Advantest R8340 Ultra High Resistance Meter

The Advantest R8340 Ultra High Resistance Meter is a precision instrument engineered for measuring extremely high resistance values and micro currents across insulation testing and material characterization applications. The meter combines an input amplifier gain switching type I-V converter, high-speed sampling A/D converter, and low-noise, high-response voltage generator to deliver both speed and measurement accuracy across an exceptionally wide dynamic range.

Technical Specifications

• Current measurement: 10 fA to 19.999 mA


• Resistance measurement: 10 Ω to 3 × 10^16 Ω


• DC voltage source: 0.000 V to 1000.0 V, continuously variable


• Floating measurement capability: Up to 550 Vpeak (R8340 model)


• Measurement speed: Up to 100 samples per second with high-speed charge/discharge capability


• Data storage: Up to 1000 measurement records


• Power supply options: 110 VAC or 230 VAC configurations with internal jumper selection

Key Features

• Floating measurements up to 550 Vpeak enable testing when one end of a coaxial cable is grounded


• Sequence Program Function stores and recalls measurement conditions; includes standard JIS C5102 measurement procedures


• Contact Check Function simplifies stable, precise measurements for routine testing


• Automatic Range Level Function delivers fast response measurements optimized for required digit resolution in current measurements


• Auditory alerts via buzzer signal COMPARE results (Hi/Lo), program completion, and system abnormalities

Typical Applications

• Testing and inspection of electric insulation materials including synthetic resin and rubber


• Measurement of switches, connectors, and capacitors


• Micro current measurement: ion current and leak current characterization


• Surface and volume resistivity measurements with optional accessories (R12704, R172708)

Compatibility & Integration

• GPIB interface conforming to IEEE 488-1978 standard


• Handler interface for integration with automatic test fixtures and handlers


• D/A output, BCD output, and trigger signal control via GPIB