EMM-D4h
instruction manual
IM443-U v0.7
pag. 4
P1
P2
S1
S2
N
L1
S2
S2
S2
S1
S1
S1
I1
I2
I3
V
L1
V
L2
V
L3
N
0
11
0
23
0
40
0
N.B. it’s better, where possible, to use 3 CT (above all with unbalance loads)
N.B. If the multimeters are used on single phase line, the measure are
referred on the L1 phase. The others datadisplayed relatives at three
phase system are not to consider.
INSERTION ON THREE PHASE LINE WITH 3 WIRES AND 2 CT
(AARON insertion)
(only for INSULATED CURRENT INPUTS option)
P1
P1
P2
S1
S1
S2
L1
L2
L3
S2
S2
S2
S1
S1
S1
I1
I2
I3
V
L1
V
L2
V
L3
N
0
11
0
23
0
40
0
EMM
INSERTION ON SINGLE PHASE
P1
S1
N
L1
L2
L3
S2
S2
S2
S1
S1
S1
I1
I2
I3
V
L1
V
L2
V
L3
N
m
e
as
ur
e c
u
rr
e
n
t
in
p
u
ts
m
e
as
ur
e v
o
lt
a
g
e
i
n
p
u
ts
0
11
0
23
0
400
auxiliary power
supply
INSERTION ON THREE-PHASE BALANCED WITH 3 OR 4 WIRES
EMM
EMM
m
e
as
ur
e c
u
rr
e
n
t
in
p
u
ts
m
e
a
s
ur
e v
o
lt
a
g
e
i
n
pu
ts
auxiliary power
supply
m
e
as
ur
e c
u
rr
e
n
t i
n
p
u
ts
m
e
as
ur
e v
o
lt
a
g
e
i
n
p
u
ts
auxiliary power
supply
P1
P1
P1
P2
S1
S1
S1
S2
N
L1
L2
L3
S2
S2
S2
S1
S1
S1
I1
I2
I3
V
L1
V
L2
V
L3
N
m
e
as
ur
e c
u
rr
e
n
t i
n
p
u
ts
m
e
as
u
re
v
o
lt
ag
e
in
p
u
ts
0
11
0
23
0
40
0
auxiliary power
supply
N.B. on line with 3 wires (without neutral or with neutral not supplied) the N
terminaln must not be connected.
INSERTION ON THREE-PHASE LINE WITH 4 WIRES
EMM
im
ea
s
u
re
v
o
lt
ag
e
i
n
pu
ts
Voltage insertion with 3 VT
N
L1
L2
L3
V
L1
V
L2
V
L3
N
P1
P2
S1
S2
S2
S1
In
EMM with
internalCT
with Ineutral
option
CT connection to
read the neutral
current
Digital Outputs:
DO1 output if used as PULSE is linked to the
ACTIVE ENERGY counter,
DO2 output if used as PULSE is linked to the
REACTIVE ENERGY counter.
DO1 and DO2 can be used as ALARM and they
can be linked to a measure.
EMM
D
igi
ta
l O
u
tp
ut
s
Max 150mA
Max 230Vac/dc
From 80 to 250 Vac
From 90 to 250 Vdc
Digital Input connection
it’s better to put a fuse (50mA 250 V fast)
on the digital input.
The maximum current absorbed is 1 mA.
N.B. on line with 3 wires (without neutral or with neutral not supplied) the N
terminaln must not be connected.
