High Performance in accuracy class 0.5S Harmonic analysis and Power Quality Integrated data-logger Plug version with connectors and Clamp version with terminals Femto Pro and Atto Pro are extremely versatile and precise microprocessor Harmonic & Power Quality Energy Analyzer designed to meet the most sophisticated applications of monitoring electrical parameters and managing electrical energy in industrial, commercial, public and residential sectors. The high precision class 0.5S for Active Energy (including CT for ECT family) and the measurements of individual harmonics up to the 31st order are obtained by continuously sampling the waveforms of voltages and currents with a very high resolution, thus ensuring maximum accuracy even in the presence of loads that vary rapidly over time (e.g. spot welders). Depending on the version, it monitors Power Quality with functions relating to the EN 50160 standard (peaks, dips, interruptions, harmonics) and EN 61000-4-30. Femto Pro and Atto Pro are equipped with a slave RS485 port for reading data via standard Modbus RTU protocol or for integration into an existing Electrex monitoring network. Thanks to its high capacity memory, it allows the implementation of multiple functions via PUK codes (even after commissioning) and has an architecture that allows the firmware to be updated/modified via remote upload. Integrated data-logger for pre-set measurement campaigns of the main parameters: total and phase energy (load curve), frequency and voltages, currents, total and phase powers, average and maximum voltage and current harmonics, voltage events (Power Quality). Available in various versions with digital and/or analog inputs/outputs or SIO (Sensor Input Output) expansion bus for the integration at any time of additional modules (Milli Pro) with digital and/or analog inputs/outputs and/or Milli Pro Sensor environmental parameter sensors (various combinations up to 4 Milli Pro I/O and Sensor). Versatility Femto Pro and Atto Pro are suitable for monitoring any type of load and for applications on any type of network: three-phase with 3 and 4 wires, symmetrical or asymmetrical, balanced or unbalanced, two-phase, up to 3 single-phase lines, low and medium voltage, with 1, 2 or 3 CTs as well as for measurements on 2/4 quadrants (import/export). Keyboard programming allows you to set all the operating parameters such as RS485 port, type of network, LV/MV, ratio of CTs and any VTs (free value), integration time and depending on the version: digital or analog inputs/outputs, environmental sensors and alarms (thresholds, delay and hysteresis). The programming system is password protected against unwanted changes. Simplicity Femto Pro D4 and 96 are equipped with a graphic LCD display (dot matrix) with white/blue LED backlight and adjustable contrast. Simultaneous reading of 4 or more measurements and their identification symbol with high visibility characters. The 3-key keyboard (6 for the Femto Pro 96) allows for simple and rational use of the instrument, while the page displayed upon power-up can be defined by the user. On the front, a red LED for calibration control pulses with a frequency proportional to the power (configurable). IEC EN 50470 and 62053-22 All versions of Femto Pro meet the essential requirements of IEC 50470-1 + 50470-3 as well as 62053-22 as required for white certificates Electrex is a brand of Akse srl Via Aldo Moro, 39 42124 Reggio Emilia Italy Tel. +39 0522 924 244 Email: [email protected] Web: www.electrex.it Different versions for every application The Femto and Atto Pro are available in two versions: Femto Pro D4 and Atto Pro D4: for DIN rail installation Femto Pro 96: for front panel mounting (96x96) Thanks to flexible and expandable firmware, each model can be configured with different features, based on specific electrical load monitoring needs. Below are some available versions (others can be freely configured using the code creation table): • Femto/Atto Pro (basic): Real-time THD and TDD measurements of voltages and currents, neutral current, average, minimum, and maximum voltage, current, and power values. Includes total and single-phase energy counters. Phase sequence detection and configuration function. Up to 4 operating times and 8 alarms, configurable even with complex logic. • Femto/Atto Pro H: Adds real-time analysis of individual harmonics up to the 31st order of the 3 phase voltages and 3 line currents to the previous measurements. • Femto Pro H PQ Log Energy: Real-time measurements, harmonic analysis, and integrated data logger for recording total and phase energy counters and voltage events (interruptions, dips, and swells) useful for monitoring power quality. • Femto Pro Full: Complete version with all the advanced PUK features (see dedicated section). Real-time analysis and data logger for recording 4 harmonic components, total and phase energy counters (load curves), voltage events (interruptions, dips, and swells), and average, minimum, and maximum voltage, current, power, and frequency values. Plug RJ45 and Clamp series Femto Pro D4 and Atto Pro D4 are available in Clamp (screw terminals) or Plug (RJ45 connectors and removable terminals) versions, for faster and less error-prone installation. 1 Engineered and manufactured in Italy

The following functions can be remotely implemented in the Femto and Atto Pro instruments by ordering the PUK Pro Upgrades: • Pro Upgrade H: Real-time harmonic analysis and display. • Pro Upgrade Log PQ: Detection and storage (datalogger) of voltage events (interruptions, voltage sags, and swells) useful for monitoring power quality. • Pro Upgrade Log Energy: Storage (datalogger) of total and phase energy counters (load curves). • Pro Upgrade Log H: Storage (datalogger) of average and maximum amplitudes of four voltage and current harmonic components. • Pro Upgrade Log Voltages & Currents: Storage...

Femto Pro is equipped with a real-time astronomical clock with rules for the automatic transition from solar time (Standard Time) to daylight saving time (Daylight Saving Time) and vice versa and with the configurable management of Coordinated Serial communication Femto Pro is equipped with an RS485 serial port with overvoltage protection. The communication protocol used is the Modbus-RTU “full compliant” suitable for communications with PLC and SCADA programs. The processed data are read as numeric registers composed of mantissa and exponent in IEEE format. A transmission of up to 115,200 bps...