EMM-4h
instruction manual
IM442-U v0.7
pag. 1
INSTRUCTION MANUAL
IM442-U v0.7
EMM-4h
ELECTRICAL MULTIFUNCTION METER
GENERALITY
These digital multimeters allow to monitor all the electrical parameters
present on a distribution line. The local display of 30 electrical parameters
is carried out by 4 display with red LED guaranteeing a good and
contemporary reading of more measures. A simple front panel completes
the intuitive selection of several electrical parameters, with a great quantity
of information. These instruments, over of the instantaneous measures,
display the maximum peak of the main parameters (maximum peak and
maximum demand). The presence of the serial port communication
EIA485 (option) allows the connection in network of more instruments to
realize centralized measure networks.
These multimeters replace in a unique device, all the functions of
voltmeters, ammeters, energy meters, cosphimeters, wattmeters,
varmeters, frequency meters permitting a great economic saving, a
reduction of dimension and the wiring energy and a simplification in the
purchase and management of the instruments because this is a model
usable at all of need of local measure in the electrical panel, machine, etc.
AVAILABLE MODELS
It’s available only a model for flush mounting for panel.
-EMM-4h
basic version in execution for flush mounting DIN 96x96mm
ACCESSORIES AND OPTIONS
accessories
: frontal protection transparent cover
options
:
analog output (alternative to digital input option)
digital
output
serial output RS485
insulated current inputs
neutral current input
digital input (alternative to analog Output option)
MEASURED PARAMETERS
parameters
unit of measurement
initial identification
phase and three phase voltages
[V-kV]
V
L1-N
V
L2-N
V
L3-N
Σ
V
L-N
phase to phase and three phase system voltages
[V-kV]
V
L1-L2
V
L2-L3
V
L3-L1
Σ
V
L-L
phase and three phase currents
[A-kA]
A
L1
A
L2
A
L3
Σ
A
neutral current
[A-kA]
A
n
phase and three phase power factors
PF
L1
PF
L2
PF
L3
Σ
PF
phase and three phase active powers
[W-kW-MW]
W
L1
W
L2
W
L3
Σ
W
phase and three phase system reactive powers
[VAr-kVAr-MVAr]
VAr
L1
VAr
L2
VAr
L3
Σ
VAr
phase and three-phase system apparent powers
[VA-kVA-MVA]
VA
L1
VA
L2
VA
L3
Σ
VA
frequency [Hz]
Hz
L1
temperature [°C]
T
three phase system active energy
[kWh]
Σ
kWh
three phase system reactive energy
[kVArh]
Σ
kVArh
three phase system apparent energy
[kVAh]
Σ
kVAh
hour counter
[hr]
h
average and peak values (maximums):
maximum phase voltages
[V-kV]
V
L1-N max
V
L2-N max
V
L3-N max
maximum phase currents
[A-kA]
A
L1
max
A
L2 max
A
L3 max
maximum neutral current
[A-kA]
A
n max
maximum three-phase powers
[W-VAr-VA (k-M)]
Σ
W
max
Σ
VAr
max
Σ
VA
max
maximum average phase currents (maximum demand)
[A-kA]
I
L1 max (avg)
I
L2 max (avg)
I
L3 max (avg)
maximum average neutral current (maximum demand)
[A-kA]
A
n max (avg)
maximum average three-phase powers (maximum demand)
[W-VAr-VA (k-M)]
Σ
W
max (avg)
Σ
VAr
max (avg)
Σ
VA
max (avg)
average phase currents
[A-kA]
A
L1
avg
A
L2 avg
A
L3 avg
average neutral current
[A-kA]
A
n avg
average three-phase powers
[W-VAr-VA (k-M)]
Σ
W
avg
Σ
VAr
avg
Σ
VA
avg
