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BK Precision 879B LCR Meter
The B&K Precision 879B is a versatile 40,000-count dual-display handheld LCR meter designed for accurate, on-the-go passive component characterization up to 10 kHz. Featuring a 0.5% basic accuracy, direct Equivalent Series Resistance (ESR) measurement, automated calculation of secondary parameters ($D, Q, \theta$), and mini-USB connectivity with SCPI command support, it provides laboratory-level confidence for field service and electronics bench testing.
Features & Benefits
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Selectable Test Frequencies up to 10 kHz: Evaluates inductors, capacitors, and resistors at 100 Hz, 120 Hz, 1 kHz, and 10 kHz for accurate operating-point characterization.
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Direct ESR Measurement: Rapidly identifies deteriorating, high-resistance capacitors in circuit boards without guesswork.
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Dual 40,000 / 10,000-Count Backlit Display: Concurrently monitors primary component values and secondary parameters ($D, Q, \theta, \text{ESR}$) under any lighting condition.
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0.5% Basic Measurement Accuracy: Delivers dependable, high-precision readings across broad capacitance, inductance, and resistance spans.
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Component Sorting & Tolerance Mode: Speeds up incoming QA inspections with selectable tolerance limits of $\pm$1%, $\pm$5%, $\pm$10%, and $\pm$20% with audible pass/fail beeper.
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Mini-USB Interface with SCPI Support: Facilitates remote control, test script automation, and continuous PC data logging via standard SCPI commands.
Description
Built for engineers, quality assurance inspectors, and field maintenance professionals, the B&K Precision 879B delivers fast and reliable component evaluations without requiring a dedicated benchtop station. The meter offers selectable test frequencies of 100 Hz, 120 Hz, 1 kHz, and 10 kHz, with selectable test signal levels (0.6 Vrms and 0.25 Vrms) to match diverse component testing standards. Its intelligent auto-ranging architecture automatically identifies series or parallel equivalent circuits, ensuring accurate impedance values across resistors, chokes, transformers, and capacitors.
Specifications
| Specification Attribute | Details / Values |
| Brand / Manufacturer | B&K Precision Corporation |
| Model / MPN | 879B |
| Product Category | Handheld Dual-Display LCR Meter with ESR |
| Test Frequencies | 100 Hz, 120 Hz, 1 kHz, 10 kHz |
| Test Signal Levels | 0.6 Vrms and 0.25 Vrms selectable |
| Basic Measurement Accuracy | 0.5% |
| Primary Parameters | Inductance ($L$), Capacitance ($C$), Resistance ($R$) |
| Secondary Parameters | Dissipation Factor ($D$), Quality Factor ($Q$), Phase Angle ($\theta$), ESR |
| Equivalent Circuit Modes | Series ($L_s, C_s, R_s$) and Parallel ($L_p, C_p, R_p$) selectable |
| Inductance ($L$) Range | 0.000 µH to 1000 H |
| Capacitance ($C$) Range | 0.000 pF to 20.000 mF |
| Resistance / ESR ($R$) Range | 0.000 Ω to 10.000 MΩ |
| Display Type & Resolution | Dual backlit LCD; Primary: 40,000 counts; Secondary: 10,000 counts |
| Sorting / Tolerance Limits | $\pm 1\%,\ \pm 5\%,\ \pm 10\%,\ \pm 20\%$ with audible tone |
| PC Connectivity | Mini-USB interface (Virtual COM port / SCPI command compliant) |
| Power Source | Standard 9 V battery or external 12 V DC / 110–240 V AC power adapter |
| Dimensions & Weight | 190 (H) × 90 (W) × 41 (D) mm; Approx. 0.35 kg (0.77 lbs) |
| Included In-Box Accessories | Banana plug to alligator test leads, 120 V / 220 V AC power adapter, 9 V battery, Mini-USB cable, Manual |
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