The Keithley 6105 Resistivity Chamber is a guarded test fixture for precision measurement of volume and surface resistivities across a wide range of insulating materials. Operating with regulated power supplies and electrometers, it delivers accurate characterization from extremely low to extremely high resistance values while adhering to ASTM standards.
Technical Specifications
Measurement Ranges:
• Volume resistivity: 10 Ω-cm to 3 × 10¹⁹ Ω-cm
• Surface resistivity: 10³ Ω to 5 × 10¹⁸ Ω
• Test voltage: 1 V to 1000 V (maximum 1000 V)
Sample Dimensions:
• Diameter: 0.25 inches (0.635 cm) to 4 inches (10.2 cm)
• Thickness: 1/16 inch (0.159 cm) to 0.25 inches (0.635 cm)
Physical Characteristics:
• Dimensions: 6 inches wide × 4.5 inches deep × 4 inches high
• Weight: 3 pounds
• Connectors: Teflon-insulated UHF-type power receptacle; BNC-type electrometer receptacle
– Key Features
• Guarded electrode design minimizes leakage currents and stray pickup
• Spring-loaded, guarded electrode with test weight assembly applies uniform pressure to samples
• Electrodes conform to ASTM recommendations
• Shielded construction for measurement integrity across the full resistance range
• Compatible with Keithley high voltage supplies and electrometers
– Typical Applications
The 6105 characterizes volume and surface resistivity of insulators, semiconductors, and resistance-critical materials in research, quality assurance, and production environments where ASTM-compliant measurements are required.
– Compatibility & Integration
Recommended for use with Keithley Model 240A and Model 610C instruments. Also compatible with Model 614 electrometer. System integration with related Keithley high voltage and measurement equipment is supported through standard connectors.
















