UTE310 600V High-Performance Digital Power Meter
.ut-cat{color:#333;font-family:Arial,Helvetica,sans-serif;line-height:1.5;} .ut-cat h4{color:#1a1a1a;font-size:1.15em;margin:1.5em 0 .5em;padding-bottom:.25em;border-bottom:2px sol id #ccc;} .ut-cat h2{color:#1a1a1a;font-size:1.25em;margin:1.2em 0 .4em;} .ut-cat h3{color:#222;font-size:1.05em;margin:1em 0 .3em;} .ut-cat p{margin:.6em 0;} .ut-cat ul{margin:.5em 0;padding-left:1.4em;}.ut-cat li{margin:.25em 0;} .ut-cat img{max-width:100%;height:auto;} .ut-cat table{border-collapse:collapse;width:100%;margin:.5em 0;} .ut-cat th,.ut-cat td{border:1px solid #ddd;padding:6px 10px;text-align:left;vertical-align:top;} .ut-cat td strong{color:#222;} Overview The UNI-T UTE310 Series is a single-phase high-resolution digital power meter for precision power-conversion and energy-measurement work. It samples at 1 MSa/s across a DC to 300 kHz bandwidth and resolves current to 0.1 µA and voltage to 1 mV — fine enough to measure milliwatt standby draw and the switching content that an AC line meter averages away. Four models share one measurement platform. The base UTE310 covers 75mV – 600V / 5mA – 20A from a 75 mW floor; the high-voltage UTE310H extends to 75mV – 1000V / 10mA – 50A for high-line and high-power work. Either is available with GPIB in place of RS-232 (G/HG) for instrument-bus automation. Sampling, resolution, bandwidth, harmonic analysis and the measurement firmware are identical across all four. Choosing Your Model — UTE310 Series The UTE310 name spans four models on one platform. They differ only by voltage/current range and communication interface — the 1 MSa/s sampling, 0.1 µA current resolution, DC–300 kHz bandwidth, 50th-order harmonic analysis and energy integration are identical. Compare the full series before selecting: Model Voltage / Current Power Communication UTE310 75mV – 600V / 5mA – 20A 75mW – 1200W USB / LAN / RS-232 / Dig I/O UTE310G 75mV – 600V / 5mA – 20A 75mW – 1200W USB / LAN / GPIB / Dig I/O UTE310H 75mV – 1000V / 10mA – 50A 15W – 50kW USB / LAN / RS-232 / Dig I/O UTE310HG 75mV – 1000V / 10mA – 50A 15W – 50kW USB / LAN / GPIB / Dig I/O Choose the voltage class that covers your line (600 V base, 1000 V on the H models) and the interface your bench uses. The UTE310 is the high-resolution single-phase instrument in the line. For three-phase or multi-rail measurement see the 3-channel UTE323 Series; for compact AC panel metering see the UTE9800+ Series — distinct instrument lines for different measurement needs. Key Features Single-phase true-power measurement — V, A, W, VA, PF, Hz and energy 0.1 µA current resolution, 1 mV voltage resolution — measures down to a 75 mW power floor 1 MSa/s sampling — resolves fast switching-load transients DC to 300 kHz measurement bandwidth Harmonic analysis to the 50th order Energy integration (Wh / Ah) with selectable refresh from 0.1 s 600 V base range; 1000 V / 50 A on UTE310H / UTE310HG D/A analog output for chart-recorder and DAQ integration 4.3-inch TFT-LCD — V, A, W and PF shown together USB + LAN + Digital I/O standard; GPIB in place of RS-232 on G / HG UNI-T UTE310 Series Details UTE310 measurement screen — V, A, W, PF and frequency shown together 0.1 µA / 1 mV Resolution — Measures What Panel Meters Miss Current resolves to 0.1 µA and voltage to 1 mV, with a power floor of 75 mW. That is fine enough to characterize milliwatt-class standby and sleep-mode draw, leakage current and low-load efficiency — measurements a compact AC panel meter, resolving in tens of microamps and watts, cannot make. ×UTE310 measurement screen — V, A, W, PF and frequency shown together 1 MSa/s Sampling & DC–300 kHz Bandwidth Switching converters and motor drives put energy well above the line fundamental. The UTE310 samples at 1 MSa/s across a DC to 300 kHz bandwidth, so PWM ripple, switching harmonics and fast load steps are captured in the power calculation rather than averaged away. 1 MSa/s sampling captures fast load transients ×1 MSa/s sampling captures fast load transients Harmonic analysis to the 50th order Harmonic Analysis to the 50th Order Per-order harmonic measurement to the 50th order quantifies distortion on the input current of rectifier and PFC front ends — the data needed for power-quality and standby-compliance assessment. ×Harmonic analysis to the 50th order Energy Integration Watt-hour and amp-hour integration accumulate consumption over a test window for efficiency runs, standby-energy measurement and long-duration profiling, with the result held on screen. Integration (Wh / Ah) accumulation over time ×Integration (Wh / Ah) accumulation over time Live voltage and current waveform display Waveform Display Live voltage and current waveforms confirm what the meter is measuring — useful for spotting clipping, asymmetry or a miswired CT before trusting the numbers. ×Live voltage and current waveform display D/A Output & External Scaling A D/A analog output drives a chart recorder or DAQ for trend logging, and external CT/PT scaling extends the current and voltage range for high-power lines without changing the instrument. D/A analog output for chart-recorder / DAQ integration ×D/A analog output for chart-recorder / DAQ integration Averaging modes for stable readings on noisy loads Averaging for Stable Readings on Noisy Loads Selectable averaging steadies the reading on switching loads whose instantaneous power swings cycle-to-cycle, so efficiency and PF figures settle to a number you can record rather than chase. ×Averaging modes for stable readings on noisy loads GPIB in Place of RS-232 — UTE310G / UTE310HG The G and HG models substitute a GPIB (IEEE-488) port for the RS-232 port — they do not add GPIB alongside it. If your ATE rack is built on a GPIB instrument bus, the G/HG models drop in directly; if you automate over LAN or USB (standard on every model), the base UTE310 / UTE310H already covers you and the G/HG variant is unnecessary. USB, LAN and Digital I/O are present on all four models regardless. Voltage Class — UTE310 / G (600 V) and UTE310H / HG (1000 V) The base UTE310 / UTE310G measure to 75mV – 600V and 5mA – 20A. The UTE310H / UTE310HG extend to 75mV – 1000V and 10mA – 50A for high-line, high-power and three-phase-leg measurement. The measurement engine is identical — the H models change the input range and front end, nothing else. Applications Switching-Supply & Converter Efficiency Measure input and output true power on SMPS, DC/DC and PFC stages to calculate efficiency directly. The 1 MSa/s / 300 kHz front end keeps switching content in the measurement instead of averaging it out. Motor-Drive & Inverter Input Power The 1000 V / 50 A range on the UTE310H covers VFD and inverter input measurement; harmonic analysis quantifies the distortion a non-linear front end pushes back onto the line. Automated Characterization USB and LAN are standard on every model for LabVIEW / Python-VISA sweeps over load and line; the G/HG models add GPIB for GPIB-based instrument-bus racks. Digital I/O supports pass/fail hand-off in end-of-line test. Accessories and Family Options UTE-series test cables and the UTE-M01-US North-American test fixture support safe connection to standard plug loads. Pair the UTE310 with a UNI-T programmable DC source or electronic load for a complete efficiency-characterization bench. Frequently Asked Questions What is the difference between UTE310 and UTE310H? Range. The UTE310 measures to 75mV – 600V / 5mA – 20A; the UTE310H extends to 75mV – 1000V / 10mA – 50A. The measurement engine, accuracy, sampling and firmware are identical. Do the G and HG models add GPIB on top of RS-232? No — they substitute GPIB for the RS-232 port. USB, LAN and Digital I/O are present on every model. If you automate over LAN or USB you do not need the G/HG variant. Can it measure DC as well as AC power? Yes. The measurement bandwidth is specified from DC, so DC, AC and mixed-mode power are all measured. Does it measure harmonics? Yes — per-order harmonic analysis to the 50th order, for power-quality and compliance work. Specifications Voltage range 75mV – 600V Current range 5mA – 20A Power range 75mW – 1200W Voltage resolution 1mV Current resolution 0.1µA Sample rate 1MSa/s Bandwidth DC, 0.1Hz – 300kHz Wiring mode 1P2W Harmonic analysis 1st – 50th Display 4.3-inch TFT-LCD Interface (base) USB / LAN / RS-232 / Dig I/O Interface (G / HG) USB / LAN / GPIB / Dig I/O Documentation UTE310 Datasheet, User Manual, and Software/Firmware Downloads Options & Accessories Included in box: Power cord Safety leads Y-Terminal Alligator clips English download guide multi-language safety manual calibration report (COC)
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