TECHNICAL FEATURES
MEASURES, PRECISIONS
voltage
true RMS of the phase voltages and the phase to phase voltages and values of three phase system
range of total measure: 20÷500V trms phase-phase - 290V rms phase-neutral
visualization (0,02÷50,0kV) - measure precision: ±0,5% ±1 digit– management maximum values
current
true RMS of the phase currents and of the value of three phase system
range of measure: 0,02÷5A trms - measure precision: ±0,5% ±1 digit
visualization 0,02÷9990A
frequency
frequency of the L1 phase –range of measure: 40÷500Hz
precision: ±0,5% ±1 digit
powers
phase and three phase system apparent, reactive and active power
range of measure: 0,001÷9990kW - 0,001÷9990kVAr - 0,001÷9990kVA
precision: ±1% ±1 digit
power factor
phase and three phase power factor
range of measure: -0,1÷0,1 / precision: ±1% ±1 digit
energy measure
three phase system apparent, active and reactive energy
range of measure: 0÷99999999,9 kWh / kVArh
class 2 ( IEC 1036)
precision: ±1
hours counters
precision: ±1%; risolution 1/10 of hour
AUXILIARY POWER SUPPLY, INPUTS
auxiliary power
supply
Version Vac: 100-125V / 220-240V / 380-415V ±10% - frequency 50-60Hz
Version Vca/dc: 20-60Vac – 24-72Vdc
Version Vca/dc: 80-230Vac – 90-250Vdc
consumption max 4VA
voltage inputs
from 20 to 500V phase-phase; permanent ov20% - input impedance: 1 M
Ω
insertion on three phase line with 3 wires, 4 wires and single phase
insertion in MT with external TV and transforming rate programmable from 1 to 400
current inputs
from 0,02 to 5A; permanent overload 30% - from external TA with secondary 5A,
primary programmable from 5 to 10000A - auto-consumption <0,5VA
INPUTS / OUTPUTS
digital outputs
Two outputs with common, optomos 12÷230Vac/dc, max 150mA,
insulation: 3kV for 60 seconds
Pulse Function:
Weight programmable 0,01-0,1-1-10 kWh/pulse
Pulse duration 100-200-300 400 500 milliseconds selectable
DO1:
active energy pulse output (accumulated Tb1+Tb2)
DO2:
reactive energy pulse output (accumulated Tb1+Tb2)
analog output
Max load: 400
Ω
Range 0-20mA; 4-20mA
Insulation: 3kV for 60 Seconds
serial output
One optional output RS485, baud rate selectable, MODBUS-RTU protocol
insulation: 3kV for 60 seconds
GENERAL
display, operators
4 displays with red LED 10mm everyone of 3 digit by 7 segments
3 push-button for selecting measure and programming
mechanic
protection degree: IP52 frontal - IP20 enclosure and terminals - weight: about 0,5 kg
connections with screw terminals for cable 2,5 mm
2
enclosure thermoplastic self-extinguishing - for DIN rail mounting, 6 modules of 17,5mm
environmental
working temperature: -10÷60°C; humidity <90%
storing temperature: -25÷70°C
insulation test: 3 kV for 1 minute
standards
EN 50081-2; EN 61000-6-2
EN 61036-1; EN 61010-1
NOTE
At reason of the evolution of standards and products, the company reserves to modify in every time the features of the product described in this
document, that it’s necessary to verify preventively.
The liability of the producer for damage caused by defect of the product ”can be reduced or deleted (…) when the damage is caused joint by a
defect of product or for blame of the damaged or a person of which the damaged is responsible” (Article 8, 85/374/CEE).
Via Lago di Molveno, 20 – 36015 Schio (VI)
Tel. +39 0445 661722 –Fax +39 0445 661792
E-mail:
ELM-4D1P
instruction manual
IM443-U v0.7
pag. 16
