Engineered and manufactured in Italy Pensato. progettato e prodotto in Italia the energy saving technology Exa MID is the new energy analyzer suitable for harsh environments in LV systems, three phases 3 or 4 wires. Complies with EN 50470-1 + EN 50470-3 standards, with MID conformity assessment procedure modules B and F and the 2004/22/CE directives. Accuracy: Class 1 according to EN 62053-21, Class B according to EN 50470-3. Equipped with an extremely versatile and precise microprocessor, RS485 Modbus port, digital inputs and outputs. Counts also the operating time of the load monitored. True-RMS and measurement accuracy_ The measures, in TrueRMS, obtained by continuously sampling the waveforms of voltages and currents, the automatic offset compensation of the internal amplifiers and of the angle error of the internal current transformers, ensure the maximum precision regardless the load variability in time (e.g. spot welding), the signal level and the environmental conditions of exercise. The resolution of 64 bits ensures also a high accuracy of the energy measurement even in the presence of small loads (e.g. equipment in stand-by). Exa MID is equipped with an LCD graphic display (dot matrix) with LED backlighting and 2 levels of contrast. Simultaneous reading of 4 parameters and of their symbols with high visibility mode. The 6-key Joystick keypad and the menu column on the display for configuring provide a simple and rational instrument use. In addition the initial page displayed when the instrument is turned on can be defined by the user. On the front panel two red LEDs, for calibration checking, pulse with a frequency proportional to the active and reactive energy imported. Under the sine wave symbol next to the Electrex logo S a red LED indicates the operation status, while 2 other LEDs (one red and one green) below the white band indicate the communication activities of the RS485 port. Exa MID is equipped with sealable terminals block and RS485 port. Suitable for use on any type of grid, 3 or 4 wire, symmetrical or asymmetrical, balanced or unbalanced, two-phase, single-phase, low and medium voltage, with 1, 2 or 3 CTs as well as for measurements on 2/4 quadrant (import / export). Insulated current inputs. When a protection jumper is inserted it is possible to configure the device via keyboard or RS485 port. The configuration includes the setting of all operating parameters such as RS485 port, network type, LV / MV, CT and eventual VT ratio (free setting), integration time (1-60 min.) and depending on the version: analog outputs, digital outputs, relay and alarm outputs (thresholds, delay and hysteresis), analog and digital inputs. The programming system is password protected against unwanted changes. Without the jumper (to be removed before sealing) the MID settings cannot be modified via keyboard or RS485 port. While it is possible to reset the partial lifetime counters, MD registered values and the management of inputs and outputs. Parameters Type L1L2 L3 n I P Range All the Instantaneous measures are calculated on 10 cycles, example: 200mS at 50Hz. 1) Average value (rolling average) over the integration time (1.. 60 min. programmable) and 2) Import /Export mean value (rolling average) over the integration time (1.. 60 min. programmable) and peak (MD) that is, the maximum average value. 3) Max. power values for both Import and Export. 4) Life Time counter not resettable; 3 partial operation time counters. 5) Energy counters on the terminals side (MID), total and per each phase, for both import and export not resettable and the partial resettable counters are displayed as 9 digits (1 decimal). The internal counters are logged with a 64 bit resolution which assures a minimum definition of 0,1 Wh and a max count of 100 GWh. 6) The energy counters (considering the CT ratio) for both import and export are displayed as 9 digits (1 decimal) and the internal counters are logged as in point 5).

Energy Analyzer compliant with EN 50470-1 + EN 50470-3 standards Serial Communication Exa MID is equipped, as standard feature on all types, with an optoinsulated and over-voltage protected RS485 serial communication port. The protocol is a full compliant Modbus-RTU suitable for communication with PLCs and with SCADA programs. The instrument data are read as numerical registers composed by mantissa and exponent in the IEEE format. A transmission speed of up to 38.400 bps, with maximum 125 registers (equivalent to 62 parameters) per query with no waiting time between queries, ensure an unrivalled...

Subject to modification without prior notice Electrex is a brand of Akse srl Via Aldo Moro, 39 - 42124 Reggio Emilia (RE) - Italy Tel : +39 0522 924244 - Fax : +39 0522 924245 www.electrex.it - email: [email protected] page 3 of 3