- Single-channel current data loggers
- Easy to use, ready to operate in minutes
- Includes software for analysis and reporting of recorded data
- Remote access over the internet
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- Two-channel current data loggers
- Wide range of current transformers available for each application
- Easy to use, set up in minutes
- Remote access over the internet
- Includes software for analysis and reporting of recorded data
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- Single-channel voltage data loggers
- With a rated voltage of 1500 V DC, it is suitable for use in photovoltaic systems.
- Easy to use, ready to operate in minutes
- Remote access over the internet
- Includes software for analysis and reporting of recorded data
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- Voltage quality diagnostics
- Full compliance with IEC 61000-4-30 Class A Ed 3
- Highly communicating instrument
- Qualistar range of easy-to-use products
- Alarms, recordings, transients, Inrush, etc.
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- 5 voltage inputs & 4 current inputs
- 10-minute Inrush mode
- Calculation of distorting power
- IP67: all-terrain model available
| Datasheet |
- TRMS AC+DC voltage up to 1,000 V
- TRMS AC+DC current: 5 mA to 10 kA (depending on the sensors)
- Frequency measurement
- Power values: W, VA, var, VAD, PF, DPF, cos φ, tan φ
- Energy values: Wh, varh, VAh, VADh, BTU, toe, Joule
- Harmonics: 0 to 50th order with phase information
- Transients: up to 50 events
- Inrush current capture over 4 periods
- Recording of selected parameters at maximum sampling rate from several days to several weeks
- Alarms: 4,000 entries across 10 alarm types
- Peak value detection
- Vectorial representation
- Available in more than 27 languages
- Protection rating: IP53 / IK08
- USB communication
- Compliance: IEC 61000-4-30 Class B
- Dimensions: 240 × 180 × 55 mm
- Weight: 1.9 kg
| Datasheet |
- TRMS AC+DC voltage up to 1,000 V
- TRMS AC+DC current: 5 mA to 10 kA depending on the sensors
- Frequency
- Power values: W, VA, var, VAD, PF, DPF, cos φ, tan φ
- Energy values: Wh, varh, VAh, VADh, BTU, toe, Joule,
- Harmonics from 0 to the 50th order, phase
- Transients: up to 210
- Inrush with waveform over a period > 10 minutes
- TrueInrush function
- Recording of a selection of parameters at the maximum sampling rate for several days to several weeks
- Alarms: 10,000 of 40 different types
- Peak detection
- Vectorial representation
- Available in more than 27 languages
- IP53 / IK08
- USB communication
- IEC 61000-4-30 Class B
- Dimensions / weight: 240 x 180 x 55 mm / 1.9 kg
| Datasheet |
C.A 8436, the rugged, waterproof IP67 Qualistar+:
- Indoor and outdoor use, even when it is raining
- 5 voltage inputs, 4 current inputs
- Continuous recording of all the parameters simultaneously
- Monitoring with alarms
- All types of installations
| Datasheet |
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Ergonomic, magnetized and suitable for all types of cabinets, PEL102 loggers provide all the power and energy measurements simultaneously.
- Voltage up to 1,000 V
- Current up to 10,000 A
- Voltage ratio / current ratio up to 650,000 V / up to 25,000 A
- Power from 10 W/var/VA to 10 GW/Gvar/GVA
- Energy up to 4EWh / 4 EVAh / 4 Evarh
- Phase: cos φ, tan Φ, PF
- Harmonics up to 50th order
- 8 GB SD memory card (SD-HC card up to 32 GB)
| Datasheet |
Ergonomic, magnetized and suitable for all types of cabinets, PEL103 loggers provide all the power and energy measurements simultaneously.
- Single-phase, split-phase and three-phase installations with or without a neutral, as well as other complex configurations.
- Implementation without cutting off the mains power supply
- BlueTooth, Ethernet and USB communication
- Automatic recognition of the sensors connected
- Recording on SD and SD-HC cards
- Real-time communication with a PC and analysis using PEL Transfer software
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- Compact magnetized casing,
- Communication via Wifi, GPRS, LAN (Ethernet), Bluetooth and USB
- ANDROID application
- Self-powered via its voltage inputs up to 600 V
- Continuous recording with an interval of 200 ms between measurements
- Measurements as per the IEEE 1459 standard
- 4 voltage inputs and 3 current inputs
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- IP67 all-terrain casing resistant to shock, UV light and high temperatures
- Communication via Wifi, GPRS, LAN (Ethernet), Bluetooth and USB
- Self-powered via its voltage inputs up to 1,000 V
- Continuous recording with an interval of 200 ms between measurements
- Measurements as per the IEEE 1459 standard
- 4 voltage inputs & 4 current inputs
- Ideal for installation on electricity poles
| Datenblatt |
| Bedienungsanleitung |
- Markets: small tertiary and residential
- electricians for consumption monitoring
- can be used to differentiate between the different loads
- More accurate thanks to the MINI94 current sensor
- Ergonomics: easy to read, simplicity, connections, compact design
- Connection via clamp without cutting off the power supply
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- Markets: small tertiary and residential
- electricians for consumption monitoring
- can be used to differentiate between the different loads
- More accurate thanks to the MINI94 current sensor
- Ergonomics: easy to read, simplicity, connections, compact design
- Connection via clamp without cutting off the power supply
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- Possibility of recordings covering several months
- Breakdown of energy losses
- Installation without cutting off the mains supply
- Android application with motor diagnostics
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- Possibility of recordings covering several months
- Breakdown of energy losses
- Installation without cutting off the mains supply
- Android application with motor diagnostics
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PQA820 is the innovative proposal by HT to easily analyze all involved components on a three-phase or single-phase electric system. When designing them, HT has taken particular care of three aspects: setting, the operating or storage environment and data transfer.
- PQA820 do not need to be set. They simply need to be connected, started and they respectively record 383 and 44 quantities simultaneously.
- They are provided with a comfortable IP65 case, which allows working in any kind of environment.
- When recording has finished, thanks to the WI-Fi connection, the devices are capable of transferring all data onto a tablet, smart phone or PC.
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- 4 Kanäle für Strom 0,1A bis 1000A AC TRMS
- Kanäle für Spannung 10V bis 460V AC TRMS
- Schein-, Wirk- und Blindleistungsmessung
- Schein-, Wirk- und Blindenergiemessung
- Messung von cos und Leistungsfaktor (PF)
- Messung von Frequenz
- Berechnung des THD für Spannung und Strom
- Oberschwingungsanalyse Spannung & Strom bis zur 50. Ordnung
- Netzarten: einphasig, Drehstrom mit oder ohne Neutralleiter
- Konfiguration und Datenübermittlung über USB, Wi-Fi
- Echtzeit-Analyse über Wifi oder USB
| Datenblatt |
| Bedienungsanleitung |
- 4 Kanäle für Strom 0,1A bis 1000A AC TRMS
- Kanäle für Spannung 10V bis 460V AC TRMS
- Schein-, Wirk- und Blindleistungsmessung
- Schein-, Wirk- und Blindenergiemessung
- Messung von cos und Leistungsfaktor (PF)
- Messung von Frequenz
- Berechnung des THD für Spannung und Strom
- Oberschwingungsanalyse Spannung & Strom bis zur 50. Ordnung
- Netzarten: einphasig, Drehstrom mit oder ohne Neutralleiter
- Konfiguration und Datenübermittlung über USB, Wi-Fi
- Echtzeit-Analyse über Wifi oder USB
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One instrument for all electrical safety tests and Power Quality analysis GSC60 was designed with the aim of making safety of electrical installations visible and valuable, easily and quickly. Thanks to the new HTOS™ system the unit displays a message OK - NOT OK after completing the test. The user interface, totally updated under HTOS™, permits to set and carry out measurements in few steps. You can store all recorded data and create folders and subfolders for each kind of test adding comments and notes by means of virtual keyboard. GSC60 is also a three-phase power and energy consumption analyzer boasting, as unique feature, its FREE APP HTAnalysis compatible with iOS and Android. Test results can be transferred through Wi-Fi onto smartphone or tablet enclosing a picture, a video or a voice note to each measurement. You can transfer everything onto HT Cloud and make data available in real time for your colleagues all over the world. GSC60 makes the job of installer, electrician or consultant easy, rapid and cost-effective.
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1500V Multifunction I-V Curve Tracer for maintenance and efficiency tests on single-phase installations.
- Measurement of efficiency of a single-phase photovoltaic system
- Measurement of I-V Curve of a module or of a string up to 1500V/10A - 1000V/15A
- Measurement of open-circuit voltage of a module or of a string (VOC) 1500V
- Measurement of short-circuit current of a module or of a string (ISC) 15A
SOLAR I-Ve allows both testing a single-phase (three-phase with optional MPP300) photovoltaic system and verifying I-V curve. Thanks to remote unit SOLAR02, it is possible to test the system complying with the requirement of simultaneity as provided for by the reference standard. SOLAR02 is a datalogger which, synchronized with SOLAR I-Ve, acquires the data relevant to irradiation and temperature while tests carried out by SOLAR I-Ve are carried out. For measuring I-V curve, SOLAR I-Ve manages an internal database of the modules, which can be updated at any time by the user by comparing the measured data with the rated values, thus allowing the immediate evaluation whether the string or the module fulfills the efficiency parameters declared by the manufacturer. Current and voltage measurement at modules/strings output is measured with the 4-terminal method, which allows extending possible measuring cables without considering any compensation of their resistance, thus obtaining always precise measurements. At the end of the test, the display of I-V curve on the screen is a clear indication about the compliance with the specifications declared by the panel manufacturer.
| Datasheet |
XL421 is a Data Logger capable of measuring and recording the true root mean square(TRMS) value of AC current up to 2500A in single-phase electric systems for different applications (evaluation of load currents, rated powers of transformers, etc.). The device has a comfortable mobile structure with integrated flex clamp jaws which allow surrounding also a big-sized cable or bar. Thanks to a an advanced memory management algorithm it is possible to monitor a system even for a long time. The device starts recording with a sampling period which can be selected through software among 1, 6, 30 and 60 seconds and, when memory is almost full, the previously recorded values are “re-sampled” according to the subsequent value of the sampling period, thus freeing part of the memory; the device then goes on recording new values, using the new measuring interval. In this way, it is possible to keep the device recording up to approximately 1 year. Each recording is kept stored in the internal memory and can be downloaded and managed by PC always through a dedicated software. Data Logger XL421 is also provided with a special adhesive strap which makes it possible to place it in any place in the installation where measuring is needed. The high protection rating (IP65) makes this device fully reliable also under extreme operating conditions.
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XL422 is a Data Logger capable of measuring and recording the true root mean square(TRMS) value of AC current up to 2500A in three-phase 3-wire electric systems for different applications (evaluation of load currents, rated powers of transformers, etc.). The device has a comfortable structure with integrated flex clamp jaws which allow surrounding also big-sized cables or bars. Thanks to a an advanced memory management algorithm it is possible to monitor a system even for a long time. The device starts recording with a sampling period which can be selected through software among 1, 6, 30 and 60 seconds and, when memory is almost full, the previously recorded values are “re-sampled” according to the subsequent value of the sampling period, thus freeing part of the memory; the device then goes on recording new values, using the new measuring interval. In this way, it is possible to keep the device recording up to approximately 90 days. Each recording is kept stored in the internal memory and can be downloaded and displayed on the PC always through a dedicated software. Data Logger XL422 is also provided with a special adhesive strap which makes it possible to place it in any place in the installation where measuring is needed. The high protection rating (IP65) makes this device fully reliable also under extreme operating conditions.
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XL423 is a Data Logger capable of measuring and recording the true root mean square(TRMS) value of AC voltage up to 600V in single-phase electric systems for different applications (evaluation of mains voltage, load unbalance, etc.). The device has a comfortable fully mobile structure complete with cables for measuring voltage with safety alligator clips. Thanks to a an advanced memory management algorithm it is possible to monitor a system even for a long time. The device starts recording with a sampling period which can be selected through software among 1, 6, 30 and 60 seconds and, when memory is almost full, the previously recorded values are “re-sampled” according to the subsequent value of the sampling period, thus freeing part of the memory; the device then goes on recording new values, using the new measuring interval. In this way, it is possible to keep the device recording up to approximately 1 year. Each recording is kept stored in the internal memory and can be downloaded and displayed on the PC always through a dedicated software. Data Logger XL423 is also provided with a special adhesive strap which makes it possible to place it in any place in the installation where measuring is needed. The high protection rating (IP65) makes this device fully reliable also under extreme operating conditions. Not available anymore. Alternative products: PQA820 MERCURY
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XL424 is a Data Logger capable of measuring and recording the true root mean square(TRMS) value of AC voltage up to 600V in three-phase 4-wire electric systems for different applications (evaluation of mains voltage, load unbalance, etc.). The device has a comfortable fully mobile structure complete with cables for measuring voltage with safety alligator clips. Thanks to a an advanced memory management algorithm it is possible to monitor a system even for a long time. The device starts recording with a sampling period which can be selected through software among 1, 6, 30 and 60 seconds and, when memory is almost full, the previously recorded values are “re-sampled” according to the subsequent value of the sampling period, thus freeing part of the memory; the device then goes on recording new values, using the new measuring interval. In this way, it is possible to keep the device recording up to approximately 90 days. Each recording is kept stored in the internal memory and can be downloaded and displayed on the PC always through a dedicated software. Data Logger XL424 is also provided with a special adhesive strap which makes it possible to place it in any place in the installation where measuring is needed. The high protection rating (IP65) makes this device fully reliable also under extreme operating conditions. Not available anymore. Alternative products: PQA820 MERCURY
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Current and Voltage Data Loggers
Current and voltage data loggers are specialized recording instruments that capture and document electrical quantities such as voltage (DC/AC) and current (DC/AC), and can correlate them with other measurement parameters. They are deployed in energy management, system monitoring, predictive maintenance, power quality measurement and test/inspection systems. Typical features include high channel count, galvanic isolation, flexible input circuitry, long logging period and comprehensive analysis functions.
FAQ
Which electrical parameters do current and voltage data loggers commonly record?
They record voltages (e.g., ±50 V, 0–1000 V, AC/DC) and currents either via direct inputs or using current transformers or clamps. Many support combined measurement of voltage and current, power or energy. :contentReference[oaicite:3]{index=3}
What connection and sensor concepts are used?
For current measurement typical sensors include current transformers (CTs), Rogowski coils, Hall-effect sensors or shunts; for voltage measurement voltage dividers or voltage transducers. Some loggers support both AC and DC signals. :contentReference[oaicite:4]{index=4}
What are the requirements for sampling rate and channel count?
High sampling rates and multiple channels are required to capture transient events and perform power-quality analysis. Data loggers can record multiple current and voltage channels simultaneously over long durations. :contentReference[oaicite:5]{index=5}
How is data transferred and analyzed?
Data are stored internally (flash, SD card) and can be transferred via USB, Ethernet or Wi-Fi. Export formats like CSV or vendor-specific formats allow trend analysis, load profiling or fault diagnostics.
What role do these loggers play in energy management or maintenance?
By capturing current and voltage waveforms and profiles, load characteristics, efficiency indicators, anomalies or faults can be identified—forming the basis for predictive maintenance or energy-use optimization.
Which protection and environmental requirements matter?
In electrical installations important parameters are enclosure rating (e.g., IP65), galvanic isolation, surge protection and specified ranges for temperature and humidity to ensure reliable long-term measurements.