The HP/Agilent 4329A is a high-resistance meter engineered for precision measurement of very high resistance values spanning six decades, from 500 kΩ to 2 × 10¹⁶ Ω. The instrument applies seven selectable regulated DC test voltages (10 V to 1000 V) and measures leakage currents as low as 0.05 pA across eight current ranges. It serves critical roles in characterizing insulating materials, high-impedance components, and dielectric properties of capacitors, transformers, switches, and cables in electronics and materials science laboratories.
– Technical Specifications
• Resistance range: 500 kΩ to 2 × 10¹⁶ Ω
• Test voltages: 10 V, 25 V, 50 V, 100 V, 250 V, 500 V, 1000 V (seven selectable, regulated DC)
• Current range: 5 × 10⁻¹⁴ A to 2 × 10⁻⁵ A (eight ranges); minimum measurable current 0.05 pA
• Resistance accuracy: ±3% (low end), ±5% (center scale), +10% (upper limit); additional ±3% when multiplier set to Rₘₐₓ
• Current accuracy: ±5% of full-scale deflection; additional ±3% possible at top decade
• Recorder output: 0–100 mV DC proportional to meter deflection (1 kΩ output impedance)
• Power: 115/230 V ±10%, 50–60 Hz, approximately 3 VA
• Display: Analog meter with automatic scale indication
• Dimensions: 155 mm (H) × 198 mm (W) × 204 mm (D)
• Weight: 3.5 kg
– Key Features
• Instant conversion between ungrounded-to-grounded sample operation via front panel ground strap relocation
• Regulated test voltages eliminate measurement drift
• Picoampere-level current sensitivity for low-leakage diagnostics
– Typical Applications
• Volume and surface resistivity measurement of sheet insulation materials
• High-impedance characterization of synthetic resins, porcelain, and insulating oils
• Dielectric breakdown and leakage assessment in capacitors and transformers
• Cable and component insulation integrity testing
– Compatibility & Integration
• Compatible with HP 16008A Resistivity Cell (maximum sample: 125 mm W × 125 mm D × 7 mm H)
• Supplied with 1–2 HP 16117A Low Noise Test Leads (insulated BNC to alligator clip, banana plug to alligator clip)
• Recorder output enables integration with external data acquisition systems
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