INSTRUCTION MANUAL
IM443-U v0.7
ELM-4D1P
ELECTRICAL MULTIFUNCTION METER
GENERALITY
ELM-4D1P
instruction manual
IM443-U v0.7
pag. 1
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 one model for DIN rail mounting.
- ELM-4D1P-485A basic version in execution for DIN rail mounting 35
mm with serial output (RS485) and with analog output
OPTIONS
- Power Supply: 20÷60 Vac / 24÷72 Vcc (-C1)
- Power Supply: 85÷230 Vac / 90-250 Vcc (-C2)
- Insulated current inputs (-T)
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 m x
a
maximum phase currents
[A-kA]
A
L1 m x
A
L2 max
A
L3 max
a
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
m x (avg)
a
average phase currents
[A-kA]
A
L1 a g
A
L2 avg
A
L3 avg
v
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
