.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 solid #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 UT622C is a professional-grade handheld LCR meter that extends component testing to 100 kHz. Across 100 Hz, 120 Hz, 1 kHz, 10 kHz, and 100 kHz it measures L, C, R, impedance, ESR, and D/Q at 0.1% basic accuracy, with a 4-wire Kelvin connection and included Kelvin test leads for repeatable low-impedance readings. The higher 100 kHz frequency characterizes parts closer to their working conditions — useful for production QC and design verification — with series/parallel modelling, open/short correction, and tolerance sorting on a portable Li-polymer-powered instrument. Key Features Test frequencies to 100 kHz: 100 Hz, 120 Hz, 1 kHz, 10 kHz, 100 kHz Measures L, C, R, Z, ESR, and D/Q with 0.1% basic accuracy 4-wire Kelvin connection with included Kelvin test leads Open/short correction; series and parallel modelling Selectable test signal: 0.1 / 0.3 / 1 Vrms Tolerance sorting from 1% to 20%; up to 20 readings/s 500-group data logging over USB 2.8-inch TFT display; ~8 h rechargeable Li-polymer UT622C Details Testing to 100 kHz Extending the top test frequency to 100 kHz lets you characterize capacitors and inductors closer to the frequencies they operate at, where parameters like ESR and impedance differ meaningfully from their low-frequency values — important for production QC and design verification. 4-Wire Kelvin Measurement A 4-wire Kelvin connection separates the drive and sense paths so lead and contact resistance don't corrupt the reading — essential for low-impedance components where milliohm-level errors matter. Open and short correction nulls fixture and lead effects before a measurement run. Full Parameter Set Beyond L, C, and R, the meter reads impedance (Z), equivalent series resistance (ESR), dissipation factor (D), and quality factor (Q), with series or parallel equivalent-circuit modelling and impedance phase from −179.9° to 179.9° — the parameters needed to characterize a part, not just read its nominal value. Sorting & Logging A tolerance-comparison function sorts parts pass/fail from 1% to 20% bands at up to 20 measurements per second, suited to incoming inspection and small-batch QC. Results log to 500 groups and transfer over USB. Portable Build A 2.8-inch color display, included Kelvin test leads, and a rechargeable Li-polymer pack good for about 8 hours make the UT622C ready for bench and line use. Compare the UT622 Series UT622A UT622C UT622E Max test frequency 10 kHz 100 kHz 100 kHz DC resistance (DCR) — — 0.01 mΩ – 20 MΩ Kelvin test leads — Included Included Applications Production QC and incoming inspection; design verification of capacitors and inductors at higher frequency; component characterization on the bench; and tolerance sorting in small-batch manufacturing. Frequently Asked Questions What does the 100 kHz frequency add? It characterizes components closer to their operating frequency, where ESR and impedance can differ from low-frequency values. Does it include Kelvin leads? Yes — Kelvin test leads are included for repeatable 4-wire low-impedance measurement. How is it different from the UT622E? The UT622E adds DC resistance (DCR) measurement from 0.01 mΩ to 20 MΩ on top of the same 100 kHz LCR capability. Specifications Frequency 100 Hz, 120 Hz, 1 kHz, 10 kHz, 100 kHz Capacitance 0.00 pF to 99.999 mF Inductance 0.00 µH to 99.999 H Impedance 0.0000 Ω to 9.9999 MΩ ESR Range 0.0000 Ω to 999.99 Ω Accuracy 0.10% D/Q Range D: 0.0000 to 9.9999; Q: 0.0000 to 99999 Impedance Phase Range -179.9° to 179.9° Test Signal Level 0.1 Vrms, 0.3 Vrms, 1 Vrms Output Impedance 100 Ω Tolerance Range 1% to 20% Equivalent Circuit Series, Parallel Auto Ranging Yes Auto LCR Yes Open Short Correction Yes Test Method 4-Wire Kelvin Data Logging Yes Fastest Test Rate 20 times/s Interface Mini-USB Data Storage 500 groups Display Size 2.8in Display Type TFT LCD Display Resolution 320×240 Battery 3.7 V 1800 mAh Li-polymer Battery Life 8 hours Ambient Temperature Range 0 °C to 40 °C Weight 420 g Dimensions 93 × 192 × 44 mm Documentation UT622C Datasheet UT622C User Manual
