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

IM380-U v3.1 

pag. 1 / 12

 

INSTRUCTION MANUAL 

IM380-U v3.1

 

 

EMM-µD3h

 

DIGITAL MULTIFUNCTION METER FOR ELECTRICAL PARAMETERS 

EMM-µD3h-p

 

EMM-µD3h-485

 

 

GENERAL 

The

 

digital

 

multimeters

 

series

 

EMM-µD3h

 

allow

 

monitoring

 

the

 

main

 

electrical

 

parameters

 

present

 

on

 

a

 

distribution

 

line.

 

The

 

local

 

display

 

of

 

the

 

various

 

electrical

 

parameters

 

is

 

carried

 

out

 

by

 

3

 

displays

 

with

 

red

 

LED,

 

granting

 

a

 

good

 

and

 

simultaneous

 

reading

 

of

 

various

 

values.

 

A

 

simple

 

front

 

panel

 

completes

 

the

 

intuitive

 

selection

 

of

 

several

 

electrical

 

parameters,

 

in

 

order

 

to

 

provide

 

full

 

information.On

 

top

 

of

 

the

 

instantaneous

 

measures,

 

these

 

instruments

 

display

 

the

 

maximums

 

(peak

 

of

 

the

 

main

 

parameters

 

and

 

maximum

 

demand

 

or

 

average

 

maximum

 

value).The

 

multifunction

 

meters

 

EMM-µD3h

 

replace

 

in

 

a

 

unique

 

device,

 

all

 

the

 

functions

 

of

 

voltmeters,

 

ammeters,

 

energy

 

meters,

 

cosphimeters,

 

wattmeter’s,

 

varmeters,

 

hour

 

meters

 

and

 

frequency

 

meters.

 

This

 

gives

 

a

 

great

 

economic

 

saving,

 

by

 

reducing

 

space

 

and

 

time,

 

optimising

 

also

 

the

 

purchase

 

management

 

of

 

instruments,

 

since

 

one

 

model

 

meets

 

most

 

demanding

 

requirements

 

for

 

local

 

measuring

 

in

 

electrical

 

boards,

 

switch-boards,

 

MCC’s,

 

Gen-sets,

 

etc. 

 

AVAILABLE TYPES 

Among the large range of the 

EMM

 multimeters family, find here below the available 

EMM-µD3h

 types: 

EMM-µD3h 

based version. 

EMM-µD3h-p 

as 

EMM-µD3h

 version but with digital outputs for pulse emission or alarm signalling.

 

EMM-µD3h-485 

as 

EMM-µD3h

 version but with RS485 port.

 

 

The auxiliary supply for all types, is available with following voltages: 

-  230V (rated) 50-60Hz 

standard version 

-  110V (rated) 50-60Hz 

optional version 

-  400V (rated) 50-60Hz 

optional version 

 

INTRODUCTION 

The 

EMM-µD3h

 are only featured for local visualising the electrical parameters. The 

EMM-µD3h-p

 has two digital outputs. 

The 

EMM-µD3h-485

 has a RS485 port. The auxiliary supply is connected to 2 terminals, separated from the measuring 

voltage inputs. It is necessary to use of external CT’s for measuring the currents. 

 

ACCESSORIES AND OPTIONS 

Accessories

Din rail mounting CT’s 

Options

Auxiliary supply and measuring voltages, other than standard (under request) 

 

Current Input 1A 

 

Others CT secondary input (on request) 

 

MEASURED PARAMETERS 

Parameters 

Measuring units 

Identification symbols 

phase and three phase voltage 

[V] 

V L1-N 

V L2-N 

V L3-N 

 V L-N 

phase to phase and three phase system voltages 

[V] 

V L1-L2 

V L2-L3 

V L3-L1 

 V L-L 

phase and three phase currents 

[A] 

I L1 

I L2 

I L3 

 I 

phase and three phase power factors 

 

PF L1 

PF L2 

PF L3 



PF 

phase and three phase active powers 

[kW] 

W L1 

W L2 

W L3 



phase and three phase system reactive powers 

[kVAr] 

VAr L1 

VAr L2 

VAr L3 



VAr 

phase and three-phase system apparent powers 

[kVA] 

VA L1 

VA L2 

VA L3 



VA 

three phase average powers 

[kW-kVAr-kVA] 

 W (avg) 

 VAr (avg) 

 VA (avg) 

 

three phase forecasted average powers 

[kW-kVAr-kVA] 

 W pr (avg) 

 VAr pr (avg) 

 VA pr (avg)   

frequency  

[Hz] 

Hz L1 

 

 

 

three phase active energy 

[kWh] 

 kWh 

 

 

 

three phase reactive energy 

[kVArh] 

 kVArh 

 

 

 

three phase apparent energy 

[kVAh] 

 kVAh 

 

 

 

hour meter 

[h] 

 

 

 

peak value (maximums): 

 

 

phase voltage 

[V] 

V L1-N max 

V L2-N max 

V L3-N max 

phase current 

[A] 

I L1 max 

I L2 max 

I L3 max 

phase average current (maximum demand) 

[A] 

I L1 max (avg) 

I L2 max (avg) 

I L3 max (avg) 

three phase system powers  

[kW-kVAr-kVA] 

 W max 

 VAr max 

 VA max 

three phase system average power (max demand) 

[kW-kVAr-kVA] 

 W max (avg) 

 VAr max (avg) 

 VA max (avg) 

Содержание EMM-mD3h

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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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