The Keithley 7154 High Voltage Scanner Card is a plug-in module engineered for high-voltage signal routing within Keithley switching mainframes. This 8-channel scanner card (1-pole, 8-throw configuration) uses reed relays to deliver precise, reliable switching of elevated voltage levels across multiple test points in automated measurement systems. The card prioritizes signal integrity and electrical safety under demanding high-voltage conditions, making it essential for complex test configurations requiring meticulous voltage management.
Technical Specifications
• Channels: 8 channels, 1-pole, 8-throw (SP8T) configuration
• Switch Type: Reed relays optimized for high-voltage applications
• Contact Resistance: Milliohm range, variable by signal type and frequency
• Isolation Resistance: High impedance between channels and chassis ground
• Operating Temperature: 0°C to 50°C
• Storage Temperature: -40°C to 70°C
• Switching Speed: Millisecond range
• Relay Life Expectancy: Millions of operations, dependent on load and duty cycle
– Key Features
• Reed relay design suitable for secure high-voltage signal handling
• Low contact resistance for minimal signal degradation
• High isolation resistance ensuring signal integrity and safety margins
• Millisecond switching performance for dynamic test sequences
• Rated connectors for high-voltage input/output
– Typical Applications
• Dielectric strength testing
• High-voltage power supply testing
• Voltage routing in multi-point test configurations
– Compatibility & Integration
The 7154 integrates into Keithley Model 707, 707B, 708, and 708B Switching Mainframes as a standard plug-in module. Control is managed through the mainframe’s communication interface (IEEE-488, Ethernet) via Keithley Test Script Builder and compatible test automation software.
