ZOYI ZT‑DQ01 is a handheld, high‑precision LCR digital bridge designed to accurately measure inductance, capacitance, resistance and impedance, plus related parameters like ESR, Q, D, phase angle, and more, with up to 0.3% accuracy and test frequencies up to 100 kHz. It targets professional electronics repair, R&D, and component selection, combining a 2.8‑inch TFT color display, 4‑wire Kelvin test input, adjustable test level, and multiple measurement modes in a portable ABS+TPE body
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Features
- High‑precision LCR bridge: 0.3% best accuracy for R/L/C with 4‑wire Kelvin measurement to reduce lead/contact errors, suitable for serious component characterization.
- Wide measurement ranges:
- Inductance: 0 to 100 H.
- Capacitance: 0 to 100000 µF (100 mF).
- Resistance: down to milliohm level and up to around 20 MΩ according to sales listings.
- Multiple test frequencies: 100 Hz, 120 Hz, 1 kHz, 10 kHz, and 100 kHz for analyzing components under different conditions (e.g. audio vs switching supplies).
- Adjustable test level: selectable 0.1 V, 0.3 V, 0.6 V drive to suit sensitive devices or in‑circuit measurements.
- 2.8‑inch TFT color screen (320×240) with backlight, adjustable brightness (25/50/75/100%), and clear display of primary and secondary parameters.
- Flexible UI and settings: adjustable measuring speed (fast/medium/slow, e.g. 1 s, 2 s, 4 s per reading), auto/manual range, data hold, buzzer on/off, language (Chinese/English), auto power‑off time options.
- Compact handheld design in ABS+TPE material with ergonomic keys for frequency, level, speed, and mode, intended for bench and field use.
Measurement Functions
- Core measurements:
- Inductance (L), capacitance (C), resistance (R), impedance (Z).
- Characteristic parameters:
- Q factor, dissipation factor D, ESR, phase angle θ, reactance X, conductance G, susceptance B depending on mode and component.
- Equivalent circuit modes:
- Series/parallel equivalent models (e.g. series R‑L, parallel R‑C) selectable to match datasheet conventions.
- Ranging and speed:
- Auto range plus manual range; speed settings for fast scanning vs stable high‑accuracy readings.
- Bridge calibration:
- Open‑circuit and short‑circuit calibration to compensate for fixture and lead errors.
Important Advantages
- Lab‑grade capability in handheld form: 0.3% accuracy, 100 kHz test frequency, and full 4‑wire Kelvin connection give performance closer to benchtop LCR bridges at a portable price point.
- Deep parameter view: in addition to basic R/L/C values, the meter exposes ESR, Q/D, phase angle, etc., which is critical for power electronics, filter design, and diagnosing degraded capacitors or inductors.
- Versatile configuration: adjustable frequency, test level, and speed let the user balance accuracy, speed, and in‑circuit stress depending on the component and application.
- Clear, modern interface: large TFT display with adjustable brightness and bilingual menus improves usability compared with small monochrome displays on cheaper LCR meters.
- Long endurance: typical endurance time around 13 hours on a full charge (per user manual), suitable for full workdays of measurement.
Typical uses
- Professional electronics repair:
- Checking capacitors (value, ESR, D) on motherboards, TV power supplies, adapters, and audio equipment to identify aging or faulty parts.
- Evaluating inductors and transformers for correct inductance and losses in switch‑mode power supplies and DC‑DC converters.
- R&D, production, and QC:
- Component selection and binning for precision filters, oscillators, and RF/SMPS circuits by measuring R/L/C at the same frequency and level as intended use.
- Incoming inspection and quality control of passives in manufacturing lines, taking advantage of fast measuring speeds and open/short calibration.
- Education and lab work:
- Demonstrating frequency‑dependent behavior of capacitors and inductors, including Q, D, and phase, in labs or training courses.
- General LCR characterization alongside oscilloscopes and power analyzers in teaching labs.
Package Content*
1x ZOYI DQ01 LCR Digital Bridge Meter
