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ET300 · Virtual Instrumentation Base System

Virtual instruments interface with experimenter modules and measurement accessories

The measurement and instrumentation core of the Sangari ET modular training platform: an interface controlled from a PC or tablet, with a full suite of virtual instruments, two experimenter modules that host the plug-in experiment cards of the ET course family, and a complete measurement accessory set.
ET300 interface unit and experimenter module
Capabilities
  • Central measurement interface with a complete suite of virtual instruments operated from a PC or tablet
  • 2/4-channel virtual oscilloscope - 10 MHz bandwidth, 100 MS/s sampling
  • Virtual voltmeters and ammeters for DC and AC, TrueRMS
  • Spectrum analyzer, Bode plotter, function and arbitrary generators
  • Adjustable DC and three-phase supply, variable up to 150 Hz
  • 16-bit digital I/O and 8 switching relays for fault-simulation exercises
  • Experimenter modules accept plug-in experiment cards for the whole ET course family
  • USB and WLAN connection to a PC or tablet; all experiments at safety extra-low voltage
  • Multi-coloured status LEDs and overcurrent protection up to 5 A
Description
    The ET300 is the base system of the Sangari ET modular training platform for electrical engineering. A central interface unit incorporates all inputs, outputs, switches, power supplies, signal sources and measurement circuitry, and is controlled entirely from a PC or tablet via USB or WLAN. Two experimenter modules couple to the interface over the internal system bus: each accepts a plug-in experiment card, provides a breadboard area for discrete components, and distributes the fixed and variable supply voltages on 2 mm laboratory sockets. A measurement accessory set - shunt resistor boards of 1, 10 and 100 Ω for current measurement, laboratory terminals and a colour-coded cable set - completes the workstation.
Specifications
    Processor 32-bit, internal measurement memory
    PC or tablet USB 12 Mbit/s, WLAN 2.4 GHz IEEE 802.11 b/g/n
    Analog inputs 4 differential (A…D), 10 MHz bandwidth, 100 V-proof, 100 MS/s, 9 ranges, memory 4 × 8k×10 bit
    Current inputs 2, protected up to 5 A, 250 kS/s, 12-bit
    Analog output ±10 V, 0.2 A, DC…5 MHz, sine/square/triangle/arbitrary
    Power outputs 3× ±20 V, 1 A, DC…150 Hz - adjustable DC / three-phase supply up to 14 Vrms; fixed ±15 V, ±5 V, +3.3 V on the bus
    Digital I/O 16-bit in + 16-bit out, TTL/CMOS, 0…100 kHz, input memory 16 bit × 2k
    Relays 8, 24 VDC / 1 A, for circuit switching and fault simulation
    Protection overcurrent protection up to 5 A
    Status display multi-coloured LEDs - power, USB, WLAN, overload
    Experimenter modules 2 included - card holder, breadboard area, 2 mm sockets, bus daisy-chaining
    Unit / power 29.6 × 19 × 8.6 cm, 2.1 kg - external PSU 100…264 V → 24 VDC, 5 A
230V
L 296 W 190 H 86 mm
Virtual instrumentation software
    The ET300 has no physical knobs: every instrument exists as a virtual instrument on the PC or tablet screen, wired to the interface's real inputs and outputs. The windows below are the actual Sangari software.
Oscilloscope - Sangari VI
Oscilloscope - Sangari VI

Oscilloscope

The central measuring instrument: two channels extensible to four, sampled by the interface's differential inputs and displayed with full time-base, trigger and math control.

Channels / bandwidth 2/4 channels, 10 MHz, 100 MS/s
Time base 25 ranges, 100 ns…10 s/div; 9 voltage ranges 20 mV…10 V/div
Trigger source / edge / level, pre-trigger, XY and XT modes, math channel, cursor measurements
Also in the suite spectrum analyzer 3 Hz…1 MHz; Bode plotter 1 Hz…5 MHz with locus diagram; arbitrary generator; multimeter; power meter 100 mV…50 V
Digital and relays 16-channel digital I/O shown in binary, hex, decimal and octal; control of the 8 relays
Function generator - Sangari VI
Function generator - Sangari VI

Function generator

The signal source of every AC experiment - decade frequency selection with fine multiplier, six output functions and a precision attenuator for millivolt-level signals.

Frequency 0.5 Hz…5 MHz, decade + fine adjustment
Functions sine, triangle, rectangle, logic, DC± - up to 10 V
Attenuator 1:1 / 1:10 / 1:100
Dual voltmeter - Sangari VI
Dual voltmeter - Sangari VI

Dual voltmeter

Two voltage channels displayed simultaneously, with analog scale bars and overload indication.

Ranges 9 ranges, 100 mV…50 V, overload warning
Coupling DC and AC · TrueRMS
Pulse generator - Sangari VI
Pulse generator - Sangari VI

Pulse generator

Rectangular pulses with the width controlled independently of frequency - the source for duty-cycle, switching and digital-timing experiments.

Pulse width 5…95 % of the period
Modes unipolar (0…+A) / bipolar (−A…+A)
Frequency decades 0.1 Hz…100 kHz with fine adjustment
Dual ammeter - Sangari VI
Dual ammeter - Sangari VI

Dual ammeter

Two current channels measured through the interface's internal shunts - no external shunt wiring.

Ranges 300 mA / 3 A, inputs protected to 5 A
Coupling DC and AC · TrueRMS
3-fold DC supply - Sangari VI
3-fold DC supply - Sangari VI

3-fold DC supply

The three variable rails that power the experiment cards, each invertible for negative supplies.

Outputs 3 × 0…±20 V, 1 A, individually set and inverted
Three-phase mode variable frequency 0…150 Hz, up to 14 Vrms
Software environment
    The environment runs on a Windows 10/11 PC or tablet and connects to the interface over USB or WLAN. It hosts the interactive multimedia courses of the ET series with guided experiments, launches each virtual instrument directly from the instruction page, and saves measurements and graphs into the instructions by drag and drop. Questions with feedback and evaluation logic track student progress, and every course prints as a document with solutions. It integrates readings from external instruments such as the ET321 digital multimeter, controls the 8 fault-simulation relays, and exports all measured data - in English and Romanian, with online software updates for an unlimited period.
Scope of delivery
  • Central interface unit with virtual instruments
  • 2× Experimenter modules
  • Measurement accessory set - 6 shunt resistors (2 × 1 / 10 / 100 Ω) on boards, 20+ laboratory terminals, connection cable set
  • External wide-range power supply
  • Power cable and USB cable
  • Basic software (incl. download) and user manual
  • Instructor and student manuals, wiring diagrams, experiment guides and maintenance manual - printed and PDF, institutional licence
Warranty and support
  • 12-month warranty on hardware and software
  • Spare parts available for at least 5 years
  • On-site installation, commissioning and instructor training on request

Part of package

Electrical Engineering Training System

A modular electrical-engineering training platform built around virtual instrumentation. The ET300 base system hosts a family of course modules covering three-phase systems, multimeter measurement, network analysis, and sensor measurement technology for non-electrical quantities.