The Time Electronics 9811 is a programmable resistance instrument designed for automated testing and calibration environments. It provides selectable resistance values from 1 Ω to 1 MΩ with 1 Ω resolution and 0.01% accuracy. The unit operates via manual front-panel control or remote IEEE-488/GPIB commands, making it suitable for both standalone and integrated rack-mount applications.
Technical Specifications
• Resistance range: 1 Ω to 1 MΩ
• Selectable values: 100 Ω, 10 kΩ, 1 MΩ
• Resolution: 1 Ω
• Accuracy: 0.01%
• Residual resistance: 5 mΩ per decade
• Display: 6-digit LCD
• Bus isolation: Up to 350 V AC/DC
• Contact type: Double pole gold contacts
– Key Features
• Dual-mode operation: manual via thumbwheel switches or remote via IEEE bus
• IEEE-488/GPIB/IEC/HPIB interface with selectable device address (0–31)
• Programmable as standard resistance or potential divider
• Hexadecimal programming support for ratio-divider mode (0–15 per bank)
• Front-panel readback capability from remote mode
• Group Execute Trigger (G.E.T.) command support
• Configurable readback terminator for compatibility with different IEEE controllers
• 19-inch Euroframe construction with plug-in modular design
• Rack-mountable or freestanding case operation
– Typical Applications
Automated test and measurement systems requiring precision resistance insertion, equipment calibration platforms, potential divider configurations, and remote resistance control in laboratory or production environments.
– Compatibility & Integration
Standard 24-pin IEEE-488 connector. Commands transmitted in Ohms (direct mode) or hexadecimal format (divider mode) with carriage return or line-feed terminator. Supports local/remote mode switching and command execution on G.E.T. trigger. Operates best in dust-free, temperature-stable environments with shielding from direct sunlight and thermal EMF sources.
