Keysight 34921A Data Logger Multiplexer, 40-Channel

Keysight 34921A 40-Channel Multiplexer for Data Acquisition

The Keysight 34921A is a high-performance multiplexer module designed for use with Keysight data loggers, providing 40 two-wire channels for versatile signal routing. With a switching capacity of 300V and 1A, and a carry current of 2A, this module handles a wide range of industrial and laboratory signals. Its fast scanning rate of 100 channels per second ensures efficient data collection, making it an essential component for high-throughput testing and monitoring applications.

Key Features & Highlights

• 40 two-wire channels for high-density signal connection
• 300V, 1A switch, 2A carry current for robust signal handling
• 100 channels/sec scanning for rapid data acquisition
• Mix 2- or 4-wire configurations for flexible measurement setups
• Built-in thermocouple reference junction for accurate temperature measurements
• 4 current channels for current measurement capability
• Latching armature relays with relay counter for reliable switching and maintenance tracking

Applications

The Keysight 34921A is ideal for use in automated test systems, environmental monitoring, process control, and product validation. Its high channel count and fast scanning make it suitable for applications requiring simultaneous monitoring of multiple signals, such as temperature, voltage, and current in industrial settings.