Wally A+


19” Rack Panel
Class A according to IEC61000-4-30 Ed. 3
Class 0.2S for energy meter

  • ENEL GSTQ001/002
  • RSE 12004159
  • EN61000-4-30 Ed. 3 Classe A

LV/MV/HV electric systems

Three phase high-precision analyzer and recorder, PowerQuality, PowerMeter, Fault Recorder, Energy meter


  • Voltages and Currents
  • Active and Reactive (4 quadrants) Energy
  • Power Factor
  • Frequency
  • Flicker (Pst e Plt)
  • Voltages and Currents Harmonics and Interharmonics (up to 50° order)
  • Voltage Unbalance
  • Voltage Dips and Swells
  • Voltage Interruptions (short and long)
  • Rapid Voltage Changes
  • Waveforms (window records with programmable Pre and Post-Triggers)

According to IEC61000-4-30 Class A Ed.3 and IEC62053-22-30 Class 0.2S


Overvoltage Category:

  • CAT VI for 600 V and 5A channels
  • CAT III for 3 V channels

Class 2 (double insulation)

IEC61000-4-30 Class A Ed. 3

ENEL GSTQ001/002
“Fixed installed indoor Power Quality Instruments”

RSE 12003210
“Specifiche tecnico-funzionali delle apparecchiature di monitoraggio della qualità della tensione per le reti MT”

 The most compact analyzer on the market, with full equipment of integrated resources

  • 4 voltage channels 0÷600 Vac
  • 3 current channels 0÷10 Aac
  • 4 channels for current transducers 0÷3 Vac/dc
  • Internal storage memory 32GB
  • Up to 2 USB 2.0 (host) ports
  • 1 micro USB 2.0 (device) port
  • 2 Ethernet 100baseT ports
  • 1 GPS receiver port
  • 10+1 insulated digital input ports
  • 4 output channels 0/4÷20 mA (option)
  • Auxiliary supply ranges: 80÷260 Vac/dc
  • Internal UPS 30+ minutes backup supply
  • HMI with LCD display, functional keys and signalling leds
  • Internal GSM/GPRS/UMTS/LTE modem (option)
  • Size: Rack 19” Standard – 3U
  • Weight: Kg 3.2

For further information, please download our technical data sheet (DOWNLOAD AREA, left sidebar)

Power Supply
Voltage: 80÷275 Vac/dc – 50/60Hz
Power consumptions: 20 VA
Battery: 12 V 0.8Ah Pb sealed
Battery operating time: 30 minutes, self-limited

Voltage input channels
Channels: 4
Single range up to 600  Vac/dc
Permanent overload: +100% Udin
Type: resistor network
Impedance: 1 MOhm (L4: 150 kOhm)
Pluggable terminal blocks pitch 7,62 mm

Direct input Current channels
Channels: 3
Range: 0÷10 Aac
Permanent overload: +100%
Type: Internal current transformer
Pluggable terminal blocks pitch 7,62 mm

Current channels from transducers
Channels: 4
Range: 0÷3 Vac/dc
Permanent overload: +50%
Type: resistor network
Impedance: 1 MOhm
Pluggable terminal blocks pitch 3.81 mm

Measurement method
Synchronous sampling with phase locking
Bandwidth: -3dB @ 6,4 kHz
A/D converter resolution: 16 bit
Sample rate: 25,6 ksample/sec.
Compliance: EN61000-4-30 Class A

Accuracy (@25 °C, 45÷65Hz)
Voltage: ±0.1% Udin from 10% to 150% Udin
Current:  ±0.1% Idin from 10% to 150% Idin
Frequency: ±0.01% reading
Harmonics: ±0.5 reading for THD > 0.5%

Digital Input/Output
10 insulated digital inputs
1 digital input for busbar coupler
4 insulated digital output (option)

Analog Output (option)
4 insulated analog output: 0/4÷20mA range

User interface
Led: On, Battery status, Modem status
Display: alphanumeric LCD, 4 raws/20 characters
Keyboard: n. 6 functional keys

Ethernet Port (back panel)
Type: 100baseT
Connector: RJ45

Ethernet Port (front panel)
Type: 100baseT
Connector: RJ45

USB Host Port (front panel)
Type: Host 2.0
Pendrive, pulse emitter, USB to serial converter

USB Device Port
Type: Device 2.0 – micro usb connector
Personal Computer interface

Expansion slot
Position: On back panel
Available ports: Power supply 12 Vdc (unregulated 9-13.7V), 200 mA max, USB 2.0 full speed Host port

Format: yyyy/mm/dd hh:mm:ss.cc,msec
Accuracy: better than 1 second/day without GPS
better than 16.67 ms/day from UTC with GPS
External time synchronization sources:
GPS receiver mod GTS9000 (optional)
NTP Server

Size: rack 19” – 3U
Weight: 3,2 Kg

Meets EN61010-1
Double insulated power supply
Voltage and current inputs: CAT IV / 600 V class 2 (double insulation)
Other inputs: CAT III / 300 V
Protection degree: IP40 (connection compartment IP20)

Classification EN62586-1: PQI-A-FI1-H
Emissions: EN55022 Class A
Immunity:  EN62586-1

Environmental conditions
Operating temperature: -25 +55 °C
Storage temperature: -40 +70 °C
Humidity: 85% non-condensing

Internal GSM/GPRS/UMTS/LTE Modem (option)
External SMA antenna

GTS 9010 GPS receiver (option)
GPS receiver for time synchronization with magnetic antenna, cable 5 mt

Clamps current transducers (option)
Clamp current transducers /1 A, /5 A or /3 V output

For further information, please download our technical data sheet (DOWNLOAD AREA, left sidebar)