Power and Energy Quality Analyzer - Class S
› AC voltage in single-phase and three-phase systems
› AC current in single-phase and three-phase systems
› Cosphi, Power Factor, K-Factor
› Voltage unbalance
› Flicker
› Active, Reactive, and Apparent power/energy
› Voltage and current harmonic amplitude and phase up to the 63rd order with THD% calculation
› Power harmonic amplitude up to the 63rd order
› Voltage and current interharmonics up to the 63rd order with THI% calculation
› Voltage anomalies (dips, swells) with 10ms resolution (@50Hz)
› Fast voltage transients (8kV, 1µs)
› Inrush current for electric motors
› Event waveform recording (anomalies, fast transients, and inrush currents)
› Phase sequence detection
› Data transfer to PC via HTAgorà software
› Up to 3180 simultaneously recordable electrical parameters with programmable integration period
› USB, Ethernet, and Wi-Fi connection
› Memory card
› Color touchscreen display
Maximum accuracy and reliability with the auto-configuration (AUTOSET) function
The PQA924 features an advanced auto-configuration function designed to eliminate connection errors and optimize setup time. With the AUTOSET mode, the operator can ensure the correct assignment of clamp sensors, preventing incorrect measurements and discrepancies in recorded electrical values.
4 key reasons to use the AUTOTEST function
› Automatically detects connected current transducers, enabling instant configuration with zero margin for error.
› Prevents wiring errors that could compromise measurement accuracy.
› Avoids inconsistent electrical values and the need for repeated recordings.
› Automatically corrects reversed clamp connections, preventing misalignment between voltage and current that could lead to erroneous readings.
HT Instruments PQA924 Power & Energy Quality Analyzer Class S 6000A CTs 3-Ph PQA
Ordering Information
Please allow 4-5 weeks lead time for this product to arrive. Please contact us for any additional information.
This item comes with a 1 year warranty from the manufacturer.
Technical Specifications
AC voltage in single-phase/three-phase systems 1000V AC current in single-phase/three-phase systems 6000A / 10000A with HTFLEX355 (optional) Cosphi, Power Factor Voltage unbalance (NEG%, ZERO%) Active, reactive, apparent power/energy Voltage and current harmonics and inter-harmonics up to the 63rd and THD% absorbed/generated (4 quadrant measurements) Power harmonics up to the 63rd absorbed/generated Voltage Anomalies (dips and peaks) with a resolution of 20ms Voltage fast transients (spikes) up to 8kV with 1µs resolution (1MHz) Max 2000 events Electric motor starting current with 10ms resolution (@50Hz) 6000A Voltage flickers (Pst, Plt) Max 2000 events Full analysis EN50160 Phase sequence Neutral-Ground Voltage Neutral current Max number of simultaneously selectable parameters 3177 Recording with selectable integration period 0.2s-120m Indicative length of SD-card memory (@ PI=1s @ 450 selected parameters) about 15 days Memory for data saving Memory card Default and custom recordings Saving instant sampled values Summary table of main electric parameters Voltage/current waveforms Summary table of main electric parameters Voltage/current waveforms Tables or histograms of Harmonics and THD% Live up to 63rd Voltage/current vector diagram Touchscreen colour display 320x240pxl Power supply with rechargeable battery 6x1.2V NiMH tipo AA External battery charger Auto power off Communication modes USB-C, Ethernet, WiFi Context help active on each screen Size (LxWx H) (mm) 225x165x75 Weight in grams (batteries included) 1200 Accessories
Standard Accessories
- VA500
- PT400
- Quick pick guide
- CF832
- C2010
- HTAgorà software downloadable online (Support and Downloads Area)
- YABAT0003000 (6 pieces)
- HTFLEX335 (x4 6000A CTs)
- KIT802
- A0080
Optional Accessories
- HT96U
- SP-0500
- HT97U
- HP30C2
- HP30C3
- HT4005N
- 607-IECN
- HTFLEX315
- HTFLEX355
- ACON3F5M














