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7 System
Architecture
7.1 General
Features
7.1.1 X3M
Energy and Supply quality Analyzer
Very accurate and stable measurement system thanks to the digital signal elaboration;
Continuous sampling of the wave shape of voltages and currents;
Offset automatic compensation of the measurement chain;
Current inputs with automatic scale change;
True-RMS measurements (up to the 31
st
harmonic);
Class 1 on the Active Power in compliance with IEC EN 61036;
Neutral current calculation;
Working temperature -20/+60 °C.
Clock/calendar provide 15 years back up battery with management of standard/daylight saving
time (DST Daylight Saving Time) time zones
Insertion on electric single phase networks and on balanced symmetrical three phase 3 wire
networks
Software upgrade on line
Life
Timer;
Backlit 256 segments 63 x 65 mm LCD display with white electro-luminescent lamp;
Immediate measurement indication through bargraph;
Calibration verification LED through optical devices;
Easy to use, thanks to the 9 button keyboard with explicit function indication;
Insertion on electric 3 phase unbalanced 3 or 4 wire networks, single phase networks and on
balanced symmetrical three phase 3or 4 wire networks
To be used with low or high voltages (programmable relationship between VTs and CTs);
Extended range power supply (
85
÷
265 Vac
,
100
÷
374 Vdc
) separated by the measurement
inputs;
2 slots for optional expansion modules:
−
RS-232 o RS-485 Communication port;
−
4-20 mA Double analogue output;
−
Further devices for future applications;
Galvanic insulation among all input and output ports;
Firmware which can be upgraded to support new functions;
Din 96 x 96 mm panel mounting;
Easy connection thanks to plug in terminals (with safety screws);
Compliant with all the international standards.
Measurement of voltage and current total harmonic distortion;
Measurement of the total harmonic distortion (THD) of voltages and currents;
Average and peak powers (on 4 displays) with programmable integration time;
Internal energy counters (on 4 displays).
2 digital outputs (DIN 43864) with programmable functions:
−
Pulse outputs for energy counting;
−
Event signaling (alarms);
−
Remote control of external devices.
Data
Memory
−
Dimensions
2 Mbytes Flash disk.
2.088.960 bytes available memory.
Organized in 4096 allocation units from 510 bytes each.
As each file occupies at least an allocation unit a maximum of 4096 files can co-
exist on disk
−
Reading.
Disk Access via Modbus functions.
