The QuadTech 1868-11 is a resistivity test fixture engineered for use with the QuadTech 1868A megohmmeter. This accessory enables precise resistivity measurements across a wide range of materials and components, leveraging the 1868A’s advanced measurement and control capabilities to deliver accurate, repeatable results in laboratory and production environments.
Technical Specifications
• Compatibility: Designed for QuadTech 1868A megohmmeter
• Insulation Resistance Range: 10 kΩ to 1 PΩ
• Leakage Current Measurement: Down to 1 pA with basic accuracy of ± 2%
• Test Voltage (1868A): Programmable DC from 10 V to 1 kV in 1 V increments
• Charge Current (1868A): Selectable ranges of 2 mA, 25 mA, and 80 mA
• Resistance Accuracy: ± (2% of reading + 5 cnt) for Rx < 20 GΩ; ± 2% basic accuracy to 1 TΩ
• Leakage Current Accuracy: ± 2%
– Key Features
• Programmable test parameters: voltage, charge time, delay time, and discharge time
• Graphical LCD display with text, bar graph, and X-Y graph modes
• Internal storage for 4 tests (20 steps each); optional PCMCIA memory card expansion
• Floating power supply (1868A) for testing grounded devices
• Password protection for currents above 2 mA
• Automatic contact check function
• Multiple interfaces: RS232, GPIB (IEEE-488.2), and Remote I/O
– Typical Applications
• Material characterization of polymers, ceramics, and composite materials
• Component resistivity evaluation in electronic assemblies
• Quality control verification of resistivity standards in manufacturing
– Compatibility & Integration
The 1868-11 fixture integrates fully with the 1868A megohmmeter platform, enabling automated test sequences and data logging across multiple measurement cycles. System configuration and test parameters are controlled via standard laboratory interfaces.
