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Keysight U1733C Handheld LCR Meter
The Keysight U1733C is a flagship 100 kHz handheld LCR meter delivering benchtop-grade measurement precision in a rugged, battery-powered portable package. Featuring an extended test frequency range up to 100 kHz, 0.2% basic accuracy, automated component identification (Ai), and direct Equivalent Series Resistance (ESR) measurements, it is designed for rapid on-site testing, incoming inspection, and field maintenance of passive components.
Features & Benefits
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Up to 100 kHz Test Frequency: Tests inductors, capacitors, and resistors across 5 selectable frequencies (100 Hz, 120 Hz, 1 kHz, 10 kHz, and 100 kHz) for true operating-condition validation.
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0.2% Basic Measurement Accuracy: Delivers laboratory-grade repeatability and high confidence across broad inductance, capacitance, and resistance ranges.
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Ai (Auto Identification) Technology: Intelligently identifies component types ($L/C/R$) and sets optimum parallel or series equivalent circuit models automatically.
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Direct ESR & Secondary Parameter Tracking: Instantaneously computes and displays Equivalent Series Resistance (ESR), Dissipation Factor ($D$), Quality Factor ($Q$), and Phase Angle ($\theta$).
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Backlit Dual 20,000-Count Display: Clear dual-line LCD allows simultaneous monitoring of primary values (e.g., capacitance) and secondary factors (e.g., ESR or dissipation).
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Optically Isolated PC Data Logging: Infrared (IR) to USB optical interface provides safe, electrical-noise-free measurement recording directly into PC software.
Description
Built to bridge the gap between benchtop impedance analyzers and field mobility, the Keysight U1733C allows engineers and technicians to test components at actual operating frequencies up to 100 kHz. This higher test frequency is essential for accurately characterizing high-frequency power supply inductors, RF decoupling capacitors, and low-ESR ceramic components that cannot be properly evaluated by conventional 1 kHz or 10 kHz hand-held instruments.
Specifications
| Specification Attribute | Details / Values |
| Brand / Manufacturer | Keysight Technologies |
| Model / MPN | U1733C |
| Product Series | U1730C Series Handheld LCR Meters |
| Test Frequencies | 100 Hz, 120 Hz, 1 kHz, 10 kHz, 100 kHz |
| Basic Accuracy | 0.2% basic accuracy for $C, L,$ and $R$ |
| Primary Parameters | Inductance ($L$), Capacitance ($C$), Resistance ($R$), Impedance ($Z$) |
| Secondary Parameters | Dissipation Factor ($D$), Quality Factor ($Q$), Phase Angle ($\theta$), ESR |
| Measurement Modes | Auto Identification (Ai), Parallel ($L_p, C_p, R_p$), Series ($L_s, C_s, R_s$) |
| Inductance Measurement Range | 20 µH to 2000 H (Resolution down to 0.001 µH) |
| Capacitance Measurement Range | 20 pF to 20 mF (Resolution down to 0.001 pF) |
| Resistance / ESR Range | 2 Ω to 200 MΩ (Resolution down to 0.0001 Ω) |
| Tolerance Mode / Sorting | 1%, 5%, 10%, 20% sorting limits with audible beeper |
| Display | Dual display LCD with backlight; Primary 20,000 counts, Secondary 2,000 counts |
| Data Logging & PC Interface | IR-to-USB optically isolated interface (supports optional U5481B IR-USB cable) |
| Safety & Environmental Standards | Safety: IEC 61010-1:2001 / EN 61010-1:2001; CE marked; Pollution Degree 2 |
| Power Source & Battery Life | Standard 9 V alkaline battery (6LR61) or optional AC power adapter; Approx. 16 hours battery life |
| Dimensions & Weight | 184 (H) × 87 (W) × 41 (D) mm; Approx. 337 g (with battery) |
| In The Box / Standard Accessories | Keysight U1733C Handheld Meter, Alligator Clip Leads, 9 V Alkaline Battery, Certificate of Calibration, Quick Start Guide |
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