HT Italia PQA824 Three-phase and Single-phase Power Quality Analyzer.

HTI Auth Large

Measure, record, analyze power quality on electrical installations with the 800 series meters from HT ITALIA. The PQA824 is completely designed in Windows CE technology permitting an easy and fast analysis of large quantities of data.

The unit has an innovative graphic color TFT “touch screen,” and a wide display that will meet all requests from any electrical verifier. The interface is user-friendly and help is available from each screen. A vectorial diagram feature, allows evaluation of phase angles between voltages and currents in order to understand the inductive or capacitive nature of loads on an installation.

An internal memory of 15Mbytes allows the saving of parameters and recording data over extended periods of time. The model has an USB interface to PC for the downloading and analysis using dedicated TOPVIEW Windows software. The PQA824 also permits detection of fast voltage transients and with a minimum resolution of 5µs (200kHz) and adjustable trigger thresholds.  The model has rechargeable  Li-Ion battery or can be used on the mains with the external 100/240V AC adapter.

The PQA 824 comes with four HTFLEX33E Flexible 3000A clamps (174mm diameter)


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HT Italia PQA824, is a three-phase and single-phase Power Quality Analyzer.

It allows the analysis of all electric parameters which can be measured nowadays, elaborating them easily and quickly. These devices can be easily programmed thanks to the new colour touchscreen display with icon menu, which guarantees the selection of internal parameters in a simple and intuitive way.

Each internal parameter is easily reached through the typical tree structure, widely known to Windows system users. The devices allow displaying the parameters in numerical and graphic mode, both for periodical analysis and for harmonic analysis. The graphic function “vector diagram” allows, among other things, to immediately evaluate the phase angle between input voltage and current signals, thus defining the loads’ nature. The 15MB internal memory allows saving recorded data for a remarkable number of consecutive days.
Model PQA824, compared to PQA823 and VEGA78, also allows detecting spikes on input voltages with a minimum resolution of 5μs (200kHz), setting different trigger thresholds which are very useful when solving typical problems on installations (monitoring atmospheric charges, commutations of switching suppliers, disturbance frequencies, etc.). The Help online function available on each screen is a valid and concrete help for the operator in understanding how the devices are used.

HT Italia PQA824 Functions:

  • True-rms P-N, P-P, P-PE voltage measurements
    (5 inputs).
  • True-rms current on phases and neutral (4 inputs).
  • Active, reactive and apparent power measurements.
  • Active, reactive and apparent energy measurements.
  • Power Factor.
  • Frequency.
  • Maximum of 251 parameters selected at the same time.
  • Integrated period selectable 1 sec. to 60 min.
  • Harmonic analysis of voltage and current up to 49th component.
  • Voltage anomalies with 10ms resolution.
  • Numerical and graphical (waveforms) visualization.
  • Histogram visualization of harmonic analysis.
  • Vectorial diagram of voltages and currents.
  • Flicker analysis (Pst, Plt) in compliance to EN 50160.
  • Voltage unbalance in compliance to EN 50160.
  • Inrush current measurements.
  • Fast voltage transients with 5µs resolution.
  • TFT color display with “touch screen”.
  • 15 meg-byte internal memory.
  • USB interface for PC.
  • Windows software for analysis
  • Contextual help selectable on each screen.
  • Visual keyboard at display.
  • Rechargeable Li-Ion battery and external AC/DC adapter.

HT Italia PQA824 Included Accessories:

  • Ki-IT800: set of 5 cables with alligator clips.
  • HTFLEX33D: flexible clamp 3000A AC, diameter 174mm, 4 pcs.
  • A0055: 100/240V 50Hz external adapter.
  • TOPVIEW2007: PC Windows software + USB cable C2007.
  • BORSA2051N: carrying bag.
  • PT400: Pen for touch screen display.
  • Rechargeable battery Li-ION (fitted on meter).
  • User manual on CD-ROM.
  • Quick reference guide.
  • Calibration certificate ISO9000.

HT Italia PQA824 Specifications:

AC/DC voltage in single-phase/three-phase systems Max 1000V
AC/DC current in single-phase/three-phase systems Max 3000A
Cosphi, Power Factor
Voltage unbalance (NEG%, ZERO%)
Active, reactive, apparent power/energy and DC power
Voltage and current harmonics up to the 49th with THD In real time up to the 64th
Voltage anomalies (dips, peaks) with a resolution of 10ms (@ 50Hz)
Voltage Spikes with 5µs resolution
Electric motor starting current (INRUSH)
Voltage flickers (Pst, Plt)
Full analysis EN50160
Phase sequence
Neutral-Ground Voltage
Neutral current
Max number of simultaneously selectable parameters 251
Recording with selectable integration period 1s-60m
Indicative memory duration (@ PI=10min @ max numb parameters) 90 days
Indication of recording duration
Internal memory capacity 15MB
External compact flash card Optional
Default and custom recordings
Saving instant sampled values
Summary table of main electric parameters
Voltage/current waveforms
Tables or histograms of Harmonics and THD% In tempo reale fino alla 64ª
Voltage/current vector diagram
Touchscreen colour display
Power supply with rechargeable battery
Auto power off
USB port for data download onto Pen Drive
Context help active on each screen
Protection password on recording
Size (LxWx H) (mm) 235x165x75
Weight in grams (batteries included) 1000


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