The Keithley 7706 is a versatile plug-in module designed for use with Keithley data loggers, offering 20 channels of 2-pole or 10 channels of 4-pole multiplexer switching with automatic cold-junction compensation (CJC). This module is ideal for temperature measurements using RTDs, thermistors, and thermocouples, providing accurate and reliable readings in industrial and laboratory environments.
Key Features & Highlights
- 20 channels of 2-pole or 10 channels of 4-pole multiplexer switching
- Automatic cold-junction compensation (CJC) for accurate thermocouple measurements
- Two analog output channels for stimulus or control
- 16 digital outputs for system integration
- Event counter/totalizer for monitoring and controlling system components such as fixtures, limit switches, pass/fail indicators, external voltage sources, loads, door closures, and revolutions
- Configurable as two independent banks of multiplexers
- Relay closures stored in on-board memory
- Latching electromechanical relays for reliable switching
- 300V, 1A capacity (60W, 125VA maximum)
- Low contact resistance: <1Ω at end of contact life
- Low contact potential: <±2µV typical per contact, 3µV maximum
- Low offset current: <100pA
Applications
The Keithley 7706 is well-suited for a wide range of data logging and control applications, including temperature monitoring in environmental chambers, process control, component testing, and automated test systems. Its event counter/totalizer capability makes it particularly useful for integrating with external devices and monitoring system events, while the analog output channels allow for closed-loop control or signal generation.
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