

G

 LED the reading of the measures is visualised on display 

C

either the three 

measures  of  the  phase  values  or  the  three  phase  measured  values

  (average  of  the  individual  phases  for  voltage, 

current, power factor and the sum of the individual phases for powers). 
With  the 

G

  LED  off,  the  instrument  will  visualise  the 

three  measures  of  phase

  (L1,  L2  and  L3  respectively)  of  the 

parameter  indicated  by  the  light  of  the  LED 

D

.  for  the  phase  to  phase  measures  (V 

L-L

),  the  three  measures  are 

understood V 

L1-L2

, V 

L2-L3

, V 

L3-L1 respectively

By pressing the 

B

 key, you may select the parameters to visualise, which will be indicated by the LED 

D

The visualisation of the frequency page shows also the status of the digital output (if present). 

 

By  pressing  the 

A

  key  with  the 

G

  LED  on,  the  instrument  will  visualise  the  selected  parameters  in 

three  phase  values

 

(average of the individual phases for voltage, current, power factor and the sum of the individual phases for powers). 
In this mode, each page will show the measures of 3 parameters, indicated by the LED 

D

, excluding the frequency pages, 

the energy meters and the hour meters. 
The visualising of the energy meters is only possible with the 

G

 LED on. 

If  the  hour  meter  is  available,  is  visualised:  as  hour  meter  per  phase,  activated  by  the  three  phase  current,  after  the 
visualisation of energies in those types fitted with energy meters. 
By pressing the same key again, the instrument returns to the visualisation of the phase parameters. 
Should the single phase system wiring been made, the visualisation of the values will be shown in the same way as per 
the  three  phase  measures,  indicating  three  parameters  on  each  page.  In  the  present  case  the  LED 

G

  will  never  glow, 

since it isn’t a three phase system. 

 

VISUALISATION OF ENERGY AND HOUR METERS 

The visualisation of the energy meters are shown with the lighting of the LED 

kW + …h

 indicating the active energy values 

(kWh), whilst the lighting of the LED 

kVAr + …h

 are indicating the reactive energy values (kVArh). 

The lighting of the 

LED h

 alone, identifies the reading of the hour meter. 

The  reading  of  the  meters  uses  the  9  digits  (maximum  reading  99999999.9)  of  the  display 

C

:  the  measure  comes 

visualised in such a way that, the display L1 will show the first 3 digits, the display L2 the second 3 digits and the display 
L3 the last 3. 
For example if: L1=000, L2=028, L3=53.2, the reading is equal to 00002853.2 kWh. 
In  the  case  of  the  hour  meter,  it  uses  only  6  digits  (maximum  reading  99999,9)  of  the  display 

C

:  the  measure  comes 

visualised in such a way that, the display L2  will show the first 3 digits,  and the display L3 the last 3 digits . 
For example if:  L2=008, L3=53.2 the reading is equal to 00853.2 h. 

 

NOTE ON THE VISUALISATION OF THE PARAMETERS 

The  visualisation  of  a  capacitive  power  factor  value  comes  represented  by  a 

  sign  before  the  first  digit  of  the  display 

(example of reading: 

 indicates a capacitive power factor of 

The  visualisation  of  a  negative  active  power  (inverted  connection  of  the  CT’s  or  cogeneration  presence)  comes 
represented by a 

 sign before the first digit of the display. 

 

VISUALIZATION OF THE PHASE VALUES

 (for three-phase connection) 

(connection mode set to 

 or 

L1

L2

L3

L

out

max

avg

SET

Visualization page 1

VL1-N  on L1 = 232 V
VL2-N  on L2 = 230 V
VL3-N  on L3 = 229 V

L1

L2

L3

L

out

max

avg

SET

Visualization page  2

IL1  

L1 = 28,2 A

IL2

on 

  on L2 = 9,2   A

IL3  on L3 = 35,7 A

L1

L2

L3

L

out

max

avg

SET

Visualization page  3

PL1  on L1 = 562  kW
PL2

 

  on L2 = 184  kW

PL3  on L3 = 99,2 kW

L1

L2

L3

L

out

max

avg

SET

Visualization page 5

QL1  

L1 = 562 kVAr

QL2

on 

  on L2 = 184 kVAr

QL3  on L3 = 99,2 kVAr

L1

L2

L3

L

out

max

avg

SET

Visualization page  6

SL1  

L1 = 562  kVA

SL2

on 

  on L2 = 184  kVA

SL3  on L3 = 99,2 kVA

L1

L2

L3

L

out

max

avg

SET

Visualization page  7

VL1-L2 = 401 V
VL2-L3 = 403 V
VL1-L3 = 399 V

L

out

max

avg

SET

L1

L2

L3

Visualization page  8

F on L1 = 49,9 Hz
Out = ON
Dig. Out = Alarm

 

L1

L2

L3

L

out

max

avg

SET

Visualization page  4

PF  on L1 = 0,93
PF

 

  on L2 = 0,92

PF  on L3 = 0,90

Summary of Contents for EMM-mD3h

Page 1: ...ard version 110V rated 50 60Hz optional version 400V rated 50 60Hz optional version INTRODUCTION The EMM D3h are only featured for local visualising the electrical parameters The EMM D3h p has two dig...

Page 2: ...he terminals aux1 and aux2 The rated supply voltages can be standard Vn 230V 15 50 60Hz under request Vn 110V 15 50 60Hz under request Vn 400V 15 50 60Hz measuring voltage inputs 4 terminals are avail...

Page 3: ...PHASE LINE WITH 3 OR 4 WIRES EMM LOAD aux1 aux2 auxiliary supply VL1 VL2 VL3 N measur ing voltage inputs EMM aux1 aux2 auxiliary supply VL1 VL2 VL3 N measuring voltage inputs EMM aux1 aux2 auxiliary s...

Page 4: ...r wiring the voltage measures input and auxiliary supply F Terminals for wiring the current measures input and the digital output when present in the instrument G LED for indicating of a three phase v...

Page 5: ...or EMM D3h p kWh kVAr pulse Set pulse weight kWh kVAr pulse kWh kVAr pulse kWh kVAr pulse only for EMM D3h p Increase from to mS in step by 100 mS Decrease only for EMM D3h 485 Increase Set address of...

Page 6: ...e connection It s possible to chose 3 wires or 4 wires With the 4 wires connection the neutral parameter are displayed and enabled to use for the digital outputs settings Programming of the synchronis...

Page 7: ...arm In mode the digital output DO1 will emit pulses proportional to the active energy counted while the digital output DO2 will emit pulses proportional to the reactive energy counted The proportional...

Page 8: ...B key pressed to decrease the values The range depends by the parameter and it is linked to the CT and VT ratios Pressing A key to confirm The threshold set is linked with CT and VT ratios for this re...

Page 9: ...the energy meters are shown with the lighting of the LED kW h indicating the active energy values kWh whilst the lighting of the LED kVAr h are indicating the reactive energy values kVArh The lightin...

Page 10: ...lti meter Visualization page 7 Three Phase Hour counter 520 2 h L1 L2 L3 L EMM D3 electrical multi meter VL N A kW kVAr kVA VL L h Hz out max avg SET P F Visualization page 1 VL1 N L1 on IL1 on L2 kWL...

Page 11: ...max V L3 N max phase current I L1 max I L2 max I L3 max average phase current maximum demand I L1 max avg I L2 max avg I L3 max avg three phase system powers W max VAr max VA max average three phase s...

Page 12: ...dance 1 M 3 4 and single phase wiring Current inputs From 0 02 to 5A permanent overload 50 from external CT s with secondary 5A optional 1A Primary programmable from 5 to 2000A self consumption 0 5VA...

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