EMM-µD3h EMM-µD3h-p EMM-µD3h-485 instruction manual
IM380-U v3.1
pag. 12 / 12
TECHNICAL CHARACTERISTICS
MEASURES AND ACCURACY
Voltage
True rms value of the phases voltages and phase to phase in a three phase system
Total range of measure: 20÷500V trms phase to phase- 380V rms phase-neutral
– 40÷100Hz
Visualization (20,0÷500V) - measure accuracy: ±0,5% ±1 digit
– maximum values management
Current
True rms value of phase currents and three phase system value
Range of measure: 0,02÷5A trms digit
– 40÷100Hz
Visualization 0,02÷999A - accuracy: ±0,5% ±1- average and maximum values management
Frequency
Frequency of phase L1
– measuring range: 30÷500Hz
Accuracy: ±0,5% ±1 digit
Powers
Active, reactive and apparent powers of phase and three phase system
Range of measure: 0,01÷999kW - 0,01÷999kVAr - 0,01÷999kVA
Accuracy: ±1% ±1 digit - Maximum, average and instantaneous values management
Power factor
Phase and three phase power factor
Range of measure: -0,1÷0,1 / accuracy: ±1% ±1 digit - Maximum and average values management
Hour meter
Time metering in hours and decimal of hours
Range of measure 0,0 ÷ 99999.9 h / accuracy ±0,5%
Energy measures
Active, reactive and apparent energies of the three phase system
Range of measure: 0÷99999999,9 kWh / kVArh / kVAh class 1 (EN 62053-21) accuracy: ±1%
AUXILIARY POWER SUPPLY AND INPUTS
Auxiliary supply
Standard 230V ±15% - optional 110V or 400V ±15% - 50-60Hz - max 3VA
Voltage inputs
From 20 to 500V phase-phase; permanent ov20% - input impedance: 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
INPUTS / OUTPUTS
Digital outputs
(only for EMM-µD3h-p)
Digital output ON-OFF(opto-isolated), 5÷230V ac/dc, max 150mA - insulation: 3kV for 60 seconds
Proportional pulse emission to the active and reactive energy:
DO1: active energy pulse output
DO2: reactive energy pulse output
Programmable pulse weight 0,01-0,1-1-10 kWh/pulse, pulse duration 100÷500 msec, max frequency 5Hz
Alarm signalling function: Setting of measured parameter and time to trip delay 1 ÷ 900 sec
serial output
(only
for EMM-µD3h-485)
One output RS485, baud rate selectable, MODBUS-RTU protocol, baud rate 4800÷19200
insulation: 3kV for 60 seconds
GENERAL
Display, keys
3 display with red LED 7,5mm each of 3 digits 7 segments
2 keys for selecting measures and programming , LED bar 10 points
Mechanical
Protection degree: IP52 front - IP20 enclosure and terminals - weight: 0,3 kg approx.
Screw wiring terminal for maximum cross section cable of 4 mm
2
Self- extinguishing plastic enclosure
– for DIN rail mounting, 3 modules of 17,5mm
Environment
Working
temperature:-10÷60°C;
humidity<95%
-
Storing
temperature:-25÷70°C
-
Isolation
test:
3kV
for
1min.
Standards of reference
EN 61326-1; EN 55022; EN 61000-6-2; EN 61000-6-4; EN 61010-1; EN 62053-21
DIMENSIONS
9
0
modular version 35mm
DIN 50022
3 moduls 17,5 mm
52.5
60
55
44
4
5
L1
L2
L3
L
out
SET
electrical multi meter
EMM-µD3
max
avg
VL1
VL2
VL3
N
aux2 aux1
voltage inputs
V aux
S1
S1
S1
S2
S2
S2 Do2
c
Co
B
Do1
A
IL1
IL2
IL3
current inputs
